°°°° Aqueous colloidal solution2.5 w/v %
°°°° Soft hydrogelabout 13 w/v °ů
The concentration of our major product, aqueous solution, is increased from the previous 2.0% to more stable level of 2.5%, taking into account of a new characteristic in the nanodiamond solution called °»Dilution Aggregation, Concentration Dispersion.°… This interesting phenomenon will be mentioned in some detail in our next news.
[Dec.]Stable production of the elementary particles of detonation nanodiamond (EPDND) °°°°°°°°°°°°°°°°°°°°°°°°°° with an average diameter of 2.6nm achieved°™°°We have begun distributing single-nano diamond particles in 2006, but never been sure if our products are perfectly monodispersed primarily because the elementary particle of detonation nanodiamond (EPDND) was unknown. If the strongest-bound oligomers like dimers and trimers were still present even in small amounts, we should expect lognormal distribution (which we actually observe all the time) and the average or modal diameter could shift to a larger value. In the absence of any handy method to detect oligomers, we adopted quality engineering technique to optimize the beads-milling conditions and reach the smallest possible diameter value. To our surprise, average diameter of EPDND began decreasing from our old value in the 4 nm range, and reached to below 3nm in 2013 for the first time. A key factor was revealed to be tremendous increase in the number of diamond particles in going from micron-sized agglutinates to single-nano particles. We will reveal our new methodology to find the true size of EPDND. During 2016, the size-distribution almost constantly showed a narrow range of 2.6°ř0.4 nm. We now presume that complete disintegration of the agglutinates has been accomplished.
°° The only problem remaining is to remove persistent contamination of zirconia nanoparticles (about 40 nm), which came from direct contact of the elementary diamond particles with the attritter media of zirconia, and are very difficult to remove by conventional chemical means. Although zirconia nanoparticles are generally harmless and non-toxic, and present in our nanodiamond product only in less than 0.01% on the number or volume basis, we are now testing several new methods of removing contamination and will soon finish purification.
°ý2014 MRS Spring Meeting in San Francisco
The second Nanodiamond Symposium (No. PP) will be held within 2014 MRS Spring Meeting in San Francisco, CA, April 21-25, 2014, and at the moment is being organized by Eiji Osawa, Olga Shenderova (ITC, NC, USA), Joerg Wrachtrup (Uni. Stuttgart, Germany) and Vadym Mochalin (Drexel Uni., Philadelphia, USA). Technical program will be announced within January 2014. Professor Hisanori Shinohara, Nagoya Univ. was chosen as the flagpole plenary leacturer. The whole meeting is the largest of MRS Spring Meetings with 60 parallel symposia covering all the important topics of recent material science and technology and 6,000 people are expected to attend.
°ýOne of the most promising companies
NCRI was selected as one of the promising small companies in our locality. See °»The Most Outstanding 38 Small Companies in Nagano Prefecture,°… published by Asama Research Extension Center, December 2013, p. 30.
°ýNano Tech 2014
NCRI Joins Nano Tech 2014, Tokyo Big Site, January 29-31, 2014. Thanks to the courtesy of JST, we are given a small booth (No.°Ż8) within JST Domain (Area No. 6V-16) and exhibits the following items with posters and a short presentation on March 30:
Skin Moisturing Gel Containing Nanodiamond Particles
(1) Aqueous solution of nanodiamond colloid
(2) Fourty 15 ml spray bottles of the colloid as hand-outs to the visitors.
Non-oil Engine-Lubricating Liquid for Small Motors
(1) Colloidal solution of nanodiamond in propylene glycol.
(2) Fourty 15 ml spray bottles of the colloid as hand-outs to the visitors.
Skii- and Snowboard Wax Containing Nanodiamond
(1) Original ski-wax composites containing nanodiamond for both °∆Gelende°« and competing skiers and snowboarders.
(2) Fourty 15g pieces of original wax containing nanodiamond for Gelende skiers as hand-outs to the booth visitors.
These products are the results of our R&D project, °»Nanospacer Lubrication, a New Concept in Lubrication,°… sponsored by A-STEP, JST, 2012-2013.
