title: Use of Raman optical tweezers for cell cycle analysis.
abstract: We report the results of our investigations on the use of Raman optical tweezers for label free analysis of cells in different phases of their cell cycle. The studies performed on human colon adenocarcinoma (Colo-205) cells synchronized in G0/G1 and G2/M phases showed that the DNA Raman band at 783 cm(-1) in the Raman spectra of optically trapped cells can provide information about the DNA content in the nucleus of the cell without the need for the isolation of the nucleus. The histograms of intensity of this band among the cell populations were found to corroborate the results obtained from fluorescence image cytometry performed on DAPI stained cells.
authors.affiliation: Laser Biomedical Applications and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India. rsunita@rrcat.gov.in.
authors.forename: Sunita
authors.initials: S
authors.lastname: Ahlawat
authors.affiliation: Laser Biomedical Applications and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India. rsunita@rrcat.gov.in.
authors.forename: Aniket
authors.initials: A
authors.lastname: Chowdhury
authors.affiliation: Laser Biomedical Applications and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India. rsunita@rrcat.gov.in.
authors.forename: Abha
authors.initials: A
authors.lastname: Uppal
authors.affiliation: Laser Biomedical Applications and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India. rsunita@rrcat.gov.in.
authors.forename: Nitin
authors.initials: N
authors.lastname: Kumar
authors.affiliation: Laser Biomedical Applications and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India. rsunita@rrcat.gov.in.
authors.forename: Pradeep Kumar
authors.initials: PK
authors.lastname: Gupta
mesh_terms: D002453:Cell Cycle; D045744:Cell Line, Tumor; D006801:Humans; D008856:Microscopy, Fluorescence; D052898:Optical Tweezers