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Design and fabrication of high-throughput application-specific microfluidic devices for studying single-cell responses to extracellular perturbations

Paper i proceeding
Författare Amin Abbaszadehbanaeiyan
Doryaneh Ahmadpour
Caroline B. Adiels
Mattias Goksör
Publicerad i Proc. SPIE 8765, Bio-MEMS and Medical Microdevices, 87650K
Volym 8765
Publiceringsår 2013
Publicerad vid Institutionen för fysik (GU)
Språk en
Länkar proceedings.spiedigitallibrary.org/...
Ämnesord microfluidic device, single cell analysis, high-throughput, microscopy
Ämneskategorier Optik, Optisk fysik, Nanoteknik, Molekylär biofysik, Cellbiologi

Sammanfattning

Single cell analysis techniques provide a unique opportunity of determining the intercellular heterogeneity in a cell population, which due to genotype variations and different physiological states of the cells i.e. size, shape and age, cannot be retrieved from averaged cell population values. In order to obtain high-value quantitative data from single-cell experiments it is important to have experimental platforms enabling high-throughput studies. Here, we present a microfluidic chip, which is capable of capturing individual cells in suspension inside separate traps. The device consists of three adjacent microchannels with separate inlets and outlets, laterally connected through the V-shaped traps. Vshaped traps, with openings smaller than the size of a single cell, are fabricated in the middle (main) channel perpendicular to the flow direction. Cells are guided into the wells by streamlines of the flows and are kept still at the bottom of the traps. Cells can then be exposed to extracellular stimuli either in the main or the side channels. Microchannels and traps of different sizes can be fabricated in polydimethylsiloxane (PDMS), offering the possibility of independent studies on cellular responses with different cell types and different extracellular environmental changes. We believe that this versatile high-throughput cell trapping approach will contribute to further development of the current knowledge and information acquired from single-cell studies and provide valuable statistical experimental data required for systems biology. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

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