Bioinspired Preparation Of Superwetting Patterned Devices For The Detection Of Pollutants And Moisture

With the development of textile industry,electronic textiles have received widespread attention in flexible smart devices.Humidity sensors have been widely used in industries,agriculture,environmental monitoring,and human activity detectors.However,the textile waste water still threatens human safety and the detection of pollutants has become an indispensable link.And the superwetting micropatterned surface can realize the detection of pollutants.Superwetting micropatterned surface is a multifunctional surface with superhydrophobicity and superhydrophilicity.These micropattern arrays have great potential in the fields of biomolecules and cell graphics,miniaturized separation and diagnosis,cellular and chemical microarrays,3D microenvironment screening,digital microfluidics,and droplet chemical synthesis.In this paper,the super-wetting micropatterned coatings were prepared by polycondensation of vinyl trichlorosilane and photoclink reaction induced by ultraviolet light.The coating is applied to titanium plates and cotton fabric substrates,and their applications in pollutant detection and humidity sensing are discussed separately.The main research contents and conclusions are as follows:1.The preparation and application of superwetting micropatterned titanium.Surface Raman enhanced spectroscopy as the main environmental detection technology is widely used in the monitoring of pollutants of various phase components.This kind of paper mainly uses the selective deposition function of super-infiltrating micropattern surface to deposit the detected silver nanoparticles in a dendritic form in the hydrophilic region,and the pollutants can be concentrated in this region,which is of great help for the detection of trace pollutants.2.The preparation and application of superwetting micropatterned cotton fabric.In this project,the carboxylated GO was selectively deposited on the surface of ultra-infiltrating micropattern fabric to achieve moisture enrichment.Meanwhile,the performance of the humidity sensor was improved by increasing oxygen-containing functional groups and increasing proton migration.It is found that the electronic textile based on the substrate has high sensitivity,reliability,and feasibility.It is proved that the electronic textile based on fabric has great potential in many applications as flexible intelligent equipment.