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The pandemic caused by COVID-19 has had an impact on the relationships established between different actors in organisations. To deal with these changes, it is necessary to develop a resilience capacity that allows for the establishment of different patterns of relationships through a new management model. The application of circularity principles implies a radical change in stakeholder relations, breaking with the “end-of-life” concept existing in linear economies. Furthermore, circular economy can ensure resilience in supply chains, and it can be considered as a tool in uncertain environments. Therefore, the objective of this study is to analyse the association between the customer–supplier relationships with circular supply chains based on the intellectual capital-based view theory. External capital is a crucial factor for organisations, and it helps with building remarkable capabilities for the whole supply chain due to collaboration and cooperation. This research contributes with a systematic revision of the literature regarding circular supply chains and customer–supplier external capital, providing an exploratory model. Establishing a closer and effective relationship with customers and suppliers supposes a differentiating value and competitive advantages. Actors involved in the supply chain are essential in the implementation of circularity in organisations for reducing waste production and returning resources to the production cycle. Therefore, circular networks related to customers’ behaviour, sustainable supplier election and IT tools play a key factor in improving resilience in supply chains.
Sara Alonso-Muñoz; Rocío González-Sánchez; Cristina Siligardi; Fernando García-Muiña. New Circular Networks in Resilient Supply Chains: An External Capital Perspective. Sustainability 2021, 13, 6130 .
AMA StyleSara Alonso-Muñoz, Rocío González-Sánchez, Cristina Siligardi, Fernando García-Muiña. New Circular Networks in Resilient Supply Chains: An External Capital Perspective. Sustainability. 2021; 13 (11):6130.
Chicago/Turabian StyleSara Alonso-Muñoz; Rocío González-Sánchez; Cristina Siligardi; Fernando García-Muiña. 2021. "New Circular Networks in Resilient Supply Chains: An External Capital Perspective." Sustainability 13, no. 11: 6130.
In this contribution we analyzed the Vanadium speciation and structural local environment in two V-bearing Na-phosphate glasses by means of V K-edge X-ray Absorption Spectroscopy. The two glasses have starting molar proportions Na2O:V2O5:P2O5 equal to 45:10:45 (NaPV10) and 10:80:10 (NaPV80). Accurate analysis of the pre-edge peak of the two glasses allowed to determine the presence of [4]V5+ and [5]V5+ in NaPV80 and of [5]V4+ and [6]V4+ in NaPV10. EXAFS derived V–O distances for the two glasses are in agreement with literature data for the above mentioned V species. The determined V local geometries and the EXAFS derived bond distances have been used to build four structural models for [4]V5+, [5]V5+, [5]V4+ and [6]V4+ in the studied glasses; these models have been in turn used to calculate theoretical XANES spectra by means of the MXAN code. The partial contributions of each V species have been summed in order to fit the experimental XANES spectra of the two glasses. Iterative fitting of the structural parameters of each structural model resulted in a good agreement between experimental and theoretical XANES data. The analysis strategy used in the present work allowed to gain information of V speciation and on the structural local environment of the [4]V5+, [5]V5+, [5]V4+ and [6]V4+ species present in the analyzed glasses. Combined use of different spectral regions and data analysis routines allowed to successfully simulate XANES spectra and to gain an in depth knowledge of V local environment even in a complex system like amorphous glass containing different V species.
Federico Benzi; Eleonora Paris; Stefano Della Longa; Consuelo Mugoni; Cristina Siligardi; Gabriele Giuli. V K-Edge XANES Full Multiple Scattering Study of V-Bearing Phosphate Glasses. Theoretical Frontiers in Black Holes and Cosmology 2021, 219 -231.
AMA StyleFederico Benzi, Eleonora Paris, Stefano Della Longa, Consuelo Mugoni, Cristina Siligardi, Gabriele Giuli. V K-Edge XANES Full Multiple Scattering Study of V-Bearing Phosphate Glasses. Theoretical Frontiers in Black Holes and Cosmology. 2021; ():219-231.
Chicago/Turabian StyleFederico Benzi; Eleonora Paris; Stefano Della Longa; Consuelo Mugoni; Cristina Siligardi; Gabriele Giuli. 2021. "V K-Edge XANES Full Multiple Scattering Study of V-Bearing Phosphate Glasses." Theoretical Frontiers in Black Holes and Cosmology , no. : 219-231.
Microplastics (MPs) are distributed in a wide range of aquatic and terrestrial ecosystems throughout the planet. They are known to adsorb hazardous substances and can transfer them across the trophic web. To eliminate MPs pollution in an environmentally friendly process, we propose using a photocatalytic process that can easily be implemented in wastewater treatment plants (WWTPs). As photocatalysis involves the formation of reactive species such as holes (h +), electrons (e −), hydroxyl (OH●), and superoxide ion (O2 ●−) radicals, it is imperative to determine the role of those species in the degradation process to design an effective photocatalytic system. However, for MPs, this information is limited in the literature. Therefore, we present such reactive species’ role in the degradation of high-density polyethylene (HDPE) MPs using C,N-TiO2. Tert-butanol, isopropyl alcohol (IPA), Tiron, and Cu(NO3)2 were confirmed as adequate OH●, h +, O2 ●− and e − scavengers. These results revealed for the first time that the formation of free OH● through the pathways involving the photogenerated e − plays an essential role in the MPs’ degradation. Furthermore, the degradation behaviors observed when h + and O2 ●− were removed from the reaction system suggest that these species can also perform the initiating step of degradation.
