Keiichi Motoyama

4.4k total citations
177 papers, 3.5k citations indexed

About

Keiichi Motoyama is a scholar working on Molecular Biology, Pharmaceutical Science and Organic Chemistry. According to data from OpenAlex, Keiichi Motoyama has authored 177 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 87 papers in Molecular Biology, 33 papers in Pharmaceutical Science and 32 papers in Organic Chemistry. Recurrent topics in Keiichi Motoyama's work include RNA Interference and Gene Delivery (41 papers), Drug Solubulity and Delivery Systems (22 papers) and Dendrimers and Hyperbranched Polymers (21 papers). Keiichi Motoyama is often cited by papers focused on RNA Interference and Gene Delivery (41 papers), Drug Solubulity and Delivery Systems (22 papers) and Dendrimers and Hyperbranched Polymers (21 papers). Keiichi Motoyama collaborates with scholars based in Japan, Egypt and Indonesia. Keiichi Motoyama's co-authors include Hidetoshi Arima, Taishi Higashi, Risako Onodera, Fumitoshi Hirayama, Kaneto Uekama, Nasrul Wathoni, Tetsumi Irie, Yuya Hayashi, Daisuke Iohara and Hirofumi Jono and has published in prestigious journals such as Blood, PLoS ONE and The Journal of Physical Chemistry B.

In The Last Decade

Keiichi Motoyama

174 papers receiving 3.5k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Keiichi Motoyama Japan	35	1.6k	932	666	623	450	177	3.5k
Taishi Higashi Japan	30	1.3k 0.8×	700 0.8×	484 0.7×	599 1.0×	323 0.7×	155	2.9k
Valentino Laquintana Italy	35	1.1k 0.7×	814 0.9×	604 0.9×	436 0.7×	642 1.4×	109	3.1k
Lisa M. Kaminskas Australia	38	1.6k 1.0×	926 1.0×	737 1.1×	366 0.6×	668 1.5×	91	4.3k
Gaetano Giammona Italy	38	1.2k 0.8×	1.4k 1.5×	987 1.5×	639 1.0×	902 2.0×	134	4.1k
Hayat Önyüksel United States	29	1.3k 0.8×	1.2k 1.3×	584 0.9×	291 0.5×	576 1.3×	81	3.1k
Ashim K. Mitra United States	39	1.7k 1.0×	798 0.9×	1.7k 2.5×	378 0.6×	445 1.0×	135	4.8k
Franco Dosio Italy	36	2.1k 1.3×	1.8k 2.0×	607 0.9×	439 0.7×	1.0k 2.3×	102	5.0k
Prabhat Ranjan Mishra India	34	1.3k 0.8×	891 1.0×	870 1.3×	312 0.5×	581 1.3×	126	3.5k
Kaoxiang Sun China	34	1.4k 0.9×	1.2k 1.3×	986 1.5×	143 0.2×	889 2.0×	107	3.7k
Rania M. Hathout Egypt	40	968 0.6×	818 0.9×	1.7k 2.6×	315 0.5×	428 1.0×	99	3.8k

Countries citing papers authored by Keiichi Motoyama

Since Specialization

Citations

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

Fields of papers citing papers by Keiichi Motoyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiichi Motoyama

This figure shows the co-authorship network connecting the top 25 collaborators of Keiichi Motoyama. A scholar is included among the top collaborators of Keiichi Motoyama 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 Keiichi Motoyama. Keiichi Motoyama 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

Matsumoto, Yoshitaka, Yu Sugawara, Risako Onodera, et al.. (2025). Design and evaluation of a supramolecular boron compound using a cyclodextrin-based polyrotaxane for boron neutron capture therapy. Carbohydrate Polymers. 354. 123343–123343. 2 indexed citations

Higashi, Taishi, et al.. (2024). Sustained Release Formulation of Hydroxypropyl-β-cyclodextrin Eye Drops Using Xanthan Gum. Chemical and Pharmaceutical Bulletin. 72(4). 381–384. 3 indexed citations

Onodera, Risako, et al.. (2023). Cyclodextrin-based tailored polyrotaxanes for highly efficient delivery of the genome-editing molecule. Carbohydrate Polymers. 323. 121443–121443. 11 indexed citations

Hitora, Yuki, et al.. (2022). Colletofragarone A2 Inhibits Cancer Cell Growth In Vivo and Leads to the Degradation and Aggregation of Mutant p53. Chemical Research in Toxicology. 35(9). 1598–1603. 6 indexed citations

Ishitsuka, Yoichi, Yuki Kondo, Toru Takeo, et al.. (2021). Intracerebroventricular Treatment with 2-Hydroxypropyl-β-Cyclodextrin Decreased Cerebellar and Hepatic Glycoprotein Nonmetastatic Melanoma Protein B (GPNMB) Expression in Niemann–Pick Disease Type C Model Mice. International Journal of Molecular Sciences. 22(1). 452–452. 21 indexed citations

