Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.11
Y. Shimoyama
Supercritical extraction can be applied for separation and purification of bioactive compounds in pharmaceutical and cosmetic fields. Recently, microfluidic system has been utilized for the supercritical extraction because of controllable mass and heat transfer. The flow patterns in the microfluidic system for supercritical CO2 + solvent mixture are also studied at various operation factors, such as temperature, pressure, flow rate and solvent species. This article gives the extraction of phenolic acids into supercritical CO2 from the aqueous solution using microfluid system. The effect of the flow patterns in the microfluid system on the extraction efficiency is also discussed. [supercritical extraction, phenolic acid, separation and purification, microfluidic system, slug flow]
{"title":"Supercritical Extraction Using Microfluidic System","authors":"Y. Shimoyama","doi":"10.4131/jshpreview.31.11","DOIUrl":"https://doi.org/10.4131/jshpreview.31.11","url":null,"abstract":"Supercritical extraction can be applied for separation and purification of bioactive compounds in pharmaceutical and cosmetic fields. Recently, microfluidic system has been utilized for the supercritical extraction because of controllable mass and heat transfer. The flow patterns in the microfluidic system for supercritical CO2 + solvent mixture are also studied at various operation factors, such as temperature, pressure, flow rate and solvent species. This article gives the extraction of phenolic acids into supercritical CO2 from the aqueous solution using microfluid system. The effect of the flow patterns in the microfluid system on the extraction efficiency is also discussed. [supercritical extraction, phenolic acid, separation and purification, microfluidic system, slug flow]","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.184
D. Aoki
青木 大 Dai AOKI A He-activated loading-cell for uniaxial pressure experiments is presented. The cell is based on a He bellow with a piezo force sensor and anvils. The uniaxial pressure is varied at low temperature by tuning the He gas pressure outside of the cryostat. Three experimental results under uniaxial pressure are demonstrated, that is, reentant superconductivity in ferromagnetic superconductor URhGe, uniaxial pressure tuned ``hidden order'' and antiferromagnetism in URu 2 Si 2 , and uniaxial pressure expansion,
{"title":"Low Temperature Properties of Uranium Compounds Using Uniaxial Cell Driven by He Gas","authors":"D. Aoki","doi":"10.4131/jshpreview.31.184","DOIUrl":"https://doi.org/10.4131/jshpreview.31.184","url":null,"abstract":"青木 大 Dai AOKI A He-activated loading-cell for uniaxial pressure experiments is presented. The cell is based on a He bellow with a piezo force sensor and anvils. The uniaxial pressure is varied at low temperature by tuning the He gas pressure outside of the cryostat. Three experimental results under uniaxial pressure are demonstrated, that is, reentant superconductivity in ferromagnetic superconductor URhGe, uniaxial pressure tuned ``hidden order'' and antiferromagnetism in URu 2 Si 2 , and uniaxial pressure expansion,","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.18
Toshiyuki Sato
Using Microspace 佐藤 敏幸 Toshiyuki SATO In this article, spinel structure MFe 2 O 4 ( M ＝ Ni, Cu, Zn ) nanoparticles from Fe ( NO 3 ) 3 and M ( NO 3 ) 2 ( M ＝ Ni, Cu, Zn ) aqueous solutions could be synthesized continuously with a flow reactor at 673 K, 30 MPa, and 0.35 2.00 s residence time. The particles were characterized by TEM, XRD, and XRF to obtain sizes, crystal structures, lattice parameters, and molar ratios, respectively. Solid solution nanoparticles of MFe 2 O 4 with a cu-bic spinel structure and an average particle size under 20 nm were obtained. M / Fe molar ratio of the obtained particles evaluated by XRF analyses was lower than the ratio in the stating solution. This result suggests the for-mation of nonstoichiometric MFe 2 O 4 particles. Further, minimal M / Fe molar ratio of the particle to maintain stable phase at 673 K was investigated by calcination at 673 K for 3 h and it was found to be 0.35 for Zn / Fe. ［ water, metal oxide,
{"title":"Continuous Reactive Crystallization of Metal Oxide Nanoparticles with the Spinel Structure in Hot-Compressed Water Using Microspace","authors":"Toshiyuki Sato","doi":"10.4131/jshpreview.31.18","DOIUrl":"https://doi.org/10.4131/jshpreview.31.18","url":null,"abstract":"Using Microspace 佐藤 敏幸 Toshiyuki SATO In this article, spinel structure MFe 2 O 4 ( M ＝ Ni, Cu, Zn ) nanoparticles from Fe ( NO 3 ) 3 and M ( NO 3 ) 2 ( M ＝ Ni, Cu, Zn ) aqueous solutions could be synthesized continuously with a flow reactor at 673 K, 30 MPa, and 0.35 2.00 s residence time. The particles were characterized by TEM, XRD, and XRF to obtain sizes, crystal structures, lattice parameters, and molar ratios, respectively. Solid solution nanoparticles of MFe 2 O 4 with a cu-bic spinel structure and an average particle size under 20 nm were obtained. M / Fe molar ratio of the obtained particles evaluated by XRF analyses was lower than the ratio in the stating solution. This result suggests the for-mation of nonstoichiometric MFe 2 O 4 particles. Further, minimal M / Fe molar ratio of the particle to maintain stable phase at 673 K was investigated by calcination at 673 K for 3 h and it was found to be 0.35 for Zn / Fe. ［ water, metal oxide,","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.247
