Razvan-Mihai Prisada

Dr. Razvan-Mihai Prisada

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 November 2021 in Pharmaceuticals
Verified
Journal Article
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ETElena-Emilia Tudoroiu
Elena-Emilia Tudoroiu
Cristina Elena Dinu-PîrvuCristina Elena Dinu-Pîrvu
Cristina Elena Dinu-Pîrvu
MAMadalina Georgiana Albu
Madalina Georgiana Albu
LACRAMIOARA POPALACRAMIOARA POPA
LACRAMIOARA POPA
VAValentina Anuta
Valentina Anuta
Mihaela Violeta GhicaMihaela Violeta Ghica
Mihaela Violeta Ghica
Presently, notwithstanding the progress regarding wound-healing management, the treatment of the majority of skin lesions still represents a serious challenge for biomedical and pharmaceutical industries. Thus, the attention of the researchers has turned to the development of novel materials based on cellulose derivatives. Cellulose derivatives are semi-synthetic biopolymers, which exhibit high solubility in water and represent an advantageous alternative to water-insoluble cellulose. These biopolymers possess excellent properties, such as biocompatibility, biodegradability, sustainability, non-toxicity, non-immunogenicity, thermo-gelling behavior, mechanical strength, abundance, low costs, antibacterial effect, and high hydrophilicity. They have an efficient ability to absorb and retain a large quantity of wound exudates in the interstitial sites of their networks and can maintain optimal local moisture. Cellulose derivatives also represent a proper scaffold to incorporate various bioactive agents with beneficial therapeutic effects on skin tissue restoration. Due to these suitable and versatile characteristics, cellulose derivatives are attractive and captivating materials for wound-healing applications. This review presents an extensive overview of recent research regarding promising cellulose derivatives-based materials for the development of multiple biomedical and pharmaceutical applications, such as wound dressings, drug delivery devices, and tissue engineering.

12 October 2024 in Pharmacy
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Journal Article
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Marius Călin CherecheșMarius Călin Cherecheș
Marius Călin Cherecheș
HFHAJNAL FINTA
HAJNAL FINTA
RPRazvan-Mihai Prisada
Razvan-Mihai Prisada
Aura RusuAura Rusu
Aura Rusu
Pharmacists, essential healthcare providers, face significant challenges in professional satisfaction and well-being. This study investigates the factors influencing pharmacists’ professional satisfaction, mainly focusing on workload, organizational support, job autonomy, work–life balance, and resilience against burnout. Data were collected from relevant online forums on Facebook and Reddit using a netnographic methodology. The data were anonymized and thematically coded to identify key themes from 23 conversation threads, primarily involving or concerning Romanian pharmacists. The analysis revealed several critical issues: widespread dissatisfaction with salaries, challenges in professional recognition, and the demanding nature of university education. Additional themes included economic and financial insights, global trends and technological impacts, personal experiences and satisfaction, professional growth and education, regulatory and market environment, and workplace dynamics. Findings indicate these factors significantly impact pharmacists’ job satisfaction and overall well-being. The study concludes that addressing these issues through targeted interventions, such as policy reforms, educational updates, and enhanced organizational support, can improve the professional lives of pharmacists, thereby enhancing their contributions to healthcare outcomes.

15 March 2025 in Gels
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Journal Article
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VAValentina Anuta
Valentina Anuta
MNMihaela Nica
Mihaela Nica
RPRazvan-Mihai Prisada
Razvan-Mihai Prisada
LACRAMIOARA POPALACRAMIOARA POPA
LACRAMIOARA POPA
Bruno Stefan VelescuBruno Stefan Velescu
Bruno Stefan Velescu
Cristina Elena Dinu-PîrvuCristina Elena Dinu-Pîrvu
Cristina Elena Dinu-Pîrvu
Buccal drug delivery systems often struggle with poor drug solubility, limited adhesion, and rapid clearance, leading to suboptimal therapeutic outcomes. To address these limitations, we developed a novel hybrid eutectogel composed of xanthan gum (XTG), hyaluronic acid (HA), and a Natural Deep Eutectic Solvent (NADES) system (choline chloride, sorbitol, and glycerol in 2:1:1 mole ratio), incorporating 2.5% ibuprofen (IBU) as a model drug. The formulation was optimized using a face-centered central composite design to enhance the rheological, textural, and drug release properties. The optimized eutectogels exhibited shear-thinning behavior (flow behavior index, n = 0.26 ± 0.01), high mucoadhesion (adhesiveness: 2.297 ± 0.142 N·s), and sustained drug release over 24 h, governed by Higuchi kinetics (release rate: 237.34 ± 13.61 μg/cm2/min1/2). The ex vivo residence time increased substantially with NADES incorporation, reaching up to 176.7 ± 23.1 min. An in vivo anti-inflammatory evaluation showed that the eutectogel reduced λ-carrageenan-induced paw edema within 1 h and that its efficacy was sustained in the kaolin model up to 24 h (p < 0.05), achieving comparable efficacy to a commercial 5% IBU gel, despite a lower drug concentration. Additionally, the eutectogel presented a minimum inhibitory concentration for Gram-positive bacteria of 25 mg/mL, and through direct contact, it reduced microbial viability by up to 100%. Its efficacy against Bacillus cereus, Enterococcus faecium, and Klebsiella pneumoniae, combined with its significant anti-inflammatory properties, positions the NADES-based eutectogel as a promising multifunctional platform for buccal drug delivery, particularly for inflammatory conditions complicated by bacterial infections.