Kubota, Yasushi, Risako Onodera, Taishi Higashi, et al.. (2021). Folic Acid-Appended Hydroxypropyl-β-Cyclodextrin Exhibits Potent Antitumor Activity in Chronic Myeloid Leukemia Cells via Autophagic Cell Death. Cancers. 13(21). 5413–5413. 9 indexed citations

Maeda, Yuki, Keiichi Motoyama, Taishi Higashi, et al.. (2019). In vivo Efficacy and Safety Evaluation of Lactosyl-β-cyclodextrin as a Therapeutic Agent for Hepatomegaly in Niemann-Pick Type C Disease. Nanomaterials. 9(5). 802–802. 13 indexed citations

Ishitsuka, Yoichi, Akira Ishii, Yuki Kondo, et al.. (2019). In Vitro and In Vivo Evaluation of 6-O-α-Maltosyl-β-Cyclodextrin as a Potential Therapeutic Agent Against Niemann-Pick Disease Type C. International Journal of Molecular Sciences. 20(5). 1152–1152. 14 indexed citations

Iohara, Daisuke, Taishi Higashi, Keiichi Motoyama, et al.. (2018). Sacran, a High-molecular Weight Polysaccharide Inhibits Renal Injury and Oxidative Stress in Chronic Renal Failure Model Rats. 4(2). 267–275. 1 indexed citations

10.

Maeda, Yuki, Keiichi Motoyama, Taishi Higashi, et al.. (2018). Lowering effect of dimethyl-α-cyclodextrin on GM1-ganglioside accumulation in GM1-gangliosidosis model cells and in brain of β-galactosidase-knockout mice. Journal of Inclusion Phenomena and Macrocyclic Chemistry. 93(1-2). 53–66. 6 indexed citations

11.

Elamin, Khaled M., et al.. (2018). Dual targeting system by supramolecular complex of folate-conjugated methyl-β-cyclodextrin with adamantane-grafted hyaluronic acid for the treatment of colorectal cancer. International Journal of Biological Macromolecules. 113. 386–394. 34 indexed citations

12.

Hayashi, Tomoya, Masatoshi Momota, Etsushi Kuroda, et al.. (2018). DAMP-Inducing Adjuvant and PAMP Adjuvants Parallelly Enhance Protective Type-2 and Type-1 Immune Responses to Influenza Split Vaccination. Frontiers in Immunology. 9. 2619–2619. 37 indexed citations

13.

Okada, Yasuyo, Erica Ueda, Yuki Kondo, et al.. (2017). Role of 6-O-α-maltosyl-β-cyclodextrin in lysosomal cholesterol deprivation in Npc1-deficient Chinese hamster ovary cells. Carbohydrate Research. 455. 54–61. 7 indexed citations

14.

Higashi, Taishi, et al.. (2015). Design and Evaluation of the Highly Concentrated Human IgG Formulation Using Cyclodextrin Polypseudorotaxane Hydrogels. AAPS PharmSciTech. 16(6). 1290–1298. 24 indexed citations

15.

Higashi, Taishi, et al.. (2015). Improvement of physicochemical stability of highly-concentrated antibodies using cyclodextrin polypseudorotaxane hydrogels. Asian Journal of Pharmaceutical Sciences. 11(1). 221–222. 2 indexed citations

16.

Higashi, Taishi, et al.. (2012). Cyclodextrin/Poly(Ethylene Glycol) Polypseudorotaxane Hydrogels as a Promising Sustained-Release System for Lysozyme. Journal of Pharmaceutical Sciences. 101(8). 2891–2899. 26 indexed citations

17.

Higashi, Taishi, et al.. (2011). Potential use of glucuronylglucosyl-β-cyclodextrin/dendrimer conjugate (G2) as a DNA carrierin vitroandin vivo. Journal of drug targeting. 20(3). 272–280. 19 indexed citations

18.

Iohara, Daisuke, Fumitoshi Hirayama, Koki Wada, et al.. (2011). Some pharmaceutical and inclusion properties of 2-hydroxybutyl-β-cyclodextrin derivative. International Journal of Pharmaceutics. 419(1-2). 161–169. 20 indexed citations

19.

Miyamoto, Yuji, Keiichi Motoyama, Fumitoshi Hirayama, et al.. (2010). Reduction of Bitterness of Antihistaminic Drugs by Complexation with β-Cyclodextrins. Journal of Pharmaceutical Sciences. 100(5). 1935–1943. 44 indexed citations

20.

Arima, Hidetoshi, Yoshimasa Mori, Yuya Hayashi, et al.. (2010). In Vitro and In Vivo gene delivery mediated by Lactosylated Dendrimer/α-Cyclodextrin Conjugates (G2) into Hepatocytes. Journal of Controlled Release. 146(1). 106–117. 71 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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