Rita Calheiros

840 total citations
18 papers, 706 citations indexed

About

Rita Calheiros is a scholar working on Organic Chemistry, Molecular Biology and Biochemistry. According to data from OpenAlex, Rita Calheiros has authored 18 papers receiving a total of 706 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Organic Chemistry, 6 papers in Molecular Biology and 4 papers in Biochemistry. Recurrent topics in Rita Calheiros's work include Free Radicals and Antioxidants (5 papers), Phytochemicals and Antioxidant Activities (4 papers) and Polyamine Metabolism and Applications (4 papers). Rita Calheiros is often cited by papers focused on Free Radicals and Antioxidants (5 papers), Phytochemicals and Antioxidant Activities (4 papers) and Polyamine Metabolism and Applications (4 papers). Rita Calheiros collaborates with scholars based in Portugal, Italy and United States. Rita Calheiros's co-authors include M. Paula M. Marques, Fernanda Borges, Jorge Garrido, Nuno Milhazes, Valentina Battaglia, Antonio Toninello, Enzo Agostinelli, Francisco Gil, G. Tempera and Silvia Grancara and has published in prestigious journals such as Analytical Chemistry, Biochemical Journal and Analytica Chimica Acta.

In The Last Decade

Rita Calheiros

18 papers receiving 698 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Rita Calheiros Portugal 14 331 195 78 71 69 18 706
Zoltán Béni Hungary 15 214 0.6× 199 1.0× 51 0.7× 43 0.6× 63 0.9× 54 614
Clotilde Ferroud France 19 284 0.9× 317 1.6× 88 1.1× 57 0.8× 37 0.5× 37 924
Irina Vedernikova Belgium 9 207 0.6× 222 1.1× 145 1.9× 60 0.8× 102 1.5× 15 610
Sirous Ghobadi Iran 22 696 2.1× 165 0.8× 50 0.6× 120 1.7× 116 1.7× 58 1.2k
Haruo Okajima Japan 14 273 0.8× 248 1.3× 71 0.9× 58 0.8× 69 1.0× 25 702
Sónia M. Fiuza Portugal 15 339 1.0× 254 1.3× 116 1.5× 80 1.1× 67 1.0× 26 997
L. M. Viranga Tillekeratne United States 19 481 1.5× 359 1.8× 21 0.3× 41 0.6× 56 0.8× 80 1.2k
Peter Lemmen Germany 18 229 0.7× 270 1.4× 37 0.5× 75 1.1× 69 1.0× 57 833
R. Maurus Canada 18 589 1.8× 123 0.6× 76 1.0× 47 0.7× 93 1.3× 21 1.1k
Nicola Culeddu Italy 17 207 0.6× 242 1.2× 46 0.6× 124 1.7× 55 0.8× 44 677

Countries citing papers authored by Rita Calheiros

Since Specialization
Citations

This map shows the geographic impact of Rita Calheiros'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 Rita Calheiros with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rita Calheiros more than expected).

Fields of papers citing papers by Rita Calheiros

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Rita Calheiros. 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 Rita Calheiros. The network helps show where Rita Calheiros may publish in the future.

