KONA Powder and Particle Journal
KONA Powder and Particle Journal is a peer-reviewed, international, interdisciplinary and Diamond open-access journal that publishes articles on powder and particle science and technology.

   KONA Powder and Particle Journal is a refereed scientific journal that publishes articles on powder and particle science and technology. This journal has been published annually since 1983 and is distributed free of charge to researchers, members of the scientific communities, universities and research libraries throughout the world, by Hosokawa Powder Technology Foundation established by Mr. Masuo Hosokawa in 1991.
  The Chinese character “粉” in the cover is pronounced “KONA” in Japanese, and means “Powder”. The calligraphy of it is after the late Mr. Eiichi Hosokawa, founder of the Hosokawa Micron Corporation.
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1,260 registered articles
(updated on December 04, 2023)
Online ISSN : 2187-5537
Print ISSN : 0288-4534
ISSN-L : 0288-4534
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Featured article
Volume 39 (2022) Pages 130-149
High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives Read more
Editor's pick

Nickel is set to play a pivotal role in the next chapter of energy storage. Over the next decade, nickel-based Li-ion batteries are expected to dominate the battery market for both energy storage systems (ESS) and electric vehicles. One of the key features of nickel-based active materials is their morphology; the shape and size of the particles can affect the electrochemical performance of the active materials. Both nickel-containing anode and cathode materials with excellent morphology have been reported to have high capacity, excellent cycle stability, and rate-ability. These key performance metrics demonstrate the promising future for the development of a clean and sustainable energy industry.

Volume 39 (2022) Pages 176-192
The Development of Thin-Film Freezing and Its Application to Improve Delivery of Biologics as Dry Powder Aerosols Read more
Editor's pick

Pharmaceutical dry powders with desired aerosol properties are required for efficient pulmonary drug delivery. Thin-film freezing (TFF) followed by lyophilization is a particle engineering technology that produces highly porous, brittle, powder matrices with excellent aerosol properties and high drug loading. In this review article, the authors describe the TFF technology and discuss the physical and aerosol properties of TFF powders as well as factors affecting those properties. Finally, the authors provide a comprehensive review of published literature for applying the TFF technology to prepare aerosolizable dry powders of protein-based pharmaceuticals for pulmonary delivery.

Volume 39 (2022) Pages 62-83
Review and Further Validation of a Practical Single-Particle Breakage Model Read more
Editor's pick

Single-particle breakage studies were, in the not-so-distant past, only of academic interest, since no tools were available to transfer the microscale information they provide to deal with problems in industry. Fortunately, the discrete element method (DEM), along with properly-formulated population balance models, not make it possible to carry information from single particles to predict the performance of crushers, mills and handling systems that may cause their mechanical degradation. The work critically analyzes one model that has been found quite powerful in this task.

Volume 39 (2022) Pages 251-261
Biodegradable PLGA Microsphere Formation Mechanisms in Electrosprayed Liquid Droplets Read more
Editor's pick

Delivery systems using nanoparticles and microparticles composed of biodegradable polymers such as polylactic glycolic acid have attracted much attention in the pharmaceutical and cosmetic fields to the delivery of active ingredients into the body. This paper describes a novel microparticle preparation method using fine-charged droplets as reaction fields generated by electrospray. This method is unique and impactful because tailored PLGA microspheres with various sizes and different structures such as porous and solid structures can be prepared by controlling the process conditions. The formation mechanism of particles with different sizes and structures within the droplets is also explained.

Volume 39 (2022) Pages 230-239
Correlating Granule Surface Structure Morphology and Process Conditions in Fluidized Bed Layering Spray Granulation Read more
Editor's pick

 Due to their easy handling, transport, and storage compared to liquids and gases, solid products in particulate form are of great interest in both, daily life and industrial applications. Along with the high demand for those products comes the need for a thorough understanding of particle production and modification processes, like fluidized bed spray granulation, to achieve the desired product properties. To contribute to that process understanding and to, in the long term, enable the production of tailor-made particles, this study aims to correlate process parameters and particle surface structure in fluidized bed spray granulation.

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