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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 97 1468 1302 563 462 397 33489

Joseph A. Loo publications per year

The chart shows the history of publications by Joseph A. Loo between 1970 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Joseph A. Loo published across 56 years, from 1970 to 2025, averaging 9.3 papers a year. Output peaked at 60 publications in 2020. 32 of the 518 publications appeared in the last two years.

No. of publications
20 40 60
Bar chart. Horizontal axis: year, 1970 to 2025. Vertical axis: number of publications, 0 to 60. Peak 60 publications in 2020. 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 5 publications 1988: 3 publications 1989: 7 publications 1990: 7 publications 1991: 7 publications 1992: 8 publications 1993: 7 publications 1994: 8 publications 1995: 7 publications 1996: 6 publications 1997: 10 publications 1998: 10 publications 1999: 7 publications 2000: 5 publications 2001: 3 publications 2002: 4 publications 2003: 10 publications 2004: 9 publications 2005: 16 publications 2006: 10 publications 2007: 19 publications 2008: 13 publications 2009: 25 publications 2010: 21 publications 2011: 12 publications 2012: 14 publications 2013: 13 publications 2014: 18 publications 2015: 17 publications 2016: 13 publications 2017: 14 publications 2018: 20 publications 2019: 16 publications 2020: 60 publications 2021: 14 publications 2022: 19 publications 2023: 28 publications 2024: 12 publications 2025: 20 publications
1970 2025

518 publications in total across all disciplines

View publications per year as a table
Joseph A. Loo: publications per year, 1970 to 2025
Year Publications
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 5
1988 3
1989 7
1990 7
1991 7
1992 8
1993 7
1994 8
1995 7
1996 6
1997 10
1998 10
1999 7
2000 5
2001 3
2002 4
2003 10
2004 9
2005 16
2006 10
2007 19
2008 13
2009 25
2010 21
2011 12
2012 14
2013 13
2014 18
2015 17
2016 13
2017 14
2018 20
2019 16
2020 60
2021 14
2022 19
2023 28
2024 12
2025 20
Total 518
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Joseph A. Loo 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 Joseph A. Loo 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, 381–400 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: 397 publications — 80th percentile

80% 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
381–400 459 397
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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Joseph A. Loo 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 Joseph A. Loo 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, 96–97 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: 97 D-Index — 92nd percentile

92% 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
90–91 185
92–93 192
94–95 155
96–97 163 97
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

Joseph A. Loo is affiliated with the University of California, Los Angeles in the United States. Their research spans multiple fields, with a focus on spectroscopy, molecular biology, and neurology, among others. The scientist's work extends into materials chemistry and the history and philosophy of science.

The main topics covered in Joseph A. Loo's research include academic writing and publishing, mass spectrometry techniques and applications, and advanced proteomics techniques and applications. Other significant areas of investigation include enzyme structure and function, analytical chemistry and chromatography, ion-surface interactions and analysis, and metabolomics and mass spectrometry studies.

Joseph A. Loo has coauthored frequently with several researchers. The most frequent collaborators include John R. Yates, Cynthia J. Burrows, Shu Wang, Hyun Jae Kim, and Gerald J. Meyer.

The scientist's recent papers cover diverse subjects within their expertise. Notable publications include:

  • The Human Proteoform Project: Defining the human proteome (2021, Science Advances)
  • Amyloid fibrils in FTLD-TDP are composed of TMEM106B and not TDP-43 (2022, Nature)
  • Higher-order structural characterisation of native proteins and complexes by top-down mass spectrometry (2020, Chemical Science)
  • Interlaboratory Study for Characterizing Monoclonal Antibodies by Top-Down and Middle-Down Mass Spectrometry (2020, Journal of the American Society for Mass Spectrometry)
  • PEPPI-MS: Polyacrylamide-Gel-Based Prefractionation for Analysis of Intact Proteoforms and Protein Complexes by Mass Spectrometry (2020, Journal of Proteome Research)

Joseph A. Loo has published extensively in several scientific journals. The most frequent publication venues include:

  • Journal of the American Society for Mass Spectrometry
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Journal of Proteome Research
  • Journal of the American Chemical Society
  • Analytical Chemistry

Best Publications

  • Studying noncovalent protein complexes by electrospray ionization mass spectrometry