Tomoaki Kimura
{"title":"Earth and Planetary Material Science Advanced by Combining DAC Experimental and CO2 Laser Heating Techniques","authors":"Tomoaki Kimura","doi":"10.4131/jshpreview.31.247","DOIUrl":"https://doi.org/10.4131/jshpreview.31.247","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.43
T. Ishii
{"title":"Report on Young Researchers Association 2020 via Online Meeting","authors":"T. Ishii","doi":"10.4131/jshpreview.31.43","DOIUrl":"https://doi.org/10.4131/jshpreview.31.43","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
博亮 Hiroaki MATSUKAWA In this article, the phase equilibrium measurement based on the synthetic method under high pressure using reflected light is presented. The vapor phase separation point was determined by measuring the displacement of the piston with a laser displacement meter using the rapid volume change caused by the vapor phase generation. The liquid phase separation point was determined by measuring the reflected light intensity with a light sensor using the light scattering caused by the liquid phase generation. This method was successful in
{"title":"Measurement of Phase Equilibrium at High-Pressure Using Reflected Light","authors":"Hiroaki Matsukawa","doi":"10.4131/jshpreview.31.4","DOIUrl":"https://doi.org/10.4131/jshpreview.31.4","url":null,"abstract":"博亮 Hiroaki MATSUKAWA In this article, the phase equilibrium measurement based on the synthetic method under high pressure using reflected light is presented. The vapor phase separation point was determined by measuring the displacement of the piston with a laser displacement meter using the rapid volume change caused by the vapor phase generation. The liquid phase separation point was determined by measuring the reflected light intensity with a light sensor using the light scattering caused by the liquid phase generation. This method was successful in","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.248
H. Taniguchi
{"title":"Pressure-Induced Dimensional Crossover in the Quasi-One-Dimensional Superconductor Pr2Ba4Cu7O15-δ","authors":"H. Taniguchi","doi":"10.4131/jshpreview.31.248","DOIUrl":"https://doi.org/10.4131/jshpreview.31.248","url":null,"abstract":"","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.54
F. Abe
文快 Fumiyoshi ABE High hydrostatic pressure in the range of several dozen MPa, are generally assumed to be nonlethal but exert ad-verse impacts on growth of organisms that are adapted to atmospheric pressure. Deep-sea organisms have estab-lished intracellular mechanisms to cope with such extreme environments. A living cell is composed of myriad molecules including nucleic acids, proteins, lipids, ions, and various low molecular compounds. These molecules interact with each other transiently or statically, eventually eliciting innumerable intermolecular interactions even in a small microbial cell. The complexity hampers the understandings of adaptive mechanisms to high pressure employed by deep-sea organisms. Studies with model organisms such as a bacterium Escherichia coli and a yeast Saccharomyces cerevisiae offer breakthroughs to unravel the effects of high pressure on the complex intermolecular networks in living cells. This review summarizes recent advances in high-pressure biology as well as classic issues in this field, especially focusing on remodeling of intracellular systems to adapted to
{"title":"The Effects of High Hydrostatic Pressure on the Complex Intermolecular Networks in a Living Cell","authors":"F. Abe","doi":"10.4131/jshpreview.31.54","DOIUrl":"https://doi.org/10.4131/jshpreview.31.54","url":null,"abstract":"文快 Fumiyoshi ABE High hydrostatic pressure in the range of several dozen MPa, are generally assumed to be nonlethal but exert ad-verse impacts on growth of organisms that are adapted to atmospheric pressure. Deep-sea organisms have estab-lished intracellular mechanisms to cope with such extreme environments. A living cell is composed of myriad molecules including nucleic acids, proteins, lipids, ions, and various low molecular compounds. These molecules interact with each other transiently or statically, eventually eliciting innumerable intermolecular interactions even in a small microbial cell. The complexity hampers the understandings of adaptive mechanisms to high pressure employed by deep-sea organisms. Studies with model organisms such as a bacterium Escherichia coli and a yeast Saccharomyces cerevisiae offer breakthroughs to unravel the effects of high pressure on the complex intermolecular networks in living cells. This review summarizes recent advances in high-pressure biology as well as classic issues in this field, especially focusing on remodeling of intracellular systems to adapted to","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70236805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.224
