Nanoparticle tension probes patterned at the nanoscale: impact of integrin clustering on force transmission.
Nanoparticle tension probes patterned at the nanoscale: impact of integrin clustering on force transmission.
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DOI:
10.1021/nl501912g
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发表时间:
2014-10-08
期刊:
影响因子:
10.8
通讯作者:
Salaita K
中科院分区:
文献类型:
--
作者:
Liu Y;Medda R;Liu Z;Galior K;Yehl K;Spatz JP;Cavalcanti-Adam EA;Salaita K
Herein we aimed to understand how nanoscale clustering of RGD ligands alters the mechano-regulation of their integrin receptors. We combined molecular tension fluorescence microscopy with block copolymer micelle nanolithography to fabricate substrates with arrays of precisely spaced probes that can generate a 10-fold fluorescence response to pN-forces. We found that the mechanism of sensing ligand spacing is force-mediated. This strategy is broadly applicable to investigating receptor clustering and its role in mechanotransduction pathways.
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