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Purification and characterization of chitinases from the nematophagous fungi Verticillium chlamydosporium and V. suchlasporium.
- V. Tikhonov, L. V. Lopez-Llorca, J. Salinas, H. Jansson
- BiologyFungal genetics and biology : FG & B
- 1 February 2002
Culture filtrates of the nematophagous fungi Verticillium chlamydosporium and V. suchlasporium growing on colloidal chitin showed increasing chitinolytic activity and production of two main proteins, and a single endochitinase (CHI43) with optimum pH range of 5.2-5.7 was found.
Bactericidal and antifungal activities of a low molecular weight chitosan and its N-/2(3)-(dodec-2-enyl)succinoyl/-derivatives
Physicochemical properties of low molecular weight alkylated chitosans: a new class of potential nonviral vectors for gene delivery.
Comparative evaluation of antimicrobial activity of oligochitosans against Klebsiella pneumoniae
- S. Kulikov, V. Tikhonov, E. Bezrodnykh, S. Lopatin, V. Varlamov
- Materials Science, BiologyRussian Journal of Bioorganic Chemistry
- 22 January 2015
The results showed that the antibacterial activity of chitosan against Klebsiella pneumoniae was closely associated with its polycationic nature, and depended on the degree of protonation of the chitOSan amino groups, which, in turn was the function of the degrees of polymerization and the pH values of the medium.
Hydrophobically modified low molecular weight chitosans as efficient and nontoxic gene delivery vectors
Low molecular weight chitosans grafted at 3 and 18 mol% with N‐/2(3)‐(dodec‐2‐enyl)succinoyl groups (HM‐LMW‐ch) that exhibit surfactant‐like properties are used for gene delivery.
Molecular weight and pH aspects of the efficacy of oligochitosan against methicillin-resistant Staphylococcus aureus (MRSA).
Anticoagulant activity of low-molecular-weight sulfated derivatives of galactomannan from Cyamopsis tetragonoloba (L.) seeds
- N. M. Mestechkina, V. Shcherbukhin, V. Tikhonov
- BiologyApplied Biochemistry and Microbiology
- 1 November 2007
Biospecific electrophoresis allowed us to detect the ability of galactomannan sulfates to form complexes with protamine sulfate, a classic antidote to heparin.
Amphiphilic N-[2(3)-(dodec-2'-en-1'-yl)succinoyl]chitosan : Synthesis and properties
Enzymic preparation of acid-free-water-soluble chitosan