Photothermal liquid release from arrayed Au nanorod/hydrogel composites for chemical stimulation
Photothermal liquid release from arrayed Au nanorod/hydrogel composites for chemical stimulation
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用于化学刺激的阵列金纳米棒/水凝胶复合材料的光热液体释放
DOI：
10.1088/1361-6439/ac39fa
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发表时间：
2021
影响因子：
2.3
通讯作者：
Rostami Azmand, Hojjat
中科院分区：
文献类型：
--
作者：
Seo, Sang-Woo;Song, Youngsik;Rostami Azmand, Hojjat
利用大孔硅膜中周期性排列的水凝胶柱，实现了液体释放的可控光热驱动。将热响应水凝胶与金（Au）纳米棒混合，并利用近红外（NIR）光的表面等离子体诱导局部加热作为驱动方法。我们采用理论建模，将水凝胶作为多孔粘弹性介质来理解水凝胶的机械和液体传输特性。为了证明使用NIR光的液体释放控制的可行性，我们首先使用其光传输行为来表征硅膜中的Au纳米棒嵌入的水凝胶的温度响应，以确认成功的器件制造。接下来，当脉冲NIR光照射在结构上时，使用荧光素染料溶液的荧光成像来研究从结构的液体释放特性。我们成功地证明了液体的释放可以控制使用远程近红外照明从所提出的结构。考虑到具有高空间分辨率的周期性排列结构，这将具有潜在的光学寻址化学释放系统的前景，这有利于视网膜假体接口。
Controlled photothermal actuation of liquid release is presented using periodically arrayed hydrogel columns in a macroporous silicon membrane. Thermo-responsive hydrogel is mixed with Gold (Au) nanorods, and surface plasmon-induced local heating by near-infrared (NIR) light is utilized as an actuation method. We adopted theoretical modeling, which treats the hydrogel as a poro-viscoelastic medium to understand the mechanical and liquid transport properties of the hydrogel. To demonstrate the feasibility of the liquid release control using NIR light, we first characterized the temperature response of Au nanorod embedded hydrogel in the silicon membrane using its optical transmission behavior to confirm the successful device fabrication. Next, the liquid release characteristics from the structure were studied using fluorescent imaging of fluorescein dye solution while pulsed NIR light was illuminated on the structure. We successfully demonstrate that the liquid release can be controlled using remote NIR illumination from the presented structure. Considering the periodically arrayed configuration with high spatial resolution, this will have a potential prospect for optically-addressable chemical release systems, which benefit retina prosthesis interfaces.
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影响因子：
4.6
作者：
Song, Youngsik;Azmand, Hojjat Rostami;Seo, Sang-Woo
通讯作者：
Seo, Sang-Woo
影响因子：
4
作者：
Haq, Wadood;Dietter, Johannes;Zrenner, Eberhart
通讯作者：
Zrenner, Eberhart
基于微流体的视网膜下化学神经调节光感受器退化视网膜。
影响因子：
4.4
作者：
Corey M. Rountree;J. Troy;L. Saggere
通讯作者：
L. Saggere
开发可单独寻址的聚对二甲苯微管阵列
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
Yuefa Li;H. Tu;R. Iezzi;P. Finlayson;Yong Xu
通讯作者：
Yong Xu
影响因子：
4.4
作者：
Finlayson, Paul G.;Iezzi, Raymond
通讯作者：
Iezzi, Raymond