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Freely suspended cellular "backpacks" lead to cell aggregate self-assembly.


ABSTRACT: Cellular "backpacks" are a new type of anisotropic, nanoscale thickness microparticle that may be attached to the surface of living cells creating a "bio-hybrid" material. Previous work has shown that these backpacks do not impair cell viability or native functions such as migration in a B and T cell line, respectively. In the current work, we show that backpacks, when added to a cell suspension, assemble cells into aggregates of reproducible size. We investigate the efficiency of backpack-cell binding using flow cytometry and laser diffraction, examine the influence of backpack diameter on aggregate size, and show that even when cell-backpack complexes are forced through small pores, backpacks are not removed from the surfaces of cells.

SUBMITTER: Swiston AJ 

PROVIDER: S-EPMC2903013 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature

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Freely suspended cellular "backpacks" lead to cell aggregate self-assembly.

Swiston Albert J AJ   Gilbert Jonathan B JB   Irvine Darrell J DJ   Cohen Robert E RE   Rubner Michael F MF  

Biomacromolecules 20100701 7


Cellular "backpacks" are a new type of anisotropic, nanoscale thickness microparticle that may be attached to the surface of living cells creating a "bio-hybrid" material. Previous work has shown that these backpacks do not impair cell viability or native functions such as migration in a B and T cell line, respectively. In the current work, we show that backpacks, when added to a cell suspension, assemble cells into aggregates of reproducible size. We investigate the efficiency of backpack-cell  ...[more]

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