World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
60
Citations
12091
World Ranking
9750
National Ranking
2742

John F. Robyt 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 John F. Robyt 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: 184 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

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

John F. Robyt 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 John F. Robyt 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: 60 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

John F. Robyt was affiliated with Iowa State University in the United States. Their academic career was connected to this institution, where they conducted their research and contributed to scientific knowledge within their domain.

No specific information on recent papers, frequent co-authors, publication venues, book publishers, fields of study, subfields, or main topics of work is available for John F. Robyt in the provided data.

There are no records of awards or honors received by John F. Robyt in the source data.

Though detailed content on research contributions is not provided, the association with a well-established university indicates involvement in scholarly activities that contributed to their field over time.

Best Publications

  • Anthology of Starch Granule Morphology by Scanning Electron Microscopy

    Jay-Lin Jane;Tunyawat Kasemsuwan;Sharon Leas;Henzy Zobel

  • MINIATURIZATION OF THREE CARBOHYDRATE ANALYSES USING A MICROSAMPLE PLATE READER

    Jeffrey D. Fox;John F. Robyt

  • Structure studies of amylose-V complexes and retrograded amylose by action of alpha amylases, and a new method for preparing amylodextrins

    Jay-Lin Jane;John F. Robyt

  • Multiple attack hypothesis of α-amylase action: Action of porcine pancreatic, human salivary, and Aspergillus oryzae α-amylases

    John F. Robyt;Dexter French

  • The Action Pattern of Porcine Pancreatic α-Amylase in Relationship to the Substrate Binding Site of the Enzyme

    John F. Robyt;Dexter French

  • Action pattern and specificity of an amylase from Bacillus subtilis.

    John Robyt;Dexter French

  • Oxidation of Primary Alcohol Groups of Naturally Occurring Polysaccharides with 2,2,6,6-Tetramethyl-1-Piperidine Oxoammonium Ion

    Pahn S. Chang;John F. Robyt

  • Isolation and partial characterization of an extracellular glucansucrase from Leuconostoc mesenteroides NRRL B-1355 that synthesizes an alternating (1→6), (1→3)-α-d-glucan

    Gregory L. Côté;John F. Robyt

  • Relative, quantitative effects of acceptors in the reaction of Leuconostoc mesenteroides B-512F dextransucrase☆

    John F. Robyt;Steven H. Eklund

  • The mechanism of dextransucrase action. Direction of dextran biosynthesis.

    John F. Robyt;Barbara K. Kimble;Timothy F. Walseth

  • The mechanism of acceptor reactions of Leuconostoc mesenteroides B-512F dextransucrase.

    John F. Robyt;Timothy F. Walseth

  • Reaction of protein disulfide groups with Ellman's reagent: A case study of the number of sulfhydryl and disulfide groups in Aspergillus oryzae α-amylase, papain, and lysozyme

    John F. Robyt;Rosalie J. Ackerman;Carol G. Chittenden

  • Comparative study of the inhibition of alpha-glucosidase, alpha-amylase, and cyclomaltodextrin glucanosyltransferase by acarbose, isoacarbose, and acarviosine-glucose.

    Myo Jeong Kim;Soo Bok Lee;Hee Seob Lee;Su Yong Lee

  • Specificity of yeast (Saccharomyces cerevisiae) in removing carbohydrates by fermentation.

    Seung-Heon Yoon;Rupendra Mukerjea;John F. Robyt

  • REACTION OF ENZYMES WITH STARCH GRANULES : KINETICS AND PRODUCTS OF THE REACTION WITH GLUCOAMYLASE

    Atsuo Kimura;John F. Robyt

  • Mechanisms in the glucansucrase synthesis of polysaccharides and oligosaccharides from sucrose.

    John F. Robyt

  • Starch: Structure, Properties, Chemistry, and Enzymology

    Unknown

  • Isolation, purification, and characterization of a maltotetraose-producing amylase from Pseudomonas stutzeri.

    John F. Robyt;Rosalie J. Ackerman

  • Production, purification, and properties of dextransucrase from Leuconostoc mesenteroides NRRL B-512F.

    John F. Robyt;Timothy F. Walseth

  • Separation and quantitative determination of nanogram quantities of maltodextrins and isomaltodextrins by thin-layer chromatography

    John F. Robyt;Rupendra Mukerjea

  • Multiple attack and polarity of action of porcine pancreatic α-amylase

    John F. Robyt;Dexter French

Frequent Co-Authors

Dexter French
Dexter French Iowa State University
Motomitsu Kitaoka
Motomitsu Kitaoka Niigata University
Jay-lin Jane
Jay-lin Jane Iowa State University
Sangryeol Ryu
Sangryeol Ryu Seoul National University
Walter R. Fehr
Walter R. Fehr Iowa State University
Peter J. Reilly
Peter J. Reilly Iowa State University
Sang-Ho Yoo
Sang-Ho Yoo Sejong University
Jin-Ho Seo
Jin-Ho Seo Seoul National University
Ho Jae Han
Ho Jae Han Seoul National University
Cheon-Seok Park
Cheon-Seok Park Kyung Hee University

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