World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
41
Citations
7425
World Ranking
17703
National Ranking
4322

Research.com Recognitions

  • 2005 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Richard A. Keller was affiliated with Los Alamos National Laboratory in the United States. Their research spanned multiple disciplines within medicine and biochemistry, genetics, and molecular biology. Over the course of their career, they contributed significantly to studies in gut microbiota and health, asthma and respiratory diseases, and digestive system-related conditions.

Throughout their publication record, Keller frequently collaborated with several coauthors, including Hermann Bremer-Neto, Heliard Rodrigues dos Santos Caetano, Marcos Natal Rufino, Sophia de Castro Bremer, and Luiz Waldemar de Oliveira. These collaborations supported a broad investigation into topics such as inflammatory bowel disease, microscopic colitis, and chronic obstructive pulmonary disease (COPD) research.

The main venues where their work appeared included Concilium, Research Society and Development, Nutrition Reviews, Journal of Allergy and Clinical Immunology, and Veterinary World.

Some recent papers authored by Keller are:

  • Synbiotics improve clinical indicators of ulcerative colitis: systematic review with meta-analysis (2021, Nutrition Reviews)
  • Incidence rates of childhood asthma with recurrent exacerbations in the US Environmental influences on Child Health Outcomes (ECHO) program (2023, Journal of Allergy and Clinical Immunology)
  • Prebiotics mannan-oligosaccharides accelerate sexual maturity in rats: A randomized preclinical study (2021, Veterinary World)
  • Probiotics, prebiotics and symbiotics attenuate chronic effects of passive smoking on physiological and biochemical parameters in rats: A randomized and controlled study (2021, Research Society and Development)
  • Evaluation of the Escherichia coli population in the intestinal microbiota of rattus wistar submitted to secondhand smoke and supplemented with prebiotics (2020, bioRxiv, Cold Spring Harbor Laboratory)

Keller's research contributed primarily to subfields such as molecular biology, genetics, physiology, food science, and nutrition and dietetics. Their work frequently addressed the interactions between diet, intestinal microbiota, and respiratory or digestive health, reflecting a multidisciplinary approach to understanding chronic diseases.

In recognition of their scientific contributions, Richard A. Keller was named a Fellow of the American Association for the Advancement of Science (AAAS) in 2005.

Best Publications

  • Detection of single fluorescent molecules

    E. Brooks Shera;Newton K. Seitzinger;Lloyd M. Davis;Richard A. Keller

  • Alterations of Single Molecule Fluorescence Lifetimes in Near-Field Optical Microscopy

    W. Patrick Ambrose;Peter M. Goodwin;Richard A. Keller;John C. Martin

  • Single molecule fluorescence analysis in solution

    Richard A. Keller;W. Patrick Ambrose;Peter M. Goodwin;James H. Jett

  • Single molecule detection and photochemistry on a surface using near-field optical excitation.

    W.P. Ambrose;P.M. Goodwin;J.C. Martin;R.A. Keller

  • Galvanic detection of optical absorptions in a gas discharge

    R. B. Green;R. A. Keller;G. G. Luther;P. K. Schenck

  • Detection of single molecules of phycoerythrin in hydrodynamically focused flows by laser-induced fluorescence.

    Dinh Cong Nguyen;Richard A. Keller;James H. Jett;John C. Martin

  • Single Molecule Detection in Solution

    Christoph Zander;Jörg Enderlein;Richard A. Keller

  • Single molecule detection in solution : methods and applications

    Christoph Zander;Jorg Enderlein;Richard A. Keller

  • High-speed DNA sequencing: an approach based upon fluorescence detection of single molecules.

    J H Jett;R A Keller;J C Martin;B L Marrone

  • Laser-induced fluorescence of flowing samples as an approach to single-molecule detection in liquids.

    Norman J. Dovichi;John C. Martin;James H. Jett;Mitchell. Trkula

  • THE PHOTOPHYSICAL CONSTANTS OF SEVERAL FLUORESCENT DYES PERTAINING TO ULTRASENSITIVE FLUORESCENCE SPECTROSCOPY

    Steve Allan Soper;Harvey L. Nutter;Richard A. Keller;Lloyd M. Davis

  • Method for rapid base sequencing in DNA and RNA with two base labeling

    James H. Jett;Richard A. Keller;John C. Martin;Richard G. Posner

  • Single-Molecule Detection in Liquids by Laser-Induced Fluorescence

    P.M. Goodwin;W.P. Ambrose;R.A. Keller

  • Detection and lifetime measurement of single molecules in flowing sample streams by laser‐induced fluorescence

    Charles W. Wilkerson;Peter M. Goodwin;W. Patrick Ambrose;John C. Martin

  • Determination of rate constants of reaction and lifetimes of singlet oxygen in solution by a flash photolysis technique

    Robert H. Young;David. Brewer;Richard A. Keller

  • SINGLE-MOLECULE DETECTION OF RHODAMINE 6G IN ETHANOLIC SOLUTIONS USING CONTINUOUS WAVE LASER EXCITATION

    Steve Allan Soper;E. Brooks Shera;John C. Martin;James H. Jett

  • Attogram detection limit for aqueous dye samples by laser-induced fluorescence

    Norman J. Dovichi;John C. Martin;James H. Jett;Richard A. Keller

  • Ring Puckering in Five‐Membered Rings. I. General Theory

    David O. Harris;Gail G. Engerholm;Chadwick A. Tolman;Alan C. Luntz

  • Enhancement of Absorption Spectra by Dye-Laser Quenching*

    Unknown

  • Fluorescence photon antibunching from single molecules on a surface

    W Patrick Ambrose;Peter M Goodwin;Jörg Enderlein;David J Semin

  • Laser induced impedance changes in a neon hollow cathode discharge. A mechanistic study

    E. F. Zalewski;R. A. Keller;R. Engleman

  • Characterization of DNA Size Determination of Small Fragments by Flow Cytometry

    Jeffrey T. Petty;Mitchell E. Johnson;Peter M. Goodwin;John C. Martin

  • Analysis of fluorescence lifetime data for single rhodamine molecules in flowing sample streams

    Joel. Tellinghuisen;Peter M. Goodwin;W. Patrick. Ambrose;John C. Martin

  • Application of Single Molecule Detection to Dna Sequencing

    Peter M. Goodwin;Hong Cai;James H. Jett;Susan L. Ishaug-Riley

Frequent Co-Authors

Jörg Enderlein
Jörg Enderlein University of Göttingen
James N. Demas
James N. Demas University of Virginia
Steven A. Soper
Steven A. Soper University of Kansas
Lawrence R. Pratt
Lawrence R. Pratt Tulane University
Norman J. Dovichi
Norman J. Dovichi University of Notre Dame
Larry A. Sklar
Larry A. Sklar University of New Mexico
Ming C. Wu
Ming C. Wu University of California, Berkeley
Michael W. Berns
Michael W. Berns University of California, Irvine
Joel R. Wendt
Joel R. Wendt Sandia National Laboratories
Robert K. Moyzis
Robert K. Moyzis University of California, Irvine

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