How does paper based microfluidics work?
Paper-based microfluidics are microfluidic devices that consist of a series of hydrophilic cellulose or nitrocellulose fibers that transport fluid from an inlet through the porous medium to a desired outlet or region of the device, by means of capillary action.
What is microfluidics PDF?
Microfluidics concerns the manipulation of small volumes of fluids (typically nanoliters or less) within networks of channels that have dimensions of tens to hundreds of micrometers.
What is microfluidics system?
Microfluidics is the science and technology of systems that process or manipulate small amounts of fluidics (10−9 to 10−18L), using channels measuring from tens to hundreds of micrometers.
What is a paper assay?
Paper-based assays are paper strips which can test for the presence of a biomarker in a biological fluid. Most paper-based assays are immunoassays, i.e., they use antibodies to bind to the biomarker of interest.
What are microfluidic paper-based analytical devices?
Microfluidic paper-based analytical devices (μPADs) are a new class of point-of-care diagnostic devices that are inexpensive, easy to use, and designed specifically for use in developing countries.
Who discovered microfluidics?
Frederick Stanley Kipping, the British chemist considered the father of silicon chemistry. The first microfluidic devices were usually made of silicon and glass since the fabrication techniques derived from microelectronics were well known [3].
What is PDMS microfluidics?
Polydimethylsiloxane, called PDMS or dimethicone, is a polymer widely used for the fabrication and prototyping of microfluidic chips. It is a mineral-organic polymer (a structure containing carbon and silicon) of the siloxane family (word derived from silicon, oxygen and alkane).
How are Microfluidics made?
Microfluidic chips are usually fabricated by making thin grooves or small wells on the surface of a layer, and then enclosing those features by means of a second layer to form microchannels or chambers. Channels need to be leak-proof thus the layers must be properly bonded.
What is the role of Microfluidics technology in the society?
Microfluidic technology has the potential to be used as a platform to investigate interactions between drug carriers and cells, and also the treatment effects of active compounds and drugs. Thus, these platforms can be helpful for filling the gap between animal studies and human clinical trials.
What are microfluidic paper based analytical devices?
Is lateral flow a microfluidic?
In this work, a microfluidic-integrated lateral flow recombinase polymerase amplification (MI-IF-RPA) assay was developed for rapid and sensitive detection of SARS-CoV-2, which integrates the reverse transcription recombinase polymerase amplification (RT-RPA) and a universal lateral flow (LF) dipstick detection system …
What is paper analytical device?
Paper-based analytical devices are being utilized as biosensors and immunoassays for detecting biological analytes associated with disease. The technology is also being employed for testing contaminated food in order to reduce rates of infections caused by foodborne pathogens.
Which of the following process will be used to cut the paper sheets for microfluidic applications?
3.1. Paper cutting is one of the simplest and oldest techniques for fabricating channels out of paper. In this fabrication process, paper is cut into a network of channels and zones using a programmable knife cutter (cutting plotter) or a laser cutter (CO2 laser).
What is the curing agent for PDMS?
Polydimethylsiloxane (PDMS), a silicone-based elastomeric polymer, is generally cured by applying heat to a mixture of a PDMS base and crosslinking agent, and its material properties differ according to the mixing ratio and heating conditions.
Where is microfluidics used?
Applications of microfluidics Microfluidic systems are widely used in procedures such as capillary electrophoresis, isoelectric focusing, immunoassays, flow cytometry, sample injection in mass spectrometry, PCR amplification, DNA analysis, separation and manipulation of cells, and cell patterning.