If you made any changes in Pure these will be visible here soon.

Research Output 1977 2019

  • 947 Citations
  • 18 h-Index
  • 109 Article
  • 1 Chapter
  • 1 Conference contribution
2019
Reflectometers
Crystallization
Cooling
Kinetics
Function evaluation
Growth kinetics
Crystallization
Kinetic parameters
Drug products
Crystals

Preparation of dispersed metal nanoparticles in the aqueous solution of metal carboxylate and the tetra-n-butylammonium carboxylate

Machida, H., Sugahara, T. & Hirasawa, I., 2019 May 15, In : Journal of Crystal Growth. 514, p. 14-20 7 p.

Research output: Contribution to journalArticle

Metal nanoparticles
metal particles
carboxylates
Precious metals
noble metals
2018

Characteristics of melting point depression in a melt system of disodium hydrogen phosphate dodecahydrate

Watanabe, Y. & Hirasawa, I., 2018 Nov 20, In : Kagaku Kogaku Ronbunshu. 44, 6, p. 372-378 7 p.

Research output: Contribution to journalArticle

Latent heat
Melting point
Phosphates
Hydrogen
Heat storage
2 Citations (Scopus)

Computing Crystal Size Distribution by Focused-Beam Reflectance Measurement when Aspect Ratio Varies

Unno, J., Umeda, R. & Hirasawa, I., 2018 Jan 1, (Accepted/In press) In : Chemical Engineering and Technology.

Research output: Contribution to journalArticle

Reflectometers
Aspect ratio
Crystallization
Crystals
Cooling

Effect of salt addition on supercooling property of erythritol

Suzuki, M., Machida, H., Satomi, H. & Hirasawa, I., 2018 Jan 1, In : Kagaku Kogaku Ronbunshu. 44, 1, p. 12-17 6 p.

Research output: Contribution to journalArticle

Erythritol
Supercooling
Salts
Anions
Acetates
1 Citation (Scopus)

Encrustation Prevention of Zirconium Molybdate Hydrate

Arai, T., Ito, D., Hirasawa, I., Miyazaki, Y. & Takeuchi, M., 2018 Jan 1, (Accepted/In press) In : Chemical Engineering and Technology.

Research output: Contribution to journalArticle

Hydrates
Zirconium
Nitric Acid
Nitric acid
Nuclear fuel reprocessing
1 Citation (Scopus)

Eutectic composition of a salt hydrate mixture of sodium carbonate and disodium hydrogen phosphate

Watanabe, Y. & Hirasawa, I., 2018 Jan 1, In : Kagaku Kogaku Ronbunshu. 44, 3, p. 207-216 10 p.

Research output: Contribution to journalArticle

Hydrates
Eutectics
Carbonates
Phosphates
Salts
1 Citation (Scopus)

Eutectic formation from melt mixtures of hydrates of nickel and cobalt salts

Watanabe, Y. & Hirasawa, I., 2018 Jan 1, In : Kagaku Kogaku Ronbunshu. 44, 1, p. 3-11 9 p.

Research output: Contribution to journalArticle

Cobalt
Hydrates
Nickel
Eutectics
Salts
3 Citations (Scopus)

Memory effect in tetra-: N -butyl ammonium bromide semiclathrate hydrate reformation: The existence of solution structures after hydrate decomposition

Machida, H., Sugahara, T. & Hirasawa, I., 2018 Jan 1, In : CrystEngComm. 20, 24, p. 3328-3334 7 p.

Research output: Contribution to journalArticle

ammonium bromides
Hydrates
hydrates
Supercooling
Decomposition
2 Citations (Scopus)

Polymorph Control of L-Phenylalanine in Cooling Crystallization by Ultrasonication

Ike, Y. & Hirasawa, I., 2018 Jan 1, (Accepted/In press) In : Chemical Engineering and Technology.

Research output: Contribution to journalArticle

Crystallization
Polymorphism
Phenylalanine
Cooling
Food additives
2017
1 Citation (Scopus)

Growth Mechanism of Hollow Sodium Chloride Single Crystals Grown from a Mixed Solvent of Cyclohexane and Acetone

Kaneko, S. & Hirasawa, I., 2017 Jul 1, In : Chemical Engineering and Technology. 40, 7, p. 1276-1281 6 p.

Research output: Contribution to journalArticle

Sodium chloride
Cyclohexane
Acetone
Sodium Chloride
Single crystals
6 Citations (Scopus)

Polymorph Control of L-ArgHCl on Antisolvent Crystallization by Ultrasonic Irradiation

Ike, Y. & Hirasawa, I., 2017 Jul 1, In : Chemical Engineering and Technology. 40, 7, p. 1318-1322 5 p.

