Volker Hagen

4.5k total citations
88 papers, 3.6k citations indexed

About

Volker Hagen is a scholar working on Materials Chemistry, Organic Chemistry and Molecular Biology. According to data from OpenAlex, Volker Hagen has authored 88 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Materials Chemistry, 33 papers in Organic Chemistry and 30 papers in Molecular Biology. Recurrent topics in Volker Hagen's work include Photochromic and Fluorescence Chemistry (24 papers), Photoreceptor and optogenetics research (12 papers) and Neurobiology and Insect Physiology Research (12 papers). Volker Hagen is often cited by papers focused on Photochromic and Fluorescence Chemistry (24 papers), Photoreceptor and optogenetics research (12 papers) and Neurobiology and Insect Physiology Research (12 papers). Volker Hagen collaborates with scholars based in Germany, United States and Switzerland. Volker Hagen's co-authors include Jürgen Bendig, U. Benjamin Kaupp, Reinhard Schmidt, Burkhard Wiesner, Stephan Frings, Daniel Geißler, Ingo Weyand, Michael Beyermann, Peter Pohl and Yuri N. Antonenko and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Volker Hagen

84 papers receiving 3.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Volker Hagen Germany 38 1.6k 1.2k 1.2k 974 426 88 3.6k
Astrid M. Müller United States 30 2.0k 1.3× 292 0.2× 319 0.3× 470 0.5× 514 1.2× 62 5.7k
Yoshiro Tatsu Japan 26 701 0.4× 393 0.3× 892 0.8× 240 0.2× 444 1.0× 68 2.5k
Toshiaki Furuta Japan 27 1.5k 0.9× 872 0.7× 1.3k 1.1× 985 1.0× 514 1.2× 80 3.1k
Kyle R. Gee United States 37 814 0.5× 687 0.6× 2.4k 2.1× 978 1.0× 376 0.9× 86 5.0k
Kunio Hirata Japan 44 1.1k 0.7× 1.4k 1.2× 3.7k 3.2× 328 0.3× 233 0.5× 117 5.8k
Olivier Schaad Switzerland 34 347 0.2× 455 0.4× 2.0k 1.7× 235 0.2× 51 0.1× 50 4.7k
Noboru Yumoto Japan 34 447 0.3× 1.1k 0.9× 2.2k 1.9× 266 0.3× 165 0.4× 110 3.6k
Kotaro Oka Japan 35 563 0.4× 797 0.7× 1.5k 1.3× 165 0.2× 297 0.7× 176 4.0k
Arnd Pralle United States 24 1.0k 0.7× 616 0.5× 2.2k 1.9× 340 0.3× 1.4k 3.3× 47 5.3k
Andrea Pappalardo Italy 34 890 0.6× 89 0.1× 790 0.7× 983 1.0× 231 0.5× 137 3.3k

Countries citing papers authored by Volker Hagen

Since Specialization
Citations

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

Fields of papers citing papers by Volker Hagen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Volker Hagen

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

All Works

20 of 20 papers shown
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Hagen, Volker, et al.. (2011). Functional imaging within individual pain fibres ex vivo with optical microscopy. Journal of Neuroscience Methods. 198(2). 274–279. 7 indexed citations
4.
Beyermann, Michael, et al.. (2009). Competition between cleavage and decarboxylation in photolysis of α-carboxy-2-nitrobenzyl protected cysteine derivatives. Chemical Communications. 3255–3255. 9 indexed citations
5.
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Gilbert, Daniel F., et al.. (2006). Caged Capsaicins: New Tools for the Examination of TRPV1 Channels in Somatosensory Neurons. ChemBioChem. 8(1). 89–97. 52 indexed citations
7.
Eckhard, Kathrin, Oliver Schlüter, Volker Hagen, et al.. (2004). Spatially resolved mass spectrometry as a fast semi-quantitative tool for testing heterogeneous catalyst libraries under reducing stagnant-point flow conditions. Applied Catalysis A General. 281(1-2). 115–120. 7 indexed citations
8.
Kaupp, U. Benjamin, Johannes Solzin, Eilo Hildebrand, et al.. (2003). The signal flow and motor response controling chemotaxis of sea urchin sperm. Nature Cell Biology. 5(2). 109–117. 173 indexed citations
9.
Matsumoto, Midori, Johannes Solzin, Volker Hagen, et al.. (2003). A sperm-activating peptide controls a cGMP-signaling pathway in starfish sperm☆. Developmental Biology. 260(2). 314–324. 76 indexed citations
10.
Hagen, Volker, Jürgen Bendig, Stephan Frings, et al.. (2001). Highly Efficient and Ultrafast Phototriggers for cAMP and cGMP by Using Long-Wavelength UV/Vis-Activation. Angewandte Chemie International Edition. 40(6). 1045–1048. 137 indexed citations
11.
Hagen, Volker, Jürgen Bendig, Stephan Frings, et al.. (2001). Langwellig UV/Vis-anregbare, hocheffiziente und ultraschnelle Phototrigger für cAMP und cGMP. Angewandte Chemie. 113(6). 1077–1080. 28 indexed citations
12.
Kuri, G., G. Materlik, Volker Hagen, & R. Wiesendanger. (2001). Surface morphology of MgO (100) crystals implanted with MeV Al+ and Al2+ ions. Applied Physics A. 73(3). 265–271. 4 indexed citations
13.
Hackos, David H., et al.. (2000). Fraction of the Dark Current Carried by Ca2+ through Cgmp-Gated Ion Channels of Intact Rod and Cone Photoreceptors. The Journal of General Physiology. 116(6). 735–754. 39 indexed citations
14.
Frings, Stephan, et al.. (1998). Characterization of Ether-à-go-go Channels Present in Photoreceptors Reveals Similarity to IKx, a K+ Current in Rod Inner Segments. The Journal of General Physiology. 111(4). 583–599. 73 indexed citations
15.
Roloff, Birgit, Michael Beyermann, Margitta Dathe, et al.. (1995). The effect of dibenzofuran substitutions in corticotropin-releasing factor. Letters in Peptide Science. 2(3-4). 209–211. 1 indexed citations
16.
Hagen, Volker. (1991). Overview: Present Developments in Cardiotonic Agents. 1(5). 735–746. 1 indexed citations
17.
Hagen, Volker, et al.. (1990). Potentielle Kardiotonika. VIII, Mitteilung5 : 2-Acyloxyalkylamino-, 2-Acyloxyalkoxy- und 2-Acylaminoalkylamino-3-cyan-5-(pyrid-4-yl) pyridine. Pharmazie. 45(5). 343–345. 2 indexed citations
18.
Hagen, Volker, et al.. (1968). Darstellung und Reaktionen der Silole. Zeitschrift für Chemie. 8(3). 114–114. 5 indexed citations
19.
Hagen, Volker, et al.. (1967). Darstellung und Reaktionen der Silole. Zeitschrift für Chemie. 7(9). 353–354. 13 indexed citations
20.
Hagen, Volker, et al.. (1966). Über die SiN‐Bindung, XXII. Die Darstellung von N.N‐Bis‐trimethylsilyl‐aminen. Chemische Berichte. 99(3). 776–779. 47 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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