R. Nakajima

4.4k total citations · 1 hit paper
36 papers, 869 citations indexed

About

R. Nakajima is a scholar working on Pollution, Industrial and Manufacturing Engineering and Astronomy and Astrophysics. According to data from OpenAlex, R. Nakajima has authored 36 papers receiving a total of 869 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Pollution, 12 papers in Industrial and Manufacturing Engineering and 10 papers in Astronomy and Astrophysics. Recurrent topics in R. Nakajima's work include Microplastics and Plastic Pollution (20 papers), Recycling and Waste Management Techniques (12 papers) and Galaxies: Formation, Evolution, Phenomena (9 papers). R. Nakajima is often cited by papers focused on Microplastics and Plastic Pollution (20 papers), Recycling and Waste Management Techniques (12 papers) and Galaxies: Formation, Evolution, Phenomena (9 papers). R. Nakajima collaborates with scholars based in Japan, United States and Germany. R. Nakajima's co-authors include Rachel Mandelbaum, G. M. Bernstein, Rafael Reyes, Masashi Tsuchiya, Katsunori Fujikura, Tomo Kitahashi, Hidetaka Nomaki, Christopher M. Hirata, James E. Gunn and Uroš Seljak and has published in prestigious journals such as Nature, Environmental Science & Technology and The Astrophysical Journal.

In The Last Decade

R. Nakajima

32 papers receiving 844 citations

Hit Papers

The distribution of subsurface microplastics in the ocean 2025 2026 2025 10 20 30 40
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. The distribution of subsurface microplastics in the ocean
    2025 41 citations Shiye Zhao, Karin Kvale et al. Nature profile →

Peers

R. Nakajima
J. Pelt Estonia
Tae‐Sun Kim South Korea
Meng Jin United States
Jiancheng Wang China
P. D. Atherton United Kingdom
Kevin Ho United States
Samuel W. Skillman United States
Young‐Jun Choi South Korea
David L. Block South Africa
Ying Xiong China
J. Pelt Estonia
R. Nakajima
Citations per year, relative to R. Nakajima R. Nakajima (= 1×) peers J. Pelt

Countries citing papers authored by R. Nakajima

Since Specialization
Citations

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

Fields of papers citing papers by R. Nakajima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Nakajima

This figure shows the co-authorship network connecting the top 25 collaborators of R. Nakajima. A scholar is included among the top collaborators of R. Nakajima 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 R. Nakajima. R. Nakajima 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
1.
Isobe, Noriyuki, Keiko Tanaka, Shun’ichi Ishii, et al.. (2025). Fully circular shapable transparent paperboard with closed-loop recyclability and marine biodegradability across shallow to deep sea. Science Advances. 11(15). eads2426–eads2426.
2.
Zhao, Shiye, Karin Kvale, Erik Zettler, et al.. (2025). The distribution of subsurface microplastics in the ocean. Nature. 641(8061). 51–61. 41 indexed citations breakdown →
3.
4.
Mishra, Pravakar, Takahito Ikenoue, R. Nakajima, et al.. (2025). Microplastic contamination in the western Arctic water column: A transition from pristine to polluted. Chemosphere. 385. 144577–144577. 1 indexed citations
5.
Singh, Nisha, Nitin Khandelwal, R. Nakajima, Amina K. Stoddart, & Graham A. Gagnon. (2025). Nanoplastic mitigation technologies: challenges and sustainability considerations. Current Opinion in Chemical Engineering. 48. 101107–101107. 1 indexed citations
6.
Ikenoue, Takahito, et al.. (2024). Arctic threads: Microplastic fibres in Chukchi and Beaufort sea sediments. Marine Pollution Bulletin. 208. 116954–116954. 5 indexed citations
7.
8.
Nakajima, R., et al.. (2023). Whole-Brain Evaluation of Cortical Microconnectomes. eNeuro. 10(10). ENEURO.0094–23.2023. 2 indexed citations
9.
Wang, Tao, Shiye Zhao, Lixin Zhu, et al.. (2023). Author Correction: Accumulation, transformation and transport of microplastics in estuarine fronts. Nature Reviews Earth & Environment. 4(6). 419–419. 2 indexed citations
10.
Nakajima, R., et al.. (2023). Mutual generation in neuronal activity across the brain via deep neural approach, and its network interpretation. Communications Biology. 6(1). 1105–1105.
11.
Ikenoue, Takahito, R. Nakajima, Pravakar Mishra, et al.. (2023). Floating microplastic inventories in the southern Beaufort Sea, Arctic Ocean. Frontiers in Marine Science. 10. 16 indexed citations
12.
Nakajima, R., Tetsuro Ikuta, K. Oguri, & Heather Ritchie. (2023). Occurrence of polybrominated diphenyl ethers and benzotriazole UV stabilizers in the hadal amphipod Hirondellea gigas. iScience. 26(7). 107054–107054. 4 indexed citations
13.
Ikenoue, Takahito, R. Nakajima, Amane Fujiwara, et al.. (2022). Horizontal distribution of surface microplastic concentrations and water-column microplastic inventories in the Chukchi Sea, western Arctic Ocean. The Science of The Total Environment. 855. 159564–159564. 71 indexed citations
14.
Kitahashi, Tomo, R. Nakajima, Hidetaka Nomaki, et al.. (2021). Development of robust models for rapid classification of microplastic polymer types based on near infrared hyperspectral images. Analytical Methods. 13(19). 2215–2222. 10 indexed citations
15.
Zhu, Chunmao, Yugo Kanaya, R. Nakajima, et al.. (2020). Characterization of microplastics on filter substrates based on hyperspectral imaging: Laboratory assessments. Environmental Pollution. 263(Pt B). 114296–114296. 73 indexed citations
16.
Zhu, Chunmao, Yugo Kanaya, Masashi Tsuchiya, et al.. (2020). Optimization of a hyperspectral imaging system for rapid detection of microplastics down to 100 µm. MethodsX. 8. 101175–101175. 18 indexed citations
17.
Tsuchiya, Masashi, Hidetaka Nomaki, Tomo Kitahashi, R. Nakajima, & Katsunori Fujikura. (2019). Sediment sampling with a core sampler equipped with aluminum tubes and an onboard processing protocol to avoid plastic contamination. MethodsX. 6. 2662–2668. 15 indexed citations
18.
Nakajima, R., Dhugal J. Lindsay, Masashi Tsuchiya, et al.. (2019). A small, stainless-steel sieve optimized for laboratory beaker-based extraction of microplastics from environmental samples. MethodsX. 6. 1677–1682. 25 indexed citations
19.
20.
Nakajima, R., et al.. (2009). IMPROVED CONSTRAINTS ON THE GRAVITATIONAL LENS Q0957+561. I. WEAK LENSING. The Astrophysical Journal. 697(2). 1793–1804. 16 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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