Laser ablation of gold and titanium targets in heavy water

Kazakevich, V S; Kazakevich, P. V.; Yaresko, P. S.; Kazakevich, D. A.

doi:10.1088/1742-6596/1096/1/012123

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…Nanoparticle formation by laser ablation has been extensively investigated in terms of the influence of laser parameters, target properties and ambient conditions. Whereas previous research mainly focused on metals [ 1 , 2 , 3 , 4 , 5 ] and metal alloys [ 6 , 7 , 8 ], in the past decade more and more studies have been published on particle generation by the laser ablation of organic materials too [ 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Submicrometer-Sized Meloxicam Particles Using Femtosecond Laser Ablation in Gas and Liquid Environments

et al. 2021

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In pharmaceutical development, more and more drugs are classified as poorly water-soluble or insoluble. Particle size reduction is a common way to fight this trend by improving dissolution rate, transport characteristics and bioavailability. Pulsed laser ablation is a ground-breaking technique of drug particle generation in the nano- and micrometer size range. Meloxicam, a commonly used nonsteroidal anti-inflammatory drug with poor water solubility, was chosen as the model drug. The pastille pressed meloxicam targets were irradiated by a Ti:sapphire laser (τ = 135 fs, λc = 800 nm) in air and in distilled water. Fourier transform infrared and Raman spectroscopies were used for chemical characterization and scanning electron microscopy to determine morphology and size. Additional particle size studies were performed using a scanning mobility particle sizer. Our experiments demonstrated that significant particle size reduction can be achieved with laser ablation both in air and in distilled water without any chemical change of meloxicam. The size of the ablated particles (~50 nm to a few microns) is approximately at least one-tenth of the size (~10–50 micron) of commercially available meloxicam crystals. Furthermore, nanoaggregate formation was described during pulsed laser ablation in air, which was scarcely studied for drug/organic molecules before.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Submicrometer-Sized Meloxicam Particles Using Femtosecond Laser Ablation in Gas and Liquid Environments

et al. 2021

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“…Ablative laser synthesis of nanoparticles makes it possible to obtain spherical granules with a narrow granulometric composition [1,3,11]. However, this method also has a number of disadvantages, namely, the synthesized particles can have traces of fusion, together with the main material at the outlet, traces of "splashes" can be observing, and there can be pronouncing traces of the presence of a melt pool [12][13][14][15]. This fact leads to significant contamination of the ablation products, which makes it difficult to further using this powder material.…”

Section: Introductionmentioning

confidence: 99%

Investigation of material heating under the action of ultrashort laser pulses

Kharkova

Khorkov

Egorova

2022

J. Phys.: Conf. Ser.

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The aim of this work was to study the heating of an AISI 304 plate in the ablative mode of femtosecond laser pulses. The variable parameter was the change in the speed of movement of the laser beam over the treated surface. The paper presents the results of measuring the heating temperature of the sample surface exposed to laser radiation without scanning laser radiation with different pulse energies. The results of the dependence of the heating of the material surface on the speed of movement of the laser radiation with a constant number of acting pulses are presenting.

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“…The gold nanoparticles have applications in material science, Nanomedicine, electronics and photonics [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. This fact has led to numerous experimental and theoretical studies on the thermodynamic properties of gold [16][17][18][19][20][21][22][23][24][25][26][27]. The thermodynamic properties of substances are determined by the intermolecular interaction.…”

Section: Introductionmentioning

confidence: 99%

Determination of Second Virial Coefficient of Gold by a Modified Berthelot Equation of State

Sivakumar¹,

Balasubramanian²

2020

J. Hum. Earth Future

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The present study aims to determine the second virial coefficient of gold over a wide range of temperatures from the boiling point to the critical point. A three - parameter modified Berthelot equation of state has been employed to determine the second virial coefficient of gold. The parameters of the equation of state are determined through the critical - point parameters of gold. The temperature -dependence of the second virial coefficient of gold has been investigated. The obtained results are compared with that of the van der Waals equation of state, Berthelot equation of state, Tsonopoulus correlation, and McGlashan correlation. The results of this work agree well with that of other correlations in the vicinity of the critical point. It is also established that gold obeys the single - parameter law of corresponding states. And, the new parameter introduced in the attractive term of the equation of state is found to be a thermodynamic similarity parameter. Doi: 10.28991/HEF-2020-01-04-02 Full Text: PDF

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Laser ablation of gold and titanium targets in heavy water

Cited by 4 publications

References 7 publications

Fabrication of Submicrometer-Sized Meloxicam Particles Using Femtosecond Laser Ablation in Gas and Liquid Environments

Fabrication of Submicrometer-Sized Meloxicam Particles Using Femtosecond Laser Ablation in Gas and Liquid Environments

Investigation of material heating under the action of ultrashort laser pulses

Determination of Second Virial Coefficient of Gold by a Modified Berthelot Equation of State

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