Aranza Vital-Grappin; Maria Ariza-Tarazona; Valeria Luna-Hernández; Juan Villarreal-Chiu; Juan Hernández-López; Cristina Siligardi; Erika Cedillo-González. The Role of the Reactive Species Involved in the Photocatalytic Degradation of HDPE Microplastics Using C,N-TiO2 Powders. Polymers 2021, 13, 999 .
AMA StyleAranza Vital-Grappin, Maria Ariza-Tarazona, Valeria Luna-Hernández, Juan Villarreal-Chiu, Juan Hernández-López, Cristina Siligardi, Erika Cedillo-González. The Role of the Reactive Species Involved in the Photocatalytic Degradation of HDPE Microplastics Using C,N-TiO2 Powders. Polymers. 2021; 13 (7):999.
Chicago/Turabian StyleAranza Vital-Grappin; Maria Ariza-Tarazona; Valeria Luna-Hernández; Juan Villarreal-Chiu; Juan Hernández-López; Cristina Siligardi; Erika Cedillo-González. 2021. "The Role of the Reactive Species Involved in the Photocatalytic Degradation of HDPE Microplastics Using C,N-TiO2 Powders." Polymers 13, no. 7: 999.
In this work, two series of glasses, i.e. (68-x) CuO – xV2O5 – 32TeO2 (x = 0–68 mol%, Te32 series) and (35-x) CuO – xV2O5 – 65TeO2 (x = 0–35 mol%, Te65 series), were synthesized by the melt-quenching method and subjected to physical, thermal and electrical characterization. Their vitreous nature was confirmed by X-Ray diffraction and differential scanning calorimetry, while their structural units were determined by Raman spectroscopy. CuO substitution by V2O5 led to a decrease in density and glass-transition temperature, together with a conductivity increase. Conduction mechanism was interpreted as mainly due to small polaron hopping from the lower (V4+) to the higher (V5+) vanadium valence states. Te32 glasses, possessing the highest electronic conductivities (ranging from 2 E−4 to 5 E−7 Ω−1 cm−1), were investigated by the Electron Paramagnetic Resonance technique, in order to more deeply analyze their structure-conductivity correlation. Particularly, the observed signals were determined to consist in a superposition of a first line due to paramagnetic Cu2+ ions and a second line due to exchange-coupled CuO clusters. Differences in the spectra were determined between samples with higher (i.e. 20-30 mol%) Cu2+ concentrations and samples with lower Cu2+ concentrations, suggesting they are located in different local environments. Finally, it was found that the Cu2+ ions are not involved in the process of electron transfer.
Consuelo Mugoni; Roberto Rosa; Roberto Giovanardi; Mario Affatigato; Magdalena Lassinantti Gualtieri; Cristina Siligardi; Sergey I. Andronenko; Sushil Kumar Misra. Synthesis and characterization of (68-x) CuO – xV2O5 – 32TeO2 (x = 0–68 mol%) and (35-x) CuO – xV2O5 – 65TeO2 (x = 0–35 mol%) glasses: Conduction mechanism, structure and EPR study. Materials Chemistry and Physics 2021, 266, 124488 .
AMA StyleConsuelo Mugoni, Roberto Rosa, Roberto Giovanardi, Mario Affatigato, Magdalena Lassinantti Gualtieri, Cristina Siligardi, Sergey I. Andronenko, Sushil Kumar Misra. Synthesis and characterization of (68-x) CuO – xV2O5 – 32TeO2 (x = 0–68 mol%) and (35-x) CuO – xV2O5 – 65TeO2 (x = 0–35 mol%) glasses: Conduction mechanism, structure and EPR study. Materials Chemistry and Physics. 2021; 266 ():124488.
Chicago/Turabian StyleConsuelo Mugoni; Roberto Rosa; Roberto Giovanardi; Mario Affatigato; Magdalena Lassinantti Gualtieri; Cristina Siligardi; Sergey I. Andronenko; Sushil Kumar Misra. 2021. "Synthesis and characterization of (68-x) CuO – xV2O5 – 32TeO2 (x = 0–68 mol%) and (35-x) CuO – xV2O5 – 65TeO2 (x = 0–35 mol%) glasses: Conduction mechanism, structure and EPR study." Materials Chemistry and Physics 266, no. : 124488.
The adaptation of the supply chain makes it an effective tool in the management of a circular economy, as it allows aspects of sustainability and regeneration to be incorporated into production. However, empirical evidence is still insufficient. In addition, the use of absorptive capacity theory provides a convenient context model that is adapted to the knowledge management required for the application of circularity principles. To study in depth the functioning of the circular supply chain, we use the dimension of exploitation of absorptive capacity, distinguishing between routines that allow adaptation to new production needs (technological knowledge) and new commercial needs (market knowledge). The empirical study was conducted on a sample of 9612 companies, divided into three levels of technology intensity manufacturing, from the PITEC panel using multivariate models. The results show that the operating routines associated with the use of production and logistics technologies developed in a circular fashion favor the development of new products. Similarly, a bidirectional knowledge flow is necessary. The first flow is toward the company with practices that allow a better understanding of the customer and their needs in the framework of the circular economy. The second flow would be toward customers, who need to be informed and educated through various marketing and communication activities to adapt their behavior to the principles of circularity.
