PMID- 36085603 OWN - NLM STAT- MEDLINE DCOM- 20220913 LR - 20221011 IS - 2694-0604 (Electronic) IS - 2375-7477 (Linking) VI - 2022 DP - 2022 Jul TI - Optical Deformation of Biological Cells using Dual-Beam Laser Tweezer. PG - 17-20 LID - 10.1109/EMBC48229.2022.9871373 [doi] AB - Optical tweezer is a non-contact tool to trap and manipulate microparticles such as biological cells using coherent light beams. In this study, we utilized a dual-beam optical tweezer, created using two counterpropagating and slightly divergent laser beams to trap and deform biological cells. Human embryonic kidney 293 (HEK-293) and breast cancer (SKBR3) cells were used to characterize their membrane elasticity by optically stretching in the dual-beam optical tweezer. It was observed that the extent of deformation in both cell types increases with increasing optical trapping power. The SKBR3 cells exhibited greater percentage deformation than that of HEK-293 cells for a given trapping power. Our results demonstrate that the dual-beam optical tweezer provides measures of cell elasticity that can distinguish between various cell types. The non-contact optical cell stretching can be effectively utilized in disease diagnosis such as cancer based on the cell elasticity measures. FAU - Bett, Festus AU - Bett F FAU - Brown, Sofia AU - Brown S FAU - Dong, Aotuo AU - Dong A FAU - Christian, Monique AU - Christian M FAU - Ajala, Sunday AU - Ajala S FAU - Santiago, Kevin AU - Santiago K FAU - Albin, Sacharia AU - Albin S FAU - Marz, Aylin AU - Marz A FAU - Deo, Makarand AU - Deo M LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Annu Int Conf IEEE Eng Med Biol Soc JT - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference JID - 101763872 SB - IM MH - *Breast Neoplasms MH - Elasticity MH - Embryo, Mammalian MH - Female MH - HEK293 Cells MH - Humans MH - *Optical Tweezers EDAT- 2022/09/11 06:00 MHDA- 2022/09/14 06:00 CRDT- 2022/09/10 01:03 PHST- 2022/09/10 01:03 [entrez] PHST- 2022/09/11 06:00 [pubmed] PHST- 2022/09/14 06:00 [medline] AID - 10.1109/EMBC48229.2022.9871373 [doi] PST - ppublish SO - Annu Int Conf IEEE Eng Med Biol Soc. 2022 Jul;2022:17-20. doi: 10.1109/EMBC48229.2022.9871373.