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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Three-dimensional protein shape rendering in magnetized solution with Lambert—Beer law

HongYan Gu and WeiShan Chang  »View Author Affiliations


Applied Optics, Vol. 51, Issue 20, pp. 4827-4832 (2012)
http://dx.doi.org/10.1364/AO.51.004827


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Abstract

When monochromatic light passes through a homogeneous absorbing medium, the absorbance is proportional to the growth of concentration and thickness of the medium, which is the Lambert—Beer law. The shade selection of protein solution magnetized for a certain time from different angles makes different absorbance, which does not meet the Lambert—Beer law. Accordingly, we derive that the absorbance A is not only proportional to the concentration and thickness of the medium but also proportional to the light area SS of a certain direction. For the same protein solution, we can obtain the absorbance A of six directions and thus get six values for SS, the relative ratio of which will inevitably reveal plentiful information of the protein shape. The conformation of the protein can be easily drawn out by software (MATLAB 7.0.1). We have drawn out the molecular shape of lysozyme and bovine serum albumin. In brief, we have developed the Lambert—Beer law A=K·C·b·Ss and a new method of exploring protein spatial structure.

© 2012 Optical Society of America

OCIS Codes
(170.1420) Medical optics and biotechnology : Biology
(350.5730) Other areas of optics : Resolution

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 28, 2011
Revised Manuscript: January 4, 2012
Manuscript Accepted: May 21, 2012
Published: July 9, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Citation
HongYan Gu and WeiShan Chang, "Three-dimensional protein shape rendering in magnetized solution with Lambert—Beer law," Appl. Opt. 51, 4827-4832 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-51-20-4827

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