°ýThe 46th Fullerenes, Carbon Nanotubes and Graphene General Symposium, Univ. Tokyo, Hongo, March 3-5, 2014.
°»Dispersion of detonation nanodiamond: A progress report,°… Shuichi Sasaki, Ryoko Yamanoi & Eiji Ōsawa (oral).
°»Hydration of nanodiamond surface revisited: intercalation hypothesis,°… Ryoko Yamanoi, Shuichi Sasaki & Eiji Ōsawa (poster).
°ý2014 MRS Spring Meeting, April 21-25, 2014, Muscone West, San Francisco, CA
°»Nanospacer Lubrication: Re-designing a Friction Tester Working under Ultralow Load,°… Shuichi Sasaki and Eiji Ōsawa° Poster°ň.
°»On the Possibility of Intercalation under the Graphitic Surface of Primary Particles of Detonation Nanodiamond (PPDND),°… Amanda Barnard, Dean Ho, Eiji Ōsawa, Shuichi Sasaki and Ryoko Yamanoi (Oral).
°»Three-dimensional model for phonon confinement in small particles: quantitative bandshape analysis of size-dependent Raman spectra of nanodiamonds,°… Korepanov, V. I.; Witek, H.; Okajima, H.; Ōsawa, E.; Hamaguchi, H. J. Chem. Phys.
(1) °»The impact of structural polydispersity of the surface electrostatic potential of nanodiamond,°… Barnard, A. S.; Ōsawa, E. Nanoscale 2014, 6(2), 1188-1194.
(2) °»Wigner energy of nanodiamond bombarded with neutrons or irradiated with ¶√ radiation,°… Cataldo, F.; Angelini, G.; Révay, Z.; Ōsawa, E.; Braun, T. Carbon DOI:10.1080/1536383X.2013.858131, posted online: 08 Jan 2014.
Invited to contribute
°»Plastics with intensities of metals,°… Ōsawa, E. Plastic Age, to appear in April, 2014, issue of Plastic Age, in Japanese.
°°We succeeded to develop a new method of dispersing PPDND (primary particles of detonation nanodiamond) in crystalline°°polymers°°like°°poly(ethylene°°terephthalate)[PET]°°and°°Nylon°°6.°°The°°method°°should be generally°°applicable to any solid matrices, and the composite products thus obtained are expected to greatly improve breaking strengths and other material properties. An international patent will be applied soon (Osawa).
°ýDetermination of Rolling Frictional Constants
°°A Lissajous figure method for analyzing rolling friction was completed. The software is designed to use in conjunction with a nanospacer lubrication tester that we have been locally developing in the past few years. The complete system will be presented at the 2014 Nano Tech Exposition in Tokyo Big Site at the JST booth on January 29-31, 2014 (Sasaki).
°ýSemi-Quantitative Analysis of ZrO2
°°In the course of disintegrating tight agglutinates of PPDND by beads milling, surface fragments of disintegration medium (zirconia ZrO2) usually contaminate PPDND up to 0.5%. It has been generally difficult to remove nanozirconia from PPDND. As the first step toward elimination of contamination by ZrO2, we confirmed that semi-quantitative analysis of zirconia contamination in PPDND can be performed by using fluorescent X-ray method that uses cobalt as an internal standard (Yamanoi).
♦°»The impact of structural polydispersity of the surface electrostatic potential of nanodiamond,°… Barnard, A. S.; Ōsawa, E. Nanoscale in press.
♦°»Three-dimensional model for phonon confinement in small particles: quantitative bandshape analysis of size-dependent Raman spectra of nanodiamonds,°… Korepanov, V. I.; Witek, H.; Okajima, H.; Ōsawa, E.; Hamaguchi, H., submitted for publication in Nano. Lett.
Contribution of a book Chapter contracted
♦°‘Fullerene Derivatives°¶Forefronts of Inclusion Technology°’Matuo, Y. (Ed.), Chapter 1, Section 1, °∆Discovery and Formation Mechanism of Fullerene,°« Osawa, E., CMC Publishing Corporation.
