title: Infrared microspectroscopy of individual human cervical cancer (HeLa) cells suspended in growth medium.
abstract: We report for the first time the infrared spectra of individual human cervical cancer (HeLa) cells suspended in buffer or cell culture medium. Although we did not establish whether these cells were viable at the time of spectral data acquisition, we believe that the methodology used is applicable to the study of live cells. Data were collected either from entire cells, using 25- to 40-microm apertures, or via an imaging approach, where pixels measuring 6.25 x 6.25 microm were assembled to form a map of a cell in suspension. Measurements were carried out both in reflection/absorption and in transmission modes. The results reported here might have far-reaching implications for the use of infrared microspectroscopy to monitor cell proliferation, drug response, and other cell biological parameters in live cells.
authors.affiliation: Department of Chemistry, Graduate School and University Center, City University of New York, 365 Fifth Avenue, New York, NY 10036, USA.
authors.forename: Milos
authors.initials: M
authors.lastname: Miljkovic
authors.forename: Melissa
authors.initials: M
authors.lastname: Romeo
authors.forename: Christian
authors.initials: C
authors.lastname: Matthäus
authors.forename: Max
authors.initials: M
authors.lastname: Diem
mesh_terms: D045744:Cell Line, Tumor; D003470:Culture Media / Q000494:pharmacology*; D006367:HeLa Cells; D006801:Humans; D013055:Spectrophotometry, Infrared / Q000379:methods*
chemical_list: D003470:Culture Media