Journal
ANALYTICAL BIOCHEMISTRY
Volume 439, Issue 1, Pages 1-3Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2013.03.036
Keywords
Safranine; Spectroelectrochemistry; Reduction potential; 3D printing
Funding
- Air Force Office of Scientific Research [FA9550-10-1-0350]
- Center for Exploitation of Nanostructures in Sensor and Energy Systems (CENSES) under NSF [0833180]
- Division Of Human Resource Development
- Direct For Education and Human Resources [833180] Funding Source: National Science Foundation
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We have used three-dimensional (3D) printing technology to create an inexpensive spectroelectrochemical cell insert that fits inside a standard cuvette and can be used with any transmission spectrometer. The cell positions the working, counter, and reference electrodes and has an interior volume of approximately 200 mu l while simultaneously providing a full 1-cm path length for spectroscopic measurements. This method reduces the time required to perform a potentiometric titration on a molecule compared with standard chemical titration methods and achieves complete electrolysis of protein samples within minutes. Thus, the device combines the best aspects of thin-layer cells and standard potentiometry. (C) 2013 Elsevier Inc. All rights reserved.
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