°ý2013 JSAP-MRS Joint Meeting, September 16-20, Kyotanabe Campus, Doushisha University.
We organized one of the International Symposia,°»Nanodiamond-From Basics to Medical and Other Potential Applications°… (Symposium No. N) and completed with considerable success. There were 37 presentations, among them 9 were from Japan, 7 from Russia, 4 from US, 2 from Australia, and 1 each from Czech, Germany, France, Finland, Italy, Estonia and England. To our surprise, our Symposium was attended by about 70 audiences in average with active discussion. We interpret the unexpected popularity to indicate quickly rising interests in nanodiamond with scientific community. After our session ended, we arranged on the next day a bus tour for participants to our symposium to popular sightseeing spots of Kyoto like Golden Pavilion and Kiyomizu Temple with an English-speaking guide. We also organized a Mini Post Symposium on °∆Perspectives on Nanodiamond Application°« on Sept. 19 in New Miyako Hotel. Eight presentations were made to eager audience. The following companies gave generous donation to support these two Symposia, to which we express our deep gratitudes: Adamas Nanotechnologies Inc., Bravus Japan Corp., MRS, NanoGroup Co. (Czech)°ĘNew Metals and Chemicals Corp., Toyohashi Plating Co., and Nagata Seiki Co.
°ýTwo proposals have been submitted to the Grant-in-Aids for Scientific Research from the Ministry of Education for the fiscal year of 2014 on October 2013. These are our first applications since we were granted a status of research organization to apply for the GASR in March 2013.
RECORDS OF OUR PROFESSIONAL ACTIVITIES DURING APRIL TO OCTOBER, 2013
Papers printed, accepted or submitted for publication
♦°»Wigner energy of nanodiamond bombarded with neutrons or irradiated with ¶√ radiation,°… Cataldo, F.; Angelini, G.; Révay, Z.; Ōsawa, E.; Braun, T. Carbon in press.
♦°»The impact of structural polydispersity of the surface electrostatic potential of nanodiamond,°… Barnard, A. S.; Ōsawa, E. Nanoscale, submitted for publication.
♦°»Multi-protein delivery by nanodiamond promoters bone formation,°… Moore, L.; Gatica, M.; Kim, H.; Ōsawa, E.; Ho, D. J. Dental Res. 2013, DOI: 10.1177/002203451350-
4952. On-Line version disclosed.
♦°»Diamond-Lipid Hybrids Enhance Chemotherapeutic Tolerance and Mediate Tumor Regression°…. Moore, L.; Chow, E. K.-H.; Ōsawa, E.; Bishop, J. M.; Ho, D. Adv. Mater. 2013, 25, 3532-3541.
♦°»The spatial diamond-graphite transition in detonation nanodiamond as revealed by small-angle neutron scattering,°… Avdeev, M. V.; Aksenov, V. L.; Tomchuk, O. V.; Bulavin, L. A.; Garamus, V. M.; Ōsawa, E. submitted for publication in J. Phys.: Condens. Matter 2013, 25, 445001 (7pp).
Papers presented in symposia
♦°»Nanodiamond-based oil lubricants on steel-steel and stainless steel–hard alloy high load contact: Investigation of friction surfaces,°… Ivanov, M.; Mahbooba, Z.; Ivanov, D.; Smirnov, S.; Pavlyshko, S.; Ōsawa, E.; Brenner, D.; Shenderova, O. Nanosystems: Physics, Chemistry, Mathematics (Proceedings of ACN2013, St. Petersburg, July, 2013), 2014, 1, 1-6.
♦°»Fast Conversion of 3nm Dispersed Bucky Diamond Particles into Non-coalescing Small Nano-onions,°… Yamanoi, R.; Sasaki, S.; Ōsawa, E.; Naramoto, H.; Sakai, S.; Onoda, S.; Ohshima, T. Abstract for Oral Presentation, No. 17a-M1-7, in JSAP-MRS Joint Autumn Meeting, Symposium N (Nanodiamond), Doshisha University, Sept. 16-20, 2013.
