Stabilization of coating for QCM odor sensors with liquid GC materials supported by lipopolymers and lipids
Stabilization of coating for QCM odor sensors with liquid GC materials supported by lipopolymers and lipids
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DOI：
10.1016/j.snb.2012.09.025
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发表时间：
2013-03
影响因子：
8.4
通讯作者：
B. Wyszynski;Daeho Kim;T. Nakamoto
中科院分区：
文献类型：
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作者：
B. Wyszynski;Daeho Kim;T. Nakamoto
本文报道了一种利用液态GC固定相材料稳定QCM气味传感器涂层的方法。当液体材料直接涂覆在传感器表面时，很容易从传感器表面移除。所提出的方法使用化学吸附的脂类聚合物和脂类形成基质，将液体GC材料封装在其中。该制造方法相对简单，因为传感膜是在从单一溶液的吸附过程中形成的。实验结果表明，所制备的敏感膜的稳定性得到了显著的提高。所获得的传感器对选定气味的蒸气显示出高灵敏度，检测下限在亚百万分之范围内。它们也显示出很好的辨别气味样本的能力。
The paper reports on development of a method for stabilization of coatings for QCM odor sensors that use liquid GC stationary phase materials. The liquid materials tend to be easily removed from the sensor's surface when coated directly onto its surface. The proposed method employs chemisorbed lipopolymers and lipids to form a matrix into which the liquid GC materials are encapsulated. The fabrication method is relatively simple as the sensing films are formed in a sorption process from a single solution. The obtained experimental results show significantly enhanced stability of the fabricated sensing films. The obtained sensors reproducibly show high sensitivities to vapors of selected odorants with detection limits in sub-ppm range. They also showed a good capability to discriminate among the odorant samples.