Praveen KaliappanSekar

Mr. Praveen KaliappanSekar

University of Washington - Seattle
orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 November 2019 in Micromachines
Verified
Journal Article
Open access
PDF file
TYTianhang Yang
Tianhang Yang
JPJi Peng
Ji Peng
ZSZhiquan Shu
Zhiquan Shu
PKPraveen KaliappanSekar
Praveen KaliappanSekar
Songjing LiSongjing Li
Songjing Li
Dayong GaoDayong Gao
Dayong Gao
The Jurkat cell is an immortalized line of human acute lymphocyte leukemia cells that is widely used in the study of adoptive cell therapy, a novel treatment of several advanced forms of cancer. The ability to transport water and solutes across the cell membrane under different temperatures is an important factor for deciding the specific protocol for cryopreservation of the Jurkat cell. In this study we propose a comprehensive process for determination of membrane transport properties of Jurkat cell. using a novel microfluidic controlled single cell-trapping system. The osmotic behavior of an individual Jurkat cell to water and dimethyl sulfoxide (DMSO), a commonly used cryoprotective agent (CPA), under constant temperature, was recorded under a microscope utilizing the modified microfluidic system. The images of the Jurkat cell under osmotic change were processed to obtain a relationship between cell volume change and time. The experimental results were fitted using a two-parameter transport numeric model to calculate the Jurkat cell membrane permeability to water and DMSO at room temperature (22 °C). This model and the calculated parameters can help scientists optimize the cryopreservation protocol for any cell type with optimal cryoprotective agents and cooling rate for future experiments.

7 February 2018 in Cryobiology
Verified
Journal Article
Closed access
PKPraveen KaliappanSekar
Praveen KaliappanSekar
XLXin Liang
Xin Liang
DGDayong Gao
Dayong Gao