Sara Alonso-Muñoz; Rocío González-Sánchez; Cristina Siligardi; Fernando García-Muiña. Building Exploitation Routines in the Circular Supply Chain to Obtain Radical Innovations. Resources 2021, 10, 22 .
AMA StyleSara Alonso-Muñoz, Rocío González-Sánchez, Cristina Siligardi, Fernando García-Muiña. Building Exploitation Routines in the Circular Supply Chain to Obtain Radical Innovations. Resources. 2021; 10 (3):22.
Chicago/Turabian StyleSara Alonso-Muñoz; Rocío González-Sánchez; Cristina Siligardi; Fernando García-Muiña. 2021. "Building Exploitation Routines in the Circular Supply Chain to Obtain Radical Innovations." Resources 10, no. 3: 22.
Nanostructured Lipid Carriers (NLC) were investigated with the purpose of promoting skin permeation of the highly lipophilic β-carotene (BC) across the stratum corneum (SC) barrier so that it may perform its antioxidant properties in photo-aging and epithelial skin cancer prevention. Two differently sized NLC samples were developed using stearic acid and squalene as lipid matrix and evaluated in comparison with Microstructured Lipid Carriers (MLC). The carriers were characterized for morphology, size, Z-potential, BC loading and release as well as physical state by means of DSC and XRPD analyses. In vivo penetration of the carriers was assessed on humans by determining BC concentrations within the SC stratum disjunctum and stratum compactum layers removed by means of the tape stripping test in comparison with pure BC. Unlike MLC and pure BC that were mostly retained within the outermost layers of the SC, the NLC sample having the smallest size (about 200 nm) has proved to penetrate more deeply into the SC barrier. Accordingly, the goal of providing β-carotene actions against oxidative damages within the looser skin viable tissues could be envisaged.
Eleonora Maretti; Eliana Leo; Cecilia Rustichelli; Eleonora Truzzi; Cristina Siligardi; Valentina Iannuccelli. In vivo β-carotene skin permeation modulated by Nanostructured Lipid Carriers. International Journal of Pharmaceutics 2021, 597, 120322 .
AMA StyleEleonora Maretti, Eliana Leo, Cecilia Rustichelli, Eleonora Truzzi, Cristina Siligardi, Valentina Iannuccelli. In vivo β-carotene skin permeation modulated by Nanostructured Lipid Carriers. International Journal of Pharmaceutics. 2021; 597 ():120322.
Chicago/Turabian StyleEleonora Maretti; Eliana Leo; Cecilia Rustichelli; Eleonora Truzzi; Cristina Siligardi; Valentina Iannuccelli. 2021. "In vivo β-carotene skin permeation modulated by Nanostructured Lipid Carriers." International Journal of Pharmaceutics 597, no. : 120322.
Microplastics (MPs), which are small plastic debris of ≤5 mm size, are polluting the oceans with negative consequences for their biota. In this work, visible-light photocatalysis of high-density polyethylene (HDPE) and low-density polyethylene (LDPE) MPs in aqueous medium using a mesoporous N–TiO2 coating is proposed as an alternative for fighting MP pollution. Spherical primary HDPE MPs were extracted from commercially available facial scrubs, while film-shaped secondary LDPE MPs were obtained from a plastic bag. For each plastic, two different sizes were tested. Degradation was measured by mass-loss and carbonyl-index (CI) calculation. The results obtained reveal that the photocatalytic degradation of HDPE and LDPE MPs using an N–TiO2 coating was affected by the size and shape of the MPs. Smaller MPs led to higher degradation, while film-shaped MPs led to lower degradation that was related to a poorly illuminated and oxygenated reaction medium. These results set the basis for further investigation on the on the design of more effective photocatalytic-reaction systems for decreasing MP inputs to the environment.
Brenda Llorente-García; Juan Hernández-López; Antonio Zaldívar-Cadena; Cristina Siligardi; Erika Cedillo-González. First Insights into Photocatalytic Degradation of HDPE and LDPE Microplastics by a Mesoporous N–TiO2 Coating: Effect of Size and Shape of Microplastics. Coatings 2020, 10, 658 .
AMA StyleBrenda Llorente-García, Juan Hernández-López, Antonio Zaldívar-Cadena, Cristina Siligardi, Erika Cedillo-González. First Insights into Photocatalytic Degradation of HDPE and LDPE Microplastics by a Mesoporous N–TiO2 Coating: Effect of Size and Shape of Microplastics. Coatings. 2020; 10 (7):658.
Chicago/Turabian StyleBrenda Llorente-García; Juan Hernández-López; Antonio Zaldívar-Cadena; Cristina Siligardi; Erika Cedillo-González. 2020. "First Insights into Photocatalytic Degradation of HDPE and LDPE Microplastics by a Mesoporous N–TiO2 Coating: Effect of Size and Shape of Microplastics." Coatings 10, no. 7: 658.