♦°»Rediscovery of Detonation Nanodiamond: 3nm Bucky Diamond in Aqueous Solution,°…Sasaki, S.; Chang, S.; Barnard, A.; Ōsawa, E. Abstract for Contributed Oral Presentation, No. 17p-PM3-8, in JSAP-MRS Joint Autumn Meeting, Symposium N (Nanodiamond), Doshisha University, Sept. 16-20, 2013.
♦°»A new stage in the detonation nanodiamond research°…, Sasaki, S.; Yamanoi, R.; Ōsawa, E. Presented before the 44th Fullerenes-Nanotubes-Graphenes General Symposium, University of Tokyo, March 11-13, 2013, 1P-43, Abstracts, p. 87.
Contract of book writing
♦°»Diamond Nanotechnology°…, Eiji Ōsawa, Total six volumes. First volume to be completed by Dec. 31, 2015. Pan Stanford Publishing, Singapore. Contract signed on Nov. 4, 2013.
Articles in popular journals
♦°»Expanded Recipients of Grant-in-Aids for Scientific Research to Researchers Employed by Private Companies, and the Ways to Evaluate the Performance of Scientists (in Japanese)°…, Ōsawa, E. Tanso (Carbon) 2013, No. 258, June issue, 236-239.
♦°»Rediscovery of Detonation Nanodiamond (in Japanese),°… Ōsawa, E. New Diamond 2013, No. 109, April issue, 10-12.
♦°»Nanospacer lubrication,°… International Application No.: PCT/JP2010/065671, International Filing Date: 03.09.2010, Priority Date: 03.09.2010, Publication No: WO/2012/029191, Publication Date: 2012.03.08. Applicants/Inventors: NCRI, OSAWA Eiji, MORI Shigeyuki.
♦°»Paraffin Wax Composites to Aids in the Movements of Ski and Snow Boards,°… Inventors: Ito, N.; Ōsawa, E.; Yoshida, M.; Date of Application: Nov. 4, 2011, Number of Patent Application: 2011°›254397, Date of Disclosure: June 13, 2013, Number of Disclosed Patent Application: Tokkai 2013°›117016.
♦°»Nanospacer Lubrication,°… Inventors: Ōsawa, E.; Mori, S. International Application No.: PCT/JP2010/065671, International Filing Date: 03.09.2010, Priority Date: 03.09.2010, Publication No: WO/2012/029191, Publication Date: 2012.03.08. Patent Number: 2013-538274, Date of patenting: October 10, 2013.
°°OCT. 29-30, Two Students from Shiota Secondary School in Ueda Took On-the-Job Training in NCRI
°°Hideki Shimizu and Noriyuki Shimizu, both 2nd-year students, spent two full days in NCRI to receive training for scientific work. They successfully endured lectures of nanotechnology, studied nanodiamond aggregates by advanced optical microscope, and measured particle-size distribution of dispersed particles. They won the right to receive the training by beating the five other science-aspirants through janken fights (scissors-paper-rock).
Two promising young scholars°ń
Oct. 31, JSPS Approved Us.
The Japan Society for the Promotion of Science (JSPS) authorized NanoCarbon Research Institute as one of the private research organizations entitled to apply competitive funding for international programs of exchanging researchers. This approval enables us to invite Professors and younger researchers from abroad to stay and perform cooperative research with us on governmental grants. Programs include predoctoral studies and postdoctoral training. Interested? Contact firstname.lastname@example.org for further information.
NCRI R&D ACTIVITIES
°¶Two research papers printed:
*°»Microstructures and photovoltaic properties of C60 based solar cells with copper oxides, CuInS2, phthalocyanines, porphyrin, PVK, nanodiamond, germanium and exciton diffusion blocking layers,°… Oku, T.; Takeda, A.; Nagata, A. Kidowaki, H.; Kamada, K.; Fujimoto, K.; Suzuki, A.; Akiyama, T.; Yamasaki, Y.; Ōsawa, E. Mater. Technol. 2013, 28 [1,2], 21-39.
