News: Heien Lab has paper accepted into Analytical Chemistry

Richard F. Vreeland, Nicholas D. Laude, Sean Lambert, and Dr. Michael L. Heien have published  a new peer-reviewed publication. The publication outlines a new technique our lab has developed to etch thin films of conductive polymers for the fabrication of microelectrodes. This technique is an alternative to reactive ion etching, and offers similar capability while only costing the user about $100 (for a microwave from Home Depot) and is entirely benchtop. The microwave etch is used to fabricate a microchip electrophoresis platform where neurotransmitters are separated and detected. The sensor is characterized and compared to more common materials like carbon. Congratulations!

DOI: 10.1021/ac403363a

http://pubs.acs.org/doi/abs/10.1021/ac403363a

News: Heien Lab has paper accepted into Analytical Chemistry

Christopher W. Atcherley, Nicholas D. Laude, Katherine L. Parent, and Dr. Michael L. Heien have published  a new peer-reviewed publication. The publication outlines a new technique our lab has developed to measure the tonic or “basal” concentration of dopamine in vivo. The technique exploits the strong adsorption interaction between dopamine and carbon fiber microelectrodes. Characterization and optimization of the technique is described. Congratulations!

DOI: 10.1021/la402686s

http://pubs.acs.org/doi/abs/10.1021/la402686s

News: Heien Lab has paper accepted into Analytical Chemistry

Christopher W. Atcherley, Richard F. Vreeland, Esther Sanchez-Gomez, Dr. Eric B. Monroe  and Dr. Michael L. Heien have published  a new peer-reviewed publication. The publication outlines the utility of  a zero-phase filter for fast scan cyclic voltammetry experiments to  avoid traditional filtering artifacts, as well as the filter’s utility in filtering amperometric data from PC12 cell exocytosis. The authors are also sharing their program on this website, in the software section. Congratulations!

DOI: 10.1021/ac402037k

http://pubs.acs.org/doi/full/10.1021/ac402037k

News: Heien Lab has paper accepted into Analytical Chemistry

Dr. Eric B. Monroe  and Dr. Michael L. Heien have published  a new peer-reviewed publication. The publication outlines the development of a novel method of electrochemically labeling proteins to probe solution-phase protein structure and dynamics. The authors are the first to demonstrate the technique, and the method is vastly less expensive than alternative methods. Congratulations!

 

DOI: 10.1021/ac302169y

http://pubs.acs.org/doi/abs/10.1021/ac400107c

News: Christopher W. Atcherley presents in-vivo tonic and phasic measurements of dopamine

Christopher W. Atcherley gave a presentation to the University of Arizona Chemistry and Biochemistry Department on April 26th, 2013, detailing some of his work in Quantifying tonic and phasic neurotransmission with fast-scan cyclic voltammetry. Christopher was selected as this year’s David E. O’Brien Graduate Fellow, and will go on to present his work at a Gordon Conference later this year. Congratulations Chris!

Chris O'Brien Talk

News: Heien Lab has paper accepted into Analytical Chemistry

Nicholas LaudeChristopher W. Atcherley  and Dr. Michael L. Heien have published  a new peer-reviewed publication. The publication outlines the development and application of a real-time oversampling filter, allowing for better signal to noise ratio in sensitive measurements of all kinds. The authors are the first to demonstrate the utility in an analytical setting, and are offering the program for download in the Software section of the website. Congratulations!

 

DOI: 10.1021/ac302169y

http://pubs.acs.org/doi/abs/10.1021/ac302169y