MICROFLUIDIC BUFFER EXCHANGE FOR INTERFERENCE-FREE MICRO/NANOPARTICLE CELL ENGINEERING

David Yeo, Christian Wiraja, Yingying Zhou, Huimin Tay, Chenjie Xu, Hanwei Hou*

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Cell labeling with active-ingredient-containing micro/nanoparticles (NPs) can enhance native therapeutic properties, enable bioimaging and control cell phenotype. Herein, we report an inertial microfluid-ics-based buffer exchange strategy to efficiently separate labeled cells from free NPs that inadvertently generate signals and impart transformative effects on neighboring non-target cells. We demonstrate restoration of inflammatory processes in the proximal microenvironment by removing free NPs loaded with anti-inflammatory steroids (dexamethasone) from engineered mesenchymal stem cells (MSCs). This single-step cell purification strategy enables high cell processing throughput (106 cells/min) and would be highly useful in large volume cell purification typically required in regenerative medicine.
Original languageEnglish
Title of host publication19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2015)
PublisherChemical and Biological Microsystems Society
Pages540-542
ISBN (Print)9780979806483, 9781510817876 (v.1)
Publication statusPublished - Oct 2015
Externally publishedYes
Event19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2015) - Gyeongju, Korea, Republic of
Duration: 25 Oct 201529 Oct 2015

Publication series

NameMicroTAS - International Conference on Miniaturized Systems for Chemistry and Life Sciences

Conference

Conference19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2015)
Abbreviated titleMicroTAS 2015
PlaceKorea, Republic of
CityGyeongju
Period25/10/1529/10/15

Research Keywords

  • Buffer exchange
  • Cell labeling
  • Nanoparticles

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