Synthesis of calcium oxalate crystals in culture medium irradiated with non-equilibrium atmospheric-pressure plasma

Kurake, Naoyuki; Tanaka, Hiromasa; Ishikawa, Kenji; Nakamura, Kae; Kajiyama, Hiroaki; Kikkawa, Fumitaka; Mizuno, Masaaki; Yamanishi, Yoko; Hori, Masaru

doi:10.7567/apex.9.096201

Cited by 10 publications

(7 citation statements)

References 38 publications

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“…The most common use of this features in the scientific field is to produce nanoparticles, but it was also recently discovered that a plasma irradiated culture medium could crystallize calcium oxalate 18 . However, this work is the first effort to better understand which differences an electric discharge would produce in the crystallization of salts from a saturated solution.…”

Section: Introductionmentioning

confidence: 99%

Sodium Chloride Crystallization by Electric Discharge in Brine

et al. 2017

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Electrical discharges in liquids are currently used to synthesize nanoparticles. The plasma-liquid interaction is complex, where parameters such as electric field, ion charges and other species present are important. In order to understand the mechanism of crystallization, mother liquor (saturated solution of NaCl, MgCl 2 and KCl) was used to study the effectiveness and selectivity of the crystallization caused by the application of plasma. Discharge was applied with the solution at room temperature or during cooling. X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and chemical analysis was used to evaluate the structure and composition effects on crystal structure and composition. It was observed that the discharge induces selectively crystallization, and when compared to crystals obtained conventionally by cooling, were smaller and more uniform. We therefore confirm that plasma in liquid can also be used to selectively crystallize materials in atmospheric pressure, where the sizes of the crystals must be dependent on the parameters used.

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Section: Introductionmentioning

confidence: 99%

Sodium Chloride Crystallization by Electric Discharge in Brine

et al. 2017

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“…When breakdown occurred between the electrode and droplet surface, deformation of the water surface was observed (figure 3(A)). This phenomenon, known as the Taylor cone, has already been reported by several researchers [4]. Although the study is not new, the mechanisms of the formation of a Taylor cone have not been understood in detail [16].…”

Section: Resultsmentioning

confidence: 62%

“…Recent developments in areas such as the precipitation of nanoparticles from solution and seawater desalination have led to renewed interest in the mechanism and kinetics of crystal growth on a solution surface [2,3]. For example, nanomaterial synthesis through plasma-liquid interactions (PLIs) has been developing rapidly, mainly due to the various plasma sources that have recently been developed to operate at atmospheric pressures [4][5][6][7]. Some research has examined complex reactions on PLIs, such as charge transfer reactions and reactions with reactive plasma neutral species [8].…”

mentioning

confidence: 99%

Applying pulsed corona discharge in hypersaline droplets

Almada

Fontes

Vitoriano

et al. 2020

J. Phys. D: Appl. Phys.

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Crystallization of salts in droplets of hypersaline solution placed on a glass slide was monitored and evaluated under controlled conditions of temperature and humidity. Pulsed corona discharge (PCD) was applied over sessil droplets on a glass surface, and its effect in the crystallization is demonstrated for the first time. These results were compared with natural evaporation. Under natural evaporation, crystals are firstly formed on surface, near edges of the drop and grow towards the center, eventually acquiring a pyramidal morphology. Under PCD, a Taylor cone is formed between electrode and droplet surface and then, 4 s after the beginning of the discharge, small crystals were formed on the cone besides a dense crystal film around the discharge incidence point in the droplet. These results are discussed considering existing knowledge about plasma–liquid interaction (PLI) and dynamical of crystal growth. This paper explores an interesting aspect of PLIs, which has both fundamental and practical usefulness, for understanding desalination processes, salt crystallization on water surface and biomedical science for advances in electrosurgical methods.

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“…Although various methods, such as the solvothermal, [11][12][13] microwave irradiation, 14,15) electrochemical, 16) discharge plasma, [17][18][19][20] and laser-induced plasma 21) methods exist for MOF synthesis, the reported methods with external energies apply a continuous external energy during MOF formation. However, an initial/short plasma treatment can reportedly modify the subsequent crystallization in liquid, 22,23) thus indicating that a continuous energy supply is not always necessary for the crystallization process. Research on the effect of laserinduced plasma on the MOF formation process or on the effect of plasma treatments only at the early stage is limited; hence, this study aimed to determine how the laser-induced plasma treatment at the early stage can control the subsequent formation process of HKUST-1.…”

Section: Introductionmentioning

confidence: 99%

HKUST-1 formation in solution influenced by laser-induced plasma at the early stage

Chiba,

Kanno,

Muneoka

et al. 2024

Jpn. J. Appl. Phys.

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A suspension containing the raw materials of HKUST-1, which is a metal-organic framework (MOF), is irradiated by a nanosecond-pulsed laser at 532 nm to generate plasma only at the early stage (5–30 min) of the formation process. Depending on the plasma treatment conditions, HKUST-1 begins forming after the laser-induced plasma generation is stopped. The formation of HKUST-1 can be represented by the Gualtieri model, thus suggesting that the plasma treatment only at the early stage influences the formation process by modifying the nucleation and growth rates.

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Synthesis of calcium oxalate crystals in culture medium irradiated with non-equilibrium atmospheric-pressure plasma

Cited by 10 publications

References 38 publications

Sodium Chloride Crystallization by Electric Discharge in Brine

Sodium Chloride Crystallization by Electric Discharge in Brine

Applying pulsed corona discharge in hypersaline droplets

HKUST-1 formation in solution influenced by laser-induced plasma at the early stage

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