Results 221 to 230 of about 65,504 (254)
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Gold sorption on chitosan derivatives
Hydrometallurgy, 2003Four derivatives of chitosan have been prepared by cross-linking and by grafting of sulfur compounds. Sorption isotherms were performed at different pHs in order to optimize the pH conditions at fixed chloride concentration. Sorption isotherms were correlated with gold speciation in solution.
Martha Ly Arrascue +3 more
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Electric resistance of chitosan derivatives
Carbohydrate Polymers, 1999Abstract Direct compression of partially deacetylated chitin (DAC) and its derivatives gave tablets, which were found to be very convenient for the simple and swift estimation of the specific resistance under the various temperature and moisture conditions.
Kenji Suzuki +2 more
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Mercury sorption on a thiocarbamoyl derivative of chitosan
Journal of Hazardous Materials, 2009The grafting of thiourea on chitosan backbone allows synthesizing a thiocarbamoyl derivative that was very efficient for mercury sorption in acidic solutions. Though the sorption capacity is not increased compared to raw chitosan in near neutral solutions, this modification allowed maintaining high sorption capacity (close to 2.3 mmol Hg g(-1)) at pH 2.
J. Roussy +6 more
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Chitosan Derivatives as Biosorbents for Basic Dyes
Langmuir, 2007The scope of this study was to prepare and evaluate chitosan derivatives as biosorbents for basic dyes. This was achieved by grafting poly (acrylic acid) and poly (acrylamide) through persulfate induced free radical initiated polymerization processes and covalent cross-linking of the prepared materials.
Dimitrios N. Bikiaris +3 more
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Antioxidant Effects of Chitin, Chitosan, and Their Derivatives
2014Chitin, chitosan, and their derivatives are considered to promote diverse activities, including antioxidant, antihypertensive, anti-inflammatory, anticoagulant, antitumor and anticancer, antimicrobial, hypocholesterolemic, and antidiabetic effects, one of the most crucial of which is the antioxidant effect.
Dai-Hung Ngo, Se-Kwon Kim
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Naturally Occurring Chitosan and Chitosan Derivatives: A Review
Current Drug Therapy, 2011Gunjan B. Joshi +3 more
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Characterization and Solution Properties of Chitosan and Chitosan Derivatives
2020Rinaudo, M. +2 more
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A high-performance hydroxide exchange membrane enabled by Cu2+-crosslinked chitosan
Nature Nanotechnology, 2022Mei-Ling Wu, Yun Zhao, Chunpeng Yang
exaly
Chitin and chitosan: Properties and applications
Progress in Polymer Science, 2006Marguerite Rinaudo
exaly