http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kang, Inn-Kyu,Ito, Yoshihiro,Sisido, Masahiko,Imanishi, Yukio The Society of Polymer Science, Japan 1987 Polymer journal Vol.19 No.12
<P>A-B-A-type block copolymers were prepared by the polymerization of γ-benzyl <SMALL>L</SMALL>-glutamate NCA (A segment) using polyoxypropylene (POP, B segment) with amino groups at both ends of a chain as an initiator. Thrombus formation on the block copolymer films was minimum on a block copolymer containing a POP segment of 50 mol%. It was found that on the block copolymer, denaturation of plasma proteins such as albumin and fibrinogen upon adsorption was sufficiently low not to activate adhered platelets, leading to a low degree of thrombogenesis. The oxygen permeation coefficients (<I>P</I>) of block copolymer films in water were about twice as large as that of poly(γ-benzyl <SMALL>L</SMALL>-glutamate) (PBLG) film. The increased permeation was ascribed to an increased diffusion coefficient (<I>D</I>) of dissolved oxygen through the block copolymer films. Arrhenius plots of <I>P</I> and <I>D</I> showed a break point in the temperature range of 20–30°C. At lower temperatures than the break temperature, the activation energy for oxygen permeation of the block copolymer film was lower than that of PBLG film.</P>
Glucose 의 Rodox 반응에 의한 인슐린 방출 Device 의 설계와 합성
정동준,심정섭 ( Dong June Chung,Yoshihiro Ito,Yukio Imanishi,Jyong Sup Shim ) 한국공업화학회 1990 공업화학 Vol.1 No.2
New insulin-releasing system on the basis of the redox reaction of glucose was synthesized by immobilizing insulin through a disulfide bond(5, 5`-dithiobis(2-nitrobenzoic acid) to polymer membrane(poly(methyl methacrylate)) and enzyme(glucose oxidase). The disulfide bonds were cleaved upon oxidation of glucose with glucose dehydrogenase and glucose oxidase, releasing insulin from the membrane and enzyme. Sensitivity to glucose concentration was enhanced by coimmobilization of enzyme cofactors(nicotinamide adenin dinucleotide and flavin adenin dinucleotide) acting as electron mediator(for the membrane device), and further enhanced by direct immobilization of insulin on glucose oxidase(for the protein device). Both systems were specific to glucose, and the released insulin was indistinguishable from native insulin. The biological activity of released insulin was 81% of native insulin.