Hosokawa Powder Technology Foundation ANNUAL REPORT
Annual Report of Hosokawa Powder Technology Foundation founded for the purpose to contribute to the promotion and advancement of powder technology  

Annual Report of Hosokawa Powder Technology Foundation, which was founded in December, 1991 for the purpose to contribute to the promotion and advancement of powder technology, includes the report of the business contents and present status of the foundation in each fiscal year as well as the research reports submitted by the awardees supported by the foundation. The details of the activities of the foundation are opened in its homepage on the website(http://www.kona.or.jp/en/index.html).
Read more
565 registered articles
(updated on June 23, 2021)
Online ISSN : 2189-4663
ISSN-L : 2189-4663
Featured article
Volume 28 (2020) Pages 109-117
Effects of Adhesive Force Distribution by Admixing Smaller Particles on Improving Particle Flowability Read more
Editor’s picks

The particle flowability can be improved by admixing particles smaller than the original particles (main particles). However, the details of this improving mechanism are not yet fully understood. In this article, it was investigated that the effects of adhesive force distribution at each of contact points due to admixing particle coating on improving the flowability by DEM simulation. As a result, non-uniform adhesive force distribution had a larger discharge flow rate. This result suggested that the adhesive force distribution at each of contact points would also contribute to improving the flowability in a smaller particle admixing system.

Volume 28 (2020) Pages 88-92
Production of PLGA Nanoparticles and Its Application to Drug Delivery Systems Read more
Editor’s picks

Nanomedicines have attracted attention in the field of drug delivery technology. The size of nanomedicine plays important role in the biodistribution and its performance, such as antitumor effect and gene silencing activity. Therefore, development of size control techniques for nanomedicines is strongly desired. In this article, we report a precise size control method of poly lactic-co-glycolicacid(PLGA) nanoparticles encapsulated anti-tumor drugs using a microfluidic device.

Volume 28 (2020) Pages 18-25
Evaluation of the Correlation between Surface Forces in Organic Solvents and Affinity of Solvent Molecules with Surfaces Read more
Editor’s picks

Since particle suspensions in organic solvents are used in various industries, characterizing the stability of suspensions in organic solvents is significant for handling such suspensions. However, the interaction forces between particles, which dominate suspension stability, in non-aqueous solvents have not been understood well. In this study, the author conducted the direct force measurements between solid surfaces in different organic solvents using atomic force microscopy and revealed that the affinity between surface functional groups and solvent molecules affect significantly the interaction forces. This will provide a novel insight to the stability characterization of particle suspensions in organic solvents.

Volume 28 (2020) Pages 124-128
Crystal Structure Engineering of Powders for Visible-Light-Active Photocatalysts Read more
Editor’s picks

One of the major challenges in the last decades has been how to provide sufficient energy to the world’s population. It is nowadays clear that fossil fuels, which currently supply about 85% of our necessary energy, will be unable to satisfy the increased energy demand in the future. In this article, authors have proposed an interesting approach for designing a pn junction semiconductor photocatalyst. Results show that a nano-level combination of n-type BiVO4 and p-type BiOX enhances the photocatalytic activity as compared to each semiconductor.

Volume 28 (2020) Pages 44-48
Fabrication of Colored Magnetic Powder Using Magnetic Polymer Network Read more
Editor’s picks

Since iron oxide magnetic particles exhibiting excellent magnetism are dark brown materials, it was difficult to prepare colored magnetic particles based on iron oxide magnetic particles. This article describes the creation and properties of colorless and full-color magnetic particles based on a polymer doped with holmium, a lanthanide with low colorability and a strong magnetic moment.

View all featured articles
Most viewed articles May.2021
Share this page
Select past volume & issue
Announcements from publisher
  • ホソカワ粉体工学振興財団の令和3年度KONA賞・研究助成等公募のお知らせ <申請受付期間:2021年5月11日(火)~ 2021年7月20日(火);助成対象期間:2022年4月1日~2023年 3月31日>http://www.kona.or.jp/jp/docs/1_2021_annai.pdf