Guided Slow Continuous Suspension Film Flow for Mass Production of Submicrometer Spherical Particles by Pulsed Laser Melting in Liquid

Scientific Reports
Yoshie Ishikawa, Naoto Koshizaki

Abstract

Pulsed laser melting in liquid (PLML) is a technique to fabricate submicrometer crystalline spherical particles of various materials by laser irradiation of suspended raw particles with random shapes. To fully exploit the unique features of PLML-fabricated particles (crystalline and spherical) in practice, a mass-production PLML technique is required. To this end, the present study develops a new slit nozzle that guides the suspension film flow into a non-droplet continuous stream with a low flow rate. These two incompatible flow properties (continuity and slowness) are difficult to be realized for a liquid jet to free space. The suspension film flow was irradiated with a typical laboratory scale-flash lamp pumping laser at 30 Hz pulse frequency. Only a single flow passage of the slit nozzle with a few laser pulse irradiation transformed 95% of the raw particles into spherical particles. This spheroidizing ratio exceeded those of low-rate drip flow and high-rate cylindrical laminar flow directly jetted into free space through a Pasteur pipette nozzle. Extrapolating the data obtained from a 20-ml suspension, the average production rate was determined as 195 mg h-1. The high spheroidizing ratio and yield through the slit nozzle i...Continue Reading

References

Jul 21, 2006·The Journal of Physical Chemistry. B·Mitsuo Kawasaki, Kazuhisa Masuda
Dec 25, 2016·Journal of Colloid and Interface Science·Vincenzo Amendola, Stephan Barcikowski
Jan 17, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Sandra JendrzejStephan Barcikowski
Apr 27, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Bilal GökceStephan Barcikowski

❮ Previous
Next ❯

Citations

Apr 21, 2020·Chemistry : a European Journal·Vincenzo AmendolaStephan Barcikowski
Dec 7, 2019·Nanoscale·Jingmin TangKen-Ichi Saitow
Feb 26, 2020·Nanomaterials·Simon SiebeneicherBilal Gökce
Dec 17, 2020·The Journal of Physical Chemistry. a·Swen ZerebeckiStephan Barcikowski

❮ Previous
Next ❯

Methods Mentioned

BETA
irradiating
irradiate
light scattering
scanning electron microscopy

Software Mentioned

PLAL

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Proceedings of the Royal Society of Medicine
M S Mayou
Physical Chemistry Chemical Physics : PCCP
Marcus LauStephan Barcikowski
Transactions - American Academy of Ophthalmology and Otolaryngology
E KRIMSKY
The British Journal of Ophthalmology
M-M Gellrich
American Journal of Ophthalmology
H LITTMANN
© 2022 Meta ULC. All rights reserved