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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 88 2295 2061 51 45 508 26919

Helmut Sigel publications per year

The chart shows the history of publications by Helmut Sigel between 1963 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Helmut Sigel published across 63 years, from 1963 to 2025, averaging 8.6 papers a year. Output peaked at 21 publications in 1972. 15 of the 541 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1963 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 1972. 1963: 2 publications 1964: 2 publications 1965: 5 publications 1966: 13 publications 1967: 5 publications 1968: 10 publications 1969: 10 publications 1970: 8 publications 1971: 11 publications 1972: 21 publications 1973: 10 publications 1974: 13 publications 1975: 15 publications 1976: 8 publications 1977: 8 publications 1978: 8 publications 1979: 10 publications 1980: 11 publications 1981: 8 publications 1982: 12 publications 1983: 13 publications 1984: 6 publications 1985: 12 publications 1986: 9 publications 1987: 8 publications 1988: 10 publications 1989: 14 publications 1990: 9 publications 1991: 9 publications 1992: 6 publications 1993: 8 publications 1994: 6 publications 1995: 13 publications 1996: 8 publications 1997: 9 publications 1998: 15 publications 1999: 14 publications 2000: 12 publications 2001: 10 publications 2002: 13 publications 2003: 12 publications 2004: 18 publications 2005: 9 publications 2006: 7 publications 2007: 9 publications 2008: 5 publications 2009: 11 publications 2010: 12 publications 2011: 8 publications 2012: 3 publications 2013: 6 publications 2014: 2 publications 2015: 9 publications 2016: 5 publications 2017: 5 publications 2018: 4 publications 2019: 3 publications 2020: 0 publications 2021: 0 publications 2022: 2 publications 2023: 2 publications 2024: 12 publications 2025: 3 publications
1963 2025

541 publications in total across all disciplines

View publications per year as a table
Helmut Sigel: publications per year, 1963 to 2025
Year Publications
1963 2
1964 2
1965 5
1966 13
1967 5
1968 10
1969 10
1970 8
1971 11
1972 21
1973 10
1974 13
1975 15
1976 8
1977 8
1978 8
1979 10
1980 11
1981 8
1982 12
1983 13
1984 6
1985 12
1986 9
1987 8
1988 10
1989 14
1990 9
1991 9
1992 6
1993 8
1994 6
1995 13
1996 8
1997 9
1998 15
1999 14
2000 12
2001 10
2002 13
2003 12
2004 18
2005 9
2006 7
2007 9
2008 5
2009 11
2010 12
2011 8
2012 3
2013 6
2014 2
2015 9
2016 5
2017 5
2018 4
2019 3
2020 0
2021 0
2022 2
2023 2
2024 12
2025 3
Total 541
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Helmut Sigel 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 Helmut Sigel sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 501–520 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 508 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201 508
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Helmut Sigel 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 Helmut Sigel sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 88–89 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 88 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235 88
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Helmut Sigel is affiliated with the University of Basel in Switzerland and has contributed to the fields of Medicine as well as Biochemistry, Genetics and Molecular Biology. Their work spans various subfields including Molecular Biology, Epidemiology, Radiology, Nuclear Medicine and Imaging, Cardiology and Cardiovascular Medicine, and General Health Professions.

The research topics addressed by Helmut Sigel involve:

  • Cytomegalovirus and herpesvirus research
  • RNA regulation and disease
  • Advanced MRI Techniques and Applications
  • Biochemical and Molecular Research
  • Viral Infections and Immunology Research
  • HIV/AIDS drug development and treatment
  • Hermeneutics and Narrative Identity

Among the recent papers featuring Helmut Sigel as an author or co-author are:

  • "Coordination Chemistry of Nucleotides and Antivirally Active Acyclic Nucleoside Phosphonates, including Mechanistic Considerations" (2022) published in Molecules
  • "Acid-base properties of an antivirally active acyclic nucleoside phosphonate: (S)-9-[3-hydroxy-2-(phosphonomethoxy)propyl]adenine (HPMPA)" (2022) published in New Journal of Chemistry
  • "Spectrum of Disease Severity in Canavan Leukodystrophy" (2024) published in Neuropediatrics
  • "Analysis of Anthropometric Measurements in Children with Canavan Disease" (2024) published in Neuropediatrics
  • "Deep Intronic SVA_E Retrotransposition as a Novel Factor in Canavan Disease Pathogenesis" (2025) published in Human Gene Therapy

Helmut Sigel frequently collaborates with a number of researchers, including:

  • Annette Bley
  • Astrid Sigel
  • Jan Bredow
  • Amanda Nagy
  • Florian Eichler

Their publications appear predominantly in the following venues:

