World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 59 10141 9170 26 25 151 12397

Gerard Downey publications per year

The chart shows the history of publications by Gerard Downey between 1975 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Gerard Downey published across 47 years, from 1975 to 2021, averaging 3.6 papers a year. Output peaked at 13 publications in 2008. 2 of the 170 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1975 to 2021. Vertical axis: number of publications, 0 to 13. Peak 13 publications in 2008. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 2 publications 1985: 2 publications 1986: 2 publications 1987: 4 publications 1988: 0 publications 1989: 2 publications 1990: 2 publications 1991: 0 publications 1992: 2 publications 1993: 1 publication 1994: 2 publications 1995: 3 publications 1996: 5 publications 1997: 5 publications 1998: 5 publications 1999: 2 publications 2000: 4 publications 2001: 1 publication 2002: 6 publications 2003: 4 publications 2004: 8 publications 2005: 6 publications 2006: 6 publications 2007: 9 publications 2008: 13 publications 2009: 7 publications 2010: 9 publications 2011: 10 publications 2012: 8 publications 2013: 6 publications 2014: 7 publications 2015: 8 publications 2016: 3 publications 2017: 5 publications 2018: 6 publications 2019: 1 publication 2020: 1 publication 2021: 1 publication
1975 2021

170 publications in total across all disciplines

View publications per year as a table
Gerard Downey: publications per year, 1975 to 2021
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 1
1980 0
1981 0
1982 0
1983 0
1984 2
1985 2
1986 2
1987 4
1988 0
1989 2
1990 2
1991 0
1992 2
1993 1
1994 2
1995 3
1996 5
1997 5
1998 5
1999 2
2000 4
2001 1
2002 6
2003 4
2004 8
2005 6
2006 6
2007 9
2008 13
2009 7
2010 9
2011 10
2012 8
2013 6
2014 7
2015 8
2016 3
2017 5
2018 6
2019 1
2020 1
2021 1
Total 170
Download as CSV

Gerard Downey 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 Gerard Downey 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, 141–160 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: 151 publications — 14th percentile

14% 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 1,218 151
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
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
Download as CSV

Gerard Downey 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 Gerard Downey 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, 58–59 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: 59 D-Index — 44th percentile

44% 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 59
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
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
Download as CSV

Research.com Recognitions

  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Gerard Downey is affiliated with Teagasc - The Irish Agriculture and Food Development Authority in Ireland. Their research spans interdisciplinary fields including Chemistry, Biochemistry, Genetics and Molecular Biology, and Engineering.

The main subfields of study focus on Analytical Chemistry, Biophysics, and Biomedical Engineering. Their work covers topics related to Spectroscopy and Chemometric Analyses, Spectroscopy Techniques in Biomedical and Chemical Research, and Advanced Chemical Sensor Technologies.

One notable publication by Gerard Downey is titled "Development of chemometric models using Vis-NIR and Raman spectral data fusion for assessment of infant formula storage temperature and time", published in 2020 in the journal Innovative Food Science & Emerging Technologies. This paper has garnered attention within the scientific community with 23 citations.

Frequent coauthors collaborating with Downey include:

  • Xiao Wang
  • Carlos Esquerre
  • Lisa E. Henihan
  • D.J. O'Callaghan
  • Colm P. O'Donnell

Publications predominantly appear in Innovative Food Science & Emerging Technologies, which is the primary venue recorded.

Gerard Downey has been recognized as a Member of the Association of American Physicians.

Best Publications

  • Hyperspectral imaging – an emerging process analytical tool for food quality and safety control

    A.A. Gowen;C.P. O'Donnell;P.J. Cullen;G. Downey

  • Recent technological advances for the determination of food authenticity

    Linda M. Reid;Colm P. O'Donnell;Gerard Downey

  • Breaking with trends in pre-processing?

    Jasper Engel;Jan Gerretzen;Ewa Szymańska;Jeroen J. Jansen

  • Mid-infrared spectroscopy coupled with chemometrics: a tool for the analysis of intact food systems and the exploration of their molecular structure-quality relationships - a review

    Romdhane Karoui;Gerard Downey;Christophe Blecker

  • Effect of thermal and high pressure processing on antioxidant activity and instrumental colour of tomato and carrot purées

    Ankit Patras;Nigel Brunton;Sara Da Pieve;Francis Butler

  • Multivariate class modeling for the verification of food-authenticity claims

    Paolo Oliveri;Gerard Downey

  • Detecting and quantifying sunflower oil adulteration in extra virgin olive oils from the eastern mediterranean by visible and near-infrared spectroscopy

    Gerard Downey;Peter Mcintyre;Antony N. Davies

  • Application of principal component and hierarchical cluster analysis to classify fruits and vegetables commonly consumed in Ireland based on in vitro antioxidant activity

