Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 22, Issue 1, Pages 121-129Publisher
WILEY-BLACKWELL
DOI: 10.1002/adfm.201101690
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Funding
- NIH [DP1 OD000798]
- Washington University in St. Louis
- NSF [ECS-0335765]
- Alafi Neuroimaging Laboratory
- Hope Center for Neurological Disorders
- NIH Neuroscience Blueprint Center Core [P30 NS057105]
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Embryoid bodies (EBs) are aggregates of cells derived from embryonic stem (ES) cells, which can serve as a good model system to investigate molecular and cellular interactions in the earliest stages of embryo development. Current methods for producing EBs mainly rely on the use of hanging drops or suspensions in non-tissue culture treated plates, microwells, and spinner flasks. The capability of these methods is limited in terms of size uniformity and distribution as well as scalability. Here, a new platform based on three-dimensional alginate inverse opal scaffolds with uniform pores is presented, where uniform EBs with controllable sizes could be produced in the pores and then recovered after disintegration of the scaffolds. The size of the EBs could be readily controlled by varying the culture time and/or by using scaffolds with different pore sizes. The EBs maintained their viability and undifferentiated state, and they were able to differentiate into specific lineages upon stimulation.
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