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Jeffrey Penfold

D-Index & Metrics

Chemistry

D-Index
82
Citations
23740
World Ranking
3095
National Ranking
173

Jeffrey Penfold publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Jeffrey Penfold sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 409 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Jeffrey Penfold D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Jeffrey Penfold sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 82 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Jeffrey Penfold is affiliated with the Rutherford Appleton Laboratory in the United Kingdom. Their research focuses primarily on the field of Chemistry, with a significant contribution to Organic Chemistry, Molecular Biology, Physical and Theoretical Chemistry, Atomic and Molecular Physics and Optics, and Spectroscopy.

The main topics addressed in their work include Surfactants and Colloidal Systems, Spectroscopy and Quantum Chemical Studies, Natural Product Bioactivities and Synthesis, Electrostatics and Colloid Interactions, Analytical Chemistry and Chromatography, Pharmacological Effects of Natural Compounds, and Proteins in Food Systems.

Jeffrey Penfold has published extensively in several scientific journals. The most frequent publication venues include:

  • Journal of Colloid and Interface Science
  • Langmuir
  • Colloids and Surfaces A Physicochemical and Engineering Aspects
  • The Journal of Physical Chemistry B
  • Journal of Molecular Liquids

Their recent papers include:

  • "Adsorption and self-assembly properties of the plant based biosurfactant, Glycyrrhizic acid" (2021), Journal of Colloid and Interface Science
  • "Surfactant/biosurfactant mixing: Adsorption of saponin/nonionic surfactant mixtures at the air-water interface" (2020), Journal of Colloid and Interface Science
  • "Self-assembly in saponin mixtures: Escin/tea, tea/glycyrrhizic acid, and escin/glycyrrhizic acid mixtures" (2021), Colloids and Surfaces A Physicochemical and Engineering Aspects
  • "Mixing Natural and Synthetic Surfactants: Co-Adsorption of Triterpenoid Saponins and Sodium Dodecyl Sulfate at the Air-Water Interface" (2020), Langmuir
  • "Counterion Condensation, the Gibbs Equation, and Surfactant Binding: An Integrated Description of the Behavior of Polyelectrolytes and Their Mixtures with Surfactants at the Air-Water Interface" (2020), The Journal of Physical Chemistry B

Jeffrey Penfold frequently collaborates with other scientists. Notable coauthors include:

  • Robert K. Thomas (17 publications)
  • Peixun Li (11 publications)
  • I. Tucker (6 publications)
  • A. Burley (6 publications)
  • R.E. Petkova (6 publications)

Best Publications

  • An analytic structure factor for macroion solutions

    John B. Hayter;Jeff Penfold

  • The application of the specular reflection of neutrons to the study of surfaces and interfaces

    J Penfold;R K Thomas

  • Determination of micelle structure and charge by neutron small-angle scattering

    J. B. Hayter;J. Penfold

  • Polymer/surfactant interactions at the air/water interface

    D.J.F. Taylor;R.K. Thomas;J. Penfold

  • Surfactant layers at the air/water interface: structure and composition.

    J.R. Lu;R.K. Thomas;J. Penfold

  • Recent advances in the study of chemical surfaces and interfaces by specular neutron reflection

    J. Penfold;R. M. Richardson;A. Zarbakhsh;J. R. P. Webster

  • Self-consistent structural and dynamic study of concentrated micelle solutions

    John B. Hayter;Jeff Penfold

  • SANS at Pulsed Neutron Sources: Present and Future Prospects

    R. K. Heenan;J. Penfold;S. M. King

  • Adsorption of Dodecyl Sulfate Surfactants with Monovalent Metal Counterions at the Air-Water Interface Studied by Neutron Reflection and Surface Tension

    Jian Ren Lu;Adrian Marrocco;Tsueu Ju Su;Robert K. Thomas

  • Adsorption of Ionic Surfactants at the Air−Solution Interface

    Julian Eastoe;Sandrine Nave;Adrian Downer;Alison Paul

  • EVIDENCE FOR CAPILLARY WAVES AT IMMISCIBLE POLYMER/POLYMER INTERFACES

    Michele Sferrazza;C. Xiao;Ral A. L. Jones;Dg G. Bucknall

  • Determination of end-adsorbed polymer density profiles by neutron reflectometry

    J. B. Field;C. Toprakcioglu;R. C. Ball;H. B. Stanley

  • THE CONFORMATIONAL STRUCTURE OF BOVINE SERUM ALBUMIN LAYERS ADSORBED AT THE SILICA-WATER INTERFACE

    T. J. Su and;J.R. Lu;R. K. Thomas;Z. F. Cui

  • The Adsorption of Oppositely Charged Polyelectrolyte/Surfactant Mixtures: Neutron Reflection from Dodecyl Trimethylammonium Bromide and Sodium Poly(styrene sulfonate) at the Air/Water Interface

    D. J. F. Taylor;R. K. Thomas;J. Penfold

  • Structure of aqueous decyltrimethylammonium bromide solutions at the air water interface studied by the specular reflection of neutrons

    E. M. Lee;R. K. Thomas;J. Penfold;R. C. Ward

  • The Effect of Solution pH on the Structure of Lysozyme Layers Adsorbed at the Silica−Water Interface Studied by Neutron Reflection

    T. J. Su and;J. R. Lu;R. K. Thomas;Z. F. Cui

  • What Is So Special about Aerosol-OT? 1. Aqueous Systems†

    Sandrine Nave and;Julian Eastoe;Jeff Penfold

  • The Adsorption of Lysozyme at the Silica–Water Interface: A Neutron Reflection Study☆

    Tsueu Ju Su;Jian Ren Lu;Robert K. Thomas;Zhan Feng Cui

  • Adsorption of Oppositely Charged Polyelectrolyte/Surfactant Mixtures. Neutron Reflection from Alkyl Trimethylammonium Bromides and Sodium Poly(styrenesulfonate) at the Air/Water Interface: The Effect of Surfactant Chain Length

    D. J. F. Taylor;R. K. Thomas;P. X. Li;J. Penfold

  • Comparison of neutron reflection and surface tension measurements of the surface excess of tetradecyltrimethylammonium bromide layers at the air/water interface

    E. A. Simister;R. K. Thomas;J. Penfold;R. Aveyard

Frequent Co-Authors

Jian R. Lu
Jian R. Lu University of Manchester
Isabelle Grillo
Isabelle Grillo Rutherford Appleton Laboratory
Adrian R. Rennie
Adrian R. Rennie Uppsala University
Julian Eastoe
Julian Eastoe University of Bristol
Richard A. L. Jones
Richard A. L. Jones University of Manchester
Richard K. Heenan
Richard K. Heenan Rutherford Appleton Laboratory
Peter Schurtenberger
Peter Schurtenberger Lund University
Bernard P. Binks
Bernard P. Binks University of Hull
Norman J. Wagner
Norman J. Wagner University of Delaware
Kirk T. Korista
Kirk T. Korista Western Michigan University

External Links

Google Scholar page

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Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens up a variety of career opportunities beyond traditional laboratory roles. Many graduates explore specialized fields that combine chemistry with healthcare, forensic science, and psychology.

For those interested in healthcare, becoming a pharmacist is a popular path. Detailed guidance on the steps to enter this profession can be found in the how to become a pharmacist resource. Pharmacy careers blend chemistry knowledge with patient care, offering stability and growth.

Another intriguing career option is an autopsy technician. This role requires a solid foundation in biological and chemical sciences. The article on autopsy tech explains the education requirements, salary expectations, and future job outlook for this position.

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Best Scientists Citing Jeffrey Penfold

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Kabir-ud-Din

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