Temporal Modulation of Stem Cell Activity Using Magnetoactive Hydrogels.
Temporal Modulation of Stem Cell Activity Using Magnetoactive Hydrogels.
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DOI:
10.1002/adhm.201600349
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发表时间:
2016-10
影响因子:
10
通讯作者:
Kilian, Kristopher A.
中科院分区:
文献类型:
--
作者:
Abdeen, Amr A.;Lee, Junmin;Bharadwaj, N. Ashwin;Ewoldt, Randy H.;Kilian, Kristopher A.
Cell activity is coordinated by dynamic interactions with the extracellular matrix, often through stimuli-mediated spatiotemporal stiffening and softening. Dynamic changes in mechanics occur in vivo through enzymatic or chemical means, processes which are challenging to reconstruct in cell culture materials. Here we present a magnetoactive hydrogel material formed by embedding magnetic particles in a hydrogel matrix whereby elasticity can be modulated reversibly by attenuation of a magnetic field. We show orders of magnitude change in elasticity using low magnetic fields and demonstrate reversibility of stiffening with simple permanent magnets. The broad applicability of this technique is demonstrated with two therapeutically relevant bioactivities in mesenchymal stem cells: secretion of proangiogenic molecules, and dynamic control of osteogenesis. The ability to reversibly stiffen cell culture materials across the full spectrum of soft tissue mechanics, using simple materials and commercially available permanent magnets, will make this approach viable for a broad range of laboratory environments.
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影响因子:
14.8
作者:
通讯作者:
--
DOI:
10.1007/978-1-4939-2065-5_6
发表时间:
2015-01-01
期刊:
COMPLEX FLUIDS IN BIOLOGICAL SYSTEMS: EXPERIMENT, THEORY, AND COMPUTATION
影响因子:
--
作者:
Ewoldt, Randy H.;Johnston, Michael T.;Caretta, Lucas M.
通讯作者:
Caretta, Lucas M.
影响因子:
41.2
作者:
Chaudhuri O;Gu L;Klumpers D;Darnell M;Bencherif SA;Weaver JC;Huebsch N;Lee HP;Lippens E;Duda GN;Mooney DJ
通讯作者:
Mooney DJ
DOI:
10.1073/pnas.0903269107
发表时间:
2010-03-16
影响因子:
11.1
作者:
Kilian, Kristopher A.;Bugarija, Branimir;Mrksich, Milan
通讯作者:
Mrksich, Milan
影响因子:
6.9
作者:
Latimer, Andrew;Jessen, Jason R.
通讯作者:
Jessen, Jason R.