The research of circulating tumor cells (CTCs) has drawn much attention in recent years. It is because of the potential values of CTCs in early diagnosis of cancer, management of clinical treatment, exploration of metastatic mechanism, and development of personalized medicine. However, isolating CTCs has been technically challenging due to their rare numbers in blood. Recently, a variety of microfluidic devices have been developed for CTC isolation, and these devices can realize high capture efficiency and high purity. While enumeration of CTCs has been achieved, further cellular and DNA analysis on the captured CTCs are less reported. In this article, we review recent reports in microfluidic methods for isolation of CTCs and subsequent cellular analysis on them.
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http://dx.doi.org/10.2174/1389201017666160301103509 | DOI Listing |
Sensors (Basel)
January 2025
Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC-MN), Rua Alves Redol, 1000-029 Lisbon, Portugal.
Point-of-care (PoC) devices offer a promising solution for fast, portable, and easy-to-use diagnostics. These characteristics are particularly relevant in agrifood fields like viticulture where the early detection of plant stresses is crucial to crop yield. Microfluidics, with its low reagent volume requirements, is well-suited for such applications.
View Article and Find Full Text PDFMicromachines (Basel)
January 2025
Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo, Tokyo 112-8681, Japan.
Microfluidic-based cell-stretching devices are vital for studying the molecular pathways involved in cellular responses to mechanobiological processes. Accurate evaluation of these responses requires detailed observation of cells cultured in this cell-stretching device. This study aimed to develop a method for preparing microscope slides to enable high-magnification imaging of cells in these devices.
View Article and Find Full Text PDFMicromachines (Basel)
January 2025
School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK.
This study evaluates the performance of continuous flow and drop-based microfluidic devices for the synthesis of silver nanoparticles (AgNPs) under identical hydrodynamic and chemical conditions. Flows at low values of Dean number (De < 1) were investigated, where the contribution of the vortices forming inside the drop to the additional mixing inside the reactor should be most noticeable. In the drop-based microfluidic device, discrete aqueous drops serving as reactors were generated by flow focusing using silicone oil as the continuous phase.
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December 2024
Zepto Life Technology Inc., 1000 Westgate Drive, St. Paul, MN 55114, USA.
Accurate fluid management in microfluidic-based point-of-care testing (POCT) devices is critical. Fluids must be gated and directed in precise sequences to facilitate desired biochemical reactions and signal detection. Pneumatic valves are widely utilized for fluid gating due to their flexibility and simplicity.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
Department of Physics and Engineering, Moldova State University, MD-2009 Chisinau, Moldova.
This article analyzes the prospects for the appearance of paper-based sensors on the sensor market. It is concluded that paper-based sensors are not a fantasy but a reality. It is shown that paper has properties that make it possible to develop a wide variety of paper-based sensors, such as SERS, colorimetric, fluorescent, conductometric, capacitive, fiber-optic, electrochemical, microfluidic, shape-deformation, microwave, and various physical sensors.
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