The huge annual production of wheat husk in Europe (10 million tons) creates management problems. Valorization options are thus sought. Here, insulting lime concrete was designed using native wheat husk as lightweight aggregate. Physical-chemical and technological properties of both particles and concretes were determined. Comparisons with hemp concrete manufactured with the same process were made. Similar thermal conductivities for the two types of concretes were obtained (ca. 0.09 W/(m·K)), whereas slightly lower compressive strength was found for wheat husk concrete due to weaker particle-binder interface. Nevertheless, results highlight the high potential of raw wheat husk for development of bio-based materials with interesting performances.
Virginia Barbieri; Magdalena Lassinantti Gualtieri; Cristina Siligardi. Wheat husk: A renewable resource for bio-based building materials. Construction and Building Materials 2020, 251, 118909 .
AMA StyleVirginia Barbieri, Magdalena Lassinantti Gualtieri, Cristina Siligardi. Wheat husk: A renewable resource for bio-based building materials. Construction and Building Materials. 2020; 251 ():118909.
Chicago/Turabian StyleVirginia Barbieri; Magdalena Lassinantti Gualtieri; Cristina Siligardi. 2020. "Wheat husk: A renewable resource for bio-based building materials." Construction and Building Materials 251, no. : 118909.
The active targeting to alveolar macrophages (AM) is an attractive strategy to improve the therapeutic efficacy of ‘old’ drugs currently used in clinical practice for the treatment of pulmonary tuberculosis. Previous studies highlighted the ability of respirable solid lipid nanoparticle assemblies (SLNas), loaded with rifampicin (RIF) and functionalized with a novel synthesized mannose-based surfactant (MS), both alone and in a blend with sodium taurocholate, to efficiently target the AM via mannose receptor-mediated mechanism. Here, we present the in vivo biodistribution of these mannosylated SLNas, in comparison with the behavior of both non-functionalized SLNas and bare RIF. SLNas biodistribution was assessed, after intratracheal instillation in mice, by whole-body real-time fluorescence imaging in living animals and RIF quantification in excised organs and plasma. Additionally, SLNas cell uptake was determined by using fluorescence microscopy on AM from bronchoalveolar lavage fluid and alveolar epithelium from lung dissections. Finally, histopathological evaluation was performed on lungs 24 h after administration. SLNas functionalized with MS alone generated the highest retention in lungs associated with a poor spreading in extra-pulmonary regions. This effect could be probably due to a greater AM phagocytosis with respect to SLNas devoid of mannose on their surface. The results obtained pointed out the unique ability of the nanoparticle surface decoration to provide a potential more efficient treatment restricted to the lungs where the primary tuberculosis infection is located.
Eleonora Truzzi; Thais Leite Nascimento; Valentina Iannuccelli; Luca Costantino; Eliana Martins Lima; Eliana Leo; Cristina Siligardi; Magdalena Lassinantti Gualtieri; Eleonora Maretti. In Vivo Biodistribution of Respirable Solid Lipid Nanoparticles Surface-Decorated with a Mannose-Based Surfactant: A Promising Tool for Pulmonary Tuberculosis Treatment? Nanomaterials 2020, 10, 568 .
AMA StyleEleonora Truzzi, Thais Leite Nascimento, Valentina Iannuccelli, Luca Costantino, Eliana Martins Lima, Eliana Leo, Cristina Siligardi, Magdalena Lassinantti Gualtieri, Eleonora Maretti. In Vivo Biodistribution of Respirable Solid Lipid Nanoparticles Surface-Decorated with a Mannose-Based Surfactant: A Promising Tool for Pulmonary Tuberculosis Treatment? Nanomaterials. 2020; 10 (3):568.
Chicago/Turabian StyleEleonora Truzzi; Thais Leite Nascimento; Valentina Iannuccelli; Luca Costantino; Eliana Martins Lima; Eliana Leo; Cristina Siligardi; Magdalena Lassinantti Gualtieri; Eleonora Maretti. 2020. "In Vivo Biodistribution of Respirable Solid Lipid Nanoparticles Surface-Decorated with a Mannose-Based Surfactant: A Promising Tool for Pulmonary Tuberculosis Treatment?" Nanomaterials 10, no. 3: 568.
Magnesium oxysulfates (MOS), obtained by hydration of MgO in MgSO4 solution, are highly interesting as binders in lightweight building materials due to their environmental sustainability and promising technological properties. Recent focus has been concentrated on tailoring the phase composition towards 5Mg(OH)2·MgSO4·7H2O (517 phase) by using various additives (e.g. citric acid) that generally act as retarders of the direct hydration of Mg(OH)2, a competing phase in this system. In this work, macromolecules of vegetal origin were investigated as possible retarders to promote the crystallization of the 517 phase. Isothermal and semi-adiabatic hydration experiments were performed, together with thorough microstructural investigations of hardened cements by electron microscopy techniques (SEM, TEM) as well as X-ray powder diffraction and quantitative phase analyses by Rietveld refinements. The results show a temperature and time dependent retardant effect that is only effective in promoting the crystallization of the 517 phase at ambient temperature. Implications for the manufacturing of lightweight concrete are discussed.
