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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Biology and Biochemistry 57 13781 12679 1079 1003 139 12381

Julian K.-C. Ma publications per year

The chart shows the history of publications by Julian K.-C. Ma between 1987 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Julian K.-C. Ma published across 35 years, from 1987 to 2021, averaging 3.8 papers a year. Output peaked at 10 publications in 2011. 12 of the 132 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1987 to 2021. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2011. 1987: 1 publication 1988: 0 publications 1989: 1 publication 1990: 1 publication 1991: 3 publications 1992: 2 publications 1993: 1 publication 1994: 1 publication 1995: 3 publications 1996: 1 publication 1997: 0 publications 1998: 1 publication 1999: 4 publications 2000: 4 publications 2001: 3 publications 2002: 4 publications 2003: 5 publications 2004: 4 publications 2005: 9 publications 2006: 2 publications 2007: 2 publications 2008: 9 publications 2009: 5 publications 2010: 4 publications 2011: 10 publications 2012: 4 publications 2013: 7 publications 2014: 7 publications 2015: 4 publications 2016: 5 publications 2017: 5 publications 2018: 6 publications 2019: 2 publications 2020: 6 publications 2021: 6 publications
1987 2021

132 publications in total across all disciplines

View publications per year as a table
Julian K.-C. Ma: publications per year, 1987 to 2021
Year Publications
1987 1
1988 0
1989 1
1990 1
1991 3
1992 2
1993 1
1994 1
1995 3
1996 1
1997 0
1998 1
1999 4
2000 4
2001 3
2002 4
2003 5
2004 4
2005 9
2006 2
2007 2
2008 9
2009 5
2010 4
2011 10
2012 4
2013 7
2014 7
2015 4
2016 5
2017 5
2018 6
2019 2
2020 6
2021 6
Total 132
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Julian K.-C. Ma 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 Julian K.-C. Ma sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 100 bars. Horizontal axis: publications, 47–56 to 1,028+. Vertical axis: number of scientists, 0 to 980. Most scientists, 980, have 127–136 publications. The last bar groups every scientist with 1,028 publications or more. The highlighted bar, 137–146 publications, is where this scientist sits. 47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 413 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 848 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 949 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 840 scientists 207–216 publications: 733 scientists 217–226 publications: 708 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: 417 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: 196 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: 59 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 scientist 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientist 1,028+ publications: 100 scientists
47–56 publications 1,028+

This scientist: 139 publications — 21st percentile

21% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Biology and Biochemistry scientists by publication count, Research.com 2026 ranking edition. Based on 19,587 ranked scientists.
Publications Scientists This scientist
47–56 8
57–66 35
67–76 106
77–86 231
87–96 413
97–106 546
107–116 704
117–126 848
127–136 980
137–146 942 139
147–156 969
157–166 949
167–176 951
177–186 915
187–196 787
197–206 840
207–216 733
217–226 708
227–236 651
237–246 605
247–256 510
257–266 524
267–276 434
277–286 417
287–296 350
297–306 363
307–316 315
317–326 296
327–336 261
337–346 240
347–356 219
357–366 196
367–376 154
377–386 161
387–396 155
397–406 145
407–416 124
417–426 112
427–436 132
437–446 116
447–456 99
457–466 81
467–476 91
477–486 80
487–496 80
497–506 59
507–516 36
517–526 46
527–536 54
537–546 44
547–556 43
557–566 43
567–576 42
577–586 25
587–596 34
597–606 23
607–616 33
617–626 31
627–636 27
637–646 25
647–656 28
657–666 34
667–676 18
677–686 16
687–696 10
697–706 12
707–716 21
717–726 12
727–736 12
737–746 10
747–756 7
757–766 13
767–776 15
777–786 13
787–796 9
797–806 9
807–816 7
817–826 4
827–836 9
837–846 7
847–856 3
857–866 5
867–876 5
877–886 11
887–896 3
897–906 4
907–916 7
917–926 5
927–936 6
937–946 6
947–956 3
957–966 7
967–976 2
977–986 2
987–996 1
997–1,006 5
1,007–1,016 2
1,017–1,026 2
1,027 1
1,028+ 100
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Julian K.-C. Ma 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 Julian K.-C. Ma sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 65 bars. Horizontal axis: D-Index, 40–41 to 167+. Vertical axis: number of scientists, 0 to 1,253. Most scientists, 1,253, have 58–59 D-Index. The last bar groups every scientist with 167 D-Index or more. The highlighted bar, 56–57 D-Index, is where this scientist sits. 40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 316 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 899 scientists 52–53 D-Index: 1,025 scientists 54–55 D-Index: 1,149 scientists 56–57 D-Index: 1,235 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,162 scientists 62–63 D-Index: 1,130 scientists 64–65 D-Index: 1,031 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 714 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: 71 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
40–41 D-Index 167+

