Fabrication of microstructured materials based on chitosan and D,L-lactide copolymers using laser-induced microstereolithography

被引：6

作者：

Demina, T. S. ^{[1
]}

Bardakova, K. N. ^{[2
]}

Svidchenko, E. A. ^{[3
]}

Minaev, N. V. ^{[2
]}

Pudovkina, G. I. ^{[2
]}

Novikov, M. M. ^{[2
]}

Butnaru, D. V. ^{[1
]}

Surin, N. M. ^{[3
]}

Akopova, T. A. ^{[3
]}

Bagratashvili, V. N. ^{[2
]}

Zelenetskii, A. N. ^{[3
]}

Timashev, P. S. ^{[2
]}

机构：

[1] Sechenov First Moscow State Med Univ, Minist Hlth Russian Federat, Ul Bolshaya Pirogovskaya 2-4, Moscow 119991, Russia

[2] Russian Acad Sci, Inst Laser & Informat Technol, Ul Pionerskaya 2, Moscow 142092, Russia

[3] Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Ul Profsoyuznaya 70, Moscow 117393, Russia

来源：

HIGH ENERGY CHEMISTRY | 2016年 / 50卷 / 05期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

laser stereolithography; chitosan; two-photon polymerization; graft copolymers; lactide; regenerative medicine; 2-PHOTON POLYMERIZATION; STEREOLITHOGRAPHY; DERIVATIVES; CARTILAGE; SCAFFOLDS; BONE;

D O I：

10.1134/S0018143916050088

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The graft copolymers of chitosan and oligo(D,L-lactide) obtained by solid-phase synthesis have been used as the basis of photosensitive compositions for the fabrication of three-dimensional microstructures by laser-induced stereolithography. The electronic absorption spectra of the copolymers are close to the sum of the spectra of native chitosan and polylactide, which has been chosen as a model of grafted oligolactide chains. The fundamental absorption bands of the copolymers lie in a range to 500 nm, and their contribution to the absorption intensity of a photosensitive composition based on the copolymers at second harmonic laser frequency is insignificant. Depending on the macromolecular characteristics of the copolymers, the three-dimensional crosslinking of photosensitive compositions on their basis in the course of microstructuring occurs with different efficiency.

引用

页码：389 / 394

页数：6

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