Complete Prevention of Bubbles in a PDMS-Based Digital PCR Chip with a Multifunction Cavity

S Gao, T Xu, L Wu, X Zhu, X Wang, Y Chen, G Li, X Li - Biosensors, 2024 - mdpi.com
In a chamber-based digital PCR (dPCR) chip fabricated with polydimethylsiloxane (PDMS),
bubble generation in the chambers at high temperatures is a critical issue. Here, we found …

A Seal-Free Valveless Digital PCR Chip Supported with a High-Pressure Water Circulation System

T Xu, L Wu, X Wang, X Zhu, J Chen… - 2020 IEEE 33rd …, 2020 - ieeexplore.ieee.org
We revealed the reason for bubble formation in a PDMS-based digital PCR (dPCR) chip: the
porous PDMS material drives water vapor out of the chip at high temperature and sucks air …

A PDMS-based digital PCR chip with vacuum aspiration and water-filling cavity integrated for sample loading and evaporation reduction

T Xu, L Wu, X Wang, X Zhu, Y Bao… - 2018 IEEE Micro …, 2018 - ieeexplore.ieee.org
We report a novel Polydimethylsiloxane (PDMS) based digital PCR (dPCR) chip with an
integrated dual-function cavity that accelerates sample loading before the reaction and …

A size reduction method for rapid digital PCR using thin-film chip and vacuum pouch microfluidic system

CJ Lee, YH Hsu - Microfluidics and Nanofluidics, 2022 - Springer
The digital polymerase chain reaction (dPCR) is a high efficacy detection method that is
widely applied in lab-on-a-chip systems. Reported dPCR microfluidic devices usually …

A self-priming microfluidic chip with cushion chambers for easy digital PCR

G Xu, H Si, F Jing, P Sun, D Wu - Biosensors, 2021 - mdpi.com
A polydimethylsiloxane (PDMS)-based self-priming microfluidic chip with cushion chambers
is presented in this study for robust and easy-operation digital polymerase chain reaction …

A glass–ultra-thin PDMS film–glass microfluidic device for digital PCR application based on flexible mold peel-off process

Y Xia, X Chu, C Zhao, N Wang, J Yu, Y Jin, L Sun, S Ma - Micromachines, 2022 - mdpi.com
The microfluidic device (MFD) with a glass–PDMS–glass (GPG) structure is of interest for a
wide range of applications. However, GPG MFD fabrication with an ultra-thin PDMS film …

Small volume PCR in PDMS biochips with integrated fluid control and vapour barrier

AR Prakash, S Adamia, V Sieben, P Pilarski… - Sensors and Actuators B …, 2006 - Elsevier
In this paper we demonstrate a new method for microfabricating PDMS devices that controls
vapour diffusion, thereby reducing water loss at elevated temperatures and greatly …

A self-digitization chip integrated with hydration layer for low-cost and robust digital PCR

Y Ning, X Cui, C Yang, F Jing, X Bian, L Yi, G Li - Analytica chimica acta, 2019 - Elsevier
We present a self-discretization and zero-water-loss microfluidic digital PCR (dPCR) device
to enable low-cost and robust quantitative nucleic acid assays. In this device, a thin void is …

PDMS–glass serpentine microchannel chip for time domain PCR with bubble suppression in sample injection

CH Cho, W Cho, Y Ahn, SY Hwang - Journal of Micromechanics …, 2007 - iopscience.iop.org
This paper reports on the development of a low-cost microreactor (10 µl) biochip for DNA
polymerase chain reaction (PCR). The microbiochip (20 mm× 28 mm) is a hybrid type that is …

Real-time PCR array chip with capillary-driven sample loading and reactor sealing for point-of-care applications

N Ramalingam, HB Liu, CC Dai, Y Jiang, H Wang… - Biomedical …, 2009 - Springer
A major challenge for the lab-on-a-chip (LOC) community is to develop point-of-care
diagnostic chips that do not use instruments. Such instruments include pumping or liquid …