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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 62 9056 8209 2559 2109 177 10574

Feng Gai publications per year

The chart shows the history of publications by Feng Gai between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Feng Gai published across 35 years, from 1991 to 2025, averaging 5.6 papers a year. Output peaked at 12 publications in 2006. 15 of the 196 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2006. 1991: 1 publication 1992: 1 publication 1993: 6 publications 1994: 9 publications 1995: 1 publication 1996: 2 publications 1997: 2 publications 1998: 2 publications 1999: 1 publication 2000: 1 publication 2001: 2 publications 2002: 2 publications 2003: 5 publications 2004: 7 publications 2005: 3 publications 2006: 12 publications 2007: 8 publications 2008: 5 publications 2009: 10 publications 2010: 9 publications 2011: 11 publications 2012: 7 publications 2013: 7 publications 2014: 9 publications 2015: 8 publications 2016: 12 publications 2017: 9 publications 2018: 8 publications 2019: 7 publications 2020: 3 publications 2021: 4 publications 2022: 3 publications 2023: 4 publications 2024: 7 publications 2025: 8 publications
1991 2025

196 publications in total across all disciplines

View publications per year as a table
Feng Gai: publications per year, 1991 to 2025
Year Publications
1991 1
1992 1
1993 6
1994 9
1995 1
1996 2
1997 2
1998 2
1999 1
2000 1
2001 2
2002 2
2003 5
2004 7
2005 3
2006 12
2007 8
2008 5
2009 10
2010 9
2011 11
2012 7
2013 7
2014 9
2015 8
2016 12
2017 9
2018 8
2019 7
2020 3
2021 4
2022 3
2023 4
2024 7
2025 8
Total 196
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Feng Gai 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 Feng Gai 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, 161–180 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: 177 publications — 24th percentile

24% 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 1,350 177
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
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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Feng Gai 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 Feng Gai 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, 62–63 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: 62 D-Index — 52nd percentile

52% 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 62
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
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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Research.com Recognitions

  • 2012 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2011 - Fellow of American Physical Society (APS) Citation For his pioneering contributions to the field of protein folding, in particular the innovative use of infrared spectroscopy and the novel development of vibrational probes to elucidate the fundamental folding mechanism

Overview

Feng Gai is affiliated with the University of Pennsylvania in the United States and works primarily in the field of Biochemistry, Genetics and Molecular Biology. Their research spans a variety of subfields including Materials Chemistry, Molecular Biology, Cellular and Molecular Neuroscience, Atomic and Molecular Physics and Optics, as well as Biophysics.

Their recent published papers highlight ongoing work related to advances in fluorescent amino acids and spectroscopy. Notable publications include:

  • Unnatural Amino Acids for Biological Spectroscopy and Microscopy, 2024, Chemical Reviews
  • Tryptophan as a Template for Development of Visible Fluorescent Amino Acids, 2021, The Journal of Physical Chemistry B
  • Photoenhancement of the C≡N Stretching Vibration Intensity of Aromatic Nitriles, 2022, The Journal of Physical Chemistry Letters
  • Tuning the electronic transition energy of indole via substitution: application to identify tryptophan-based chromophores that absorb and emit visible light, 2021, Physical Chemistry Chemical Physics
  • Synthesis and characterization of the fluorescence utility of two Visible-Light-Absorbing tryptophan derivatives, 2022, Chemical Physics Letters

These papers reflect a focus on luminescence and fluorescent materials, photoreceptor and optogenetics research, spectroscopy and quantum chemical studies, advanced fluorescence microscopy techniques, photochemistry and electron transfer studies, click chemistry and applications, and molecular junctions and nanostructures.

Feng Gai has frequently published in several prominent journals, with multiple publications in:

  • The Journal of Physical Chemistry B (6 publications)
  • The Journal of Physical Chemistry Letters (4 publications)
  • Physical Chemistry Chemical Physics (3 publications)
  • The Journal of Chemical Physics (2 publications)
  • Chemical Science (2 publications)

Collaborative work is a significant part of their research output, with frequent coauthors including Wenkai Zhang, Ranran Feng, Arusha Acharyya, Bo Zhuang, and Manxi Wang.

The scientist's recognized fields of study and research topics emphasize interdisciplinary approaches, integrating molecular biology with advanced chemical and physical methods to investigate biological spectroscopic phenomena.

