Results 121 to 130 of about 35,049 (259)

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

Advanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao, Mei Li, Mengjiao Fan, Chuanhuan Liu, Jie Jiang, Jia Song, Yingzhu Liu   +6 more
wiley   +1 more source

Injectable Hydrogel with Rapid Coagulation, Low Swelling, and High Burst Pressure Tolerance Properties for Long‐Term Management of Bleeding Wound

Advanced Science, EarlyView.
An injectable PACmC hydrogel with “rigid island‐flexible chain” architecture is developed, featuring low swelling (49.2% within 7 d), strong wet adhesion (46.5 kPa), and high burst pressure (701 mm Hg), which can achieve rapid hemostasis and long‐term sealing in rabbit and porcine models of hepatic and splenic hemorrhage.
Yang Ouyang, Wenfeng Qiu, Weiwen Liang, Xin Zhang, Weijie Liu, Zixin Chen, Yifei Li, Hui Wang, Youchen Tang, Min Li, Rongkang Huang, Zijian Chen, Binghua Ma   +12 more
wiley   +1 more source

Antibacterial activity of water soluble chitosan derivatives prepared by Maillard reaction

, 2010
[[abstract]]The antibacterial activity of water-soluble chitosan derivatives prepared by Maillard reactions against Staphylococcus aureus, Listeria monocytogenes, Bacillus cereus, Escherichia coli, Shigella dysenteriae, and Salmonella typhimurium was ...
Ying-Chien Chung;Jan-Ying Yeh;Cheng-Fang Tsai
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ORAC of chitosan and its derivatives

, 2012
Chitosan and chitosan derivatives are receiving a lot of attention as materials of natural origin which possess radical scavengers, antioxidants and antimicrobial properties, especially in food applications.
Casettari L., Gennari L., CASETTARI, LUCA, NINFALI, PAOLINO, Ninfali P., CASTAGNINO, ENZO, L. Gennari, Gennari, Lorenzo, Castagnino E., ANGELINO, DONATO, Angelino D.   +10 more
core   +1 more source

Dual Physiological Barriers Bypassed by a Silk‐Based Supramolecular Protein Delivery Platform for Neuroinflammation Mitigation in Alzheimer's Disease

Advanced Science, EarlyView.
A supramolecular nanocomplex based on phenolic‐modified silk sericin is developed to deliver antioxidant enzymes across the blood–brain barrier and escape lysosomal degradation. This dual‐barrier‐crossing system reduces neuroinflammation and improves cognitive performance in Alzheimer's disease mouse model, offering a promising strategy for protein ...
Doudou Hu, Tiandong Li, Jian He, Yujian Jiang, Yeyuan Wang, Jingchen Sun   +5 more
wiley   +1 more source

New chitosan-imine derivatives: from green chemistry to removal of heavy metals from water

Revista Facultad de Ingeniería Universidad de Antioquia, 2018
Three novel imine-chitosan derivatives were synthesized by condensation of the amino terminals of chitosan and 4-bromomethyl-2-hydroxybenzaldehyde A1, 4-formyl-2-hydroxybenzoic acid A2, and (E)-6-((2-(pyridin-2-yl)hydrazono)methyl)picolinaldehyde A3 ...
Vivian Lizeth Triana-Guzmán, Yury Ruiz-Cruz, Elkin Libardo Romero-Peñaloza, Héctor Fabio Zuluaga-Corrales, Manuel Noé Chaur-Valencia   +4 more
doaj  

Fabrication and characterization of unique sustain modified chitosan nanoparticles for biomedical applications

Scientific Reports
Chitosan (CS) is a biopolymer that offers a wide range in biomedical applications due to its biocompatibility, biodegradability, low toxicity and antimicrobial activity.
Marwa ElS. Ahmed, Mansoura I. Mohamed, Hanaa Y. Ahmed, Mahmoud M. Elaasser, Nadia G. Kandile   +4 more
doaj   +1 more source

Hydrophilic Chitosan Derivatives: Synthesis and Applications. [PDF]

Chemistry, 2022
Cohen E, Poverenov E.
europepmc   +1 more source

Tailoring Multifunctional Carbon Dots via Precursor Stoichiometry: Switching Between Solid‐State Fluorescence and Broadband Absorption Through Aggregation Control

Advanced Science, EarlyView.
Precursor stoichiometry programs the surface chemistry of carbon dots, directing their self‐assembly into distinct aggregation modes. Aldehyde‐enriched surfaces form ordered, hydrogen‐bonded assemblies that enable bright red solid‐state fluorescence, whereas amine‐rich surfaces promote compact π–π stacked aggregates with broadband visible‐light ...
Gaixia Yang, Hao Sun, Defa Hou, Fulin Yang, Yuan Zou, Bei Zhou, Lanxiang Liu, Xu Lin, Guanben Du   +8 more
wiley   +1 more source

Atividade de quitosanas e da fração polissacarídica de babosa para o controle da mancha bacteriana (Xanthomonas gardneri) e pinta preta (Alternaria solani) em plantas de tomate [PDF]

, 2010
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Biológicas, Programa de Pós-Graduação em Biotecnologia, Florianópolis, 2010O polissacarídeo quitosana tem demonstrado potencial para o controle de doenças em plantas, e a
Coqueiro, Danila Souza Oliveira
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