Research output: Contribution to journalArticle

Arginine
Crystallization
Polymorphism
Ultrasonics
Irradiation
4 Citations (Scopus)
Calcium Chloride
Calcium chloride
Melting point
Ions
Heat storage
9 Citations (Scopus)

Relationship between supercooling stability and solution structure in sodium acetate aqueous solution

Machida, H., Sugahara, T. & Hirasawa, I., 2017 Oct 1, In : Journal of Crystal Growth. 475, p. 295-299 5 p.

Research output: Contribution to journalArticle

Sodium Acetate
Supercooling
supercooling
acetates
Sodium

Shape Change and Growth Behavior of Monosodium Urate Monohydrate in a Gout Model

Ozono, C., Hirasawa, I. & Kohori, F., 2017 Jul 1, In : Chemical Engineering and Technology. 40, 7, p. 1231-1234 4 p.

Research output: Contribution to journalArticle

Uric Acid
Needles
Crystals
Fluids
Dynamic light scattering
4 Citations (Scopus)

Synthesis of Platinum Nanoparticles by Reductive Crystallization Using Polyethyleneimine

Nagao, H., Ichiji, M. & Hirasawa, I., 2017 Jul 1, In : Chemical Engineering and Technology. 40, 7, p. 1242-1246 5 p.

Research output: Contribution to journalArticle

Polyethyleneimine
Crystallization
Platinum
Nanoparticles
Ions
1 Citation (Scopus)

The solubility characteristics of aluminum sulfate in sulfuric acid aqueous solution in the presence of oxalic acid

Imura, N., Sonohara, A. & Hirasawa, I., 2017, In : Journal of Chemical Engineering of Japan. 50, 7, p. 516-520 5 p.

Research output: Contribution to journalArticle

Oxalic Acid
Oxalic acid
Sulfuric acid
Solubility
Aluminum
2016
2 Citations (Scopus)

Heterogeneous precipitation of gold nanoparticles on PEI coated silica gel

Mikami, T., Konno, C., Takayasu, Y. & Hirasawa, I., 2016 Feb 20, In : Journal of Chemical Engineering of Japan. 49, 2, p. 186-190 5 p.

Research output: Contribution to journalArticle

Polyethyleneimine
Silica Gel
Silica gel
Gold
Nanoparticles

Particle size distribution control of Pt particles used for particle gun

Ichiji, M., Akiba, H., Nagao, H. & Hirasawa, I., 2016, (Accepted/In press) In : Journal of Crystal Growth.

Research output: Contribution to journalArticle

particle size distribution
Particle size analysis
Particles (particulate matter)
inoculation
Nucleation
1 Citation (Scopus)

Purification of uranium products in crystallization system for nuclear fuel reprocessing

Takeuchi, M., Yano, K., Shibata, A., Sanbonmatsu, Y., Nakamura, K., Chikazawa, T. & Hirasawa, I., 2016 Apr 2, In : Journal of Nuclear Science and Technology. 53, 4, p. 521-528 8 p.

Research output: Contribution to journalArticle

nuclear fuel reprocessing
Nuclear fuel reprocessing
purification
Uranium
uranium

Size control of Au NPs supported by pH operation

Ichiji, M., Akiba, H. & Hirasawa, I., 2016 Aug 2, (Accepted/In press) In : Journal of Crystal Growth.

Research output: Contribution to journalArticle

agglomeration
Agglomeration
Ascorbic acid
Crystallization
Particle size analysis
4 Citations (Scopus)

Study of polymorphic control in an ethanol-water binary solvent

Kitano, H., Tanaka, T. & Hirasawa, I., 2016 Aug 3, (Accepted/In press) In : Journal of Crystal Growth.

Research output: Contribution to journalArticle

Polymorphism
Ethanol
ethyl alcohol
Citrulline
Water
2015
4 Citations (Scopus)

Effect of Seeding and pH Conditions on the Size and Shape of Au Nanoparticles in Reduction Crystallization

Akiba, H., Ichiji, M., Nagao, H. & Hirasawa, I., 2015 Jun 1, In : Chemical Engineering and Technology. 38, 6, p. 1068-1072 5 p.

Research output: Contribution to journalArticle

Crystallization
Genes
Metals
Nanoparticles
Ascorbic acid

Metastability of supersaturated solution and nucleation

Kubota, N., Kobari, M. & Hirasawa, I., 2015 Aug 6, Advances in Organic Crystal Chemistry: Comprehensive Reviews 2015. Springer Japan, p. 115-138 24 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

metastable state
Nucleation
nucleation
induction
Crystallizers
6 Citations (Scopus)

Polymorphism, Size and Shape Control of Calcium Carbonate Crystals in the Presence of a Polyelectrolyte

Sonobe, Y., Watamura, H. & Hirasawa, I., 2015 Jun 1, In : Chemical Engineering and Technology. 38, 6, p. 1053-1058 6 p.

