We will utilize polymeric phospholipid membranes to prepare a new generation of biochemical separation matrices that exhibit marked improvements in selectivity, stability, reproducibility and tenability. We will focus on two primary objectives: design and implementation of a) membrane protein functionalized stationary phase materials and b) ion channel functionalized detectors for microchip separations. To achieve these goals, silica particles (ranging in diameter from 0.5 to 5

Public Health Relevance

This research project will develop and implement new, state-of-the-art technologies for biochemical separations, allowing for identification of novel pharmacological and physiological regulators of biological function. This research project will also provide key enabling technologies that lead to a more efficient elucidation of key biochemical and biophysical parameters for the design of next generation peptide-based drugs for treatment of a range of disease states.

National Institute of Health (NIH)
National Institute of General Medical Sciences (NIGMS)
Research Project (R01)
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Enabling Bioanalytical and Imaging Technologies Study Section (EBIT)
Program Officer
Edmonds, Charles G
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University of Arizona
Schools of Arts and Sciences
United States
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Ghosh, Surajit; Wang, Xuemin; Wang, Jinyan et al. (2018) Enhanced Fluorescent Protein Activity in Polymer Scaffold-Stabilized Phospholipid Nanoshells Using Neutral Redox Initiator Polymerization Conditions. ACS Omega 3:15890-15899
Gallagher, Elyssia S; Adem, Seid M; Baker, Christopher A et al. (2015) Highly stabilized, polymer-lipid membranes prepared on silica microparticles as stationary phases for capillary chromatography. J Chromatogr A 1385:28-34
Li, Zhen; Muhandiramlage, Thusitha P; Keogh, John P et al. (2015) Aptamer-functionalized porous phospholipid nanoshells for direct measurement of Hg(2+) in urine. Anal Bioanal Chem 407:953-60
Bright, Leonard K; Baker, Christopher A; Bränström, Robert et al. (2015) Methacrylate Polymer Scaffolding Enhances the Stability of Suspended Lipid Bilayers for Ion Channel Recordings and Biosensor Development. ACS Biomater Sci Eng 1:955-963
Baker, Christopher A; Aspinwall, Craig A (2015) Emerging trends in precision fabrication of microapertures to support suspended lipid membranes for sensors, sequencing, and beyond. Anal Bioanal Chem 407:647-52
Gallagher, Elyssia S; Mansfield, Elisabeth; Aspinwall, Craig A (2014) Stabilized phospholipid membranes in chromatography: toward membrane protein-functionalized stationary phases. Anal Bioanal Chem 406:2223-9
Johnson, Gail M; Chozinski, Tyler J; Gallagher, Elyssia S et al. (2014) Glutathione sulfinamide serves as a selective, endogenous biomarker for nitroxyl after exposure to therapeutic levels of donors. Free Radic Biol Med 76:299-307
Gallagher, Elyssia S; Adem, Seid M; Bright, Leonard K et al. (2014) Hybrid phospholipid bilayer coatings for separations of cationic proteins in capillary zone electrophoresis. Electrophoresis 35:1099-105
Cheng, Zhiliang; Al Zaki, Ajlan; Jones, Ian W et al. (2014) Stabilized porous liposomes with encapsulated Gd-labeled dextran as a highly efficient MRI contrast agent. Chem Commun (Camb) 50:2502-4
Zhou, Yi; Bright, Leonard K; Shi, Wenqing et al. (2014) Ion channel probes for scanning ion conductance microscopy. Langmuir 30:15351-5

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