PMID- 34468120 OWN - NLM STAT- MEDLINE DCOM- 20210920 LR - 20220716 IS - 2373-9878 (Electronic) IS - 2373-9878 (Linking) VI - 7 IP - 9 DP - 2021 Sep 13 TI - Remote-Controlled 3D Porous Magnetic Interface toward High-Throughput Dynamic 3D Cell Culture. PG - 4535-4544 LID - 10.1021/acsbiomaterials.1c00459 [doi] AB - Mechanical stimuli have been shown to play a large role in cellular behavior, including cellular growth, differentiation, morphology, homeostasis, and disease. Therefore, developing bioreactor systems that can create complex mechanical environments for both tissue engineering and disease modeling drug screening is appealing. However, many of existing systems are restricted because of their bulky size with external force generators, destructive microenvironment control, and low throughput. These shortcomings have preceded to the utilization of magnetic stimuli responsive materials, given their untethered, fast, and tunable actuation potential at both the microscale and macroscale level, for seamless integration into cell culture wells and microfluidic systems. Nevertheless, magnetic soft materials for cell culture have been limited due to the inability to develop well-defined 3D structures for more complex and physiological relevant mechanical actuation. Herein, we introduce a facile fabrication process to develop magnetic-PDMS (polydimethylsiloxane) porous composite designs with both well-defined and controllable microlevel and macrolevel features to dynamically manipulate 3D cell-laden gel at the scale. The intrinsic stiffness of the magnetic-PDMS porous composites is also modulated to control the deformation potential to mimic physiological relevant strain levels, with 2.89-11% observed in magnetic actuation studies. High cell viability was achieved with the culturing of both human adipose stem cells (hADMSCs) and human umbilical cord mesenchymal stem cells (hUCMSCs) in 3D cell-laden gel interfaced with the magnetic-PDMS porous composite. Also, the highly interconnected porous network of the magnetic-PDMS composites facilitated free diffusion throughout the porous structure showcasing the potential of a multisurface contact 3D porous magnetic structure in both reservoir and 96-well plate insert designs for more complex dynamic mechanical actuation. In conclusion, these studies provide a means for establishing a biocompatible, tunable magnetic-PDMS porous composite with fast and programmable dynamic strain potential making it a suitable platform for high-throughput, dynamic 3D cell culture. FAU - Stottlemire, Bryce J AU - Stottlemire BJ AD - Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States. FAU - Chakravarti, Aparna R AU - Chakravarti AR AD - Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States. FAU - Whitlow, Jonathan W AU - Whitlow JW AD - Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States. FAU - Berkland, Cory J AU - Berkland CJ AUID- ORCID: 0000-0002-9346-938X AD - Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States. AD - Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045, United States. FAU - He, Mei AU - He M AUID- ORCID: 0000-0001-5316-9326 AD - Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States. AD - Department of Pharmaceutics, University of Florida, Gainesville, Florida 32608, United States. LA - eng GR - R35 GM133794/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20210901 PL - United States TA - ACS Biomater Sci Eng JT - ACS biomaterials science & engineering JID - 101654670 SB - IM MH - *Cell Culture Techniques MH - Cell Survival MH - Humans MH - Magnetic Phenomena MH - Porosity MH - *Tissue Engineering PMC - PMC9217666 MID - NIHMS1809122 OTO - NOTNLM OT - 3D dynamic cell culture OT - high-throughput OT - magnetic responsive materials OT - remote actuation OT - stem cells OT - tissue engineering EDAT- 2021/09/02 06:00 MHDA- 2021/09/21 06:00 PMCR- 2022/06/23 CRDT- 2021/09/01 12:14 PHST- 2021/09/02 06:00 [pubmed] PHST- 2021/09/21 06:00 [medline] PHST- 2021/09/01 12:14 [entrez] PHST- 2022/06/23 00:00 [pmc-release] AID - 10.1021/acsbiomaterials.1c00459 [doi] PST - ppublish SO - ACS Biomater Sci Eng. 2021 Sep 13;7(9):4535-4544. doi: 10.1021/acsbiomaterials.1c00459. Epub 2021 Sep 1.