Suguru Hosoi, T. Shibauchi
Suguru HOSOI 1, 芝内 孝禎 Takasada SHIBAUCHI 2 In the iron-based superconductors, elastoresistance has successfully explored the anisotropic electronic instabili-ty associated with nematic order, recognized as nematic susceptibility. This article reviews the techniques of elastoresistance measurements using the piezoelectric actuators and the behaviors of nematic susceptibility in various iron-based superconductors, including FeSe 1 － x S x , hole-doped BaFe 2 As 2 system, and the iron-ladder materials BaFe 2 S 3 . In addition, we report non-linear strain dependence of resistivity anisotropy inside the nematic revealed by applying the large strain using the platform techniques. ［ elastoresistance, nematic
{"title":"Nematic Susceptibility of the Iron-Based Superconductors Probed by Elastoresistance Measurements","authors":"Suguru Hosoi, T. Shibauchi","doi":"10.4131/jshpreview.31.224","DOIUrl":"https://doi.org/10.4131/jshpreview.31.224","url":null,"abstract":" Suguru HOSOI 1, 芝内 孝禎 Takasada SHIBAUCHI 2 In the iron-based superconductors, elastoresistance has successfully explored the anisotropic electronic instabili-ty associated with nematic order, recognized as nematic susceptibility. This article reviews the techniques of elastoresistance measurements using the piezoelectric actuators and the behaviors of nematic susceptibility in various iron-based superconductors, including FeSe 1 － x S x , hole-doped BaFe 2 As 2 system, and the iron-ladder materials BaFe 2 S 3 . In addition, we report non-linear strain dependence of resistivity anisotropy inside the nematic revealed by applying the large strain using the platform techniques. ［ elastoresistance, nematic","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70237061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.4131/jshpreview.31.74
Tomokazu Kinoshita, G. Fukuhara
Hydrostatic pressure is one of the fundamental and significant external stimuli, and thus, has attracted attention in synthetic chemistry and photo-physical and -chemical processes. In considering weak interaction systems such as biological and supramolecular reactions on the basis of thermodynamics, enthalpy and entropy changes exquisitely keep the balance each other according to the enthalpy-entropy compensation law, meaning that it seems to be difficult to control reactions/rates by only either of these parameters. On the other hand, reaction/activation volume change (DV)-based hydorstatic pressure (P) control turns out to be an alternative to the conventional control method. In this review, we wish to report our recent hydrostatic pressure-spectroscopic results on DV as solvation, conformational change, molecular recognition, and biological reaction. [hydrostatic pressure, spectroscopy, conformational change, solvation, molecular recognition, photophysics]
{"title":"New Trends in Hydrostatic Pressure Spectroscopy towards from Molecules to Living Cells","authors":"Tomokazu Kinoshita, G. Fukuhara","doi":"10.4131/jshpreview.31.74","DOIUrl":"https://doi.org/10.4131/jshpreview.31.74","url":null,"abstract":"Hydrostatic pressure is one of the fundamental and significant external stimuli, and thus, has attracted attention in synthetic chemistry and photo-physical and -chemical processes. In considering weak interaction systems such as biological and supramolecular reactions on the basis of thermodynamics, enthalpy and entropy changes exquisitely keep the balance each other according to the enthalpy-entropy compensation law, meaning that it seems to be difficult to control reactions/rates by only either of these parameters. On the other hand, reaction/activation volume change (DV)-based hydorstatic pressure (P) control turns out to be an alternative to the conventional control method. In this review, we wish to report our recent hydrostatic pressure-spectroscopic results on DV as solvation, conformational change, molecular recognition, and biological reaction. [hydrostatic pressure, spectroscopy, conformational change, solvation, molecular recognition, photophysics]","PeriodicalId":39932,"journal":{"name":"Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70237488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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