Professor Okamoto, one of the nanocomposite key researchers, has been awarded a 2004 Thomson ISI Citation Laureate, for having his writing cited over 13,326 times from 1988 in his field in nanocomposites.

(17B1) M. Okamoto, R. Domura, R. Sakai, S. Arakawa, gSmart Surfaces Chemistry and Coating Materials for Tissue Engineeringh in Fundamental Principles of Smart Materials for Tissue Engineering/ Applications of Smart Materials in Tissue Engineering, Qun Wang editor, RSC Smart Materials Series, RSC Press, London, pp 25-44 (2017)
(172) Y. Toyota, Y. Matsuura, M. Ito, R. Domura, M. Okamoto, S. Arakawa, M. Hirano, K. Kohda "Cytotoxity of natural allophane nanoparticles on human lung cancer A549", Applied Clay Science, 135, 485-492 (2016)  
(173) R. Domura, R. Sasaki, M.Okamoto, M. Hirano, K. Kohda, B. Napiwocki, L-S. Turng, "Comprehensive study on cellular morphologies, proliferation, motility, and epithelial?mesenchymal transition of breast cancer cells incubated on electrospun polymeric fiber substrates", Journal of Materials Chemistry B, 135, 2588-2600 (2017)  
(174) Y. Toyota, M. Okamoto, S. Arakawa, "New opportunities for drug delivery carrier of natural allophane nanoparticles on human lung cancer A549 cells", Applied Clay Science, 143, 422-429 (2017)  
(175) R. Domura, R. Sasaki, Y. Ishikawa, M.Okamoto, "Cellular Morphology-Mediated Proliferation and Drug Sensitivity of Breast Cancer Cells", Journal of Functional Biomaterials, 8(2), 18 (2017) DOI: 10.3390/jfb8020018  
(176) M. Furuya, N. Shimono, M. Okamoto, "Fabrication of biocomposites composed of natural rubber latex and bone tissue derived from MC3T3-E1 mouse preosteoblast cells", Nanocomposites (2017) DOI: 10.1080/20550324.2017.1352111   
(177) M. Furuya, N. Shimono, K. Yamazaki, R. Domura, M. Okamoto, "Cytotoxicity and anticancer activity of natural rubber latex particles for cancer cells", Materials Today Chemistry, 5, 63-71 (2017)   
(178) M. Furuya, N. Shimono, K. Yamazaki, R. Domura, M. Okamoto, "Evaluation on cytotoxicity of natural rubber latex nanoparticles and application in bone tissue engineering", e-Journal of Soft Materials (2017)    
(161) H. Mittal, S. S. Ray, M. Okamoto. gRecent Progress on the Design and Applications of Polysaccharide-Based Graft Copolymer Hydrogels as Adsorbents for Wastewater Purificationh, Macromol. Mater. Eng., 301, 496-522, mame.201500399, (2016)
(162) Jiaming Bai, Ruth D. Goodridge, Richard JM. Hague, Masami Okamoto
"Processing and Characterization of a Polylactic
Acid/Nanoclay Composite for Laser Sintering", Polymer Composites, DOIF10.1002/pc.23848 (2015)
(151) Y. Nishida, R. Domura, R. Sakai, M. Okamoto, S. Arakawa, R. Ishiki, M.R. Salick, L. Turng
"Fabrication of PLLA/HA Composite Scaffolds modified by DNA", Polymer, 56, 73-81, DOIF10.1016/j.polymer.2014.09.063(2015)
(15B1) M. Okamoto, R. Sakai, S. Arakawa, R, Ishiki. gBionanocomposite scaffolds for tissue engineering and gene therapyh in Biofoams, S. Iannace, C.B. Park editors, CRC Press, London, pp 367-395 (2015)
(141) Jiaming Bai, Ruth D. Goodridge, Richard JM. Hague, Mo Song, Masami Okamoto
"Influence of carbon nanotubes on the rheology and dynamic mechanical properties of polyamide-12 for laser sintering", Polymer Testing, DOIF10.1016/j.polymertesting.2014.03.012 (2014)
(142) Shuichi Arakawa; Yoko Matsuura; M. Okamoto
"Allophane-Pt nanocomposite: Synthesis and MO simulation", Applied Clay Science, 95, 191-196 (2014)
(14B1) Y. Matsuura, S. Arakawa, M, Okamoto.
g"DNA Adsorption Characteristics of Clay and Composite Hydrogel Formation", in Clays and Clay Minerals: Geological Origin, Mechanical Properties and Industrial Applications, Liam R. Wesley editor, Nova Publishers, New York, pp 273-276 (2014)
(143) Y.Kido, R. Sakai, B. John, M. Okamoto, J. V. Seppala
"Preparation and enzymatic degradation of porous crosslinked PLA of biomass origin", Int. J. Mol Sci., 15, 9793-9808, (2014).
(144) Y. Matsuura, S. Arakawa, M. Okamoto