Research output: Contribution to journalArticle

carbopol 940
Calcium Carbonate
Calcium carbonate
Polyelectrolytes
Polymorphism

Solubility Characteristics and Crystallization Behavior of Oxalic Acid in the Presence of Sulfuric Acid

Imura, N. & Hirasawa, I., 2015 Jun 1, In : Chemical Engineering and Technology. 38, 6, p. 1042-1046 5 p.

Research output: Contribution to journalArticle

Oxalic Acid
Oxalic acid
Crystallization
Sulfuric acid
Aluminum
2014
6 Citations (Scopus)

A population balance model for solvent-mediated polymorphic transformation in unseeded solutions

Kobari, M., Kubota, N. & Hirasawa, I., 2014 Jul 21, In : CrystEngComm. 16, 27, p. 6049-6058 10 p.

Research output: Contribution to journalArticle

Nucleation
nucleation
Polymorphism
Crystallization
simulation

Effect of Specific Amino Acids on Controlling Crystal Pseudopolymorphism of L-Arginine Hydrochloride

Shimizu, T., Yoshiura, H., Nagano, H. & Hirasawa, I., 2014, In : Chemical Engineering and Technology. 37, 8, p. 1427-1430 4 p.

Research output: Contribution to journalArticle

Arginine
Amino acids
Amino Acids
Crystals
Stereochemistry
7 Citations (Scopus)

Effects of detector sensitivity and resolution on induction time reading

Kubota, N., Kobari, M. & Hirasawa, I., 2014 Feb 14, In : CrystEngComm. 16, 6, p. 1103-1112 10 p.

Research output: Contribution to journalArticle

induction
Detectors
Crystals
detectors
Nucleation
6 Citations (Scopus)

Polyacrylic Acid-Assisted Crystallization Phenomena of Carbonate Crystals

Watamura, H., Sonobe, Y. & Hirasawa, I., 2014, In : Chemical Engineering and Technology. 37, 8, p. 1422-1426 5 p.

Research output: Contribution to journalArticle

carbopol 940
Carbonates
Crystallization
Crystals
Acids
2013
5 Citations (Scopus)

Analytical and numerical study of detector sensitivity and resolution effects on metastable zone width

Kubota, N., Kobari, M. & Hirasawa, I., 2013 Mar 21, In : CrystEngComm. 15, 11, p. 2091-2098 8 p.

Research output: Contribution to journalArticle

Detectors
detectors
Crystals
sensitivity
nuclei
1 Citation (Scopus)

Creation of controlled manganese and zinc compounds by reactive crystallization

Shimizu, Y. & Hirasawa, I., 2013, In : Journal of Chemical Engineering of Japan. 46, 5, p. 342-346 5 p.

Research output: Contribution to journalArticle

Manganese Compounds
Zinc Compounds
Manganese compounds
Zinc compounds
Crystallization
18 Citations (Scopus)

Deducing primary nucleation parameters from metastable zone width and induction time data determined with simulation

Kobari, M., Kubota, N. & Hirasawa, I., 2013 Feb 14, In : CrystEngComm. 15, 6, p. 1199-1209 11 p.

Research output: Contribution to journalArticle

induction
Nucleation
nucleation
simulation
Supercooling
6 Citations (Scopus)

Efficient plastid transformation in tobacco using small gold particles (0.07-0.3 μm)

Okuzaki, A., Kida, S., Watanabe, J., Hirasawa, I. & Tabei, Y., 2013, In : Plant Biotechnology. 30, 1, p. 65-72 8 p.

Research output: Contribution to journalArticle

Plastids
Gold
gold
plastids
Tobacco
5 Citations (Scopus)

Evaluation of precipitation behavior of zirconium molybdate hydrate

Zhang, L., Takeuchi, M., Koizumi, T. & Hirasawa, I., 2013 Mar, In : Frontiers of Chemical Science and Engineering. 7, 1, p. 65-71 7 p.

Research output: Contribution to journalArticle

Hydrates
Zirconium
Nitric Acid
Nitric acid
Particle size
Crystallization
Magnesium
Phosphates
Membranes
Crystals

Kinetic crystallization separation process of the inositol isomers by controlling metastable zones

Konuki, K. & Hirasawa, I., 2013 Jun 15, In : Journal of Crystal Growth. 373, p. 123-127 5 p.

