Cell Imaging by Spontaneous and Amplified Raman Spectroscopies
Joint Authors
Rusciano, Giulia
Zito, Gianluigi
Pesce, Giuseppe
Sasso, Antonio
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Raman spectroscopy (RS) is a powerful, noninvasive optical technique able to detect vibrational modes of chemical bonds.
The high chemical specificity due to its fingerprinting character and the minimal requests for sample preparation have rendered it nowadays very popular in the analysis of biosystems for diagnostic purposes.
In this paper, we first discuss the main advantages of spontaneous RS by describing the study of a single protozoan (Acanthamoeba), which plays an important role in a severe ophthalmological disease (Acanthamoeba keratitis).
Later on, we point out that the weak signals that originated from Raman scattering do not allow probing optically thin samples, such as cellular membrane.
Experimental approaches able to overcome this drawback are based on the use of metallic nanostructures, which lead to a huge amplification of the Raman yields thanks to the excitation of localized surface plasmon resonances.
Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) are examples of such innovative techniques, in which metallic nanostructures are assembled on a flat surface or on the tip of a scanning probe microscope, respectively.
Herein, we provide a couple of examples (red blood cells and bacterial spores) aimed at studying cell membranes with these techniques.
American Psychological Association (APA)
Rusciano, Giulia& Zito, Gianluigi& Pesce, Giuseppe& Sasso, Antonio. 2017. Cell Imaging by Spontaneous and Amplified Raman Spectroscopies. Journal of Spectroscopy،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1187785
Modern Language Association (MLA)
Rusciano, Giulia…[et al.]. Cell Imaging by Spontaneous and Amplified Raman Spectroscopies. Journal of Spectroscopy No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1187785
American Medical Association (AMA)
Rusciano, Giulia& Zito, Gianluigi& Pesce, Giuseppe& Sasso, Antonio. Cell Imaging by Spontaneous and Amplified Raman Spectroscopies. Journal of Spectroscopy. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1187785
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1187785