Jay Johnson

ORCID: 0000-0003-2497-5956
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About
Contact & Profiles
Research Areas
  • Analytical Chemistry and Chromatography
  • Microfluidic and Capillary Electrophoresis Applications
  • Mass Spectrometry Techniques and Applications
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Chromatography in Natural Products
  • Biosensors and Analytical Detection
  • Biosimilars and Bioanalytical Methods
  • Advanced Proteomics Techniques and Applications
  • Blood groups and transfusion
  • Protein purification and stability
  • Thyroid Disorders and Treatments
  • Monoclonal and Polyclonal Antibodies Research
  • Viral Infectious Diseases and Gene Expression in Insects
  • Lipid metabolism and biosynthesis
  • Pesticide Residue Analysis and Safety
  • Fatty Acid Research and Health
  • Eicosanoids and Hypertension Pharmacology
  • Chemical Reactions and Isotopes
  • Clinical Laboratory Practices and Quality Control

Pfizer (United States)
2021-2025

Waters (United States)
2014-2020

The 17

10.1080/17576180.2024.2347153 article EN Bioanalysis 2024-05-02

The 18th Workshop on Recent Issues in Bioanalysis (18th WRIB) took place San Antonio, TX, USA May 6-10, 2024. Over 1100 professionals representing pharma/biotech companies, CROs, and multiple regulatory agencies convened to actively discuss the most current topics of interest bioanalysis. WRIB included 3 Main Workshops 7 Specialized that together spanned 1 week allow an exhaustive thorough coverage all major issues bioanalysis biomarkers, immunogenicity, gene therapy, cell therapy...

10.1080/17576180.2025.2450194 article EN Bioanalysis 2025-01-25

A balanced omega-6/omega-3 polyunsaturated fatty acid (PUFA) ratio has been linked to health benefits and the prevention of many chronic diseases. Current dietary intervention studies with different sources omega-3 acids (omega-3) lack appropriate control diets carry other confounding factors derived from genetic environmental variability. In our study, we used fat-1 transgenic mouse model as a proxy for long-term supplementation determine, in well-controlled manner, molecular phenotype...

10.1371/journal.pone.0096221 article EN cc-by PLoS ONE 2014-04-23

The 16th Workshop on Recent Issues in Bioanalysis (16th WRIB) took place Atlanta, GA, USA September 26-30, 2022. Over 1000 professionals representing pharma/biotech companies, CROs, and multiple regulatory agencies convened to actively discuss the most current topics of interest bioanalysis. WRIB included 3 Main Workshops 7 Specialized that together spanned 1 week order allow exhaustive thorough coverage all major issues bioanalysis, biomarkers, immunogenicity, gene therapy, cell therapy...

10.4155/bio-2023-0167 article EN Bioanalysis 2023-08-01

The desire to reach ever-diminishing lower limits of quantification (LLOQ) probe changes in low abundance protein targets has led enormous progress sample preparation and liquid chromatography–tandem mass spectrometry (LC-MS/MS) instrumentation. To maximize signal reduce noise, many approaches have been employed, including specific immunoaffinity (IA) enrichment reducing the LC flow nanoflow (nLC) level; however, additional sensitivity gains may still be required. Recently, a technique...

10.1021/acs.analchem.3c04598 article EN cc-by Analytical Chemistry 2024-08-26

Increased pressure to obtain more, higher sensitivity data from less sample is especially critical for large peptides, whose already optimized LC-MS methods are heavily challenged by traditional ligand-binding assays.Critical bioanalytical assays were adapted integrated microscale LC reduce volumes while increasing sensitivity. Assays teriparatide, glucagon and human insulin five analogs transferred 2.1 mm analytical scale a 150 µm system. This resulted in 15-30 fold overall improvement...

10.4155/bio.15.15 article EN Bioanalysis 2015-04-01

In this paper, high throughput analysis with 3 minute, rapid gradient conditions is described using the ionKey/MS™ System an integrated ACQUITY UPLC® M-Class and Xevo® G2-XS QTof Mass Spectrometer. Extensive testing of representative small molecules a peptide shows that system well-tolerated exhibits excellent reproducibility linear response. The iKey™ HSS T3 Separation Device used robust, withstanding ~2200 injections prepared human plasma peak shape pressure profile. A 99% solvent savings...

10.17145/jab.15.021 article EN Journal of Applied Bioanalysis 2015-10-15

Quantitative modeling is increasingly utilized in the drug discovery and development process, from initial stages of target selection, through clinical studies. The can provide guidance on three major questions-is this right target, what are compound properties, dose for moving best possible candidate forward. In manuscript, we present a site-of-action framework which apply to monoclonal antibodies against soluble targets. We give comprehensive overview how construct model parametrize it...

10.3389/fbinf.2021.731340 article EN cc-by Frontiers in Bioinformatics 2021-09-03
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