World's Best Scientists 2026 revealed!
Stephan Hann

Stephan Hann

D-Index & Metrics

Chemistry

D-Index
52
Citations
9439
World Ranking
13534
National Ranking
90

Stephan Hann 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 Stephan Hann sits on this spectrum.

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 publications 1,295+

This scientist: 206 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Stephan Hann 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 Stephan Hann sits on this spectrum.

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 D-Index 159+

This scientist: 52 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Stephan Hann is affiliated with BOKU University in Austria. Their research focuses primarily on biochemistry, genetics, and molecular biology, with significant contributions to agricultural and biological sciences as well as chemistry. Their work spans multiple specialized subfields, including molecular biology, plant science, biomedical engineering, spectroscopy, and analytical chemistry.

Their scientific output covers a range of topics related to metabolic engineering, analytical chemistry, and microbial genetics. Key themes in their research include microbial metabolic engineering and bioproduction, metabolomics and mass spectrometry studies, analytical chemistry and chromatography, fungal and yeast genetics, analytical chemistry methods development, mass spectrometry applications, and isotope analysis in ecology.

Stephan Hann has coauthored numerous papers with several frequent collaborators, including Christina Troyer, Tim Causon, Diethard Mattanovich, Teresa Mairinger, and Zora Jandrić.

Their work appears regularly in several publication venues, such as Analytica Chimica Acta, bioRxiv (Cold Spring Harbor Laboratory), Analytical and Bioanalytical Chemistry, Plant Science, and the Proceedings of the National Academy of Sciences.

Among their recent published papers are:

  • What CHO is made of: Variations in the biomass composition of Chinese hamster ovary cell lines (2020, Metabolic Engineering)
  • Maize (Zea mays L.) root exudation profiles change in quality and quantity during plant development - A field study (2023, Plant Science)
  • Conversion of CO 2 into organic acids by engineered autotrophic yeast (2022, Proceedings of the National Academy of Sciences)
  • Multivariate modelling techniques applied to metabolomic, elemental and isotopic fingerprints for the verification of regional geographical origin of Austrian carrots (2020, Food Chemistry)
  • The oxygen-tolerant reductive glycine pathway assimilates methanol, formate and CO2 in the yeast Komagataella phaffii (2023, Nature Communications)

Best Publications

  • An Interlaboratory Evaluation of Drift Tube Ion Mobility-Mass Spectrometry Collision Cross Section Measurements.

    Sarah M. Stow;Tim J. Causon;Xueyun Zheng;Ruwan T. Kurulugama

  • Recommendations for reporting ion mobility Mass Spectrometry measurements

    Valérie Gabelica;Alexandre A. Shvartsburg;Carlos Afonso;Perdita Barran

  • The industrial yeast Pichia pastoris is converted from a heterotroph into an autotroph capable of growth on CO 2

    Thomas Gassler;Michael Sauer;Brigitte Gasser;Michael Egermeier

  • Ionic liquids for extraction of metals and metal containing compounds from communal and industrial waste water.

    Lisa Fischer;Thomas Falta;Gunda Koellensperger;Anja Stojanovic

  • Automated on-line flow-injection ICP-MS determination of trace metals (Mn, Fe, Co, Ni, Cu and Zn) in open ocean seawater: Application to the GEOTRACES program

    M.E. Lagerström;M.P. Field;M. Séguret;L. Fischer

  • LC-MS/MS analysis of phenols for classification of red wine according to geographic origin, grape variety and vintage

    Leonhard Jaitz;Kathrin Siegl;Reinhard Eder;Gabor Rak

  • Root exudation of phytosiderophores from soil‐grown wheat

    Eva Oburger;Barbara Gruber;Yvonne Schindlegger;Walter D. C. Schenkeveld

  • Systems-level organization of yeast methylotrophic lifestyle.

