Charged fluorophores-assisted fabrication of metallic structures inside hydrogel by multi-photon photoreduction

Charged fluorophores-assisted fabrication of metallic structures inside hydrogel by multi-photon photoreduction
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通过多光子光还原带电荧光团辅助水凝胶内金属结构的制造

DOI:
10.1117/12.2578247
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发表时间:
2021
期刊:
Proceedings of SPIE
影响因子:
--
通讯作者:
Mitsuhiro Terakawa
Mitsuhiro Terakawa
中科院分区:
--
文献类型:
--
作者:
Manan Machida;Weilu Shen;Hiroaki Onoe;Alexander Heisterkamp;Eric Mazur;Mitsuhiro Terakawa

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我们展示了通过多光子光还原在具有不同电荷荧光团的PEG基水凝胶内制造金微结构。通过向金属离子溶液中加入带阴离子电荷的FITC-葡聚糖或带阳离子电荷的罗丹明110,与在无荧光团的水凝胶中制造的结构相比,制造的金微结构的线宽增加。光漂白可促进金离子的还原,同时促进荧光团的氧化。值得注意的是,用FITC-葡聚糖观察到在焦点以外的位点处的金离子还原的抑制,这可能归因于金离子与FITC-葡聚糖的配位。
We demonstrated the fabrication of gold microstructures inside a PEG-based hydrogel with different charged fluorophores by multi-photon photoreduction. By adding an anionic charged FITC-dextran or a cationic charged Rhodamine110 to the metal ion solution, line width of the fabricated gold microstructures increased compared to that of the structures fabricated in fluorophore-free hydrogel. The photobleaching could enhanced the reduction of gold ions accompanying the oxidation of the fluorophores. Notably, the inhibition of reduction of gold ions at a site other than the focal point was observed with FITC-dextran, which may be attributable to the coordination of gold ions to FITC-dextran.
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发表时间: 2020-08
影响因子: 2.8
作者:
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发表时间: 2006
期刊: SPIE Photonics Europe
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