The fabrication of bio-composite-derived bovine amniotic membrane (BAM) with hydroxyapatite (HAp) is an approach to combining organic and inorganic bio-material to improve the properties of both materials. This research aims to combine, fabricate and characterise the bio-composite of BAM–HA. The combination of bio-composite is made from BAM and HAp in a ratio of 30:70, 35:65, and 40:60. Dried BAM is immersed in saline and then blended until it forms an amniotic slurry with a jelly-like consistency. At this stage, HAp is added so that it can bind to BAM. After the mixture is homogeneous, the freeze-drying process is carried out. After fabrication, all the bio-composites were characterised using Fourier transform infrared spectrometry (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and porosity analysis, and biological activity was conducted using fibroblasts. The bio-composite has functional groups of amides I, II, III, A, B, OH, CO₃²⁻ and PO₄³⁻ according to the results of the FTIR. The XRD analysis showed the presence of HAP crystals. This functional group and the crystal HAP indicate that these two materials are bound. An SEM examination revealed a variety of porous patterns on the surface area. The bio-composite with BAM and HAp at a ratio of 35:65 has a higher mean pore size of 155.625 µm with mean porosity of 89.23% and can maintain the fibroblast viability of 95.14%. In conclusion, the study successfully combined both bio-materials BAM and HAp, which have potential synergistic effects on soft and hard tissue regeneration. The ratio of 35:65 showed good characteristics and was non-toxic.

Ridge preservation is an important technique for maintaining the dimensions of the alveolar bone following tooth extraction, which is crucial for successful tooth rehabilitation. The combination of bovine amniotic membrane and hydroxyapatite has shown promise as a scaffold material containing growth factors that can stimulate osteogenic‐related factors such as bone morphogenetic protein 2 (BMP2), Runt‐related transcription factor 2 (RUNX2), and osteocalcin. This stimulation leads to collagen production and osteoblast proliferation, resulting in new bone formation. In this study, bovine amniotic membrane‐hydroxyapatite (BAM‐HA) composites were prepared using three different ratios of bovine amniotic membrane and hydroxyapatite (2 : 3, 3 : 7, 7 : 13). Thirty Sprague–Dawley rats had their first incisors extracted, and different types of BAM‐HA were applied for ridge preservation. The control group received no treatment, while the positive control group was given xenograft. After 14 and 28 days, the animals were sacrificed, and immunohistochemical analysis was performed to evaluate the expression of BMP2, RUNX2, and osteocalcin. Additionally, a histological examination was conducted to analyse collagen thickness and osteoblast cell proliferation. The results demonstrated that the application of BAM‐HA significantly increased collagen density, osteoblast cell proliferation, and the expression of BMP2, RUNX2, and osteoclacin compared to the control group (p < 0.05) on both days 14 and 28. Furthermore, increasing the hydroxyapatite content in the composite was found to enhance collagen thickness, osteoblast cell proliferation, and the expression of osteogenic‐related factors. These preliminary findings suggest that the combination of BAM‐HA can be used for ridge preservation to prevent further bone resorption following tooth extraction.

Introduction: Tooth extraction can result in loss of alveolar bone. The application of biomaterials Bovine Amniotic Membrane (BAM) that containing growth factors and collagen is expected to play a role in socket preservation. This study aimed to observe the effect of BAM application on the growth of osteoblasts, osteocytes, and collagen in histological preparate of the alveolar bone socket of Sprague Dawley rats (SD). Methods: 16 male SD rats were used in this group. SD rats were extracted on the mandible central incisivus. Afterward, it was divided into two groups, specifically the control group (without treatment) and the treatment group (BAM application). After extraction, the treatment group was applied with BAM with a size of 1.5 mm x 10 mm in socket alveolar bone. On the 14th and 28th day, the rats were euthanized and the alveolar bone socket of mandibular tissue was taken and stained with Hematoxylin Eosin (HE) and Masson Trichrome (MT). Results: The results of all groups showed that the number of osteoblasts and collagen thickness was higher on day 14th compared to day 28th, while osteocytes continued to increase from day 14th to 28th. The thickness of collagen, osteoblasts, and osteocytes in groups with BAM application was higher than without application. Statistical results showed that there were significant differences between groups (p<0.05). Conclusion: The application of BAM can act as material preservation socket. This biomaterial can accelerate recovery by increasing collagen thickness, osteoblasts, and osteocytes.

