Surface Activity of Some Low Molecular Weight Chitosan Derivatives

2013 ◽  
Vol 8 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Khaldoun Al-Sou’oda ◽  
Rasha Abu-Falaha ◽  
Mayyas Al-Remawi
Keyword(s):  
Molecular Weight ◽  
Surface Activity ◽  
Low Molecular Weight ◽  
Chitosan Derivatives ◽  
Low Molecular Weight Chitosan

Searching for synergistic effects of low-molecular weight chitosan derivatives, chitosan and copper nanoparticles for wound healing ointment

2021 ◽  
Vol 12 (3) ◽  
pp. 035016
Author(s):  
Natalya Nikolaevna Glushchenko ◽  
Olga Alexandrovna Bogoslovskaya ◽  
Balzhima Tsyrendorzhievna Shagdarova ◽  
Alla Victorovna Il’ina ◽  
Irina Pavlovna Olkhovskaya ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Wound Healing ◽  
Copper Nanoparticles ◽  
Synergistic Effects ◽  
Low Molecular Weight ◽  
Chitosan Derivatives ◽  
Low Molecular Weight Chitosan

scholarly journals THE INHIBITION OF HUMAN PLATELET AGGREGATION BY A LOW-MOLECULAR WEIGHT CHITOSAN

2018 ◽  
Vol XXIII ◽  
pp. 55-65
Author(s):  
Natalia N. Drozd ◽  
Yulia S. Logvinova ◽  
Balzhima Ts. Shagdarova ◽  
Alla V. Il’ina ◽  
Valery P. Varlamov
Keyword(s):  
Molecular Weight ◽  
Platelet Aggregation ◽  
Positive Charge ◽  
Human Platelet ◽  
Low Molecular Weight ◽  
Chitosan Derivatives ◽  
Human Platelet Aggregation ◽  
Low Molecular Weight Chitosan ◽  
Aggregation Of Platelets

Chitosan derivatives were obtained by chemical (MW of 6 kDa, DD 99% - Ch6/99; MW13 kDa, DD 98% - Ch13/98) and enzymatic (MW of 5 kDa, DD 85% - Ch5/85; MW of 10 kDa, DD 85% - Ch10/85) depolymeri-sation of chitosan with a MW of 334 and 1000 kDa. Chitosan derivatives (almost identical MW pairs and different DD) possessed insignificant an-ticoagulant activity, did not promote human platelet aggregation and re-duced ADP or collagen-induced platelet aggregation. The studied sam-ples at a concentration of 2 mg/ml reduced the aggregation of platelets more than twice induced in 2x10-6M and 1x10-5M concentrations; at weak activation in 2x10-6M, the Ch10/85 sample was the most effective. The Ch6/99 and Ch13/98 samples were 20 times more effective at the inhibi-tion of collagen-induced platelet aggregation than the Ch10/85 sample. The latter can be explained by the greater value of positive charge (DD) and polydispersity (Mw/Mn) of chitosan samples obtained by chemical de-polymerisation.

Preparation of low-molecular-weight chitosan by enzymatic hydro-lysis for use in peliculture

2021 ◽  
pp. 31-33
Author(s):  
Элана Игоревна Ковалева ◽  
Марина Алексеевна Фролова ◽  
Алексей Иванович Албулов ◽  
Валерий Петрович Варламов ◽  
Анатолий Константинович Елисеев
Keyword(s):  
Molecular Weight ◽  
Enzymatic Hydrolysis ◽  
Environmental Factors ◽  
Low Molecular Weight ◽  
Technological Parameters ◽  
Low Molecular Weight Chitosan

Хитозан и его производные обладают множеством свойств, которые позволяют применять его в пчеловодстве. Он повышает устойчивость организма пчел к неблагоприятным факторам внешней среды и к возбудителям различных заболеваний. В результате проведенных исследований разработаны технологические параметры получения низкомолекулярного хитозана методом ферментативного гидролиза. Chitosan and its derivatives have many properties that allow them to be used in beekeeping. It increases the resistance of the bee organism to adverse environmental factors and to pathogens of various diseases. As a result of the conducted research, the technological parameters for the production of low-molecular-weight chitosan by enzymatic hydrolysis were developed.

Liposome coated with low molecular weight chitosan and its potential use in ocular drug delivery

2009 ◽  
Vol 379 (1) ◽  
pp. 131-138 ◽  
Author(s):  
Ning Li ◽  
Chunyang Zhuang ◽  
Mi Wang ◽  
Xiyang Sun ◽  
Shufang Nie ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Molecular Weight ◽  
Ocular Drug Delivery ◽  
Low Molecular Weight ◽  
Low Molecular Weight Chitosan ◽  
Potential Use

The use of enzymatic preparation for the production of low molecular-weight chitosan from the king crab hepatopancrease

2009 ◽  
Vol 45 (4) ◽  
pp. 374-379 ◽  
Author(s):  
A. V. Ilyina ◽  
D. S. Zagorskaya ◽  
A. N. Levov ◽  
A. I. Albulov ◽  
N. P. Kovacheva ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight ◽  
Enzymatic Preparation ◽  
King Crab ◽  
Low Molecular Weight Chitosan
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