World's Best Scientists 2026 revealed!
Merja Penttilä

Merja Penttilä

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Biology and Biochemistry
Finland
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
100
Citations
31627
World Ranking
1546
National Ranking
6

Merja Penttilä 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 Merja Penttilä 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: 383 publications — 88th percentile

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

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

Merja Penttilä 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 Merja Penttilä 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: 100 D-Index — 92nd percentile

92% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Finland Leader Award
  • 2025 - Research.com Biology and Biochemistry in Finland Leader Award
  • 2023 - Research.com Biology and Biochemistry in Finland Leader Award
  • 2022 - Research.com Biology and Biochemistry in Finland Leader Award

Overview

Merja Penttilä is affiliated with Aalto University in Finland and specializes in biochemistry, genetics, and molecular biology, with a focus on molecular biology, biomedical engineering, biomaterials, biotechnology, and materials chemistry. Their research primarily explores topics related to biofuel production and bioconversion, microbial metabolic engineering and bioproduction, enzyme production and characterization, viral infectious diseases and gene expression in insects, fungal and yeast genetics research, biodegradable polymer synthesis and properties, and advanced cellulose research studies.

They have published extensively in several scientific journals, with frequent contributions to venues such as Advanced Materials, Microbial Cell Factories, Biomacromolecules, Nanoscale, and ACS Synthetic Biology.

  • Bioinspired Functionally Graded Composite Assembled Using Cellulose Nanocrystals and Genetically Engineered Proteins with Controlled Biomineralization, 2021, Advanced Materials
  • The complex structure of Fomes fomentarius represents an architectural design for high-performance ultralightweight materials, 2023, Science Advances
  • Bioprocess performance analysis of novel methanol-independent promoters for recombinant protein production with Pichia pastoris, 2021, Microbial Cell Factories
  • Substrate specificity of 2-deoxy-D-ribose 5-phosphate aldolase (DERA) assessed by different protein engineering and machine learning methods, 2020, Applied Microbiology and Biotechnology
  • Strain design optimization using reinforcement learning, 2022, PLoS Computational Biology

Merja Penttilä collaborates frequently with researchers including Pezhman Mohammadi, Robert Pylkkänen, Paula Jouhten, Mervi Toivari, and Hannu Maaheimo, with multiple joint publications reflecting ongoing scientific partnerships.

  • Pezhman Mohammadi
  • Robert Pylkkänen
  • Paula Jouhten
  • Mervi Toivari
  • Hannu Maaheimo

Their research contributions span key areas such as enzyme production and functional characterization, development and optimization of microbial strains for bioproduction, and applications of biomaterials inspired by natural architectures. This work includes investigation into advanced cellulose composites and exploration of novel promoters for recombinant protein production.

Best Publications

  • A versatile transformation system for the cellulolytic filamentous fungus Trichoderma reesei

    Merja Penttilä;Helena Nevalainen;Marjaana Rättö;Elina Salminen

  • Hydrophobins: the protein-amphiphiles of filamentous fungi.

    Markus B. Linder;Géza R. Szilvay;Géza R. Szilvay;Tiina Nakari-Setälä;Merja E. Penttilä

  • Transcriptional regulation of plant cell wall degradation by filamentous fungi

    Nina Aro;Tiina Pakula;Merja Penttilä

  • A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology

    Markus Herrgard;Neil Swainston;Paul Dobson;Warwick B. Dunn

  • Metabolic engineering applications to renewable resource utilization.

    Aristos Aristidou;Merja Penttilä

  • Regulation of cellulase gene expression in the filamentous fungus Trichoderma reesei.

    M Ilmén;A Saloheimo;M L Onnela;M E Penttilä

  • Traffic Jams Reduce Hydrolytic Efficiency of Cellulase on Cellulose Surface

    Kiyohiko Igarashi;Takayuki Uchihashi;Anu Koivula;Masahisa Wada;Masahisa Wada

  • Swollenin, a Trichoderma reesei protein with sequence similarity to the plant expansins, exhibits disruption activity on cellulosic materials

    Markku Saloheimo;Marja Paloheimo;Satu Hakola;Jaakko Pere

  • EGIII, a new endoglucanase from Trichoderma reesei: the characterization of both gene and enzyme

    M. Saloheimo;P. Lehtovaara;M. Penttilä;T.T. Teeri

  • Homology between cellulase genes of Trichoderma reesei: complete nucleotide sequence of the endoglucanase I gene

    Merja Penttilä;Päivi Lehtovaara;Helena Nevalainen;Ramagauri Bhikhabhai

  • ACEII, a novel transcriptional activator involved in regulation of cellulase and xylanase genes of Trichoderma reesei.

    Nina Aro;Anu Saloheimo;Marja Ilmén;Merja Penttilä

  • The glucose repressor gene cre1 of Trichoderma: isolation and expression of a full-length and a truncated mutant form.

    Marja Ilmén;Charlotte Thrane;Merja Penttilä

  • Xylose-metabolizing Saccharomyces cerevisiae strains overexpressing the TKL1 and TAL1 genes encoding the pentose phosphate pathway enzymes transketolase and transaldolase

    M Walfridsson;J Hallborn;M Penttilä;S Keränen

  • High Speed Atomic Force Microscopy Visualizes Processive Movement of Trichoderma reesei Cellobiohydrolase I on Crystalline Cellulose

    Kiyohiko Igarashi;Anu Koivula;Masahisa Wada;Satoshi Kimura

  • ACEI of Trichoderma reesei is a repressor of cellulase and xylanase expression

    Nina Aro;Marja Ilmén;Anu Saloheimo;Merja Penttilä

  • Xylitol production by recombinant Saccharomyces cerevisiae.

    Johan Hallborn;Mats Walfridsson;Ulla Airaksinen;Heikki Ojamo

  • Efficient secretion of two fungal cellobiohydrolases by Saccharomyces cerevisiae

    Merja E. Penttilä;Lars André;Päivi Lehtovaara;Michael Bailey

  • cDNA Cloning of a Trichoderma reesei Cellulase and Demonstration of Endoglucanase Activity by Expression in Yeast

    Markku Saloheimo;Tiina Nakari‐SetäLä;Maija Tenkanen;Merja Penttilä

  • Conversion of xylose to ethanol by recombinant Saccharomyces cerevisiae: importance of xylulokinase (XKS1) and oxygen availability.

    Mervi H. Toivari;Aristos Aristidou;Laura Ruohonen;Merja Penttilä

  • A novel, small endoglucanase gene, egl5, from Trichoderma reesei isolated by expression in yeast.

    Anu Saloheimo;Bernard Henrissat;Anna‐Marja ‐M Hoffrén;Olle Teleman

Frequent Co-Authors

Markku Saloheimo
Markku Saloheimo VTT Technical Research Centre of Finland
Maija Tenkanen
Maija Tenkanen University of Helsinki
Markus Linder
Markus Linder Aalto University
Matti Siika-aho
Matti Siika-aho VTT Technical Research Centre of Finland
Lucília Domingues
Lucília Domingues University of Minho
Roland Contreras
Roland Contreras Ghent University
Nisse Kalkkinen
Nisse Kalkkinen University of Helsinki
Bärbel Hahn-Hägerdal
Bärbel Hahn-Hägerdal Lund University
Kiyohiko Igarashi
Kiyohiko Igarashi University of Tokyo
Juha Rouvinen
Juha Rouvinen University of Eastern Finland

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