Oleoresin of Roxb. ex G. Don (DA) has been traditionally used for local medicinal applications.
View Article and Find Full Text PDFThis study presents the employment of Fourier transform infrared (FTIR) spectroscopy with attenuated total reflection and principal component analysis (PCA) to analyze the stability of a Pickering emulsion stabilized by carboxylated-cellulose nanocrystal (cCNC) comprising sesame oil phases with or without sesamolin. FTIR measurements identified an intermolecular hydrogen bond between the ester group of the triglyceride and the carboxyl group of the cCNC to create the emulsion droplet. The spectral bands from the hydroxyl group vibration (3700-3050 cm), carbonyl (1744 cm), CO groups of the ester triglyceride and cCNC (1160-998 cm) markedly discriminated between stabilized and destabilized emulsions.
View Article and Find Full Text PDFThis work involves a green and simple synthesis of TiO nanoparticles on cellulose under mild conditions without the need for calcination via hydrolysis of titanium oxysulfate (TiOSO). The synthesis conditions, such as sulfuric acid concentration (0-10% wt), temperature (70-90 ℃), and time (4-8 h), focused on precisely controlling the structure of TiO to enhance its photocatalytic effectiveness under visible light. At a lower 2.
View Article and Find Full Text PDFInt J Biol Macromol
January 2024
This study aimed to improve the multifunctional properties (including photocatalysis, stability reusability, self-cleaning, antibacterial effects, and thermal radiation shielding) of cellulose fabrics through incorporation of TiO nanoparticles. To achieve this, anatase TiO nanoparticles were synthesized in situ and deposited onto cotton fabrics through hydrothermal method. The presence of TiO nanoparticles in cellulose fabrics greatly enhanced the photocatalytic efficiency and adsorption range and did not damage the fabric fibers.
View Article and Find Full Text PDFCatalysts played a crucial role in advancing modern human civilization, from ancient times to the industrial revolution. Due to high cost and limited availability of traditional catalysts, there is a need to develop cost-effective, high-activity, and nonprecious metal-based electrocatalysts. Metal-organic frameworks (MOFs) have emerged as an ideal candidate for heterogeneous catalysis due to their physicochemical properties, hybrid inorganic/organic structures, uncoordinated metal sites, and accessible organic sections.
View Article and Find Full Text PDFInt J Biol Macromol
January 2023
Silver nanoparticles (AgNPs)/carboxylated cellulose nanocrystals (Ag-cCNC) from Eucalyptus pulp were prepared using a three-step process. The cCNC were synthesized by oxidation of CNC from Eucalyptus pulp with ammonium persulfate, followed by a hydrothermal reaction to form Ag-cCNC. The Ag-cCNC was then characterized with respect to Ag release, flow behavior, and anticancer activity for potential applications in biomedicine and drug delivery.
View Article and Find Full Text PDFModification of rice starch nanoparticles (SNP) as an emulsifier in Pickering emulsions is reported in this work. The SNP was prepared by HCl hydrolysis with different resident times and subsequently modified via crosslinking by citric acid using various crosslinking times to improve the hydrophobicity of SNP. The modified SNP was used to prepare sunflower oil-in-water Pickering emulsions loaded with curcumin.
View Article and Find Full Text PDFThe cassava starch processing plays an important role in food industries. During starch processing stage, a large amount of cassava starch waste (CSW) which mainly contains lost starch product and solid residue such as cassava bagasse are produced. Starch and cassava bagasse can be hydrolyzed into fermentable sugar such as glucose.
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