David E. Portwood

502 total citations
18 papers, 346 citations indexed

About

David E. Portwood is a scholar working on Molecular Biology, Spectroscopy and Plant Science. According to data from OpenAlex, David E. Portwood has authored 18 papers receiving a total of 346 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Molecular Biology, 3 papers in Spectroscopy and 3 papers in Plant Science. Recurrent topics in David E. Portwood's work include CRISPR and Genetic Engineering (5 papers), RNA and protein synthesis mechanisms (5 papers) and RNA Interference and Gene Delivery (4 papers). David E. Portwood is often cited by papers focused on CRISPR and Genetic Engineering (5 papers), RNA and protein synthesis mechanisms (5 papers) and RNA Interference and Gene Delivery (4 papers). David E. Portwood collaborates with scholars based in United Kingdom, Slovakia and Switzerland. David E. Portwood's co-authors include Peter M. Kilby, Mark J. Dickman, Alison O. Nwokeoji, John Eagles, Susan J. Fairweather‐Tait, Stephen Brown, Mark Earll, Mark Seymour, Ron Self and Klaus G. Heumann and has published in prestigious journals such as Journal of Biological Chemistry, Analytical Chemistry and American Journal of Clinical Nutrition.

In The Last Decade

David E. Portwood

18 papers receiving 329 citations

Peers

David E. Portwood
Thorben Nawrath Germany
Ellen De Paepe Belgium
Daniela Meloni Italy
Yujie Shi China
Yawen Zhang China
J.L. Fidalgo Rodríguez Spain
Sanjay N. Harke India
Huimin Lin China
Matteo Calcagnile Italy
Richa Anand India
Thorben Nawrath Germany
David E. Portwood
Citations per year, relative to David E. Portwood David E. Portwood (= 1×) peers Thorben Nawrath

Countries citing papers authored by David E. Portwood

Since Specialization
Citations

This map shows the geographic impact of David E. Portwood's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by David E. Portwood with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites David E. Portwood more than expected).

Fields of papers citing papers by David E. Portwood

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by David E. Portwood. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by David E. Portwood. The network helps show where David E. Portwood may publish in the future.

Co-authorship network of co-authors of David E. Portwood

This figure shows the co-authorship network connecting the top 25 collaborators of David E. Portwood. A scholar is included among the top collaborators of David E. Portwood based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with David E. Portwood. David E. Portwood is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

18 of 18 papers shown
1.
Dewulf, Nathalie de Lourdes Souza, et al.. (2022). Chemically modified dsRNA induces RNAi effects in insects in vitro and in vivo: A potential new tool for improving RNA-based plant protection. Journal of Biological Chemistry. 298(9). 102311–102311. 12 indexed citations
2.
Brown, Stephen, et al.. (2022). Strategies for the production of dsRNA biocontrols as alternatives to chemical pesticides. Frontiers in Bioengineering and Biotechnology. 10. 980592–980592. 46 indexed citations
3.
Nwokeoji, Alison O., Sandip Kumar, Peter M. Kilby, et al.. (2019). Analysis of long dsRNA produced in vitro and in vivo using atomic force microscopy in conjunction with ion-pair reverse-phase HPLC. The Analyst. 144(16). 4985–4994. 10 indexed citations
4.
Nwokeoji, Alison O., Mark Earll, Peter M. Kilby, David E. Portwood, & Mark J. Dickman. (2018). High resolution fingerprinting of single and double-stranded RNA using ion-pair reverse-phase chromatography. Journal of Chromatography B. 1104. 212–219. 7 indexed citations
5.
Kilby, Peter M., et al.. (2018). Quantification of dsRNA using stable isotope labeling dilution liquid chromatography/mass spectrometry. Rapid Communications in Mass Spectrometry. 32(7). 590–596. 5 indexed citations
6.
Nwokeoji, Alison O., Peter M. Kilby, David E. Portwood, & Mark J. Dickman. (2017). Accurate Quantification of Nucleic Acids Using Hypochromicity Measurements in Conjunction with UV Spectrophotometry. Analytical Chemistry. 89(24). 13567–13574. 57 indexed citations
7.
Nwokeoji, Alison O., et al.. (2016). Purification and characterisation of dsRNA using ion pair reverse phase chromatography and mass spectrometry. Journal of Chromatography A. 1484. 14–25. 36 indexed citations
8.
Nwokeoji, Alison O., Peter M. Kilby, David E. Portwood, & Mark J. Dickman. (2016). RNASwift: A rapid, versatile RNA extraction method free from phenol and chloroform. Analytical Biochemistry. 512. 36–46. 35 indexed citations
9.
Beisken, Stephan, Mark Earll, David E. Portwood, Mark Seymour, & Christoph Steinbeck. (2014). MassCascade: Visual Programming for LC‐MS Data Processing in Metabolomics. Molecular Informatics. 33(4). 307–310. 10 indexed citations
10.
Beisken, Stephan, Mark Earll, Charles Baxter, et al.. (2014). Metabolic differences in ripening of Solanum lycopersicum ‘Ailsa Craig’ and three monogenic mutants. Scientific Data. 1(1). 140029–140029. 13 indexed citations
11.
Kende, Anikó, et al.. (2010). Target list building for volatile metabolite profiling of fruit. Journal of Chromatography A. 1217(43). 6718–6723. 16 indexed citations
12.
Portwood, David E., et al.. (1996). The aerobic soil degradation of spinosad ‐ a novel natural insect control agent. Journal of Environmental Science and Health Part B. 31(3). 477–484. 18 indexed citations
13.
Portwood, David E., et al.. (1995). Ultra-trace Analysis of Metosulam, a New Triazolopyrimidine Herbicide, in Soil Using LC-UV and TSP-LC-MS. International Journal of Environmental & Analytical Chemistry. 58(1-4). 93–101. 2 indexed citations
14.
Wolt, Jeffrey D., et al.. (1992). Anaerobic aquatic degradation of flumetsulam [N-(2,6-difluorophenyl)-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide]. Journal of Agricultural and Food Chemistry. 40(11). 2302–2308. 7 indexed citations
15.
Eagles, John, Susan J. Fairweather‐Tait, Fred A. Mellon, et al.. (1989). Comparison of fast‐atom bombardment, thermal ionization and inductively coupled plasma mass spectrometry for the measurement of 64 Zn/ 67 Zn stable isotopes in human nutrition studies. Rapid Communications in Mass Spectrometry. 3(6). 203–205. 7 indexed citations
16.
Fairweather‐Tait, Susan J., et al.. (1989). Iron and zinc absorption in human subjects from a mixed meal of extruded and nonextruded wheat bran and flour. American Journal of Clinical Nutrition. 49(1). 151–155. 37 indexed citations
17.
18.
Roepstorff, Peter, R. Self, John Eagles, Susan J. Fairweather‐Tait, & David E. Portwood. (1987). Annual Chemical Congress: analytical mass spectrometry. Analytical Proceedings. 24(12). 365–365. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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