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Margaret Ahmad

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
12863
World Ranking
14912
National Ranking
6243

Margaret Ahmad 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 Margaret Ahmad 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: 79 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

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

Margaret Ahmad 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 Margaret Ahmad 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: 55 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Overview

Margaret Ahmad is affiliated with Xavier University in the United States and has contributed to various fields including Medicine, Biochemistry, Genetics and Molecular Biology, and Agricultural and Biological Sciences. Their research spans multiple subfields such as Plant Science, Physiology, Biophysics, Radiology, Nuclear Medicine and Imaging, and Pharmacology.

The scientist's work focuses on topics related to electromagnetic fields and biological effects, magnetic and electromagnetic effects, and light effects on plants. Additional research interests include biofield effects and biophysics, laser applications in dentistry and medicine, medical and biological ozone research, and plant molecular biology research.

Margaret Ahmad has authored papers published in diverse venues, reflecting interdisciplinary engagement. Frequent publication venues include:

  • Communicative & Integrative Biology
  • Physiologia Plantarum
  • Scientific Reports
  • Bioengineering
  • Nanomaterials

Recent significant papers include:

  • "A Review of the Current State of Magnetic Force Microscopy to Unravel the Magnetic Properties of Nanomaterials Applied in Biological Systems and Future Directions for Quantum Technologies" (2023, Nanomaterials)
  • "Cryptochrome mediated magnetic sensitivity in Arabidopsis occurs independently of light-induced electron transfer to the flavin" (2020, Photochemical & Photobiological Sciences)
  • "Effect of temperature on the Arabidopsis cryptochrome photocycle" (2021, Physiologia Plantarum)
  • "Arabidopsis cryptochrome is responsive to Radiofrequency (RF) electromagnetic fields" (2020, Scientific Reports)
  • "HEK293 cell response to static magnetic fields via the radical pair mechanism may explain therapeutic effects of pulsed electromagnetic fields" (2020, PLoS ONE)

Margaret Ahmad collaborates frequently with several researchers, among whom the most common co-authors are:

  • Marootpong Pooam
  • Blanche Aguida
  • Nathalie Jourdan
  • Soria Baouz
  • Mohamed A. El-Esawi

Best Publications

  • HY4 gene of A. thaliana encodes a protein with characteristics of a blue-light photoreceptor

    Margaret Ahmad;Anthony R. Cashmore

  • The Cryptochromes: Blue Light Photoreceptors in Plants and Animals

    Inês Chaves;Richard Pokorny;Martin Byrdin;Nathalie Hoang

  • Association of Flavin Adenine Dinucleotide with the Arabidopsis Blue Light Receptor CRY1

    Chentao Lin;D. E. Robertson;M. Ahmad;A. A. Raibekas

  • Cryptochrome blue light photoreceptors are activated through interconversion of flavin redox states

    Jean-Pierre Bouly;Erik Schleicher;Maribel Dionisio-Sese;Filip Vandenbussche;Filip Vandenbussche

  • The CRY1 Blue Light Photoreceptor of Arabidopsis Interacts with Phytochrome A In Vitro

    Margaret Ahmad;Jose A. Jarillo;Olga Smirnova;Anthony R. Cashmore

  • Magnetically sensitive light-induced reactions in cryptochrome are consistent with its proposed role as a magnetoreceptor

    Kiminori Maeda;Alexander J. Robinson;Kevin B. Henbest;Hannah J. Hogben

  • Light-induced electron transfer in a cryptochrome blue-light photoreceptor.

    Baldissera Giovani;Martin Byrdin;Margaret Ahmad;Margaret Ahmad;Klaus Brettel

  • The Signaling State of Arabidopsis Cryptochrome 2 Contains Flavin Semiquinone

    Roopa Banerjee;Erik Schleicher;Stefan Meier;Rafael Muñoz Viana

  • Mutations throughout an Arabidopsis blue-light photoreceptor impair blue-light-responsive anthocyanin accumulation and inhibition of hypocotyl elongation

    Margaret Ahmad;Chentao Lin;Anthony R. Cashmore

  • Arabidopsis cryptochrome 1 is a soluble protein mediating blue light-dependent regulation of plant growth and development

    Chentao Lin;Margaret Ahmad;Anthony R. Cashmore

  • Expression of an Arabidopsis cryptochrome gene in transgenic tobacco results in hypersensitivity to blue, UV-A, and green light.

