Pressure driven tough micro pump
We have developed pressure driven micro pump. They can deliver gas and liquid. That is an absolute advantage of the scale of this pump. Our pump is designed for integration in a multi well plate [...]
Keywords: PDMS
Generation of picoliter and nanoliter drops on-demand in a microfluidic chip
In this work, we introduce the novel technique of in-chip drop-on-demand, which consists in dispensing picoliter to nanoliter drops on demand directly in the liquid-filled channels of a polymer microfluidic chip. The technique involves a [...]
Novel Electro Magnetic Micro Pump
The mergence of partial aspects and functional components of micro actuators and micro fluidic technology allows the development of complex micro systems. This enormous potential is shown in this article by the realization of an [...]
New sample injection methods for chip electrophoresis
Electrokinetic injection is commonly utilized in capillary chip electrophoresis (CE) even though mobility and matrix bias makes quantitation difficult. Hence, injection techniques that provide for both reproducible and precise injection of sample are warranted. Herein, [...]
Negative-Poisson’s-Ratio (NPR) Microstructural Material by Soft-Joint Mechanism
We present an example of making a negative-coefficient material - Negative Poisson’s Ratio (NPR) material, which expands in the cross section when stretching. The NPR materials can provide unique characteristics in energy absorption. The NPR [...]
Novel PDMS stamp for imprint lithography
New PDMS/epoxy composite material which has sufficent mechanical strength is used as a stamp for the imprinting lithography. Its fabrication procedure, and the imprinting results using this stamp will be discussed.
Chemically Robust Microfluidic Devices for Radiochemistry Platforms
We report the fabrication of solvent-compatible microfluidic devices based on photocurable “Liquid Teflon” materials. The materials are highly fluorinated functionalized perfluoropolyethers (PFPEs) that have liquidlike viscosities that can be cured into highly durable elastomers that [...]
Coin-Shaped Reactor in Microfluidic Devices Used for Radiopharmaceutical Synthesis
Elizarov A.M., Kolb H.C., van Dam R.M., Heath J.R., Padgett H.C., Huang J., Daridon A., California Institute of Technology, US
A microfluidic device designed and optimized for the multi-step synthesis of PET (Positron Emisssion Tomography) probes is presented. It is the first device in its class to produce radiopharmaceuticals of sufficient quality and quantity (over [...]
Microfabrication of 3D Structures Using Novel Thermoplastic Elastomers
We demonstrate the use of novel thermoplastic elastomers synthesized by dissolving readily available polystyrene–(polyethylene/ polybutylene)–polystyrene (SBS/SEBS) triblock copolymers (e.g., Kraton™ G series) in hydrocarbon oils for which the ethylene/butylene midblocks are selectively miscible. The insoluble [...]
Fabrication of Nanochannels with Microfluidic Interface using PDMS Casting on Si/Ti Nanomold
In this abstract, the fabrication of nanochannels using poly (dimethylsiloxane) (PDMS) casting on Si/Ti mold is proposed and results are presented. This work can possibly enable the mass-production of low cost nanochannels to study basic [...]