Nerve Cells Decide to Orient inside an Injectable Hydrogel with Minimal Structural Guidance.
Nerve Cells Decide to Orient inside an Injectable Hydrogel with Minimal Structural Guidance.
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DOI:
10.1021/acs.nanolett.7b01123
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发表时间:
2017-06-14
期刊:
影响因子:
10.8
通讯作者:
De Laporte L
中科院分区:
文献类型:
--
作者:
Rose JC;Cámara-Torres M;Rahimi K;Köhler J;Möller M;De Laporte L
Injectable biomaterials provide the advantage of a minimally invasive application but mostly lack the required structural complexity to regenerate aligned tissues. Here, we report a new class of tissue regenerative materials that can be injected and form an anisotropic matrix with controlled dimensions using rod-shaped, magnetoceptive microgel objects. Microgels are doped with small quantities of superparamagnetic iron oxide nanoparticles (0.0046 vol %), allowing alignment by external magnetic fields in the millitesla order. The microgels are dispersed in a biocompatible gel precursor and after injection and orientation are fixed inside the matrix hydrogel. Regardless of the low volume concentration of the microgels below 3%, at which the geometrical constrain for orientation is still minimum, the generated macroscopic unidirectional orientation is strongly sensed by the cells resulting in parallel nerve extension. This finding opens a new, minimal invasive route for therapy after spinal cord injury.
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影响因子:
41.2
作者:
Grafahrend, Dirk;Heffels, Karl-Heinz;Groll, Juergen
通讯作者:
Groll, Juergen
影响因子:
4.9
作者:
Browning, M. B.;Cereceres, S. N.;Luong, P. T.;Cosgriff-Hernandez, E. M.
通讯作者:
Cosgriff-Hernandez, E. M.
影响因子:
14
作者:
Cheng, Tzu-Yun;Chen, Ming-Hong;Wang, Tzu-Wei
通讯作者:
Wang, Tzu-Wei
DOI:
10.1016/j.jconrel.2012.06.009
发表时间:
2012-08-20
期刊:
Journal of controlled release : official journal of the Controlled Release Society
影响因子:
--
作者:
Merkel TJ;Chen K;Jones SW;Pandya AA;Tian S;Napier ME;Zamboni WE;DeSimone JM
通讯作者:
DeSimone JM
影响因子:
5.5
作者:
Kanamori, Kazuyoshi;Hasegawa, Joji;Hanada, Tefichi
通讯作者:
Hanada, Tefichi