The fabrics coated with TiO2 photocatalyst and fluoropolymer exhibit good water-repellent and antimicrobial properties. The coated fabrics can be used in the fabrication of smart gowns and scrub suits as protective clothing for medical staff.
Porous hydroxyapatite (HA) was prepared by a chemical reaction between eggshell and phosphoric acid mixed with a foaming agent. The mineral was composited with collagen via a fermentation process conducted with biocomposite materials of Acetobacter xylinum eggshell membranes, extraction and freeze-drying of Oreochromis niloticus, and commercial-grade collagen. Results of physical-mechanical-thermal properties of the biocomposite materials yielded them as potential candidates for tissue engineering or scaffolding, drug delivery through the body, as well as tissue regeneration. An ideal sample was discovered as HA and collagen encoded with 64HA-1NaHCO3-500 in collagen suspension, prepared from the extraction of eggshell membrane by A. xylinum, together with extraction and freeze-drying of O. niloticus. The received compressive strength of 64HA-1NaHCO3-500 in eggshell and fish skin collagen was 1.30 ± 0.02 and 1.71 ± 0.02 MPa, respectively. Both biocomposite samples served as positive thermal shock resistance absorbers with significantly strong SEM adhesion microstructures of collagen fibers within the porous HA matrices.
Porous hydroxyapatite (HA) was prepared by a chemical reaction between eggshell and phosphoric acid mixed with a foaming agent. Hydroxyapatite was composited with collagen prepared from a fermentation process of Acetobacter xylinum with eggshell membranes, extraction process of Oreochromis niloticus fish skin, and commercial‐grade collagen. Results of physical‐mechanical‐thermal properties of the bio composite materials yielded them as potential candidates for bone tissue engineering, drug delivery through the body, as well as tissue regeneration. The porous hydroxyapatite added foaming agent namely 64HA‐1NaHCO3‐500 and 64HA‐1NaHCO3‐600 having pore size and pore volume suitable for good adhering of collagen fiber types prepared from the fermentation process of Acetobacter xylinum of eggshell membrane and freeze‐drying process of Oreochromis niloticus. Because after reinforcing with collagen gave the highest compressive strength and three‐point bending strength values higher than HA samples without collagen three to five magnitudes. Furthermore, both bio composite samples served as positive thermal shock absorbers with significantly strong scanning electron microscope adhesion microstructures of collagen fibers within the porous HA matrices.
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