Verified
Journal Article
Open access
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VAValentina Anuta
Valentina Anuta
MTMarina-Theodora Talianu
Marina-Theodora Talianu
Cristina Elena Dinu-PîrvuCristina Elena Dinu-Pîrvu
Cristina Elena Dinu-Pîrvu
Mihaela Violeta GhicaMihaela Violeta Ghica
Mihaela Violeta Ghica
RPRazvan-Mihai Prisada
Razvan-Mihai Prisada
LACRAMIOARA POPALACRAMIOARA POPA
LACRAMIOARA POPA
Oral candidiasis has a high rate of development, especially in immunocompromised patients. Immunosuppressive and cytotoxic therapies in hospitalized HIV and cancer patients are known to induce the poor management of adverse reactions, where local and systemic candidiasis become highly resistant to conventional antifungal therapy. The development of oral candidiasis is triggered by several mechanisms that determine oral epithelium imbalances, resulting in poor local defense and a delayed immune system response. As a result, pathogenic fungi colonies disseminate and form resistant biofilms, promoting serious challenges in initiating a proper therapeutic protocol. Hence, this study of the literature aimed to discuss possibilities and new trends through antifungal therapy for buccal drug administration. A large number of studies explored the antifungal activity of new agents or synergic components that may enhance the effect of classic drugs. It was of significant interest to find connections between smart biomaterials and their activity, to find molecular responses and mechanisms that can conquer the multidrug resistance of fungi strains, and to transpose them into a molecular map. Overall, attention is focused on the nanocolloids domain, nanoparticles, nanocomposite synthesis, and the design of polymeric platforms to satisfy sustained antifungal activity and high biocompatibility with the oral mucosa.

14 February 2024 in Pharmaceutics
Verified
Journal Article
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MTMarina-Theodora Talianu
Marina-Theodora Talianu
Cristina Elena Dinu-PîrvuCristina Elena Dinu-Pîrvu
Cristina Elena Dinu-Pîrvu
Mihaela Violeta GhicaMihaela Violeta Ghica
Mihaela Violeta Ghica
VAValentina Anuta
Valentina Anuta
RPRazvan-Mihai Prisada
Razvan-Mihai Prisada
LACRAMIOARA POPALACRAMIOARA POPA
LACRAMIOARA POPA
This research aimed to develop miconazole-based microemulsions using oleic acid as a natural lipophilic phase and a stabilizer mixture comprising Tween 20 and PEG 400 to solubilize miconazole as an antifungal agent known for its activity in oral candidiasis and to improve its bioavailability. The formulation and preparation process was combined with a mathematical approach using a 23-full factorial plan. Fluid and gel-like microemulsions were obtained and analyzed considering pH, conductivity, and refractive index, followed by extensive analyses focused on droplet size, zeta potential, rheological behavior, and goniometry. In vitro release tests were performed to assess their biopharmaceutical characteristics. Independent variables coded X1-Oleic acid (%, w/w), X2-Tween 20 (%, w/w), and X3-PEG 400 (%, w/w) were analyzed in relationship with three main outputs like mean droplet size, work of adhesion, and diffusion coefficient by combining statistical tools with response surface methodology. The microemulsion containing miconazole base–2%, oleic acid–5%, Tween 20–40%, PEG 400–20%, and water–33% exhibited a mean droplet size of 119.6 nm, a work of adhesion of 71.98 mN/m, a diffusion coefficient of 2.11·10−5 cm2/s, and together with remarked attributes of two gel-like systems formulated with higher oil concentrations, modeled the final optimization step of microemulsions as potential systems for buccal delivery.

12 January 2022 in Pharmaceutics
Verified
Journal Article
Open access
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MAMaria-Cristina Anicescu
Maria-Cristina Anicescu
Cristina Elena Dinu-PîrvuCristina Elena Dinu-Pîrvu
Cristina Elena Dinu-Pîrvu
MTMarina-Theodora Talianu
Marina-Theodora Talianu
Mihaela Violeta GhicaMihaela Violeta Ghica
Mihaela Violeta Ghica
VAValentina Anuta
Valentina Anuta
LACRAMIOARA POPALACRAMIOARA POPA
LACRAMIOARA POPA
The present study brings to attention a method to develop salicylic acid-based oil in water (O/W) microemulsions using a tensioactive system based on Tween 80, lecithin, and propylene glycol (PG), enriched with a vegetable oat oil phase and hyaluronic acid. The systems were physically characterized and the Quality by design approach was applied to optimize the attributes of microemulsions using Box–Behnken modeling, combined with response surface methodology. For this purpose, a 33 fractional factorial design was selected. The effect of independent variables namely X1: Tween 80/PG (%), X2: Lecithin (%), X3: Oil phase (%) was analyzed considering their impact upon the internal structure and evaluated parameters chosen as dependent factors: viscosity, mean droplet size, and work of adhesion. A high viscosity, a low droplet size, an adequate wettability—with a reduced mechanical work—and clarity were considered as desirable for the optimal systems. It was found that the optimal microemulsion which complied with the established conditions was based on: Tween 80/PG 40%, lecithin 0.3%, oat oil 2%, salicylic acid 0.5%, hyaluronic acid 1%, and water 56.2%. The response surface methodology was considered an appropriate tool to explain the impact of formulation factors on the physical properties of microemulsions, offering a complex pattern in the assessment of stability and quality attributes for the optimized formulation.