Virginia Barbieri; Magdalena Lassinantti Gualtieri; Tiziano Manfredini; Cristina Siligardi. Hydration kinetics and microstructural development of a magnesium oxysulfate cement modified by macromolecules. Construction and Building Materials 2020, 248, 118624 .
AMA StyleVirginia Barbieri, Magdalena Lassinantti Gualtieri, Tiziano Manfredini, Cristina Siligardi. Hydration kinetics and microstructural development of a magnesium oxysulfate cement modified by macromolecules. Construction and Building Materials. 2020; 248 ():118624.
Chicago/Turabian StyleVirginia Barbieri; Magdalena Lassinantti Gualtieri; Tiziano Manfredini; Cristina Siligardi. 2020. "Hydration kinetics and microstructural development of a magnesium oxysulfate cement modified by macromolecules." Construction and Building Materials 248, no. : 118624.
Similar to common building materials, TiO2 self-cleaning construction materials are exposed to the impact of humidity during their life cycle. This factor influences their photocatalytic stain removal, compromising their successful commercialization. The effect of relative humidity (RH) on the stain removal performance of porous and non-porous TiO2 self-cleaning coatings is presented. Results showed that humidity influences the hydration of clean TiO2 coatings and the photocatalytic activity due to this condition, but has less influence when a stain is already covering the coating. The porous and non-porous coatings present the best performance at RH ≥35.1% and RH = 53.4%, respectively.
Erika Iveth Cedillo-González; Juan Manuel Hernández-López; Juan Jacobo Ruiz-Valdés; Virginia Barbieri; Cristina Siligardi. Self-cleaning TiO2 coatings for building materials: The influence of morphology and humidity in the stain removal performance. Construction and Building Materials 2019, 237, 117692 .
AMA StyleErika Iveth Cedillo-González, Juan Manuel Hernández-López, Juan Jacobo Ruiz-Valdés, Virginia Barbieri, Cristina Siligardi. Self-cleaning TiO2 coatings for building materials: The influence of morphology and humidity in the stain removal performance. Construction and Building Materials. 2019; 237 ():117692.
Chicago/Turabian StyleErika Iveth Cedillo-González; Juan Manuel Hernández-López; Juan Jacobo Ruiz-Valdés; Virginia Barbieri; Cristina Siligardi. 2019. "Self-cleaning TiO2 coatings for building materials: The influence of morphology and humidity in the stain removal performance." Construction and Building Materials 237, no. : 117692.
The mimicking of physiological conditions is crucial for the success of accurate in vitro studies. For inhaled nanoparticles, which are designed for being deposited on alveolar epithelium and taken up by macrophages, it is relevant to investigate the interactions with pulmonary surfactant lining alveoli. As a matter of fact, the formation of a lipid corona layer around the nanoparticles could modulate the cell internalization and the fate of the transported drugs. Based on this concept, the present research focused on the interactions between pulmonary surfactant and Solid Lipid Nanoparticle assemblies (SLNas), loaded with rifampicin, an anti-tuberculosis drug. SLNas were functionalized with a synthesized mannosylated surfactant, both alone and in a blend with sodium taurocholate, to achieve an active targeting to mannose receptors present on alveolar macrophages (AM). Physico-chemical properties of the mannosylated SLNas satisfied the requirements relative to suitable respirability, drug payload, and AM active targeting. Our studies have shown that a lipid corona is formed around SLNas in the presence of Curosurf, a commercial substitute of the natural pulmonary surfactant. The lipid corona promoted an additional resistance to the drug diffusion for SLNas functionalized with the mannosylated surfactant and this improved drug retention within SLNas before AM phagocytosis takes place. Moreover, lipid corona formation did not modify the role of nanoparticle mannosylation towards the specific receptors on MH-S cell membrane.
Eleonora Maretti; Cecilia Rustichelli; Magdalena Lassinantti Gualtieri; Luca Costantino; Cristina Siligardi; Paola Miselli; Francesca Buttini; Monica Montecchi; Eliana Leo; Eleonora Truzzi; Valentina Iannuccelli. The Impact of Lipid Corona on Rifampicin Intramacrophagic Transport Using Inhaled Solid Lipid Nanoparticles Surface-Decorated with a Mannosylated Surfactant. Pharmaceutics 2019, 11, 508 .
AMA StyleEleonora Maretti, Cecilia Rustichelli, Magdalena Lassinantti Gualtieri, Luca Costantino, Cristina Siligardi, Paola Miselli, Francesca Buttini, Monica Montecchi, Eliana Leo, Eleonora Truzzi, Valentina Iannuccelli. The Impact of Lipid Corona on Rifampicin Intramacrophagic Transport Using Inhaled Solid Lipid Nanoparticles Surface-Decorated with a Mannosylated Surfactant. Pharmaceutics. 2019; 11 (10):508.
Chicago/Turabian StyleEleonora Maretti; Cecilia Rustichelli; Magdalena Lassinantti Gualtieri; Luca Costantino; Cristina Siligardi; Paola Miselli; Francesca Buttini; Monica Montecchi; Eliana Leo; Eleonora Truzzi; Valentina Iannuccelli. 2019. "The Impact of Lipid Corona on Rifampicin Intramacrophagic Transport Using Inhaled Solid Lipid Nanoparticles Surface-Decorated with a Mannosylated Surfactant." Pharmaceutics 11, no. 10: 508.