  • Neuropediatrics
  • Molecules
  • New Journal of Chemistry
  • Human Gene Therapy
  • Journal of Clinical Medicine

Best Publications

  • Coordinating properties of the amide bond. Stability and structure of metal ion complexes of peptides and related ligands

    Helmut Sigel;R. Bruce Martin

  • Handbook on toxicity of inorganic compounds

    Hans G. Seiler;Helmut Sigel;Astrid Sigel

  • Handbook on metals in clinical and analytical chemistry

    Hans G. Seiler;Astrid Sigel;Helmut Sigel

  • Interactions of metal ions with nucleotides and nucleic acids and their constituents

    Helmut Sigel

  • Handbook on Metalloproteins

    Ivano Bertini;Astrid Sigel;Helmut Sigel

  • Ternary Cu2+ Complexes: Stability, Structure, and Reactivity

    Helmut Sigel

  • Discriminating behavior of metal ions and ligands with regard to their biological significance

    Helmut Sigel;Donald B. McCormick

  • Comparison of the Extent of Macrochelate Formation in Complexes of Divalent Metal Ions with Guanosine (GMP2-), Inosine (IMP2-), and Adenosine 5'-Monophosphate (AMP2-). The Crucial Role of N-7 Basicity in Metal Ion-Nucleic Base Recognition

    Helmut Sigel;Salah S. Massoud;Nicolas A. Corfu

  • A stability concept for metal ion coordination to single-stranded nucleic acids and affinities of individual sites.

    Roland K. O. Sigel;Helmut Sigel

  • Macrochelate formation in monomeric metal ion complexes of nucleoside 5'-triphosphates and the promotion of stacking by metal ions. Comparison of the self-association of purine and pyrimidine 5'-triphosphates using proton nuclear magnetic resonance

    Kurt H. Scheller;Fritz Hofstetter;Paul R. Mitchell;Bernhard Prijs

  • Interrelations between Essential Metal Ions and Human Diseases

    Astrid Sigel;Helmut Sigel;Roland K. O. Sigel

  • Ternary complexes in solution. 35. Intramolecular hydrophobic ligand-ligand interactions in mixed ligand complexes containing an aliphatic amino acid

    Beda E. Fischer;Helmut Sigel

  • Ternary complexes in solution. VIII. Complex formation between the copper(II)-2,2'-bipyridyl 1:1 complex and ligands containing oxygen and/or nitrogen donor atoms

    Rolf Griesser;Helmut Sigel

  • Metal ion coordinating properties of pyrimidine-nucleoside 5'-monophosphates (CMP, UMP, TMP) and of simple phosphate monoesters, including D-ribose 5'-monophosphate. Establishment of relations between complex stability and phosphate basicity

    Salah S. Massoud;Helmut Sigel

  • Metal Ions in Life Sciences

    Astrid Sigel;Helmut Sigel;Roland K O Sigel

  • Self-association and protonation of adenosine 5'-monophosphate in comparison with its 2'- and 3'-analogues and tubercidin 5'-monophosphate (7-deaza-AMP).

    Roger Tribolet;Helmut Sigel

  • Comments on potentiometric pH titrations and the relationship between pH-meter reading and hydrogen ion concentration

    Helmut Sigel;Andreas D. Zuberbühler;Osamu Yamauchi

  • Nucleoside 5'-triphosphates: self-association, acid-base, and metal ion-binding properties in solution.

    Unknown

  • Cadmium : from toxicity to essentiality

    Astrid Sigel;Helmut Sigel;Roland K. O. Sigel

  • Metal ion/buffer interactions. Stability of binary and ternary complexes containing 2-amino-2(hydroxymethyl)-1,3-propanediol (Tris) and adenosine 5'-triphosphate (ATP).

    Beda E. Fischer;Ulrich K. Häring;Roger Tribolet;Helmut Sigel

  • Isomeric equilibria in complexes of adenosine 5′‐triphosphate with divalent metal ions

    Helmut Sigel

  • Metal Ions in Biological Systems

    Helmut Sigel;Roland K O Sigel

Frequent Co-Authors

Roland K. O. Sigel
Roland K. O. Sigel University of Zurich
Antonín Holý
Antonín Holý Czech Academy of Sciences
Bernhard Lippert
Bernhard Lippert TU Dortmund University
R. Bruce Martin
R. Bruce Martin University of Virginia
Virtudes Moreno
Virtudes Moreno University of Barcelona
F. Ann Walker
F. Ann Walker University of Arizona
Henryk Kozlowski
Henryk Kozlowski University of Wrocław
Jens Müller
Jens Müller University of Münster
Paolo Carloni
Paolo Carloni Forschungszentrum Jülich

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