This scientist: 57 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Biology and Biochemistry scientists by D-index, Research.com 2026 ranking edition. Based on 19,587 ranked scientists.
D-Index Scientists This scientist
40–41 80
42–43 183
44–45 316
46–47 504
48–49 718
50–51 899
52–53 1,025
54–55 1,149
56–57 1,235 57
58–59 1,253
60–61 1,162
62–63 1,130
64–65 1,031
66–67 897
68–69 814
70–71 714
72–73 709
74–75 596
76–77 512
78–79 473
80–81 412
82–83 373
84–85 358
86–87 285
88–89 273
90–91 227
92–93 208
94–95 193
96–97 153
98–99 157
100–101 148
102–103 120
104–105 113
106–107 100
108–109 86
110–111 67
112–113 71
114–115 73
116–117 64
118–119 53
120–121 60
122–123 54
124–125 43
126–127 38
128–129 49
130–131 26
132–133 18
134–135 23
136–137 32
138–139 32
140–141 27
142–143 19
144–145 22
146–147 12
148–149 16
150–151 14
152–153 10
154–155 13
156–157 10
158–159 7
160–161 9
162–163 13
164–165 4
166 4
167+ 98
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Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Antibody
  • Enzyme

His main research concerns Antibody, Biotechnology, Plantibody, Monoclonal antibody and Streptococcus mutans. The various areas that he examines in his Antibody study include Virus, Ebola virus and Virology. He combines subjects such as Genetically modified crops and Marketing with his study of Biotechnology.

His Plantibody research is multidisciplinary, incorporating perspectives in Molecular biology and Recombinant DNA. The concepts of his Molecular biology study are interwoven with issues in Immunoglobulin light chain, Transgene and Immunoglobulin heavy chain. His Streptococcus mutans research includes elements of Immunology, Microbiology and Active immunization.

His most cited work include:

  • The production of recombinant pharmaceutical proteins in plants. (792 citations)
  • Generation and assembly of secretory antibodies in plants. (571 citations)
  • Characterization of a recombinant plant monoclonal secretory antibody and preventive immunotherapy in humans. (443 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Antibody, Monoclonal antibody, Virology, Recombinant DNA and Molecular biology. The study incorporates disciplines such as Nicotiana benthamiana, Antigen and Microbiology in addition to Antibody. His research investigates the connection with Monoclonal antibody and areas like Biochemistry which intersect with concerns in Immunoglobulin G.

He works mostly in the field of Virology, limiting it down to concerns involving Adjuvant and, occasionally, Immunogenicity. His Recombinant DNA research includes themes of Transgene and Glycoprotein. His study in Molecular biology is interdisciplinary in nature, drawing from both Immunoglobulin light chain, Affinity chromatography and Plantibody.

He most often published in these fields:

  • Antibody (44.88%)
  • Monoclonal antibody (32.28%)
  • Virology (24.41%)

What were the highlights of his more recent work (between 2016-2021)?

  • Antibody (44.88%)
  • Virology (24.41%)
  • Rabies virus (7.09%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Antibody, Virology, Rabies virus, Antigen and Monoclonal antibody. His Antibody research incorporates themes from Microbiology, Recombinant DNA, Fusion protein and Cell biology. He interconnects Defensin and Ectodomain in the investigation of issues within Recombinant DNA.

His Virology research incorporates elements of Griffithsin, Nicotiana tabacum and Bacteria. His Rabies virus study combines topics in areas such as Molecular biology, Glycoprotein and Affinity chromatography. His Monoclonal antibody research is multidisciplinary, incorporating elements of Receptor, Glycosylation and N-linked glycosylation.

Between 2016 and 2021, his most popular works were:

  • Potential Applications of Plant Biotechnology against SARS-CoV-2. (43 citations)
  • Synthetic gene design-The rationale for codon optimization and implications for molecular pharming in plants. (30 citations)
  • Recombinant biologic products versus nutraceuticals from plants - a regulatory choice? (18 citations)

In his most recent research, the most cited papers focused on:

  • Gene
  • Antibody
  • Enzyme

Julian K.-C. Ma spends much of his time researching Biotechnology, Antibody, Pharmaceutical manufacturing, Biologic Products and Nutraceutical. His Biotechnology research overlaps with other disciplines such as Sars virus, 2019-20 coronavirus outbreak, Research community, Pandemic and Severe acute respiratory syndrome coronavirus 2. His research integrates issues of Receptor and Biochemistry in his study of Antibody.