Feng Gai has been awarded fellowships from major scientific organizations:

  • Fellow of the American Association for the Advancement of Science (AAAS), 2012
  • Fellow of American Physical Society (APS), 2011, for pioneering contributions to protein folding using infrared spectroscopy and the development of vibrational probes to elucidate folding mechanisms

Best Publications

  • Using Nitrile-Derivatized Amino Acids as Infrared Probes of Local Environment

    Zelleka Getahun;Cheng-Yen Huang;Ting Wang;Brenda De León

  • Chemical dynamics in proteins : The photoisomerization of retinal in bacteriorhodopsin

    Feng Gai;K. C. Hasson;J. Cooper McDonald;Philip A. Anfinrud

  • Helix formation via conformation diffusion search.

    Cheng-Yen Huang;Zelleka Getahun;Yongjin Zhu;Jason W. Klemke

  • Microscopic insights into the protein-stabilizing effect of trimethylamine N-oxide (TMAO).

    Jianqiang Ma;Ileana M. Pazos;Feng Gai

  • Understanding the key factors that control the rate of β-hairpin folding

    Deguo Du;Yongjin Zhu;Cheng-Yen Huang;Feng Gai

  • INFRARED STUDIES OF FAST EVENTS IN PROTEIN FOLDING

    R. Brian Dyer;R. Brian Dyer;Feng Gai;Feng Gai;Feng Gai;William H. Woodruff;Rudolf Gilmanshin

  • The photoisomerization of retinal in bacteriorhodopsin: Experimental evidence for a three-state model

    K. C. Hasson;Feng Gai;Philip A. Anfinrud

  • Trp zipper folding kinetics by molecular dynamics and temperature-jump spectroscopy

    Christopher D. Snow;Linlin Qiu;Deguo Du;Feng Gai

  • Ultrafast folding of α3D: A de novo designed three-helix bundle protein

    Yongjin Zhu;Darwin O. V. Alonso;Kosuke Maki;Cheng-Yen Huang

  • Site-Specific Infrared Probes of Proteins

    Jianqiang Ma;Ileana M. Pazos;Wenkai Zhang;Robert M. Culik

  • Cholesterol-dependent phase separation in cell-derived giant plasma-membrane vesicles

    Ilya Levental;Fitzroy J. Byfield;Pramit Kumar Chowdhury;Feng Gai

  • Temperature-dependent helix-coil transition of an alanine based peptide.

    Cheng-Yen Huang;Jason W. Klemke;Zelleka Getahun;William F. DeGrado

  • Fluorescent species of 7-azaindole and 7-azatryptophan in water

    Y. Chen;R. L. Rich;F. Gai;Jacob W. Petrich

  • Site-Specific Spectroscopic Reporters of the Local Electric Field, Hydration, Structure, and Dynamics of Biomolecules.

    Matthias M. Waegele;Robert M. Culik;Feng Gai

  • Protein folding and unfolding on a complex energy landscape.

    Daan Thorn Leeson;Feng Gai;Hector M. Rodriguez;Lydia M. Gregoret

  • Solvation of 7-azaindole in alcohols and water : evidence for concerted, excited-state, double-proton transfer in alcohols

    Y. Chen;F. Gai;Jacob W. Petrich

  • Divalent cation-induced cluster formation by polyphosphoinositides in model membranes

    Yu Hsiu Wang;Agnieszka Collins;Lin Guo;Kathryn B. Smith-Dupont

  • Understanding the Mechanism of β-Hairpin Folding via φ-Value Analysis†

    Deguo Du;Matthew J Tucker;Feng Gai

  • Blue fluorescent amino acid for biological spectroscopy and microscopy

    Mary Rose Hilaire;Ismail A. Ahmed;Chun-Wei Lin;Hyunil Jo

  • Time-resolved infrared study of the helix-coil transition using (13)C-labeled helical peptides.

    Cheng-Yen Huang;Zelleka Getahun;Ting Wang;William F. Degrado

  • Effect of Macromolecular Crowding on Protein Folding Dynamics at the Secondary Structure Level

    Smita Mukherjee;Matthias M. Waegele;Pramit Chowdhury;Lin Guo

Frequent Co-Authors

William F. DeGrado
William F. DeGrado University of California, San Francisco
Jacob W. Petrich
Jacob W. Petrich Iowa State University
Weiya Zhang
Weiya Zhang University of Nottingham
Jeffery G. Saven
Jeffery G. Saven University of Pennsylvania
Amos B. Smith
Amos B. Smith University of Pennsylvania
R. Brian Dyer
R. Brian Dyer Emory University
Yi Qin Gao
Yi Qin Gao Peking University
Joel S. Bennett
Joel S. Bennett University of Pennsylvania
Paul A. Janmey
Paul A. Janmey University of Pennsylvania
Barry S. Cooperman
Barry S. Cooperman University of Pennsylvania

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