热力学平衡条件下的接触角测量。
Contact angle measurements under thermodynamic equilibrium conditions.
作者信息
Lages Carol, Méndez Eduardo
机构信息
Laboratorio de Biomateriales, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Iguá 4225 casi Mataojo, 11400, Montevideo, Uruguay.
出版信息
Anal Bioanal Chem. 2007 Aug;388(8):1689-92. doi: 10.1007/s00216-007-1373-1. Epub 2007 Jun 2.
The precise control of the ambient humidity during contact angle measurements is needed to obtain stable and valid data. For a such purpose, a simple low-cost device was designed, and several modified surfaces relevant to biosensor design were studied. Static contact angle values for these surfaces are lower than advancing contact angles published for ambient conditions, indicating that thermodynamic equilibrium conditions are needed to avoid drop evaporation during the measurements.
在接触角测量过程中，需要精确控制环境湿度以获得稳定且有效的数据。为此，设计了一种简单的低成本装置，并研究了几种与生物传感器设计相关的改性表面。这些表面的静态接触角值低于在环境条件下公布的前进接触角，这表明需要热力学平衡条件来避免测量过程中液滴蒸发。
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