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In Situ H2O Meter by Visualization in Hydrogels.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-04-14 , DOI: 10.1021/acsami.0c03116
Qiang Fu 1 , Hongwei Tan 1 , Luzheng Liu 2 , Chuxiong Hu 2 , Jin Ouyang 1 , Na Na 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-04-14 , DOI: 10.1021/acsami.0c03116
Qiang Fu 1 , Hongwei Tan 1 , Luzheng Liu 2 , Chuxiong Hu 2 , Jin Ouyang 1 , Na Na 1
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The solvent content strongly affects the viscoelastic properties and network structure of hydrogels. Because of the gels' structural susceptibility and autofluorescence background, there is still no visual method to evaluate the water content in micropores. Herein, a colorimetric molecular probe (DHBYD) was synthesized for in situ visualization of water content in the micropores of hydrogels. The rapid and reversible colorimetric responses of DHBYD to solvents were obtained, which resulted a full linearity range (0 to 100%) for detecting water content in real time. Demonstrated by theoretical calculations, the sensing was attributed to changes in intramolecular charge transfer via deprotonation of phenol group. A cubic polynomial, on correlation of RGB values with water content, was established for real detection of water content in hydrogels. It reveals a new pathway for simple, in situ, and full-range evaluation of solvent content in micropores of hydrogels without any complicated procedures or expensive instruments. This would achieve fast and in situ monitoring of hydrogels to improve gel properties for better applications. It can be extended to evaluate the solvent content in other fields such as synthesis and industrial applications.
中文翻译：
水凝胶可视化原位H2O仪
溶剂含量强烈影响水凝胶的粘弹性和网络结构。由于凝胶的结构敏感性和自发荧光的背景，仍然没有目测评估微孔中水含量的方法。本文中，合成了比色分子探针（DHBYD），用于水凝胶微孔中水的原位可视化。获得了DHBYD对溶剂的快速和可逆的比色响应，从而获得了用于实时检测水分的完整线性范围（0至100％）。通过理论计算证明，该传感归因于通过酚基团去质子化的分子内电荷转移的变化。建立了RGB值与水含量相关性的三次多项式，用于水凝胶中水的真实检测。它揭示了一种无需任何复杂程序或昂贵仪器即可简单，原位和全方位评估水凝胶微孔中溶剂含量的新途径。这将实现对水凝胶的快速和原位监测，以改善凝胶性能，从而实现更好的应用。它可以扩展到评估其他领域的溶剂含量，例如合成和工业应用。
更新日期：2020-04-23
中文翻译：
水凝胶可视化原位H2O仪
溶剂含量强烈影响水凝胶的粘弹性和网络结构。由于凝胶的结构敏感性和自发荧光的背景，仍然没有目测评估微孔中水含量的方法。本文中，合成了比色分子探针（DHBYD），用于水凝胶微孔中水的原位可视化。获得了DHBYD对溶剂的快速和可逆的比色响应，从而获得了用于实时检测水分的完整线性范围（0至100％）。通过理论计算证明，该传感归因于通过酚基团去质子化的分子内电荷转移的变化。建立了RGB值与水含量相关性的三次多项式，用于水凝胶中水的真实检测。它揭示了一种无需任何复杂程序或昂贵仪器即可简单，原位和全方位评估水凝胶微孔中溶剂含量的新途径。这将实现对水凝胶的快速和原位监测，以改善凝胶性能，从而实现更好的应用。它可以扩展到评估其他领域的溶剂含量，例如合成和工业应用。
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