A Microfluidic Method for Sensor Fabrication on Curved Surfaces
نویسندگان
چکیده
We present a microfluidic technique for precision patterning thin-film metals (silver and gold) without the need for photolithography. This technique is employed for the fabrication of metal resistors that are subsequently utilized as temperature sensors, strain gauges, and fluid flow sensors. Patterns of thin film metal are fabricated by premixing and flowing electroless silver or gold plating solutions through predefined polydimethylsiloxane (PDMS) microchannels sealed against the surface of interest. The properties exhibited by PDMS, such as its tendency to adhere to clean surfaces and its flexibility, allow this technique to be carried out on both planar and curved surfaces.
منابع مشابه
Deposition and Patterning of Thin-film Materials on Curved Surfaces Using Microfluidic Methods
In this paper, we present a microfluidic technique that overcomes many of the limitations currently faced by photolithography-based approaches. In-situ deposition can be used to produce precision patterns of thin-film materials (silver, gold, photoresist) on various substrates with a broad range of shapes, sizes, and curvatures in a rapid and straightforward manner. The surface profile, mechani...
متن کاملMicrofluidic method for in-situ deposition and precision patterning of thin-film metals on curved surfaces
We present a technique for patterning thin-film metals (silver and gold) without the need for photolithography. The technique involves microfluidics and can be performed on planar or curved surfaces. Patterns of thin-film metal are fabricated by flowing electroless silver or gold plating solutions through predefined microchannels made of polydimethylsiloxane sealed against a surface of interest...
متن کاملFabrication of 1, 1-Dimethylhydrazine Gas sensor Based on Nano Structure Conducting Polyaniline
Determination of 1, 1-dimethylhydrazine (DMH) in air is carried out by spectrophotometry, GC or HPLC analysis, but in this study DMH was analyzed by a gas sensor based on nanostructure conducting polyaniline. Determination of DMH has been done very simplely and quickly in recent work. Electrically conductive fibers have been prepared by polymerization of aniline on surfaces of commercial polyme...
متن کاملPrecision Patterning of PDMS Thin Films: A New Fabrication Method and Its Applications
We present a novel fabrication method for patterning PDMS thin films on solid surfaces. The method allows microstructures with precise lateral dimensions and heights to be formed using PDMS. We have applied this technology to form microfluidic channel units, reaction chambers, and micro elastic gaskets. This new fabrication method could potentially give rise to an efficient and reliable approac...
متن کاملRapid, cost-efficient fabrication of microfluidic reactors in thermoplastic polymers by combining photolithography and hot embossing.
We report a cost-efficient and easy to implement process for fabricating microfluidic reactors in thermoplastic materials. The method includes (i) the fabrication of an imprint template (master), which consists of a photoresist deposited on a metal plate; (ii) the thermoembossing of the reactor features into polymer sheets; (iii) the activation of the embossed and planar thermoplastic surfaces;...
متن کامل