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Reference type: Journal
Authors: DePorter SM, Lui I, McNaughton BR
Article Title: Programmed cell adhesion and growth on cell-imprinted polyacrylamide hydrogels.
Publication date: 2012
Journal: Soft Matter
Volume: 8
Issue: (40)
Page numbers: 10403-10408.
DOI: 10.1039/C2SM25622C

Abstract: Gaining control over cell adhesion and growth is a critical step in microscale tissue engineering, as well as biosensor fabrication, applied cell biology, and high-throughput cell-based screening. Control over cell adhesion and growth is typically achieved by patterning small molecule or macromolecule reagents with affinity for a cell surface receptor onto a non-adhesive surface. These reagents are often susceptible to environmental and/or enzymatic degradation and their preparation and purification increase the overall cost and complexity of surface fabrication. Surface topology can influence cell adhesion and growth; however, engineering a surface with well-defined topology typically requires expensive and/or specialized equipment and/or multi-step processes such as microcontact printing. In this Paper we show that cell-imprinted features on the surface of a polyacrylamide hydrogel act as surface contact cues that promote cell adhesion and growth. In some cases the shape of cell-imprints dramatically affect cell adhesion. Collectively, we demonstrate that cell-imprinting polyacrylamide hydrogels is an inexpensive and straightforward method for programming cell adhesion and growth
Template and target information: cells, HeLa cells (human cervical cancer, epithelial-like morphology), HEK-293T cells (human embryonic kidney, epithelial-like morphology), MRC-9 cells (human embryonic lung, fibroblast-like morphology)

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