    Hannes Rußmayer;Markus Buchetics;Clemens Gruber;Minoska Valli

  • Evaluation of a novel tool for sampling root exudates from soil-grown plants compared to conventional techniques

    Eva Oburger;Madeleine Dell‘mour;Stephan Hann;Gottfried Wieshammer

  • Monitoring, removal and risk assessment of cytostatic drugs in hospital wastewater

    K. Lenz;S.N. Mahnik;S.N. Mahnik;N. Weissenbacher;R.M. Mader

  • Determination of Pt, Pd and Rh by inductively coupled plasma sector field mass spectrometry (ICP-SFMS) in size-classified urban aerosol samples

    Katherina Kanitsar;Gunda Koellensperger;Stephan Hann;Andreas Limbeck

  • Fate of cancerostatic platinum compounds in biological wastewater treatment of hospital effluents.

    Katharina Lenz;Gunda Koellensperger;Stephan Hann;Norbert Weissenbacher

  • Environmental application of elemental speciation analysis based on liquid or gas chromatography hyphenated to inductively coupled plasma mass spectrometry--a review.

    Maximilian Popp;Stephan Hann;Gunda Koellensperger

  • Model based engineering of Pichia pastoris central metabolism enhances recombinant protein production

    Justyna Nocon;Matthias G. Steiger;Martin Pfeffer;Seung Bum Sohn

  • Presence of cancerostatic platinum compounds in hospital wastewater and possible elimination by adsorption to activated sludge.

    Katharina Lenz;Stephan Hann;Gunda Koellensperger;Zsolt Stefanka

  • Two dimensional separation schemes for investigation of the interaction of an anticancer ruthenium(III) compound with plasma proteins

    M. Sulyok;S. Hann;C. G. Hartinger;B. K. Keppler

  • Novel separation method for highly sensitive speciation of cancerostatic platinum compounds by HPLC-ICP-MS.

    S. Hann;Zs. Stefánka;K. Lenz;G. Stingeder

  • The potential of ion mobility-mass spectrometry for non-targeted metabolomics.

    Teresa Mairinger;Tim J Causon;Stephan Hann

  • Oxidative protein folding and unfolded protein response elicit differing redox regulation in endoplasmic reticulum and cytosol of yeast.

    Marizela Delic;Corinna Rebnegger;Franziska Wanka;Verena Puxbaum

  • Time and substrate dependent exudation of carboxylates by Lupinus albus L. and Brassica napus L.

    Tanja Mimmo;Stephan Hann;Leonhard Jaitz;Stefano Cesco

  • Determination of Rh, Pd and Pt in environmental silica containing matrices: capabilities and limitations of ICP-SFMS

    Gunda Köllensperger;Stephan Hann;Gerhard Stingeder

Frequent Co-Authors

Gunda Koellensperger
Gunda Koellensperger University of Vienna
Eva Oburger
Eva Oburger BOKU University
Diethard Mattanovich
Diethard Mattanovich BOKU University
Markus Puschenreiter
Markus Puschenreiter BOKU University
Brigitte Gasser
Brigitte Gasser BOKU University
Michael Sauer
Michael Sauer University of Potsdam
Bernhard K. Keppler
Bernhard K. Keppler University of Vienna
Thomas Prohaska
Thomas Prohaska University of Leoben
Walter W. Wenzel
Walter W. Wenzel BOKU University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to a variety of career paths, many of which offer online degree options for added flexibility. Related fields such as pharmaceutical sales, paralegal work in healthcare law, and medical forensic assistance often intersect with chemistry knowledge, creating diverse employment opportunities.

For those interested in legal aspects, exploring what types of paralegals make the most money can guide you toward specialized roles that command higher salaries. In the pharmaceutical industry, becoming a drug representative is a popular option, and understanding drug rep salary helps evaluate this career’s financial potential.

For those pursuing further education, learning how to become a pharmacist salary provides insight into the commitment required and compensation expectations. Additionally, the field of forensics offers unique roles such as medical examiner assistants, where chemistry skills are invaluable—discover how to become a medical examiner assistant to better understand educational paths and job outlooks.

By aligning your chemistry studies with these career pathways, you can find rewarding roles that match your interests and goals.

Best Scientists Citing Stephan Hann

Trending Scientists

Recently Published Articles