Co-authorship network of co-authors of Rita Calheiros

This figure shows the co-authorship network connecting the top 25 collaborators of Rita Calheiros. A scholar is included among the top collaborators of Rita Calheiros 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 Rita Calheiros. Rita Calheiros 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.
Serafim, Teresa L., Filipa S. Carvalho, M. Paula M. Marques, et al.. (2011). Lipophilic Caffeic and Ferulic Acid Derivatives Presenting Cytotoxicity against Human Breast Cancer Cells. Chemical Research in Toxicology. 24(5). 763–774. 110 indexed citations
2.
Paiva‐Martins, Fátima, V. H. Rodrigues, Rita Calheiros, & M. Paula M. Marques. (2010). Characterization of antioxidant olive oil biophenols by spectroscopic methods. Journal of the Science of Food and Agriculture. 91(2). 309–314. 32 indexed citations
3.
Duarte, Iola F., Joana Marques, Cláudia Rocha, et al.. (2009). Analytical Approaches toward Successful Human Cell Metabolome Studies by NMR Spectroscopy. Analytical Chemistry. 81(12). 5023–5032. 52 indexed citations
4.
Agostinelli, Enzo, M. Paula M. Marques, Rita Calheiros, et al.. (2009). Polyamines: fundamental characters in chemistry and biology. Amino Acids. 38(2). 393–403. 166 indexed citations
5.
Garrido, E. Manuela, Jorge Garrido, Rita Calheiros, M. Paula M. Marques, & Fernanda Borges. (2009). Fluoxetine and Norfluoxetine Revisited: New Insights into the Electrochemical and Spectroscopic Properties. The Journal of Physical Chemistry A. 113(36). 9934–9944. 25 indexed citations
6.
Calheiros, Rita, Fernanda Borges, & M. Paula M. Marques. (2009). Conformational behaviour of biologically active ferulic acid derivatives. Journal of Molecular Structure THEOCHEM. 913(1-3). 146–156. 13 indexed citations
7.
Machado, Nelson, Rita Calheiros, Alexandra Gaspar, et al.. (2008). Antioxidant phenolic esters with potential anticancer activity: solution equilibria studied by Raman spectroscopy. Journal of Raman Spectroscopy. 40(1). 80–85. 19 indexed citations
8.
Marques, M. Paula M., Francisco Gil, Rita Calheiros, et al.. (2007). Biological activity of antitumoural MGBG: the structural variable. Amino Acids. 34(4). 555–564. 6 indexed citations
9.
Machado, Nelson, Rita Calheiros, Sónia M. Fiuza, et al.. (2007). Phenolic esters with potential anticancer activity - the structural variable. Journal of Molecular Modeling. 13(8). 865–877. 20 indexed citations
10.
Milhazes, Nuno, Pedro Martins, Eugenio Uriarte, et al.. (2007). Electrochemical and spectroscopic characterisation of amphetamine-like drugs: Application to the screening of 3,4-methylenedioxymethamphetamine (MDMA) and its synthetic precursors. Analytica Chimica Acta. 596(2). 231–241. 47 indexed citations
11.
Calheiros, Rita, Nelson Machado, Sónia M. Fiuza, et al.. (2007). Antioxidant phenolic esters with potential anticancer activity: A Raman spectroscopy study. Journal of Raman Spectroscopy. 39(1). 95–107. 42 indexed citations
12.
Milhazes, Nuno, Rita Calheiros, M. Paula M. Marques, et al.. (2006). β-Nitrostyrene derivatives as potential antibacterial agents: A structure–property–activity relationship study. Bioorganic & Medicinal Chemistry. 14(12). 4078–4088. 70 indexed citations
13.
Toninello, Antonio, Valentina Battaglia, Mauro Salvi, Rita Calheiros, & M. Paula M. Marques. (2006). Structural characterization of agmatine at physiological conditions. Structural Chemistry. 17(2). 163–175. 19 indexed citations
14.
Salvi, Mauro, Valentina Battaglia, Sebastiano Colombatto, et al.. (2006). Agmatine is transported into liver mitochondria by a specific electrophoretic mechanism. Biochemical Journal. 396(2). 337–345. 26 indexed citations
15.
Marques, M. Paula M., Fernanda Borges, Joana Beatriz Sousa, et al.. (2006). Cytotoxic and COX-2 Inhibition Properties of Hydroxycinnamic Derivatives. Letters in Drug Design & Discovery. 3(5). 316–320. 11 indexed citations
16.
Sousa, Joana Beatriz, et al.. (2005). Conformational analysis of the potential anticancer agent ethyl trihydroxycinnamate—A combined raman spectroscopy and ab initio study. Journal of Molecular Structure. 783(1-3). 122–135. 18 indexed citations
17.
Milhazes, Nuno, Fernanda Borges, Rita Calheiros, & M. Paula M. Marques. (2004). Identification of synthetic precursors of amphetamine-like drugs using Raman spectroscopy and ab initio calculations: β-Methyl-β-nitrostyrene derivatives. The Analyst. 129(11). 1106–1117. 19 indexed citations
18.
Calheiros, Rita, Nuno Milhazes, Fernanda Borges, & M. Paula M. Marques. (2004). β-Nitrostyrene derivatives—a conformational study by combined Raman spectroscopy and ab initio MO calculations. Journal of Molecular Structure. 692(1-3). 91–106. 11 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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