Study on a series of water-soluble photoinitiators for fabrication of 3D hydrogels by two-photon polymerization

被引：65
作者：
Huang, Xing [1 ,2 ]
Wang, Xiaopu [1 ]
Zhao, Yuxia [1 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, 29 Zhongguancun East Rd, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
来源：
DYES AND PIGMENTS | 2017年 / 141卷
基金：
中国国家自然科学基金;
关键词：
Water-soluble photoinitiator; Two-photon polymerization; Biomaterials; Tissue engineering; MICROFABRICATION; SCAFFOLDS; GELATIN; PHOTOFABRICATION; BIOMATERIALS;
D O I：
10.1016/j.dyepig.2017.02.040
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of water-soluble benzylidene cyclanone dyes Tl-T3 were synthesized. Their photo-physical properties were investigated using UV-Vis spectra, fluorescence spectra and two-photon absorption spectra. The maximum two-photon absorption cross-sections (sigma(2)) of T1-T3 in deionized water were determined as 567 GM, 808 GM and 231 GM. Using TI-T3 as photoinitiators (PIs) directly, 2D and 3D nano patterns based on two-photon crosslinking or polymerization of bovine serum albumin (BSA), water-soluble acrylic ester monomer (SR610) and hyaluronic acid derivative (HAGM) were successfully fabricated, respectively. Much lower threshold energies and wider fabrication windows were obtained in the formulations containing these PIs compared with commercial ones. Furthermore, the cytotoxicity study showed a favorable biocompatibility of these PIs, which indicated T1-T3 would have application prospects in 3D fabrication of biomaterials. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：413 / 419
页数：7
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