Detection of picomolar concentrations of lead in water using albumin-based fluorescence sensor. Academic Article

abstract

• Comprehensive analysis of fluorescence of albumin shows a weak fluorescence band at 430 nm, whose intensity exhibits a remarkable sensitivity to the presence of heavy ions in water. Using this fluorescence as a marker, as low as 10 pM concentration of lead can be routinely detected. Such a great sensitivity is explained in terms of electrostatic interactions in solution, which promote protein agglomeration. The latter is independently confirmed using dynamic light scattering measurements.

authors

• Yakovlev, Vladislav

published proceedings

• Appl Phys Lett

author list (cited authors)

• Saha, A., & Yakovlev, V. V.

citation count

• 7

complete list of authors

• Saha, Anushree||Yakovlev, Vladislav V

publication date

• October 2009

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

keywords

• 0299 Other Physical Sciences

PubMed Central ID

• 19902002

Digital Object Identifier (DOI)

• 10.1063/1.3246792

start page

• 143704

end page

• 143704

volume

• 95

issue

• 14

URL

• http%3A%2F%2Fdx.doi.org%2F10.1063%2F1.3246792