    Chentao Lin;Margaret Ahmad;Donna Gordon;Anthony R. Cashmore

  • Cryptochrome mediates light-dependent magnetosensitivity of Drosophila's circadian clock.

    Taishi Yoshii;Margaret Ahmad;Charlotte Helfrich-Förster

  • Magnetic intensity affects cryptochrome-dependent responses in Arabidopsis thaliana

    Margaret Ahmad;Margaret Ahmad;Paul Galland;Thorsten Ritz;Roswitha Wiltschko

  • HY5 is a point of convergence between cryptochrome and cytokinin signalling pathways in Arabidopsis thaliana

    Filip Vandenbussche;Filip Vandenbussche;Yvette Habricot;Amanda S. Condiff;Amanda S. Condiff;Régis Maldiney

  • Action Spectrum for Cryptochrome-Dependent Hypocotyl Growth Inhibition in Arabidopsis

    Margaret Ahmad;Nicholas Grancher;Mary Heil;Robert C. Black

  • The blue-light receptor cryptochrome 1 shows functional dependence on phytochrome A or phytochrome B in Arabidopsis thaliana

    Margaret Ahmad;Anthony R. Cashmore

  • Cryptochrome blue-light photoreceptors of Arabidopsis implicated in phototropism

    Margaret Ahmad;Jose A. Jarillo;Olga Smirnova;Anthony R. Cashmore

  • Chimeric proteins between cry1 and cry2 Arabidopsis blue light photoreceptors indicate overlapping functions and varying protein stability.

    Margaret Ahmad;Jose A. Jarillo;Anthony R. Cashmore

  • Seeing blue: the discovery of cryptochrome.

    Margaret Ahmad;Anthony R. Cashmore

  • Light-induced Electron Transfer in Arabidopsis Cryptochrome-1 Correlates with in Vivo Function

    Anke Zeugner;Martin Byrdin;Jean-Pierre Bouly;Nadia Bakrim

Frequent Co-Authors

Mohamed A. El-Esawi
Mohamed A. El-Esawi Tanta University
Anthony R. Cashmore
Anthony R. Cashmore University of Pennsylvania
Robert Bittl
Robert Bittl Freie Universität Berlin
Chentao Lin
Chentao Lin University of California, Los Angeles
Alfred Batschauer
Alfred Batschauer Philipp University of Marburg
Klaus Brettel
Klaus Brettel University of Paris-Saclay
Jose A. Jarillo
Jose A. Jarillo Technical University of Madrid
Ute Hoecker
Ute Hoecker University of Cologne
Dominique Van Der Straeten
Dominique Van Der Straeten Ghent University
Charlotte Helfrich-Förster
Charlotte Helfrich-Förster University of Würzburg

External Links

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Best Scientists Citing Margaret Ahmad

Xing Wang Deng

Xing Wang Deng

Peking University

Publications: 62

P. J. Hore

P. J. Hore

University of Oxford

Publications: 58

Chentao Lin

Chentao Lin

University of California, Los Angeles

Publications: 54

Aziz Sancar

Aziz Sancar

University of North Carolina at Chapel Hill

Publications: 43

Mohamed A. El-Esawi

Mohamed A. El-Esawi

Tanta University

Publications: 42

Jorge J. Casal

Jorge J. Casal

University of Buenos Aires

Publications: 42

Stefan Weber

Stefan Weber

University of Freiburg

Publications: 33

Alfred Batschauer

Alfred Batschauer

Philipp University of Marburg

Publications: 30

Ferenc Nagy

Ferenc Nagy

Institute of Plant Biology

Publications: 28

Peter H. Quail

Peter H. Quail

University of California, Berkeley

Publications: 27

Christian Fankhauser

Christian Fankhauser

University of Lausanne

Publications: 26

Lars-Oliver Essen

Lars-Oliver Essen

Philipp University of Marburg

Publications: 26

Winslow R. Briggs

Winslow R. Briggs

Carnegie Institution for Science

Publications: 25

Joanne Chory

Joanne Chory

Salk Institute for Biological Studies

Publications: 25

Eberhard Schäfer

Eberhard Schäfer

University of Freiburg

Publications: 25

Masamitsu Wada

Masamitsu Wada

Kyushu University

Publications: 23

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