This work is related to the preliminary lab‐scale preparation of ceramic slabs, reproducing the characteristics of natural stones, containing up to more than 40 wt.% of different waste materials, namely laboratory glass, cullet glass (both thought as fluxing agents replacing feldspar) and ceramic waste obtained from drying squaring operations (for partial quartz sand replacement). Indeed, in order to pursue the circular economy principles, the possibility of turning different kinds of wastes into resources for the ceramic industry, surely represents the first concern to be addressed and demonstrated, with also the aim to reduce the environmental impact associated with landfill, minimizing manufacturing cost and contributing to preserve non‐ renewable natural resources, which are known to be consistently depleted by the ceramic industries.
Consuelo Mugoni; Roberto Rosa; Vito Antonio Remigio; Anna Maria Ferrari; Cristina Siligardi. Opportune inward waste materials toward a zero waste ceramic slabs production in a circular economy perspective. International Journal of Applied Ceramic Technology 2019, 17, 32 -41.
AMA StyleConsuelo Mugoni, Roberto Rosa, Vito Antonio Remigio, Anna Maria Ferrari, Cristina Siligardi. Opportune inward waste materials toward a zero waste ceramic slabs production in a circular economy perspective. International Journal of Applied Ceramic Technology. 2019; 17 (1):32-41.
Chicago/Turabian StyleConsuelo Mugoni; Roberto Rosa; Vito Antonio Remigio; Anna Maria Ferrari; Cristina Siligardi. 2019. "Opportune inward waste materials toward a zero waste ceramic slabs production in a circular economy perspective." International Journal of Applied Ceramic Technology 17, no. 1: 32-41.
Even though copper slags have many possible applications, their disposal is still practiced, creating long‐term waste‐management problems. This led to the investigation of new products for residential applications, taking advantages of the interesting chemical properties of copper slag. This study aims to assess the environmental impact of the use of copper slag as secondary raw material in a ceramic glaze composition and to compare it with a traditional glaze. A manufacturing process was designed, through an industrial scale up operation from experimental laboratory data and the entire life cycle of the products was analyzed using the Life Cycle Assessment methodology (LCA). Considering the production of a ceramic glaze containing copper slag, the most impacting process resulted the one related to frit production, due to the large amount of thermal energy necessary for the raw materials melting. The comparative LCA analysis carried out between the frit obtained from metallurgical slags and a traditional one, demonstrated that the innovative ceramic frit has a greater environmental advantage. The LCA analysis allowed to highlight the most impactful stages of an industrial process using copper slag as a secondary raw material for glaze production and to quantify the potential environmental advantages of this operation.
Sara Mohaddes Khorassani; Cristina Siligardi; Consuelo Mugoni; Martina Pini; Grazia Maria Cappucci; Anna Maria Ferrari. Life cycle assessment of a ceramic glaze containing copper slags and its application on ceramic tile. International Journal of Applied Ceramic Technology 2019, 17, 42 -54.
AMA StyleSara Mohaddes Khorassani, Cristina Siligardi, Consuelo Mugoni, Martina Pini, Grazia Maria Cappucci, Anna Maria Ferrari. Life cycle assessment of a ceramic glaze containing copper slags and its application on ceramic tile. International Journal of Applied Ceramic Technology. 2019; 17 (1):42-54.
Chicago/Turabian StyleSara Mohaddes Khorassani; Cristina Siligardi; Consuelo Mugoni; Martina Pini; Grazia Maria Cappucci; Anna Maria Ferrari. 2019. "Life cycle assessment of a ceramic glaze containing copper slags and its application on ceramic tile." International Journal of Applied Ceramic Technology 17, no. 1: 42-54.
The purpose of this paper is to determine indices of environmental, economic and social sustainability related to the Italian production of ceramic tiles in porcelain stoneware in order to contribute to the construction of a reference benchmarking useful to decision makers, designers and end users of ceramic tiles. To achieve this goal, this paper is based on the Life Cycle Sustainability Assessment (LCSA) framework that incorporates the three dimensions of sustainability with cradle-to-grave Life Cycle Assessment (LCA), Life Cycle Costing (LCC) and Social Life Cycle Assessment (S-LCA) tools. The study has shown that in the production of porcelain stoneware one of the major environmental problems, in addition to production in the strict sense, is the distribution system of the product to end users and, to a lesser extent but always significant, the process of supplying raw materials. Finally, it was highlighted that the joint use of the three impact assessment tools (LCA, LCC, S-LCA) requires further methodological work to avoid the risk of double counting of sustainability performance. This research has adopted a detailed methodological approach, both in the collection and in the processing of data, keeping the main phases of the production process separate. In this way, it has been possible to highlight that the major environmental criticalities are just beyond the “gate” of the ceramic factories, along the logistics chain. The study also proposes for the Italian ceramic sector not only indicators of environmental sustainability but also economic and social.
Anna Maria Ferrari; Lucrezia Volpi; Martina Pini; Cristina Siligardi; Fernando Enrique García-Muiña; Davide Settembre-Blundo. Building a Sustainability Benchmarking Framework of Ceramic Tiles Based on Life Cycle Sustainability Assessment (LCSA). Resources 2019, 8, 11 .
