Robert A. Freitas

2.7k total citations
47 papers, 1.6k citations indexed

About

Robert A. Freitas is a scholar working on Biomedical Engineering, Astronomy and Astrophysics and Materials Chemistry. According to data from OpenAlex, Robert A. Freitas has authored 47 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Biomedical Engineering, 9 papers in Astronomy and Astrophysics and 9 papers in Materials Chemistry. Recurrent topics in Robert A. Freitas's work include Nanotechnology research and applications (11 papers), Planetary Science and Exploration (7 papers) and Space Science and Extraterrestrial Life (7 papers). Robert A. Freitas is often cited by papers focused on Nanotechnology research and applications (11 papers), Planetary Science and Exploration (7 papers) and Space Science and Extraterrestrial Life (7 papers). Robert A. Freitas collaborates with scholars based in United States, Portugal and Brazil. Robert A. Freitas's co-authors include Ralph C. Merkle, Adriano Cavalcanti, F. Valdés, Tad Hogg, Bijan Shirinzadeh, L. C. Kretly, Berhane Temelso, C. David Sherrill, Jingping Peng and Wolfram Erlhagen and has published in prestigious journals such as Nature, The Journal of Physical Chemistry A and The International Journal of Robotics Research.

In The Last Decade

Robert A. Freitas

43 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert A. Freitas United States	18	676	331	230	229	171	47	1.6k
Meinhard Schilling Germany	28	1.6k 2.3×	754 2.3×	340 1.5×	369 1.6×	90 0.5×	165	2.5k
Anna Wang Australia	23	298 0.4×	280 0.8×	203 0.9×	42 0.2×	112 0.7×	65	1.3k
Hiroaki Kobayashi Japan	25	266 0.4×	330 1.0×	276 1.2×	86 0.4×	36 0.2×	156	2.0k
Konstantin I. Morozov Israel	26	1.6k 2.3×	389 1.2×	229 1.0×	1.2k 5.3×	31 0.2×	59	2.4k
Matthias F. Schneider Germany	25	531 0.8×	729 2.2×	306 1.3×	212 0.9×	11 0.1×	71	2.4k
Atsushi Yoshizawa Japan	29	418 0.6×	330 1.0×	851 3.7×	22 0.1×	69 0.4×	208	3.4k
Jae Hun Kim South Korea	29	868 1.3×	384 1.2×	553 2.4×	86 0.4×	31 0.2×	129	2.9k
H. E. Horng Taiwan	26	1.2k 1.8×	371 1.1×	429 1.9×	381 1.7×	20 0.1×	139	2.8k
Toshihiro Kawakatsu Japan	30	493 0.7×	676 2.0×	1.6k 6.7×	392 1.7×	17 0.1×	180	3.1k
Ying Chen China	28	500 0.7×	118 0.4×	321 1.4×	156 0.7×	18 0.1×	145	2.2k

Countries citing papers authored by Robert A. Freitas

Since Specialization

Citations

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

Fields of papers citing papers by Robert A. Freitas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert A. Freitas. 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 Robert A. Freitas. The network helps show where Robert A. Freitas may publish in the future.

Co-authorship network of co-authors of Robert A. Freitas

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

All Works

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20 of 20 papers shown

Solano, E., A. Streblyanska, Stephen Bruehl, et al.. (2025). Aligned, Multiple-transient Events in the First Palomar Sky Survey. Publications of the Astronomical Society of the Pacific. 137(10). 104504–104504.

Chakravarthy, Krishnan, Ioan Opriş, Mikhail Lebedev, et al.. (2019). Human Brain/Cloud Interface. Frontiers in Neuroscience. 13. 112–112. 51 indexed citations

Merkle, Ralph C., et al.. (2018). Mechanical Computing Systems Using Only Links and Rotary Joints. Journal of Mechanisms and Robotics. 10(6). 26 indexed citations

Erlhagen, Wolfram, et al.. (2016). Human Connectome Mapping and Monitoring Using Neuronanorobots. 26(1). 1–25. 2 indexed citations

Erlhagen, Wolfram, et al.. (2015). Action Potential Monitoring Using Neuronanorobots: Neuroelectric Nanosensors. RepositóriUM (Universidade do Minho). 1(2). 20–41. 2 indexed citations

Hogg, Tad & Robert A. Freitas. (2009). Chemical power for microscopic robots in capillaries. Nanomedicine Nanotechnology Biology and Medicine. 6(2). 298–317. 17 indexed citations

Freitas, Robert A.. (2009). Meeting the Challenge of Building Diamondoid Medical Nanorobots. The International Journal of Robotics Research. 28(4). 548–557. 3 indexed citations

Freitas, Robert A. & Ralph C. Merkle. (2008). A Minimal Toolset for Positional Diamond Mechanosynthesis. Journal of Computational and Theoretical Nanoscience. 5(5). 760–861. 6 indexed citations

Cavalcanti, Adriano, Bijan Shirinzadeh, Robert A. Freitas, & L. C. Kretly. (2007). Medical Nanorobot Architecture Based on Nanobioelectronics. Recent Patents on Nanotechnology. 1(1). 1–10. 46 indexed citations

10.

Freitas, Robert A.. (2006). Pharmacytes: An Ideal Vehicle for Targeted Drug Delivery. Journal of Nanoscience and Nanotechnology. 6(9). 2769–2775. 101 indexed citations

11.

Peng, Jingping, Robert A. Freitas, Ralph C. Merkle, et al.. (2006). Theoretical Analysis of Diamond Mechanosynthesis. Part III. Positional C 2 Deposition on Diamond C(110) Surfac eUsin gSi/Ge/Sn-Base dDime rPlacemen tTools. 2 indexed citations

12.

Freitas, Robert A.. (2005). What is nanomedicine?. Nanomedicine Nanotechnology Biology and Medicine. 1(1). 2–9. 305 indexed citations

13.

Freitas, Robert A.. (2005). Microbivores: Artificial Mechanical Phagocytes using Digest and Discharge Protocol. 40 indexed citations

14.

Merkle, Ralph C. & Robert A. Freitas. (2003). Theoretical Analysis of a Carbon-Carbon Dimer Placement Tool for Diamond Mechanosynthesis. Journal of Nanoscience and Nanotechnology. 3(4). 319–324. 15 indexed citations

15.

Freitas, Robert A.. (2003). Nanomedicine, Volume IIA. 56 indexed citations

16.

Cavalcanti, Adriano & Robert A. Freitas. (2002). Autonomous Multi-robot Sensor-Based Cooperation for Nanomedicine. International Journal of Nonlinear Sciences and Numerical Simulation. 3(3-4). 24 indexed citations

17.

Freitas, Robert A.. (2001). Travels to the Nanoworld: Miniature Machinery in Nature and Technology. Michael Gross. The Quarterly Review of Biology. 76(4). 486–486. 2 indexed citations

18.

Freitas, Robert A.. (1999). Nanomedicine, Volume I: Basic Capabilities. 265 indexed citations

19.

Freitas, Robert A. & F. Valdés. (1985). The search for extraterrestrial artifacts (SETA). Acta Astronautica. 12(12). 1027–1034. 26 indexed citations

20.

Freitas, Robert A.. (1983). Naming extraterrestrial life. Nature. 301(5896). 106–106. 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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