Apr
18

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

Katherine L. Parent gave a presentation to the University of Arizona Chemistry and Biochemistry Department on April 16th, 2015, detailing some of her work in Electrochemical investigation of dopamine dynamics in rodent models for the BCP Journal Club.

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Mar
15

News: Heien Lab Attends Pittcon 2015 in New Orleans, LA March 8 – 12

Richard F. Vreeland presented a talk on his work titled “Integrated Injection-Molded Microchips for Stimulation and Measurement of Exocytosis from Single PC-12 Cells Using a Polymer Microelectrode”.

rich

Katherine L. Parent presented a talk on her work titled “Anesthetics differentially affect dopamine dynamics”.

kate

Adam R. Meier  presented a talk on his work titled “Fast-scan cyclic voltammetry of neurotransmitters at conductive polymer electrodes”.

adam

 

Catherine L. Kramer presented a talk on her work titled “Analysis of Neurotransmitters in GFP-Expressing Dopaminergic Neurons in Primary Cell Cultures from Drosophila Melanogaster Using Amperometry and MALDI-MS”.
cat

Oct
17

News: Katherine L. Parent presents talk at the UA BCP/DDD Retreat and wins award

Katherine L. Parent gave a presentation to the University of Arizona BCP/DDD Retreat on October 17, 2014, 2013, detailing some of her work in chemical resolution of dopamine by differential adsorption at carbon-fiber electrodes. Katherine’s talk was selected as this year’sBest Presentation. Congratulations Kate!

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Mar
07

News: Heien Lab presents at the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy

The Heien Lab traveled to Chicago, IL  for the 2014 Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy. Christopher W. Atcherley, Nicholas D. Laude, Richard F. Vreeland, Katherine L. Parent, and Catherine L. Kramer gave 20-minute oral presentations.  Adam R. Meier and Levi B. Lazarus gave poster presentations.

Pittcon_TM_HZ_CMYK

Pittcon 2014

 

Dr. Michael Heien also spoke at a symposium arranged by Dr. Parastoo Hashemi from Wayne State University.

Heienpittcon

Jan
14

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

Nov
18

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

Aug
06

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

Jul
30

News: Catherine L. Kramer awarded Research Assistant position at University of Arizona

Catherine L. Kramer has been awarded with a Research Assistant position at University of Arizona’s Mass Spectrometry Facility for the duration of the 2013-2014 academic year. Catherine will be running samples on various mass spectrometers and learning to diagnose and fix problems that arise with instruments. Congratulations Cat!

 

Jun
18

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

Jun
11

News: Drs. Eric B. Monroe and Michael L. Heien Travel to ASMS for Presentation

Dr. Eric B. Monroe and Dr. Michael L. Heien gave a poster presentation to the American Society for Mass Spectrometry on June11th, 2013, in Minneapolis, MS, detailing some of their work in Electrochemical Generation of Hydroxyl Radicals for Hydroxyl Radical Footprinting Experiments.

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