[Effect of the nature of the surface of disperse silica on its interaction with the reproductive cells and seminal plasma of cattle].
The interaction of various disperse silica of I, II, III kind possessing various structure of surface groups (-OH; -O-CH2-CH2-O-CH2-CH2OH; -O-CH2-CH2-NH2 respectively) was investigated with some above membrane matrix polymers of bovine reproductive cells and seminal plasma (namely the surface proteins and carbohydrate polymers containing the N-acetyl-neuraminic acid (NANA) as terminal residue). Protein binding was preferentially observed for silica surface modified by aminoethoxy--and ethylene glycol groups and depended on concentration of silica in the mixture. It was found that biopolymers containing carbohydrate groups had larger affinity to I than to II or III. The binding value of I-III was 12-16% with respect to plasma proteins. Silicas I and II with -OH-groups on the surface absorb 17-21% N-ANA-containing polymers of bovine seminal plasma.
Galagan
N P
NP
Bogomaz
V I
VI
Isarov
A V
AV
Chuĭko
A A
AA
D000818:Animals; D001704:Biopolymers; D002241:Carbohydrates / Q000737:chemistry; D002417:Cattle; D008297:Male; D011485:Protein Binding; D012661:Semen / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013094:Spermatozoa / Q000737:chemistry*; D013499:Surface Properties
D001704:Biopolymers; D002241:Carbohydrates; D012822:Silicon Dioxide
Vliianie prirody poverkhnosti dispersnogo kremnezema na ego vzaimodeĭstvie s reproduktivnoĭ kletkoĭ i semennoĭ plazmoĭ krupnogo rogatogo skota.