*°»Looking back the most beautiful molecule C60 after quarter century of discovery,°… Ōsawa, E. Bull. Nat. Acad. Sci. Ukr. 2012, No. 9, 28-39.
°¶One Japanese patent applied:
*°»Composite Lubricants for Ski, Snowboards, Skates and Related Tools for Sliding on Ice and Snow, and the Methods of their Preparation,°… Ito, N.; Ōsawa, E.; Yoshida, M.; Takeuchi, N.; Hotta, S.; Nakagami, F. Date of Application: October 28, 2012. Application Number: 2012-237350. Priority Claimed to Application Number: 2011-254397.
Public lecture off office
*°»Production and Properties of Detonation Nanodiamond,°… Sasaki, S., October 19, afternoon, Autumn Meeting of New Diamond Forum, Centennial Memorial Hall, Tokyo Institute of Technology.
Committee meeting off office
°ŲOrganizing Committee of MRS Joint Symposium with Enlarged Membership (Head of committee: Prof. Hiroshi Ishihara), October 22, Office of Applied Physics Society, Yushima, Tokyo (Dr. K. Matsumoto represented NCRI).
July 25: G8 Research Councils Initiative (G8RCI) announced the recipients of its second multilateral research funding under the main theme °∆Material Efficiency – A first step towards sustainable manufacturing°«. A cooperative project °»Nanodiamond-based Nanospacer Lubrication°… proposed by US (North Carolina Univ.)-Russia (Ural Fed. Univ.)-Japan (NCRI) team was chosen as one of them. The competition had been announced in 2011 to give a total of 10 million € to 8-10 consortia for three years. We will start the project on Oct. this year.
NCRI R&D ACTIVITIES
°¶ Three original research papers printed:
* °»Metal-promoted restoration of defective graphene,°… Wang, W.-W.; Dang, J.-S.; Zheng, J.-J.; Zhao, X.; Ōsawa, E.; Nagase, S. J. Mater. Chem. 2012, DOI: 10.1039/c2jm31703f.
* °»Fullerenes genetic code: inheritable stability and regioselective C2 assembly,°… Dang, J.-S.; Wang, W.-W.; Zheng, J.-J.; Zhao, X.; Ōsawa, E.; Nagase, S. J. Phys. C. 2012, dx.doi.org/10.1021/jp302881u.
* °»Nanodiamond and its application to drug delivery,°… Ōsawa, E.; Ho, D. J. Med. Allied Sci. 2012, 2, 31-40.
°¶ One original paper accepted for publication:
* °»Looking back the most beautiful molecule C60 after quarter century of discovery,°… Ōsawa, E. Bull. Nat. Acad. Sci. Ukr. in pess.
* One conference report (in Japanese) printed.
* °»Symposium on the Basics and Applications of Nanodiamonds in MRS Spring 2012 Meeting°… Ōsawa, E. New Diamond Forum, 2012, 28 , 45.
[Jun.2012]The first open international symposium on Nanodiamond in Japan will be organized in 2013 autumn°¶ June 12. Our proposal to organize an symposium °»Nanodiamond-From Basics to Potential Applications°… within the framework of 2013 Auturmn Joint Meeting of Japan Society of Applied Physics (JSAP)-Materials Research Society (MRS), was approved. This Symposium will be organized by E. Osawa with O. Shenderova (International Technology Center, USA) and O. Williams (University of Cardiff, Wales, England), and will be the first open international symposium on Nanodiamond in Japan. More details will be announced in due course.
°¶ June 20. A digital optical microscope KH-3000V from Hirox Co. (max. magnification °Ŗ7,000) was set up in our laboratory Room No. 5, by courtesy of Prof. F. Okino, Shinshu University.
NCRI R&D ACTIVITIES
°¶ Four original research paper submitted:
* °»Nanodiamond and its application to drug delivery,°… Ōsawa, E.; Ho, D. J. Med. Allied Sci. in press.
