Nanofibrillated cellulose (NFC) has found extensive potential and existing utilizations across various industries. Nonetheless, a notable constraint of NFC lies in its inherent hydrophilic nature, which restricts its suitability for non-aqueous application. This study aims at synthesising hydrophobic NFC through a two-step surface modification by reacting NFC with tannic acid and amine group. The study also investigated the effect of using various alkylamines on the properties of modified NFC. The hydrophobic NFC was characterized using various analytical techniques namely Thermogravimetric Analysis (TGA), X-Ray Diffraction analysis (XRD), Atomic Force Microscopy (AFM), Fourier Transform Infrared Spectroscopy (FTIR), elemental analysis, and contact angle measurements. The present study also looked into the possible use of modified NFC as a pharmaceutical excipient for the delivery of water insoluble curcumin. The analysis of curcumin binding onto the modified NFC was conducted using UV-Visible spectrophotometry. The findings from the study indicated that the modified NFC effectively bound a substantial quantity of curcumin (80 % - 87 %) and the binding varied for samples of different degree of substitution.
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http://dx.doi.org/10.1016/j.carbpol.2024.122405 | DOI Listing |
Sci Rep
December 2024
School of Computer Science Engineering and Information Systems , Vellore Institute of Technology, Vellore, India.
Our day-to-day lives have become comfortable and sophisticated with many recent technologies. Likewise, today's world has been enhanced by new innovative technologies. Everyone is moving towards smart cities and smart homes.
View Article and Find Full Text PDFBDJ Open
December 2024
Pediatric and Preventive Dentistry, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, India.
Objective: To evaluate the in vitro effects of two commonly used commercial herbal toothpastes (Dabur Meswak and Patanjali Dant Kanti) on the colour stability, surface texture, and microhardness of two commonly used aesthetic restorative materials, i.e., nanofilled composite and resin-modified glass ionomer cement (NFC and RMGIC).
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Chemistry, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, India. Electronic address:
To combat the persistent environmental issues resulting from eutrophication, it is necessary to scavenge excess phosphorous levels from aquatic ecosystems. In response, a cationic adsorbent was prepared by modifying agrowaste-derived natural biomacromolecule; nanofibrillated cellulose (NFC) using cetyltrimethylammonium bromide (CTAB) surfactant. Comprehensive characterization through XRD, FTIR, HR-SEM, SEM-EDX, BET and XPS demonstrated that quaternizing NFC significantly improved its surface chemistry by introducing substantial quaternary ammonium groups.
View Article and Find Full Text PDFJDS Commun
November 2024
Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, H9X 3V9, QC, Canada.
Daily vitamin B (VB) requirements of humans can naturally be fulfilled by animal product consumption, especially products from ruminants because of bacteria dwelling in their rumen. Indeed, only bacteria can synthesize this vitamin. Milk is hence an excellent source of VB.
View Article and Find Full Text PDFSynth Syst Biotechnol
October 2024
Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology and School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China.
transglutaminase (smTG) can be used for site-specific labeling of proteins with chemical groups. Here, we explored the use of modified smTG for the biosynthesis of nanobody-fluorophore conjugates (NFC). smTG catalyzes the conjugation of acyl donors containing glutamine with lysine-containing acceptors, which can lead to non-specific cross-linking.
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