Julian K.-C. Ma connects Pharmaceutical manufacturing with Biochemical engineering in his research.

Best Publications

  • The production of recombinant pharmaceutical proteins in plants.

    Julian K-C. Ma;Pascal M. W. Drake;Paul Christou

  • Generation and assembly of secretory antibodies in plants.

    J. K.-C. Ma;A. Hiatt;M. Hein;N. D. Vine

  • Characterization of a recombinant plant monoclonal secretory antibody and preventive immunotherapy in humans.

    Julian K.-C. Ma;Ban Y. Hikmat;Keith Wycoff;Nicholas D. Vine

  • Sowing the seeds of success: pharmaceutical proteins from plants.

    Eva Stoger;Julian K.-C. Ma;Rainer Fischer;Paul Christou

  • Molecular farming for new drugs and vaccines. Current perspectives on the production of pharmaceuticals in transgenic plants

    Julian K C. Ma;Eugenia Barros;Ralph Bock;Paul Christou

  • Assembly of monoclonal antibodies with IgG1 and IgA heavy chain domains in transgenic tobacco plants

    Julian K.-C. Ma;Thomas Lehner;Paul Stabila;Charles I. Fux

  • N-Glycosylation of a mouse IgG expressed in transgenic tobacco plants

    Marion Cabanes-Macheteau;Anne-Catherine Fitchette-Lainé;Corinne Loutelier-Bourhis;Catherine Lange

  • Plant-derived pharmaceuticals – the road forward

    Julian K.-C. Ma;Rachel Chikwamba;Penny Sparrow;Rainer Fischer

  • Regulatory approval and a first‐in‐human phase I clinical trial of a monoclonal antibody produced in transgenic tobacco plants

    Julian K-C. Ma;Jürgen Drossard;David Lewis;Friedrich Altmann

  • In situ delivery of passive immunity by lactobacilli producing single-chain antibodies.

    Carina Krüger;Yanzhong Hu;Qiang Pan;Harold Marcotte

  • Plant‐made pharmaceuticals: Leading products and production platforms

    Matthew Paul;Julian K‐C. Ma

  • Plant Molecular Pharming for the Treatment of Chronic and Infectious Diseases

    Eva Stoger;Rainer Fischer;Maurice Moloney;Julian K.-C. Ma

  • Genetically modified plants and human health

    Suzie Key;Julian K.C. Ma;Pascal M.W. Drake

  • An investigation into the mechanism of protection by local passive immunization with monoclonal antibodies against Streptococcus mutans.

    J. K.-C. Ma;M. Hunjan;R. Smith;C. Kelly

  • Use of monoclonal antibodies in local passive immunization to prevent colonization of human teeth by Streptococcus mutans.

    J K Ma;R Smith;T Lehner

  • Potential Applications of Plant Biotechnology against SARS-CoV-2.

    Teresa Capell;Richard M. Twyman;Victoria Armario-Najera;Julian K.-C. Ma

  • A murine monoclonal antibody produced in transgenic plants with plant-specific glycans is not immunogenic in mice

    D. Chargelegue;N. D. Vine;C. J. van Dolleweerd;P. M. W. Drake

  • Cost-effective production of a vaginal protein microbicide to prevent HIV transmission

    Koreen Ramessar;Thomas Rademacher;Markus Sack;Johannes Stadlmann

  • Expression of an immunogenic Ebola immune complex in Nicotiana benthamiana

    Waranyoo Phoolcharoen;Seong H. Bhoo;Huafang Lai;Julian Ma

  • Pharma-Planta: road testing the developing regulatory guidelines for plant-made pharmaceuticals

    Penelope Amelia Claire Sparrow;Judith A. Irwin;Phil J. Dale;Richard M. Twyman

Frequent Co-Authors

Paul Christou
Paul Christou University of Lleida
Eva Stoger
Eva Stoger BOKU University
Rainer Fischer
Rainer Fischer Purdue University West Lafayette
Thomas Lehner
Thomas Lehner Guy's Hospital
Richard M. Twyman
Richard M. Twyman University of Warwick
Friedrich Altmann
Friedrich Altmann BOKU University
Anthony R. Fooks
Anthony R. Fooks St George's, University of London
Lorenzo Frigerio
Lorenzo Frigerio University of Warwick
Keith E. Mostov
Keith E. Mostov University of California, San Francisco
Ralph Bock
Ralph Bock Max Planck Institute of Molecular Plant Physiology

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