J. Penfold

11.7k total citations · 1 hit paper
256 papers, 10.1k citations indexed

About

J. Penfold is a scholar working on Organic Chemistry, Atomic and Molecular Physics, and Optics and Physical and Theoretical Chemistry. According to data from OpenAlex, J. Penfold has authored 256 papers receiving a total of 10.1k indexed citations (citations by other indexed papers that have themselves been cited), including 171 papers in Organic Chemistry, 108 papers in Atomic and Molecular Physics, and Optics and 82 papers in Physical and Theoretical Chemistry. Recurrent topics in J. Penfold's work include Surfactants and Colloidal Systems (169 papers), Spectroscopy and Quantum Chemical Studies (90 papers) and Electrostatics and Colloid Interactions (73 papers). J. Penfold is often cited by papers focused on Surfactants and Colloidal Systems (169 papers), Spectroscopy and Quantum Chemical Studies (90 papers) and Electrostatics and Colloid Interactions (73 papers). J. Penfold collaborates with scholars based in United Kingdom, France and China. J. Penfold's co-authors include Robert K. Thomas, I. Tucker, Jian R. Lu, E. Staples, D. J. Taylor, Tao Su, Adrian R. Rennie, R. K. Thomas, Peixun Li and D. J. F. Taylor and has published in prestigious journals such as Nature, Science and Physical Review Letters.

In The Last Decade

J. Penfold

254 papers receiving 9.7k citations

Hit Papers

The application of the sp... 1990 2026 2002 2014 1990 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. The application of the specular reflection of neutrons to the study of surfaces and interfaces
    1990 509 citations J. Penfold, Robert K. Thomas profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
J. Penfold 6.0k 3.0k 2.5k 2.0k 1.9k 256 10.1k
Per Linse 3.9k 0.7× 2.9k 1.0× 4.4k 1.8× 3.2k 1.6× 1.4k 0.7× 221 10.7k
Robert K. Thomas 8.8k 1.5× 5.0k 1.7× 3.8k 1.6× 2.6k 1.3× 3.5k 1.9× 397 16.1k
H. Hoffmann 9.3k 1.6× 1.9k 0.6× 2.4k 1.0× 3.3k 1.7× 2.1k 1.1× 277 12.2k
J. Penfold 4.3k 0.7× 2.4k 0.8× 1.9k 0.8× 1.6k 0.8× 1.1k 0.6× 152 7.1k
Mats Almgren 8.2k 1.4× 2.2k 0.7× 3.1k 1.3× 2.2k 1.1× 3.8k 2.0× 199 11.8k
V. B. Fainerman 5.7k 1.0× 1.9k 0.6× 1.4k 0.6× 3.1k 1.5× 1.9k 1.0× 310 10.3k
Eric W. Kaler 8.1k 1.4× 2.2k 0.7× 2.2k 0.9× 4.3k 2.2× 3.1k 1.6× 169 13.7k
Bo Jönsson 2.3k 0.4× 2.3k 0.8× 2.8k 1.1× 1.9k 1.0× 1.1k 0.6× 110 8.2k
Håkan Wennerström 3.2k 0.5× 2.9k 1.0× 2.2k 0.9× 2.2k 1.1× 3.2k 1.7× 172 10.1k
Julian Eastoe 7.7k 1.3× 1.4k 0.5× 1.8k 0.7× 4.8k 2.4× 1.2k 0.6× 306 14.9k

Countries citing papers authored by J. Penfold

Since Specialization
Citations

This map shows the geographic impact of J. Penfold's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Penfold with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Penfold more than expected).

Fields of papers citing papers by J. Penfold

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Penfold. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Penfold. The network helps show where J. Penfold may publish in the future.

