Polydimethylsiloxane Chip
Polydimethylsiloxane Chip - Related Videos
10:01
Kinetics of Addition Polymerization to Polydimethylsiloxane
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Polymers are molecules consisting of many repeating monomer units that are chemically bonded into long chains. They exhibit a broad range of physical properties, which are affected by their chemical structure, molecular weight and degree of polymerization. The polymer industry manufactures thousands of raw materials used in a broad variety of commercial products.1,2 The...
04:55
Immobilization of Live Caenorhabditis elegans Individuals Using an Ultra-thin Polydimethylsiloxane Microfluidic Chip with Water Retention
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Cited by 15 •
2019
A series of immobilization methods has been established to allow the targeted irradiation of live Caenorhabditis elegans individuals using a recently developed ultra-thin polydimethylsiloxane microfluidic chip with water retention. This novel on-chip immobilization is also adequate for imaging observations. The detailed treatment and application examples of the chip are explained.
08:23
Automated Lipid Bilayer Membrane Formation Using a Polydimethylsiloxane Thin Film
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Cited by 4 •
2016
We demonstrate a storable, transportable lipid bilayer formation system. A lipid bilayer membrane can be formed within 1 hr with over 80% success rate when a frozen membrane precursor is brought to ambient temperature. This system will reduce laborious processes and expertise associated with ion channels.
07:50
Chip-Based Digital PCR to Detect Rare Transcript Variants Using a Nanofluidic Chip
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2025
This video demonstrates chip-based digital PCR — a variation of the digital PCR technique that is useful in detecting rare transcript variants. The PCR reaction is partitioned into the chambers of a nanofluidic chip, each of which acts as an independent reaction. The detection of fluorescence signals from the chambers with amplified targets confirms the presence of rare transcript variants in the sample.
01:35
Organ-on-Chip Models
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2026
Introduction to Organ-on-Chip Models Organ-on-chip models are advanced microphysiological systems that recreate key structural and functional features of human organs in a controlled laboratory setting. These devices integrate living human cells within microfluidic channels, allowing researchers to simulate tissue–tissue interfaces, fluid flow, and mechanical forces that are essential for normal organ function. Unlike traditional cell cultures, which often lack these dynamic physiological cues,...
FAQs
PDMS’s combination of transparency, elastomeric behavior, and rapid gas exchange provides complementary experimental advantages. Transparency permits optical imaging through the device, gas exchange supports biological culture environments, and the material accommodates microscale channel networks for controlled fluid handling. Together, these features allow researchers to observe biological processes while regulating local experimental conditions.
Soft lithography transfers a designed pattern into the device by using a mold with the desired channel geometry. PDMS is cured against this patterned mold, preserving the microscale features, and then bonded to glass or another surface. This sequence converts a geometric design into enclosed channels suitable for controlled fluid handling and biological experiments.
Miniaturizing fluid handling reduces the amount of reagent required for an experiment and allows conditions to be controlled within small channel networks. This scale also supports localized biological environments and controlled chemical exposure. As a result, investigators can perform cell studies, gradient experiments, and small-volume assays with precise environmental regulation and lower material consumption.
Channel geometry and controlled flow allow different fluid conditions to be arranged within a microscale device, making the chip suitable for studying chemical gradients. Researchers can examine biological responses under spatially controlled chemical environments while using small sample volumes. This capability connects fluid design with quantitative investigation of how cells respond to changing local conditions.
A basic workflow starts by creating a patterned mold that defines the intended channel layout. PDMS is then placed against the mold and cured so the pattern becomes part of the elastomeric device. Finally, the structured PDMS is bonded to glass or another surface, producing enclosed channels for subsequent fluid and biological experiments.
PDMS chips are useful for cell culture, organ-on-chip models, chemical-gradient studies, and small-volume assays. Their controlled flow and optical access support experiments that require observation while conditions are regulated in microscale channels. The same platform can therefore serve both as a prototype for new device designs and as a tool for quantitative biological research.
These devices provide controlled microscale environments in which researchers can investigate cell behavior, chemical responses, and fluid-dependent conditions. Optical imaging enables direct observation, while channel-based flow control helps maintain defined experimental settings. Such measurements support quantitative biological research and can reveal responses within cell culture, organ-on-chip, gradient, or small-volume assay formats.