Research output: Contribution to journalArticle

inositols
Crystallization kinetics
Inositol
Isomers
Crystallization
3 Citations (Scopus)
Polyethyleneimine
Microcrystals
Strontium
Crystallization
Sulfates
4 Citations (Scopus)

Mechanism of specific influence of L-Glutamic acid on the shape of L-Valine crystals

Yoshiura, H., Nagano, H. & Hirasawa, I., 2013, In : Journal of Crystal Growth. 363, p. 55-60 6 p.

Research output: Contribution to journalArticle

glutamic acid
Valine
agglomeration
Glutamic Acid
Agglomeration
2 Citations (Scopus)

New insights into additive structure effect on crystal agglomeration of L-valine

Yoshiura, H., Nagano, H. & Hirasawa, I., 2013 Dec, In : Chemical Engineering and Technology. 36, 12, p. 2023-2028 6 p.

Research output: Contribution to journalArticle

Valine
Agglomeration
Amino acids
Crystals
Amino Acids
5 Citations (Scopus)

Particle size distribution and shape control of Au nanoparticles used for particle gun

Kida, S., Ichiji, M., Watanabe, J. & Hirasawa, I., 2013 Mar, In : Frontiers of Chemical Science and Engineering. 7, 1, p. 60-64 5 p.

Research output: Contribution to journalArticle

Particle size analysis
Nanoparticles
Ascorbic acid
Ascorbic Acid
Gene transfer
6 Citations (Scopus)

Polyelectrolyte effects on the crystallization phenomena of the lithium carbonate

Watamura, H., Marukawa, H. & Hirasawa, I., 2013 Jun 15, In : Journal of Crystal Growth. 373, p. 111-117 7 p.

Research output: Contribution to journalArticle

carbopol 940
Lithium Carbonate
Crystallization
Polyelectrolytes
Carbonates
63 Citations (Scopus)

The relationship between crystal morphology and XRD peak intensity on CaSO4·2H2O

Inoue, M. & Hirasawa, I., 2013, In : Journal of Crystal Growth. 380, p. 169-175 7 p.

Research output: Contribution to journalArticle

crystal morphology
Crystals
crystals
Microcrystals
microcrystals
2012
7 Citations (Scopus)

Effect of Seeding on Metal Ion Recovery from Wastewater by Reactive Crystallization of Metal Carbonates

Shimizu, Y. & Hirasawa, I., 2012 Sep, In : Chemical Engineering and Technology. 35, 9, p. 1588-1592 5 p.

Research output: Contribution to journalArticle

Carbonates
Crystallization
Metal ions
Wastewater
Metals
15 Citations (Scopus)

Effect of Ultrasonic Irradiation on the Crystallization of Sodium Acetate Trihydrate Utilized as Heat Storage Material

Seo, K., Suzuki, S., Kinoshita, T. & Hirasawa, I., 2012 Jun, In : Chemical Engineering and Technology. 35, 6, p. 1013-1016 4 p.

Research output: Contribution to journalArticle

Sodium Acetate
Heat storage
Crystallization
Nucleation
Ultrasonics
3 Citations (Scopus)

Recovery of Ionic Substances from Wastewater by Seeded Reaction Crystallization

Shimizu, Y. & Hirasawa, I., 2012 Jun, In : Chemical Engineering and Technology. 35, 6, p. 1051-1054 4 p.

Research output: Contribution to journalArticle

Crystallization
Wastewater
Ions
Recovery
Crystals
11 Citations (Scopus)

Secondary nucleation-mediated effects of stirrer speed and growth rate on induction time for unseeded solution

Kobari, M., Kubota, N. & Hirasawa, I., 2012 Aug 21, In : CrystEngComm. 14, 16, p. 5255-5261 7 p.

Research output: Contribution to journalArticle

Supercooling
induction
Nucleation
nucleation
supercooling
3 Citations (Scopus)

Single-Jet Precipitation of Silver Nanocrystals in the Presence of Poly(acrylic) Acid

Mikami, T., Nagahori, T., Saito, J. & Hirasawa, I., 2012 Apr, In : Chemical Engineering and Technology. 35, 4, p. 700-704 5 p.

Research output: Contribution to journalArticle

carbopol 940
Silver
Nanocrystals
Acrylics
Crystals
2011
19 Citations (Scopus)

Computer simulation of metastable zone width for unseeded potassium sulfate aqueous solution

Kobari, M., Kubota, N. & Hirasawa, I., 2011 Feb 15, In : Journal of Crystal Growth. 317, 1, p. 64-69 6 p.

Research output: Contribution to journalArticle

Potassium
sulfates
potassium
Nucleation
computerized simulation