    Joseph A. Loo

  • New developments in biochemical mass spectrometry: electrospray ionization

    Richard D. Smith;Joseph A. Loo;Charles G. Edmonds;Charles J. Barinaga

  • How many human proteoforms are there

    Ruedi Aebersold;Jeffrey N. Agar;I. Jonathan Amster;Mark S. Baker

  • Principles and practice of electrospray ionization—mass spectrometry for large polypeptides and proteins

    Richard D. Smith;Joseph A. Loo;Rachel R. Ogorzalek Loo;Mark Busman

  • Electrospray ionization mass spectrometry: a technology for studying noncovalent macromolecular complexes

    Joseph A Loo

  • Specific, irreversible inactivation of the epidermal growth factor receptor and erbB2, by a new class of tyrosine kinase inhibitor

    David W. Fry;Alexander J. Bridges;William A. Denny;Annette Doherty

  • The proteomes of human parotid and submandibular/sublingual gland salivas collected as the ductal secretions

    Paul Denny;Fred K. Hagen;Markus Hardt;Lujian Liao

  • Use of Proteomics to Demonstrate a Hierarchical Oxidative Stress Response to Diesel Exhaust Particle Chemicals in a Macrophage Cell Line

    Gary Guishan Xiao;Gary Guishan Xiao;Meiying Wang;Ning Li;Joseph A. Loo

  • Selective peptide antagonist of the class E calcium channel from the venom of the tarantula Hysterocrates gigas.

    Robert Newcomb;Balazs Szoke;Andrew Palma;Gang Wang

  • Large-scale identification of proteins in human salivary proteome by liquid chromatography/mass spectrometry and two-dimensional gel electrophoresis-mass spectrometry.

    Shen Hu;Yongming Xie;Prasanna Ramachandran;Rachel R. Ogorzalek Loo

  • Tyrosine kinase inhibitors. 17. Irreversible inhibitors of the epidermal growth factor receptor: 4-(phenylamino)quinazoline- and 4-(phenylamino)pyrido[3,2-d]pyrimidine-6-acrylamides bearing additional solubilizing functions.

    J. B. Smaill;G. W. Rewcastle;J. A. Loo;K. D. Greis

  • Effect of reducing disulfide-containing proteins on electrospray ionization mass spectra.

    Joseph A. Loo;Charles G. Edmonds;Harold R. Udseth;Richard D. Smith

  • Enhanced FASP (eFASP) to increase proteome coverage and sample recovery for quantitative proteomic experiments.

    Jonathan Erde;Rachel R. Ogorzalek Loo;Joseph A. Loo

  • Cardiolipin defines the interactome of the major ADP/ATP carrier protein of the mitochondrial inner membrane

    Steven M. Claypool;Yavuz Oktay;Pinmanee Boontheung;Joseph A. Loo

  • Best practices and benchmarks for intact protein analysis for top-down mass spectrometry.

    Daniel P. Donnelly;Catherine M. Rawlins;Caroline J. DeHart;Luca Fornelli

  • Solvent-induced conformational changes of polypeptides probed by electrospray-ionization mass spectrometry.

    Joseph A. Loo;Rachel R. Ogorzalek Loo;Harold R. Udseth;Charles G. Edmonds

  • Peptide and protein analysis by electrospray ionization-mass spectrometry and capillary electrophoresis-mass spectrometry.

    Joseph A. Loo;Harold R. Udseth;Richard D. Smith

  • Lysine-Specific Molecular Tweezers Are Broad-Spectrum Inhibitors of Assembly and Toxicity of Amyloid Proteins

    Sharmistha Sinha;Dahabada H. J. Lopes;Zhenming Du;Eric S. Pang

  • Primary sequence information from intact proteins by electrospray ionization tandem mass spectrometry

    Joseph A. Loo;Charles G. Edmonds;Richard D. Smith

  • Collisional effects on the charge distribution of ions from large molecules, formed by electrospray‐ionization mass spectrometry

    Joseph A. Loo;Harold R. Udseth;Richard D. Smith;J. H. Futrell

Frequent Co-Authors

John R. Yates
John R. Yates Scripps Research Institute
Carolyn R. Bertozzi
Carolyn R. Bertozzi Stanford University
Gilbert C. Walker
Gilbert C. Walker University of Toronto
Stuart J. Rowan
Stuart J. Rowan University of Chicago
Prashant V. Kamat
Prashant V. Kamat University of Notre Dame
Marc A. Hillmyer
Marc A. Hillmyer University of Minnesota
Vincent M. Rotello
Vincent M. Rotello University of Massachusetts Amherst
Gregory D. Scholes
Gregory D. Scholes Princeton University

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