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D-Index & Metrics

Biology and Biochemistry

D-Index
77
Citations
32801
World Ranking
4686
National Ranking
351

Roger Marchant publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Roger Marchant sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 280 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Roger Marchant D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Roger Marchant sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 77 D-Index — 76th percentile

76% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Roger Marchant is a researcher affiliated with the University of Ulster in the United Kingdom. Their work spans several domains primarily within Environmental Science and Biochemistry, Genetics and Molecular Biology. The research focus includes subfields such as Pollution, Molecular Biology, Biotechnology, Health, Toxicology and Mutagenesis, and Ecology.

The core topics addressed in their research cover a range of microbial and biochemical processes including:

  • Microbial bioremediation and biosurfactants
  • Cancer Research and Treatments
  • Bacterial biofilms and quorum sensing
  • Microbial Community Ecology and Physiology
  • Toxic Organic Pollutants Impact
  • Chemical Reactions and Isotopes
  • Microbial Metabolic Engineering and Bioproduction

Roger Marchant has published multiple recent papers, highlighting work on microbial biosurfactants and their applications to both skincare and cancer research. Key papers include:

  • Microbial Biosurfactants in Cosmetic and Personal Skincare Pharmaceutical Formulations (2020, Pharmaceutics)
  • Microbial biosurfactant research: time to improve the rigour in the reporting of synthesis, functional characterization and process development (2020, Microbial Biotechnology)
  • Characterisation of cytotoxicity and immunomodulatory effects of glycolipid biosurfactants on human keratinocytes (2022, Applied Microbiology and Biotechnology)
  • Biosurfactants as Anticancer Agents: Glycolipids Affect Skin Cells in a Differential Manner Dependent on Chemical Structure (2022, Pharmaceutics)
  • Mono-Rhamnolipid Biosurfactants Synthesized by Pseudomonas aeruginosa Detrimentally Affect Colorectal Cancer Cells (2022, Pharmaceutics)

These publications reflect an emphasis on how biosurfactants interact with human cells, particularly in cancer research and skin health contexts.

Frequent collaborators in Roger Marchant's work include İbrahim M. Banat, Matthew S. Twigg, Simms A. Adu, Patrick Naughton, and Niki Baccile. Such collaborations suggest a network of researchers working on microbial biotechnology and related fields.

The researcher often publishes in journals focused on applied microbiology and pharmaceutical sciences, with primary venues including:

  • Pharmaceutics
  • Applied Microbiology and Biotechnology
  • Microbial Biotechnology
  • Molecules
  • Frontiers in Marine Science

Best Publications

  • Remediation of dyes in textile effluent: a critical review on current treatment technologies with a proposed alternative

    T Robinson;Geoff McMullan;Roger Marchant;Poonam Singh Nee Nigam

  • Microbial decolorization of textile-dye-containing effluents A review

    Ibrahim M. Banat;Poonam Nigam;Datel Singh;Roger Marchant

  • Microbial biosurfactants production, applications and future potential

    Ibrahim M. Banat;Andrea Franzetti;Isabella Gandolfi;Giuseppina Bestetti

  • Microbial decolourisation and degradation of textile dyes

    Geoffrey McMullan;C Meehan;A Conneely;N Kirby

  • Physical removal of textile dyes from effluents and solid-state fermentation of dye-adsorbed agricultural residues

    P Nigam;G Armour;I.M Banat;D Singh

  • Immobilization technologies and support materials suitable in alcohol beverages production: a review

    Y Kourkoutas;A Bekatorou;Ibrahim Banat;Roger Marchant

  • A response surface approach for the comparison of lipase production by Candida cylindracea using two different carbon sources

    RV Muralidhar;RR Chirumamila;R Marchant;Poonam Singh Nee Nigam

  • Resazurin-based 96-well plate microdilution method for the determination of minimum inhibitory concentration of biosurfactants

    Mohamed Elshikh;Syed Ahmed;Scott Funston;Paul Dunlop

  • Microbial process for the decolorization of textile effluent containing azo, diazo and reactive dyes

    Poonam Nigam;Ibrahim M. Banat;Dalel Singh;Roger Marchant

  • Enhanced bioremediation of n-alkane in petroleum sludge using bacterial consortium amended with rhamnolipid and micronutrients

    K.S.M. Rahman;Thahira J. Rahman;Y. Kourkoutas;I. Petsas

  • Microbial biosurfactants: challenges and opportunities for future exploitation.

    Roger Marchant;Ibrahim M. Banat

  • Biosurfactants: a sustainable replacement for chemical surfactants?

    Roger Marchant;Ibrahim M. Banat

  • Rhamnolipid biosurfactant production by strains of Pseudomonas aeruginosa using low-cost raw materials.

    K. S. M. Rahman;Thahira J. Rahman;Stephen McClean;Roger Marchant

  • Ethanol production at elevated temperatures and alcohol concentrations: Part I - Yeasts in general

    Ibrahim Banat;Poonam Singh Nee Nigam;D Singh;Roger Marchant

  • Membrane systems associated with the plasmalemma of plant cells.

    R. Marchant;A. W. Robards

  • Microbial biosurfactants: current trends and applications in agricultural and biomedical industries.

    Patrick Naughton;R Marchant;V Naughton;Ibrahim Banat

  • Effect of environmental conditions on biological decolorization of textile dyestuff by C. versicolor.

    Ilgi Karapinar Kapdan;Fikret Kargia;Geoffrey McMullan;Roger Marchant

  • Isolation of thermotolerant, fermentative yeasts growing at 52°C and producing ethanol at 45°C and 50°C

    Ibrahim Banat;Poonam Singh Nee Nigam;R Marchant

  • Decolourisation of synthetic textile dyes by Phlebia tremellosa.

    Niamh Kirby;Roger Marchant;Geoffrey McMullan

  • Natural quorum sensing inhibitors effectively downregulate gene expression of Pseudomonas aeruginosa virulence factors

    Syed A. K. S. Ahmed;Michelle Rudden;Thomas J. Smyth;James S. G. Dooley

Frequent Co-Authors

Ibrahim M. Banat
Ibrahim M. Banat University of Ulster
Poonam Singh Nee Nigam
Poonam Singh Nee Nigam University of Ulster
Yiannis Kourkoutas
Yiannis Kourkoutas Democritus University of Thrace
Maria Kanellaki
Maria Kanellaki University of Patras
Jeffrey Penfold
Jeffrey Penfold Rutherford Appleton Laboratory
Isabelle Grillo
Isabelle Grillo Rutherford Appleton Laboratory
Andrea Franzetti
Andrea Franzetti University of Milano-Bicocca
Wim Soetaert
Wim Soetaert Ghent University
Spyros G. Pavlostathis
Spyros G. Pavlostathis Georgia Institute of Technology
Florence Babonneau
Florence Babonneau Sorbonne University

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