AMA StyleAnna Maria Ferrari, Lucrezia Volpi, Martina Pini, Cristina Siligardi, Fernando Enrique García-Muiña, Davide Settembre-Blundo. Building a Sustainability Benchmarking Framework of Ceramic Tiles Based on Life Cycle Sustainability Assessment (LCSA). Resources. 2019; 8 (1):11.
Chicago/Turabian StyleAnna Maria Ferrari; Lucrezia Volpi; Martina Pini; Cristina Siligardi; Fernando Enrique García-Muiña; Davide Settembre-Blundo. 2019. "Building a Sustainability Benchmarking Framework of Ceramic Tiles Based on Life Cycle Sustainability Assessment (LCSA)." Resources 8, no. 1: 11.
Purpose The purpose of this paper is to analyse the production cycle of glazed porcelain stoneware, from the extraction of raw materials to the packaging of the finished product, with the aim of verifying the effects of integrating an environmental impact assessment into the decision-making process for managing the life cycle, to make it economically and ecologically sustainable, in a holistic approach along the supply-chain. Design/methodology/approach The research is performed using the life cycle assessment and life cycle costing methodologies, to identify environmental impacts and costs, that occur during extraction of raw materials, transportation, ceramic tiles production, material handling, distribution and end-of-life stages within a cradle to grave perspective. Findings Through the use of a comprehensive analysis of the environmental impact assessment and related externalities, three possible strategic options to improve the environmental performance and costs of ceramic tile production were formulated, leveraging sustainability as a competitive advantage. Research limitations/implications This exploratory research opens future lines of investigation, the first of which is to confirm the technological feasibility and market responsiveness to the three strategic solutions hypothesised thanks to the use of an innovative eco-design technique. Originality/value The research has allowed testing and validating the tools of environmental impact assessment (life cycle assessment) and economic impact assessment (life cycle costing as structured methodologies in a life cycle management framework, to help companies implement competitive strategies based on sustainability.
Davide Settembre Blundo; Fernando Enrique García Muiña; Martina Pini; Lucrezia Volpi; Cristina Siligardi; Anna Maria Ferrari. Lifecycle-oriented design of ceramic tiles in sustainable supply chains (SSCs). Asia Pacific Journal of Innovation and Entrepreneurship 2018, 12, 323 -337.
AMA StyleDavide Settembre Blundo, Fernando Enrique García Muiña, Martina Pini, Lucrezia Volpi, Cristina Siligardi, Anna Maria Ferrari. Lifecycle-oriented design of ceramic tiles in sustainable supply chains (SSCs). Asia Pacific Journal of Innovation and Entrepreneurship. 2018; 12 (3):323-337.
Chicago/Turabian StyleDavide Settembre Blundo; Fernando Enrique García Muiña; Martina Pini; Lucrezia Volpi; Cristina Siligardi; Anna Maria Ferrari. 2018. "Lifecycle-oriented design of ceramic tiles in sustainable supply chains (SSCs)." Asia Pacific Journal of Innovation and Entrepreneurship 12, no. 3: 323-337.
Currently, the global community considers microplastics as a marine pollutant of emerging concern. To mitigate the oceanic microplastic pollution, it is necessary to reduce inputs from inland. In this sense, we present the first report on the use of photocatalysis for the degradation of HDPE microplastics extracted from a commercially available facial scrub. This was achieved by using two proposed semiconductors based on N-TiO2. One was green synthesized using the extrapallial fluid of fresh blue mussels, which presented an excellent capacity to promote photocatalytic degradation in solid and aqueous environments; while the second photocatalyst, obtained from a conventional sol-gel synthesis, presented good capacity to promote mass loss of the as-extracted microplastics in an aqueous environment. Mass losses, SEM and FTIR analysis confirmed HDPE degradation. Results showed that environmental conditions, microplastics/N-TiO2 interaction and the N-TiO2 surface area should be carefully set and monitored in order of avoiding the arrest of photocatalysis.
Maria Camila Ariza-Tarazona; Juan Francisco Villarreal-Chiu; Virginia Barbieri; Cristina Siligardi; Erika Iveth Cedillo-González. New strategy for microplastic degradation: Green photocatalysis using a protein-based porous N-TiO2 semiconductor. Ceramics International 2018, 45, 9618 -9624.
AMA StyleMaria Camila Ariza-Tarazona, Juan Francisco Villarreal-Chiu, Virginia Barbieri, Cristina Siligardi, Erika Iveth Cedillo-González. New strategy for microplastic degradation: Green photocatalysis using a protein-based porous N-TiO2 semiconductor. Ceramics International. 2018; 45 (7):9618-9624.
Chicago/Turabian StyleMaria Camila Ariza-Tarazona; Juan Francisco Villarreal-Chiu; Virginia Barbieri; Cristina Siligardi; Erika Iveth Cedillo-González. 2018. "New strategy for microplastic degradation: Green photocatalysis using a protein-based porous N-TiO2 semiconductor." Ceramics International 45, no. 7: 9618-9624.
