Zhang Qiang Matthew, Serpe Michael J
Department of Chemistry, University of Alberta , 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada.
ACS Appl Mater Interfaces. 2015 Dec 16;7(49):27547-53. doi: 10.1021/acsami.5b09875. Epub 2015 Dec 7.
A versatile surface modification technique was developed to yield poly(N-isopropylacrylamide) (pNIPAm) microgel-based thin films on a variety of substrates, e.g., metals, nonmetals, and polymers. Because the chemistry, and hence functionality and responsivity, of the pNIPAm-based microgels is easily tuned, multifunctional and responsive thin films could be generated on many different surfaces without varying the coating conditions. In one case, we showed that fluorescent/light emitting thin films could be generated using crystal violet-modified microgels. Antibacterial films could be obtained using silver nanoparticle-modified pNIPAm-based microgels. Finally, we show that thin films fabricated via the methods here could be used as a component in optical sensors. Although we show only a few examples of the utility of this approach, we feel that the apparent universality of the technique can be extended to countless other applications.
开发了一种通用的表面改性技术，以在各种基材（如金属、非金属和聚合物）上制备基于聚（N-异丙基丙烯酰胺）（pNIPAm）微凝胶的薄膜。由于基于pNIPAm的微凝胶的化学性质以及因此的功能和响应性易于调节，因此可以在许多不同表面上生成多功能和响应性薄膜，而无需改变涂层条件。在一个案例中，我们表明使用结晶紫改性的微凝胶可以生成荧光/发光薄膜。使用银纳米颗粒改性的基于pNIPAm的微凝胶可以获得抗菌薄膜。最后，我们表明通过此处方法制备的薄膜可以用作光学传感器的组件。尽管我们仅展示了这种方法实用性的几个例子，但我们认为该技术的明显通用性可以扩展到无数其他应用。
