In this work, BiS nanoflowers were in situ anchored on the surface of TiC via a hydrothermal process to obtain MXene-supported TiC/BiS nanocomposite, then incorporated inside in sodium alginate polymer to prepared hydrogel materials (TiC/BiS@SA-H) which outperforms and have an excellent capability for the removal of pollutants like disinfected byproducts. The synthesized hydrogel material TiC/BiS@SA-H may be utilized for a variety of functional materials in environmental applications. Furthermore, the TiC/BiS@SA-H was characterized by SEM, EDX, XRD, BET, AFM, FTIR, Zeta potential, XPS, Raman and TGA. Remarkably, TiC/BiS@SA-H hydrogel 0.007 cm g, 159.5 nm and 0.0017 cm g, 160.5 nm materials exhibited the highest average pore diameter. The research focused on evaluating the adsorption capability of TiC/BiS@SA-H hydrogel materials for 2,6-dibromo-4-nitrophenol (DBNP), 2,4,6-triiodophenol (TIP), 2,4,6-Trichlorophenol (TCP) and 2,6-dichloro-4-nitrophenol (DCNP). The findings indicated that the material exhibited the eradication efficiency of about 662, 657, 647 and 617 mg/g from DBNP, TIP, TCP and DCNP respectively. Several adsorption isotherms were extensively examined, encompassing the Temkin, Langmuir and Freundlich models, alongside pseudo-first and second-order models. The Langmuir and pseudo-second-order models showed the highest degree of consistency with the observed data. Concerning regeneration and reusability, the materials demonstrated easy regeneration and effective recyclability over the course of 10 cycles. The notable adsorption capacity, coupled with the innovative combination of TiC/BiS and polymer hydrogel, along with its recyclability, positions our material TiC/BiS@SA-H as a highly prospective competitors for wastewater treatment and other critical areas in water research.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.135486 | DOI Listing |
Food Chem
December 2024
Molecular Nutrition Branch, National Engineering Research Center of Rice and By-product Deep Processing/College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China. Electronic address:
Although rice bran active peptide (RBAP) has potent antioxidant properties, its practical applications have been limited by its low bioavailability. In this study, we hypothesized that pH-responsive hydrogels prepared from the ionic gelation between chitosan and alginate could be a promising delivery system of short-chain peptides, like RBAP, for protecting them from chemical degradation during digestion and improving their functionality. The hydrogel beads retained RBAP in the gastric environment due to strong interactions between two biopolymers and RBAP, followed by a sustained release of more than 70 % peptide in the intestinal condition, thus improving its gastrointestinal stability.
View Article and Find Full Text PDFFront Biosci (Elite Ed)
October 2024
Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 1983969411 Tehran, Iran.
Background: Regenerative endodontics requires an innovative delivery system to release antibiotics/growth factors in a sequential trend. This study focuses on developing/characterizing a thermoresponsive core-shell hydrogel designed for targeted drug delivery in endodontics.
Methods: The core-shell chitosan-alginate microparticles were prepared by electrospraying to deliver bone morphogenic protein-2 for 14 days and transforming growth factor-beta 1 (TGF-β1) for 7-14 days.
Int J Nanomedicine
December 2024
Department of Pharmaceutical Engineering, Dankook University, Cheonan, South Korea.
Purpose: This study aimed to develop a solid self-nanoemulsifying drug delivery system (SNEDDS) and surface-coated microspheres to improve the oral bioavailability of niclosamide.
Methods: A solubility screening study showed that liquid SNEDDS, prepared using an optimized volume ratio of corn oil, Cremophor RH40, and Tween 80 (20:24:56), formed nanoemulsions with the smallest droplet size. Niclosamide was incorporated into this liquid SNEDDS and spray-dried with calcium silicate to produce solid SNEDDS.
Biomacromolecules
December 2024
Department of Chemical Engineering, University of Patras, Patras 26504, Greece.
We report on 3D-printable polymer networks based on the combination of modified alginate-based polymer blends; two alginate polymers were prepared, namely, a thermoresponsive polymer grafted with P(NIPAM--NtBAM)-NH copolymer chains and a second polymer modified with diol/pH-sensitive 3-aminophenylboronic acid. The gelation properties were determined by the hydrophobic association of the thermosensitive chains and the formation of boronate esters. At a mixing ratio of 70/30 wt % of the thermo/diol-responsive polymers, the semi-interpenetrating network exhibited an optimum storage modulus ranging from ca.
View Article and Find Full Text PDFEnviron Pollut
December 2024
Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China. Electronic address:
The proliferation of weeds, pests, and plant diseases in crop cultivation has driven the increased application of herbicide lactofen, insecticide acetamiprid, and fungicide carbendazim, contributing to environmental pollution. Microorganisms are requently employed to remove pesticide residues from the environment. However, Liquid bacterial agents encounter difficulties in transportation and preservation during application and the current immobilized bacterial agents have a single degradation function.
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