Glazed ceramic tiles are used for wall and floor covering thanks to theirs high resistance to chemicals attacks, although big efforts should be done to increase their surfaces resistance to mechanical stresses. This study investigates the applicability of a well‐known glass hardening process to glazed ceramic tiles following a rational design based on Design of Experiments technique. A Mixture Design has been carried out to formulate new frits compositions to enhance the ion exchange process, starting from a commercial product. Vickers Hardness and SEM‐EDS techniques have been employed to evaluate the frits and elaborate the model. Results suggest that frits for ceramic tiles are positively affected by ion exchange process only if an appropriate combination of ions in the starting composition is present, establishing a new category of frit formulations suitable for that purpose. The results have been confirmed employing the optimized frit for the glazing of porcelain stoneware. This article is protected by copyright. All rights reserved.
Silvia Barbi; Consuelo Mugoni; Monia Montorsi; Cristina Siligardi. Chemical hardening of glazed porcelain tiles. Journal of the American Ceramic Society 2018, 1 .
AMA StyleSilvia Barbi, Consuelo Mugoni, Monia Montorsi, Cristina Siligardi. Chemical hardening of glazed porcelain tiles. Journal of the American Ceramic Society. 2018; ():1.
Chicago/Turabian StyleSilvia Barbi; Consuelo Mugoni; Monia Montorsi; Cristina Siligardi. 2018. "Chemical hardening of glazed porcelain tiles." Journal of the American Ceramic Society , no. : 1.
The current study deals with the development of low-temperature stoneware tiles with boron-rich waste glass as sintering promotor in a modified triaxial ceramic body. The obtained results are part of a larger project financed by the Italian region of Emilia Romagna and aiming at developing novel formulations for sustainable ceramic products classified as porcelain stoneware. We successfully obtained highly vitrified ceramic tiles (BIa class) at a firing temperature almost 140 °C lower than those normally applied for this product by modifying a traditional triaxial composition and including waste glass. The ecological sustainability was thus improved by lower emissions and substitution of natural raw materials with secondary ones. Pilot scale trials confirmed full adaptability to existing powder processing routes. The microstructure and the temperature-induced phase evolution were analyzed by Scanning electron microscopy (SEM) and quantitative phase analyses using X-ray Powder Diffraction (XRPD) and the Rietveld method. It will be shown that the triaxial body minerals are highly reactive in the boron-rich viscous melt leading to eutectic melting and recrystallization. The high reactivity renders this particular ceramic system flexible in terms of liquid phase composition and post-firing crystal assemblages and is therefore suitable as a base system for design of sustainable ceramic products.
Magdalena Lassinantti Gualtieri; Consuelo Mugoni; Sara Guandalini; Andrea Cattini; Denia Mazzini; Claudio Alboni; Cristina Siligardi. Glass recycling in the production of low-temperature stoneware tiles. Journal of Cleaner Production 2018, 197, 1531 -1539.
AMA StyleMagdalena Lassinantti Gualtieri, Consuelo Mugoni, Sara Guandalini, Andrea Cattini, Denia Mazzini, Claudio Alboni, Cristina Siligardi. Glass recycling in the production of low-temperature stoneware tiles. Journal of Cleaner Production. 2018; 197 ():1531-1539.
Chicago/Turabian StyleMagdalena Lassinantti Gualtieri; Consuelo Mugoni; Sara Guandalini; Andrea Cattini; Denia Mazzini; Claudio Alboni; Cristina Siligardi. 2018. "Glass recycling in the production of low-temperature stoneware tiles." Journal of Cleaner Production 197, no. : 1531-1539.
Lightweight impermeable ceramic bodies were designed by combining pore templating and controlled viscous sintering through in-situ crystallization. Various amounts of limestone were added to a glass-fluxed low-temperature stoneware tile formulation. Closed porosity was created by decomposition of carbonates prior to sintering, thus leaving voids that were not completely filled by the viscous melt. The resulting oxides chemically modified the liquid phase and promoted the crystallization of β-wollastonite, diopside and anorthite. Hence, viscous sintering was affected. The addition of limestone brought on several advantages: the temperature of maximum sintering rate was decreased (<900 °C); the dimensional stability range was extended; the matrix was reinforced by newly-formed crystals that compensated for the global structure weakening evoked by increased porosity; an increase in whiteness was observed in concomitance to crystallization, reaching values only obtained when using zircon as opacifier (L* = 87).
Magdalena Lassinantti Gualtieri; Elena Colombini; Denia Mazzini; Claudio Alboni; Tiziano Manfredini; Cristina Siligardi. The effect of alkaline earth carbonates on the microstructure and mechanical properties of impermeable and lightweight ceramics. Journal of the European Ceramic Society 2018, 38, 5563 -5568.
AMA StyleMagdalena Lassinantti Gualtieri, Elena Colombini, Denia Mazzini, Claudio Alboni, Tiziano Manfredini, Cristina Siligardi. The effect of alkaline earth carbonates on the microstructure and mechanical properties of impermeable and lightweight ceramics. Journal of the European Ceramic Society. 2018; 38 (16):5563-5568.
Chicago/Turabian StyleMagdalena Lassinantti Gualtieri; Elena Colombini; Denia Mazzini; Claudio Alboni; Tiziano Manfredini; Cristina Siligardi. 2018. "The effect of alkaline earth carbonates on the microstructure and mechanical properties of impermeable and lightweight ceramics." Journal of the European Ceramic Society 38, no. 16: 5563-5568.