Gea Speelmans

816 total citations
19 papers, 672 citations indexed

About

Gea Speelmans is a scholar working on Molecular Biology, Oncology and Astronomy and Astrophysics. According to data from OpenAlex, Gea Speelmans has authored 19 papers receiving a total of 672 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Molecular Biology, 5 papers in Oncology and 4 papers in Astronomy and Astrophysics. Recurrent topics in Gea Speelmans's work include Lipid Membrane Structure and Behavior (8 papers), Drug Transport and Resistance Mechanisms (5 papers) and Origins and Evolution of Life (4 papers). Gea Speelmans is often cited by papers focused on Lipid Membrane Structure and Behavior (8 papers), Drug Transport and Resistance Mechanisms (5 papers) and Origins and Evolution of Life (4 papers). Gea Speelmans collaborates with scholars based in Netherlands, Czechia and Hungary. Gea Speelmans's co-authors include Rutger W.H.M. Staffhorst, Ben de Kruijff, W N Konings, B. Poolman, Frits A. de Wolf, Ben de Kruijff, Wil N. Konings, J. Reedijk, Tjakko Abee and Gerrit Eggink and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Biochemistry and Journal of Bacteriology.

In The Last Decade

Gea Speelmans

19 papers receiving 651 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gea Speelmans Netherlands 15 430 114 81 74 73 19 672
John A. Karas Australia 22 594 1.4× 191 1.7× 65 0.8× 29 0.4× 62 0.8× 52 1.2k
Frank G. Pilkiewicz United States 15 259 0.6× 152 1.3× 157 1.9× 29 0.4× 35 0.5× 18 834
Suree Phutrakul Taiwan 15 610 1.4× 62 0.5× 34 0.4× 36 0.5× 117 1.6× 31 866
H.V. BRØNDSTED Denmark 14 277 0.6× 130 1.1× 246 3.0× 156 2.1× 57 0.8× 25 1.3k
Frank F. Davis United States 14 740 1.7× 68 0.6× 114 1.4× 21 0.3× 61 0.8× 36 1.1k
Purnananda Guptasarma India 18 766 1.8× 34 0.3× 103 1.3× 45 0.6× 117 1.6× 74 1.2k
Elisabeth Daub Canada 15 489 1.1× 33 0.3× 27 0.3× 33 0.4× 138 1.9× 20 801
Ken-ichi Fukuhara Japan 11 464 1.1× 120 1.1× 41 0.5× 33 0.4× 13 0.2× 36 800
Dakshinamurthy Rajalingam United States 16 538 1.3× 29 0.3× 93 1.1× 49 0.7× 52 0.7× 31 973
Michael A. Bryan United States 11 171 0.4× 38 0.3× 235 2.9× 54 0.7× 56 0.8× 20 608