Vertical bone defects can result in alveolar bone resorption, which may be addressed using composite grafts. A combination of demineralized bone matrix (DBM) and calcium hydroxide (Ca(OH)₂) has potential as a bone substitute due to its biological and structural properties. This study aimed to identify the optimal DBM–Ca(OH)₂ ratio by evaluating their physicochemical properties relevant to bone regeneration. DBM gel and Ca(OH)₂ powder were combined at ratios of 1:1, 2:1, 3:1, and 4:1. The mixtures were freeze-dried, ground, and sieved to create granules. The composites were analyzed in terms of their structural and chemical characteristics, including crystallinity, calcium ion release, functional group composition, particle size, surface morphology, and elemental distribution. Increasing the proportion of DBM reduced crystallinity and calcium ion release while influencing particle size. Among all groups, the 2:1 composite demonstrated the most balanced properties: moderate crystallinity, relatively high calcium release, and favorable particle size. Chemical analyses confirmed the presence and interaction of both organic and inorganic components, while elemental mapping showed a uniform distribution of the key elements essential for bone formation. The DBM–Ca(OH)₂ composite at a 2:1 ratio has the most promising physicochemical profile, making it a strong candidate for bone graft applications. However, a limitation of this study is the absence of biological testing. Future research should investigate the in vitro and in vivo performance of this composite in bone regeneration.

Objective: This research aims to analyze the characteristics of a BAM-HA biocomposite with ratios of 4:1 and 4:2. Methods: This research is an in vitro laboratory experiment that starts by grinding fresh BAM to produce amnion slurry and then, adding HA powder to the slurry and carrying out freeze-drying on the slurry. Fourier transform infrared spectroscopy (FTIR) and Scanning electron microscope-Energy dispersive X-ray (SEM-EDX) tests are used to analyze the characteristics of the BAM-HA biocomposite. Results: The FTIR test results showed that the BAM-HA biocomposite had amide functional groups I, II, III, A, B, OH, CO32-, and PO43-. SEM test results showed revealed different types of pores on the surface of the biocomposite with ratios of 4:1 and 4:2. The elements C, O, Na, Mg, Si, P, CL, Ca, and Nb were found in the BAM-HA biocomposite following testing by SEM-EDX. Conclusion: Based on the research results, this research has succeeded in combining BAM-HA. The ratio BAM-HA 4:2 has the potential as a scaffold for alveolar bone tissue.

The lemongrass plant (Cymbopogon citratus) in Indonesia has great potential as a natural ingredient for medicines because it contains various compounds such as neral, citral, geranial acetate, flavonoids, and tannins. Previous research has demonstrated various pharmacological activities of kitchen lemongrass leaves, including antibacterial, antifungal, and anti-inflammatory properties. Encapsulation technology in the form of chitosan-NaTPP nanoparticles is used to maintain the activity of kitchen lemongrass leaf compounds. This research aims to determine the physical characteristics of the encapsulation of kitchen lemongrass leaf extract with several comparisons of chitosan and NaTPP by testing PSA (particle size analysis test), FTIR (functional group analysis test), viscosity, and stability, including pH and turbidity tests. Encapsulation with a 1:1 ratio of chitosan and NaTPP has a particle size of 524 nm and a PdI value of 0.481, classified as monodisperse (PdI <0.7). The pH value ranges from 6.46 to 7.30, and the viscosity value was 2.134–2.169 cP, which is still within mouthwash standards. The turbidity test showed stable encapsulation results. Therefore, encapsulation with a 1:1 ratio of chitosan and NaTPP is the most optimal choice and has potential for developing the therapeutic effect of mouthwash.