World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
52
Citations
8795
World Ranking
13598
National Ranking
1001

Ruth Freitag 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 Ruth Freitag 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: 263 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Ruth Freitag 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 Ruth Freitag 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

Ruth Freitag is affiliated with the University of Bayreuth in Germany and has contributed extensively to several fields of scientific research. Their work spans Environmental Science, Materials Science, and Biochemistry, Genetics and Molecular Biology, reflecting a multidisciplinary approach toward contemporary scientific challenges.

Their research focuses heavily on the study of microplastics and plastic pollution, with particular attention to the synthesis and properties of biodegradable polymers. Additional areas of expertise include microbial fuel cells and bioremediation, recycling and waste management techniques, graphene and nanomaterials applications, RNA interference and gene delivery, as well as supercapacitor materials and fabrication.

Freitag's recent noteworthy papers include:

  • Pristine and artificially-aged polystyrene microplastic particles differ in regard to cellular response (2022, Journal of Hazardous Materials)
  • Polarization and power density trends of a soil-based microbial fuel cell treated with human urine (2020, International Journal of Energy Research)
  • Supposedly identical microplastic particles substantially differ in their material properties influencing particle-cell interactions and cellular responses (2021, Journal of Hazardous Materials)
  • Towards standardized purification of bacterial magnetic nanoparticles for future in vivo applications (2020, Acta Biomaterialia)
  • Noxic effects of polystyrene microparticles on murine macrophages and epithelial cells (2021, Scientific Reports)

Freitag frequently collaborates with several researchers, including Valérie Jérôme, Matthias Völkl, Thomas Scheibel, Julia Jasinski, and Christian Laforsch. These collaborations likely reflect interdisciplinary projects linking materials science, environmental topics, and biological research.

The scientist's publications are notably present in several key journals and venues, demonstrating a broad dissemination of research findings. Frequently published venues include:

  • Chemie Ingenieur Technik
  • Journal of Hazardous Materials
  • Scientific Reports
  • Macromolecular Bioscience
  • Journal of Plant Nutrition and Soil Science

Within their subfields, Freitag has contributed significantly to pollution research, molecular biology, biomaterials, biomedical engineering, and immunology, indicating a strong engagement with both environmental and health-related scientific questions.

Best Publications

  • Organic fertilizer as a vehicle for the entry of microplastic into the environment.

    Nicolas Weithmann;Julia N. Möller;Martin G. J. Löder;Sarah Piehl

  • Salt Effects on the Thermoprecipitation of Poly-(N-isopropylacrylamide) Oligomers from Aqueous Solution

    Ruth Freitag;Frédéric Garret-Flaudy

  • Ultralight, Soft Polymer Sponges by Self-Assembly of Short Electrospun Fibers in Colloidal Dispersions

    Gaigai Duan;Shaohua Jiang;Valérie Jérôme;Joachim H. Wendorff

  • Investigation of the LCST of polyacrylamides as a function of molecular parameters and the solvent composition

    Thomas Baltes;Frédéric Garret‐Flaudy;Ruth Freitag;Ruth Freitag

  • Influence of Polymer Architecture and Molecular Weight of Poly(2-(dimethylamino)ethyl methacrylate) Polycations on Transfection Efficiency and Cell Viability in Gene Delivery

    Christopher V. Synatschke;Anja Schallon;Valérie Jérôme;Ruth Freitag

  • Acrylamide-based monoliths as robust stationary phases for capillary electrochromatography.

    Daniela Hoegger;Ruth Freitag

  • Structure-Function Characterization and Optimization of a Plant-Derived Antibacterial Peptide

    Mougli Suarez;Marisa Haenni;Stéphane Canarelli;Florian Fisch

  • Comparison of polymer coatings of capillaries for capillary electrophoresis with respect to their applicability to molecular imprinting and electrochromatography

    Oliver Brüggemann;Ruth Freitag;Michael J. Whitcombe;Evgeny N. Vulfson

  • Protein purification by affinity precipitation.

    Frank Hilbrig;Ruth Freitag

  • Diversity of the resident microbiota in a thermophilic municipal biogas plant.

    Agnes Weiss;Valérie Jérôme;Ruth Freitag;Helmut K. Mayer

  • An Introduction to Monolithic Disks as Stationary Phases for High Performance Biochromatography

    Tatiana B. Tennikova;Ruth Freitag

  • Dual-responsive magnetic core-shell nanoparticles for nonviral gene delivery and cell separation.

    Alexander P. Majewski;Anja Schallon;Valérie Jérôme;Ruth Freitag

  • DNA purification by triple-helix affinity precipitation.

    Matteo D. Costioli;Igor Fisch;Frédéric Garret‐Flaudy;Frank Hilbrig

  • High-performance membrane chromatography of supercoiled plasmid DNA.

    Roberto Giovannini;Ruth Freitag;Tatiana B. Tennikova

  • PDMAEMA-Grafted Core–Shell–Corona Particles for Nonviral Gene Delivery and Magnetic Cell Separation

    Alexander P. Majewski;Ullrich Stahlschmidt;Valérie Jérôme;Ruth Freitag

  • Performance of three PDMAEMA-based polycation architectures as gene delivery agents in comparison to linear and branched PEI

    Anja Schallon;Valérie Jérôme;Andreas Walther;Christopher V. Synatschke

  • Comparison of antibody binding to immobilized group specific affinity ligands in high performance monolith affinity chromatography

    Laure G. Berruex;Ruth Freitag;Tatiana B. Tennikova

  • Synthesis and Characterization of Photoresponsive N-Isopropylacrylamide Cotelomers

    Arnaud Desponds;Ruth Freitag

  • Isolation and purification of recombinant proteins, antibodies and plasmid DNA with hydroxyapatite chromatography.

    Frank Hilbrig;Ruth Freitag

  • Powder blasting for the realisation of microchips for bio-analytic applications

    D. Solignac;A. Sayah;S. Constantin;R. Freitag

  • Fast isolation of protein receptors from streptococci G by means of macroporous affinity discs

    Cornelia Kasper;Ljudmila Meringova;Ruth Freitag;Tatiana Tennikova

Frequent Co-Authors

Axel H. E. Müller
Axel H. E. Müller Johannes Gutenberg University of Mainz
Seema Agarwal
Seema Agarwal University of Bayreuth
Andreas Greiner
Andreas Greiner University of Bayreuth
Holger Schmalz
Holger Schmalz University of Bayreuth
Martin A. M. Gijs
Martin A. M. Gijs École Polytechnique Fédérale de Lausanne
Andreas Walther
Andreas Walther University of Freiburg
Thomas Scheibel
Thomas Scheibel University of Bayreuth
Dirk Schüler
Dirk Schüler University of Bayreuth
Nicolas Mermod
Nicolas Mermod University of Lausanne
Ralf Moos
Ralf Moos University of Bayreuth

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