* °…Nanodiamond-therapeutic complexes embedded within poly(ethylene glycol) diacrylate hydrogels mediate sequential drug elusion,°… Man, H. B.; Lam, R.; Chen, M.; Ōsawa, E.; Ho, D. submitted to publication.
* °»Fullerenes Genetic Code: Multiple Controls of Regioselective C2 Assembly,°… Dang, J.-S.; Wang, W.-W.; Zheng, J.-J.; Zhao, X.; Ōsawa, E.; Nagase, S. submitted for publication in J. Am. Chem. Soc.
* °»Statistical Modeling of Ensembles of Diamond Nanoparticles: Approaches to Diversity and Polydispersivity,°… Barnard, A. S.; Sasaki, S.; Ōsawa, E. submitted for publication.
°¶ One multi-author book on nanotechnology (in Japanese) published:
* Nanocarbon Materials. Fundamentals and Applications. Nano Science & Technology Series Vol. 1, edited by Nano Research Society, pp. 239. Chapter 2, Fullerenes, p. 19-37, and Chapter 6, Nanodiamond, p. 175-230 written by Osawa.
°¶ Social acitivities outside NCRI
* June 27. Osawa attended the First Organizing Committee held in Tokyo of °»Recent Progress in Graphene Research°… (RPGR2013) to be held in 2013 autumn in Japan as a member of Organizing Committee and International Advisory Board.
°¶May 9. Invited lecture at the Departmental Seminar, Department of Applied Chemistry, Faculty of Engineering, Osaka University, °»From Fullerenes to Nanodiamond,°… 60 min, E. Osawa.
°¶May 22. Plenary lecture at the Graphene Mini-Symposium. CSIRO, Clayton, Melbourne, Australia, °»Graphite Oxide Hypothesis as the Surface Structure of Detonation Nanodiamond,°… 60 min, E. Osawa.
°¶May 25. Lecturer in the 6th Tianfu Venture Forum organized by High-tec Park Innovation Centre, Chengdu, Sichuan, China, °»Recent Trends in Carbon Nanotechnology,°… 2 h, E. Osawa.
°¶May 28. Osawa elected as an organizing committee member for the Annual Conference on Recent Progress in Graphene Research 2013 (RPGR 2013) to be held in Tokyo, 2013.
NCRI R&D ACTIVITIES
One paper published:
°»Formation Mechanism of C60 under Nonequilibrium and Irreversible Conditions — An Annotation,°… Eiji Ōsawa, Fullerenes, Nanotubes and Carbon Nanostructures, 2012, 20, 299-309.pdf can be downloaded from°ń
°¶April 1. Optimization of disintegration process of agglutinates is completed and the new process adopted to the production.
Major improvements are as follows:
* Particle-size decreased from 4.8°ř0.7 nm to 3.7°ř0.6 nm.
* Contamination with ZrO2 reached negligible level of 3ppm.
°¶April 10-13. Participated in Symposium FF
°»Nanodiamond Particles and Related Materials-From Basic Science to Applications,°… 2012 MRS Spring Meeting,
MATERIALS RESEARCH SOCIETY, Moscone Convention Center, San Francisco.
* Osawa elected as an organizing committee member and cooperated with other members.
* Invited four special lecturers from Japan:
°¶Professor Yosuke Yoshinari° Institute for Integrated Cell-Material Science, Kyoto University°ň
°¶Professor Stephan Irle (Department of Chemistry, Nagoya University)
°¶Professor S. Mori° Department of Applied Chemistry, Iwate University°ň
°¶Dr. H. Omori° RIKEN°ň
* Sponsoring° together with other three companies of Japan: ITAC Ltd°ĘBravus Japan°ĘToyohashi Plating Co.°ň
* Presentation on NCRI in ROUND TABLE, °∆Commercial perspectives and concerns regarding nanodiamond particles°«.
* General lecture, Abstract No. FF7.2, °∆Primary Particles of Detonation Nanodiamond – Dispersion and Purification°«
⃝E. Ōsawa, S. Sasaki, V. Korepanov, R. Yamanoi