生物应用中液滴的三维光热操作

IF 6.7 1区 化学 Q1 CHEMISTRY, ANALYTICAL
Yijing Yang, Ruilin Wang, Qianchen Rui, Xiao Yan, Xun Zhu, Dingding Ye, Yang Yang, Hong Wang, Rong Chen* and Qiang Liao, 
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引用次数: 0

摘要

通过局部光热效应对低温下的水滴进行三维光处理是一个基本挑战。在此,我们提出了一种新的光策略,利用532 nm的激光束对不混相油中的水滴进行三维操纵,其中碳粉的光热转换材料分散在油中以吸收532 nm的激光能量。局部光热效应在油-气和水-油界面处产生温度梯度,导致热毛细流动。通过控制激光束位置、移动速度和照射方式,水滴可以稳定悬浮在油中,并以复杂的路径自由移动,实现对低温液滴的灵活、精确的三维操控。值得注意的是,这种策略对生物应用的适应性是通过在保持其功能的同时操纵多种生物液滴来证明的。此外,液滴的温度和内部流动可以很好地控制,就像一个“微振荡器”,促进细胞培养。这项工作代表了一种创新的水滴三维光操纵策略,它在各种应用中都有前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

3D Photothermal Manipulation of Droplet for Biological Applications

3D Photothermal Manipulation of Droplet for Biological Applications

3D Photothermal Manipulation of Droplet for Biological Applications

3D light manipulation of water droplets at low temperatures via a local photothermal effect presents a fundamental challenge. Herein, we propose a novel light strategy for 3D manipulation of a water droplet in an immiscible oil phase using a 532 nm laser beam in which the photothermal conversion materials of carbon powders are dispersed in the oil for absorbing the 532 nm laser energy. The local photothermal effect creates temperature gradients at the oil–air and water–oil interfaces, leading to the thermocapillary flow. By controlling the laser beam position, moving speed, and irradiation mode, a water droplet can stably suspend in the oil and freely move with a complex path, presenting flexible and precise 3D manipulation of low-temperature droplets. Remarkably, the adaptability of this strategy to biological applications is demonstrated by the manipulation of diverse biodroplets while preserving their functionality. Moreover, the droplet temperature and internal flow can be well controlled, behaving like a “micro-shaker” for enhancing cell cultivation. This work represents an innovative strategy for 3D light manipulation of water droplets, which holds promise in various applications.

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来源期刊
Analytical Chemistry
Analytical Chemistry 化学-分析化学
CiteScore
12.10
自引率
12.20%
发文量
1949
审稿时长
1.4 months
期刊介绍: Analytical Chemistry, a peer-reviewed research journal, focuses on disseminating new and original knowledge across all branches of analytical chemistry. Fundamental articles may explore general principles of chemical measurement science and need not directly address existing or potential analytical methodology. They can be entirely theoretical or report experimental results. Contributions may cover various phases of analytical operations, including sampling, bioanalysis, electrochemistry, mass spectrometry, microscale and nanoscale systems, environmental analysis, separations, spectroscopy, chemical reactions and selectivity, instrumentation, imaging, surface analysis, and data processing. Papers discussing known analytical methods should present a significant, original application of the method, a notable improvement, or results on an important analyte.
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