Countries citing papers authored by Gea Speelmans

Since Specialization
Citations

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

Fields of papers citing papers by Gea Speelmans

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gea Speelmans

This figure shows the co-authorship network connecting the top 25 collaborators of Gea Speelmans. A scholar is included among the top collaborators of Gea Speelmans 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 Gea Speelmans. Gea Speelmans is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Luyer, Misha, Wim A. Buurman, M’hamed Hadfoune, et al.. (2005). Strain-Specific Effects of Probiotics on Gut Barrier Integrity following Hemorrhagic Shock. Infection and Immunity. 73(6). 3686–3692. 96 indexed citations
2.
Speelmans, Gea, et al.. (1998). Limonene bioconversion to high concentrations of a single and stable product, perillic acid, by a solvent-resistant Pseudomonas putida strain. Applied Microbiology and Biotechnology. 50(5). 538–544. 47 indexed citations
3.
Speelmans, Gea, Rutger W.H.M. Staffhorst, Kees Versluis, J. Reedijk, & Ben de Kruijff. (1997). Cisplatin Complexes with Phosphatidylserine in Membranes. Biochemistry. 36(34). 10545–10550. 58 indexed citations
4.
Speelmans, Gea, Rutger W.H.M. Staffhorst, & Ben de Kruijff. (1997). The Anionic Phospholipid-Mediated Membrane Interaction of the Anti-Cancer Drug Doxorubicin Is Enhanced by Phosphatidylethanolamine Compared to Other Zwitterionic Phospholipids. Biochemistry. 36(28). 8657–8662. 27 indexed citations
5.
Speelmans, Gea, et al.. (1996). Transport of the anti-cancer drug doxorubicin across cytoplasmic membranes and membranes composed of phospholipids derived from Escherichia coli occurs via a similar mechanism. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1284(2). 240–246. 25 indexed citations
6.
Speelmans, Gea, R.J.H. Grisel, Rutger W.H.M. Staffhorst, et al.. (1996). The interaction of the anti-cancer drug cisplatin with phospholipids is specific for negatively charged phospholipids and takes place at low chloride ion concentration. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1283(1). 60–66. 59 indexed citations
7.
Speelmans, Gea, B. Poolman, & W N Konings. (1995). Na+ as coupling ion in energy transduction in extremophilic Bacteria and Archaea. World Journal of Microbiology and Biotechnology. 11(1). 58–70. 20 indexed citations
8.
Speelmans, Gea, Rutger W.H.M. Staffhorst, Frits A. de Wolf, & Ben de Kruijff. (1995). Verapamil competes with doxorubicin for binding to anionic phospholipids resulting in increased internal concentrations and rates of passive transport of doxorubicin. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1238(2). 137–146. 24 indexed citations
9.
Speelmans, Gea, Rutger W.H.M. Staffhorst, Ben de Kruijff, & Frits A. de Wolf. (1994). Transport Studies of Doxorubicin in Model Membranes Indicate a Difference in Passive Diffusion across and Binding at the Outer and Inner Leaflet of the Plasma Membrane. Biochemistry. 33(46). 13761–13768. 105 indexed citations
10.
Speelmans, Gea, B. Poolman, Tjakko Abee, & W N Konings. (1994). The F- or V-type Na(+)-ATPase of the thermophilic bacterium Clostridium fervidus. Journal of Bacteriology. 176(16). 5160–5162. 14 indexed citations
11.
Speelmans, Gea, Frits A. de Wolf, Rutger W.H.M. Staffhorst, & Ben de Kruijff. (1994). Competition between verapamil and doxorubicin for binding to anionic phospholipids. Anti-Cancer Drugs. 5. 21–21. 1 indexed citations
12.
Lolkema, Juke S., Gea Speelmans, & Wil N. Konings. (1994). Na+-coupled versus H+-coupled energy transduction in bacteria. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1187(2). 211–215. 41 indexed citations
13.
Speelmans, Gea, et al.. (1993). Application of thermostable reaction centers from Chloroflexus aurantiacus as a protonmotive force generating system. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1142(3). 269–276. 1 indexed citations
14.
Speelmans, Gea, B. Poolman, & W N Konings. (1993). Amino acid transport in the thermophilic anaerobe Clostridium fervidus is driven by an electrochemical sodium gradient. Journal of Bacteriology. 175(7). 2060–2066. 35 indexed citations
15.
Speelmans, Gea, B. Poolman, Tjakko Abee, & W N Konings. (1993). Energy transduction in the thermophilic anaerobic bacterium Clostridium fervidus is exclusively coupled to sodium ions.. Proceedings of the National Academy of Sciences. 90(17). 7975–7979. 55 indexed citations
16.
Konings, Wouter, Berend Tolner, Gea Speelmans, et al.. (1992). Energy transduction and transport processes in thermophilic bacteria. Journal of Bioenergetics and Biomembranes. 24(6). 601–609. 20 indexed citations
17.
Tolner, Berend, et al.. (1992). SODIUM COUPLED TRANSPORT IN BACTERIA. 2 indexed citations
18.
Vrij, W de, et al.. (1990). Energy transduction and amino acid transport in thermophilic aerobic and fermentative bacteria. FEMS Microbiology Letters. 75(2-3). 183–200. 16 indexed citations
19.
Speelmans, Gea, W de Vrij, & Wil N. Konings. (1989). Characterization of amino acid transport in membrane vesicles from the thermophilic fermentative bacterium Clostridium fervidus. Journal of Bacteriology. 171(7). 3788–3795. 26 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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