"Single-stranded DNA adsorption characteristics by hollow spherule allophane nano-particles: pH dependence and computer simulation", Applied Clay Science, pp 591-597(2014) DOIF10.1016/j.clay.2014.09.023
(131) R. Sakai, B. John, M. Okamoto, J.V. Seppala, J. Vaithilingam, H. Hussein, R. Goodridge
"Fabrication of Polylactide based Biodegradable Thermoset Scaffolds for Tissue Engineering Applications", Macromolecular Materials and Engineering, 298(1), 45-52 (2013) DOI: 10.1002/mame.201100436 (2012)
(132) C. Mizuno, B. John, M. Okamoto
"Percolated network structure formation and rheological properties in nylon 6/clay nanocomposites", Macromolecular Materials and Engineering, Macromolecular Materials and Engineering, 298, 400-411 (2013) DOI: 10.1002/mame.201200065(2012)
(133) A. Taki, B. John, S. Arakawa, M. Okamoto
"Structure and Rheology of Nanocomposite Hydrogels Composed of DNA and Clay", European Polymer Journal, 49, 923-931 (2013)
(13B1) M. Okamoto
"Synthetic biopolymer nanocomposites with the aim of tissue engineering scaffolds in Ceramic Nanocomposites: Properties and Applications", R. Banerjee editor, Cambridge: Woodhead Publishing 2013 in press.
(134) M. Okamoto, B. John
"Synthetic biopolymer nanocomposites for tissue engineering scaffolds", Progress in Polymer Science, 38, 1487-1503, (2013).
(135) T. Kawachi, Y. Matsuura, F. Iyoda, S. Arakawa, M. Okamoto
"Preparation and characterization of DNA/allophane composite hydrogels", Colloids and Surfaces B: Biointerfaces, 112, 429-434 (2013).
(136) T. Takeshita, Y. Matsuura, S. Arakawa, M. Okamoto
"Biomineralization of hydroxyapatite on DNA molecules in SBF: Morphological features and computer simulation", Langmuir, 29, 11975-11981, (2013).
(137) Y. Matsuura, F. Iyoda, S. Arakawa, B. John, M. Okamoto, H. Hayashi
"DNA adsorption characteristics of hollow spherule allophane nano-particles", Materials Science and Engineering C, 33, 5079-5083, (2013)
(121) F. Iyoda, S. Hayashi, S. Arakawa, M. Okamoto
"Synthesis and adsorption characteristics of hollow spherical allophane nano-particles", Applied Clay Science, 56, 77-83 (2012)
(12B1) M. Okamoto
"Polylactide / Clay Nano-biocomposites" Chapter 4 in Environmental Silicate Nano-biocomposites", Springer-Verlag London Limited, pp 77-118 (2012)
(122) Y. Ando, H. Sato, H. Shinzawa, M. Okamoto, I. Noda, Y. Ozaki
"Isothermal melt crystallization behavior of neat poly(L-lactide) (PLLA) and PLLA / Organically Modified Layered Silicate (OMLS) nanocomposite studied by Two-dimensional (2D) Correlation Spectroscopy", Vibrational Spectroscopy, 60, 158-162 (2012)
(111) November 2011 Newsletter of PPS (2011)
(101) H. Hayashi, T. Mori, M. Okamoto, S. Yamasaki, H. Hayami
"Polyethylene Ionomer-based nano-composite foams prepared by a batch process and MuCell(R) Injection molding", Mater. Sci. Eng. C, 30, 62-70 (2010)
(102) M. Kajino, T. Saito, M. Okamoto, H. Sato, Y. Ozaki,
"Nonisothermal order-disorder phase transition of alkylammonium ions in nanoconfined space", Applied Clay Science, 48, 73-80 (2010)
(103) T. Saito, M. Okamoto
"Polypropylene-based nano-composite formation: Delamination of organically modified layered fille via solid-state processing", Polymer, 51, 4238-4242 (2010)

(104) T. Ishisue, M. Okamoto, K. Tashiro
"Real-Time Investigation of Crystallization in Nylon 6-Clay Nano-composite Probed by Infrared Spectroscopy", Polymer, 51, 5585-5591 (2010).
(09B1) M. Okamoto
"Rheology in polymer/clay nano-composites: Mesoscale structure development and soft glassy dynamics" in Emerging technologies: Nano and Nano/Bio Composites, F. Hussain Eds., Taylor and Francis, pp57-78 (2009)
(091) Y. Katoh, M. Okamoto
"Crystallization controlled by layered silicates in nylon 6-clay nano-composite" Polymer,50, 4718-4726 (2009)

(092) T. Mori, H. Hayashi, M. Okamoto, S. Yamasaki, H. Hayami
"Foam Processing of Polyethylene Ionomers with Supercritical CO2", Composites: Part A, 40, 1708-1716 (2009)