    Ankit Patras;Nigel P. Brunton;Gerard Downey;Ashish Rawson

  • Preventing over‐fitting in PLS calibration models of near‐infrared (NIR) spectroscopy data using regression coefficients

    A. A. Gowen;G. Downey;G. Downey;C. Esquerre;C. Esquerre;C. P. O'Donnell

  • Hyperspectral imaging combined with principal component analysis for bruise damage detection on white mushrooms (Agaricus bisporus)

    A. A. Gowen;C. P. O’Donnell;Masoud Taghizadeh;P. J. Cullen

  • Near- and Mid-Infrared Spectroscopies in Food Authentication: Coffee Varietal Identification

    Gerard Downey;Romain Briandet;Reginald H. Wilson;E. Katherine Kemsley

  • Food and food ingredient authentication by mid-infrared spectroscopy and chemometrics

    Gerard Downey

  • Application of Near and Mid-Infrared Spectroscopy to Determine Cheese Quality and Authenticity

    Tony Woodcock;Tony Woodcock;Colette C. Fagan;Colm P. O’Donnell;Gerard Downey

  • A Review of near Infrared Spectroscopy in Muscle Food Analysis: 2005–2010

    Jittima Weeranantanaphan;Gerard Downey;Paul Allen;Da-Wen Sun

  • Preliminary contribution to the characterisation of artisanal honey produced on the island of Ireland by palynological and physico-chemical data.

    Gerard Downey;Karen Hussey;J. Daniel Kelly;Thomas F. Walshe

  • Simultaneous data pre-processing and SVM classification model selection based on a parallel genetic algorithm applied to spectroscopic data of olive oils.

    Olivier Devos;Gerard Downey;Ludovic Duponchel

  • Non-destructive prediction of selected quality attributes of beef by near-infrared reflectance spectroscopy between 750 and 1098 nm.

    C.E. Byrne;G. Downey;D.J. Troy;D.J. Buckley

  • Better Quality Food and Beverages: The Role of near Infrared Spectroscopy:

    Tony Woodcock;Gerrard Downey;Colm P. O'Donnell

  • Rapid Non-destructive Detection of Spoilage of Intact Chicken Breast Muscle Using Near-infrared and Fourier Transform Mid-infrared Spectroscopy and Multivariate Statistics

    Dimitris Alexandrakis;Dimitris Alexandrakis;Gerard Downey;Amalia G. M. Scannell

  • Review: Authentication of food and food ingredients by near infrared spectroscopy

    Gerard Downey

  • Initial Study of Honey Adulteration by Sugar Solutions Using Midinfrared (MIR) Spectroscopy and Chemometrics

    J F Daniel Kelly;Gerard Downey;Vanessa Fouratier

  • Detection of honey adulteration by addition of fructose and glucose using near infrared transflectance spectroscopy

    Gerard Downey;Vanessa Fouratier;J. Daniel Kelly

  • Detection of sugar adulterants in apple juice using fourier transform infrared spectroscopy and chemometrics.

    J. F. Kelly;Gerard Downey

  • Geographical classification of honey samples by near-infrared spectroscopy: a feasibility study.

    Tony Woodcock;Gerard Downey;J. Daniel Kelly;Colm O’Donnell

Frequent Co-Authors

Colm P. O'Donnell
Colm P. O'Donnell University College Dublin
Declan J. Troy
Declan J. Troy Teagasc - The Irish Agriculture and Food Development Authority
Nigel P. Brunton
Nigel P. Brunton University College Dublin
Patrick J. Cullen
Patrick J. Cullen University of Sydney
James M. Harnly
James M. Harnly United States Department of Agriculture
Lutgarde M. C. Buydens
Lutgarde M. C. Buydens Radboud University
Da-Wen Sun
Da-Wen Sun University College Dublin
Frank J. Monahan
Frank J. Monahan University College Dublin
Torres Sweeney
Torres Sweeney University College Dublin
Olaf Schmidt
Olaf Schmidt University College Dublin

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 not only to traditional scientific roles but also to diverse career paths that blend science with other fields. For those looking to enhance their qualifications without disrupting their current lifestyle, exploring various online degree options can be highly beneficial. For example, considering an criminal justice associate degree online can complement analytical skills developed in chemistry, especially for careers involving regulatory compliance and forensic analysis.

Cost is a significant factor when pursuing online education. Understanding the criminal justice degree price helps prospective students budget effectively and compare programs that offer the best value.

Additionally, chemistry graduates can branch into specialized roles such as pharmaceutical sales. Knowing how much do pharmaceutical reps make provides insight into the financial benefits and career progression in this field.

For those interested in legal aspects related to science, exploring the types of paralegals can help identify roles that support scientific patent law, environmental regulations, and compliance. These pathways illustrate the versatility of a Chemistry background and the value of online degrees in building a successful, interdisciplinary career.

Best Scientists Citing Gerard Downey

Trending Scientists

Recently Published Articles