Co-authorship network of co-authors of J. Penfold

This figure shows the co-authorship network connecting the top 25 collaborators of J. Penfold. A scholar is included among the top collaborators of J. Penfold based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J. Penfold. J. Penfold is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Zhao, Xue, Bingbing Yuan, Linhua Song, et al.. (2024). Synthesis and interface behaviors of amino acid surfactants with naturally derived branched hydrophobic chains. Journal of Molecular Liquids. 398. 124328–124328. 8 indexed citations
2.
Penfold, J. & Robert K. Thomas. (2023). The adsorption and self-assembly of biosurfactants and biosurfactant / surfactant mixtures using neutron scattering techniques. Current Opinion in Colloid & Interface Science. 68. 101766–101766. 5 indexed citations
3.
Thomas, Robert K. & J. Penfold. (2023). The adsorption and self-assembly of surfactant mixtures: How the detailed evaluation of adsorption properties provides access to the bulk behaviour. Advances in Colloid and Interface Science. 319. 102984–102984. 5 indexed citations
4.
Tucker, I., R.E. Petkova, Sarah L. Hosking, et al.. (2021). Adsorption and self-assembly properties of the plant based biosurfactant, Glycyrrhizic acid. Journal of Colloid and Interface Science. 598. 444–454. 54 indexed citations
5.
Li, Peixun, Kun Ma, Yao Chen, et al.. (2019). The structure of alkyl ester sulfonate surfactant micelles: The impact of different valence electrolytes and surfactant structure on micelle growth. Journal of Colloid and Interface Science. 557. 124–134. 20 indexed citations
6.
7.
Penfold, J., et al.. (2017). Effects of length and hydrophilicity/hydrophobicity of diamines on self-assembly of diamine/SDS gemini-like surfactants. Soft Matter. 13(47). 8980–8989. 36 indexed citations
8.
Bradbury, Robert, et al.. (2015). Manipulating perfume delivery to the interface using polymer–surfactant interactions. Journal of Colloid and Interface Science. 466. 220–226. 23 indexed citations
9.
Penfold, J., Robert K. Thomas, & Peixun Li. (2015). Impact of biogenic amine molecular weight and structure on surfactant adsorption at the air–water interface. Journal of Colloid and Interface Science. 463. 199–206. 9 indexed citations
10.
Breward, Chris, Ian M. Griffiths, P. D. Howell, et al.. (2012). Kinetics of Surfactant Desorption at an Air-Solution Interface. Science and Technology Facilities Council. 25 indexed citations
11.
Penfold, J., Robert K. Thomas, Thomas J. Smyth, et al.. (2010). Solution Self-Assembly and Adsorption at the Air−Water Interface of the Monorhamnose and Dirhamnose Rhamnolipids and Their Mixtures. Langmuir. 26(23). 18281–18292. 95 indexed citations
12.
Smyth, Thomas J., Amedea Perfumo, Roger Marchant, et al.. (2010). Directed microbial biosynthesis of deuterated biosurfactants and potential future application to other bioactive molecules. Applied Microbiology and Biotechnology. 87(4). 1347–1354. 27 indexed citations
13.
Taylor, D. J., Robert K. Thomas, & J. Penfold. (2007). Polymer/surfactant interactions at the air/water interface. Advances in Colloid and Interface Science. 132(2). 69–110. 405 indexed citations
14.
Yaseen, Mohammed, Jian R. Lu, J. R. P. Webster, & J. Penfold. (2006). The Structure of Zwitterionic Phosphocholine Surfactant Monolayers. Langmuir. 22(13). 5825–5832. 80 indexed citations
15.
Briscoe, Wuge H., Meng Chen, Iain E. Dunlop, et al.. (2006). Applying grazing incidence X-ray reflectometry (XRR) to characterising nanofilms on mica. Journal of Colloid and Interface Science. 306(2). 459–463. 31 indexed citations
16.
Yaseen, Mohammed, Jian R. Lu, J. R. P. Webster, & J. Penfold. (2005). Adsorption of single chain Zwitterionic phosphocholine surfactants: Effects of length of alkyl chain and head group linker. Biophysical Chemistry. 117(3). 263–273. 28 indexed citations
17.
18.
Johnson, Sean, T. M. Bayerl, J. Penfold, et al.. (1991). Coupling of spectrin and polylysine to phospholipid monolayers studied by specular reflection of neutrons. Biophysical Journal. 60(5). 1017–1025. 42 indexed citations
19.
Böni, P., I. S. Anderson, Roland Hauert, et al.. (1990). Investigation and growth of multilayers. DORA Empa (Swiss Federal Laboratories for Materials Science and Technology (Empa)). 1 indexed citations
20.
Bayerl, T. M., Robert K. Thomas, J. Penfold, Adrian R. Rennie, & E. Sackmann. (1990). Specular reflection of neutrons at phospholipid monolayers. Changes of monolayer structure and headgroup hydration at the transition from the expanded to the condensed phase state. Biophysical Journal. 57(5). 1095–1098. 46 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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