Biomedical applications and diagnostics of atmospheric pressure plasma

Petrović, Zoran Lj.; Puаč, Nevena; Lazović, Saša; Maletic, Dejan; Spasić, Kosta; Malović, Gordana

doi:10.1088/1742-6596/356/1/012001

Cited by 13 publications

(5 citation statements)

References 19 publications

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“…LTPs do not cause thermal or chemical damage to the treated surface, presenting an advantage over conventional sterilization techniques [ 140 , 142 ]. Furthermore, LTPs have also been shown to be effective in the treatment of biofilms, minimizing bacterial formation posttreatment [ 101 , 143 ] and greatly reducing cell viability even at short plasma-exposures [ 144 ]. These attributes give potential for applications in dentistry [ 145 , 146 ].…”

Section: Low-temperature Plasmas and Their Use In Biomedicinementioning

confidence: 99%

Low Temperature Plasma: A Novel Focal Therapy for Localized Prostate Cancer?

Hirst

Frame

Maitland

et al. 2014

BioMed Research International

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Despite considerable advances in recent years for the focal treatment of localized prostate cancer, high recurrence rates and detrimental side effects are still a cause for concern. In this review, we compare current focal therapies to a potentially novel approach for the treatment of early onset prostate cancer: low temperature plasma. The rapidly evolving plasma technology has the potential to deliver a wide range of promising medical applications via the delivery of plasma-induced reactive oxygen and nitrogen species. Studies assessing the effect of low temperature plasma on cell lines and xenografts have demonstrated DNA damage leading to apoptosis and reduction in cell viability. However, there have been no studies on prostate cancer, which is an obvious candidate for this novel therapy. We present here the potential of low temperature plasma as a focal therapy for prostate cancer.

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Section: Low-temperature Plasmas and Their Use In Biomedicinementioning

confidence: 99%

Low Temperature Plasma: A Novel Focal Therapy for Localized Prostate Cancer?

Hirst

Frame

Maitland

et al. 2014

BioMed Research International

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“…Subsequently, the temperature of the region involved in the process experiences rapid and significant elevation, reaching the threshold required for vaporization [10]. Applications of laser-induced plasma have currently spread to numerous fields for elemental composition determination of products [11], biomedical applications [12], geological studies [13], mineral mining process control [14], etc. Tin (Se) is a unique semiconductor material of tetragonal structure with an energy gap of about 3.6 eV [15,16].…”

Section: Introductionmentioning

confidence: 99%

Influence of Laser Energy on the Structural and Optical Properties of Sn Nanoparticles produced with Laser-Induced Plasma

Ahmed,

Ahmed

2024

IJP

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This study aimed to investigate the structure and optical properties of Sn nanostructures. Thin tin (Sn) films were deposited on glass substrates using the pulsed laser deposition method. Nd:YAG laser with fundamental wavelengths of 532 nm and 1064 nm was used to create Sn nanostructures with varying energies of 400 mJ to 700 mJ and the same frequency of 6 Hz. The tin powder was compressed into a disc with a one-centimetre diameter to serve as a sample. The X-ray diffraction (XRD) pattern showed a crystalline structure with several Sn nanostructures peaks at various energies (400–700 mJ). The results revealed a crystalline size of 65.90 nm and 86.55 nm at 700 mJ, while the size was 40.19 nm and 17.19 at 400 mJ for the given wavelengths (532nm and 1064 nm), respectively. The appearance of Sn nanostructures and the aggregation of, particularly in the form of cauliflower, were revealed in Field emission scanning electron microscopy (FE-SEM) images. The results of the dispersive energy X-ray spectroscopy (EDS) analysis showed that various amounts of tin, carbon, and oxygen were present. Additionally, the optical characteristics were investigated of each film using absorbance spectra, which covered a range of wavelengths from 190 to 1100 nm. As the laser power increased, the band gap energy values in the optical properties decreased, falling into the ranges of 3.06 to 1.65 eV and 3.22 to 1.82 eV at 1064nm and 532nm, respectively.

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“…Utilizing lasers with varied targets can perform an analysis of the sample's constituents in real-time, which is referred to as online analysis [9]. Applications of LIBS have now spread to numerous fields for elemental composition determination of products [10], biomedical applications [11], environmental applications [12], geological studies [13], and mineral mining process control [14].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Magnetized-Plasma System Induced by Laser

Abbas,

Abbas

2023

IJP

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This study investigated the effect of applying an external magnetic field on the characteristics of laser-induced plasma, such as its parameters plasma, magnetization properties, emission line intensities, and plasma coefficients, for plasma induced from zinc oxide: aluminum composite (ZO:AL) at an atomic ratio of 0.3 %. Plasma properties include magnetization and emission line intensities. The excitation was done by a pulsed laser of Nd:YAG with 400 mJ energy at atmospheric pressure. Both the electron temperature and number density were determined with the help of the Stark effect principle and the Boltzmann-Plot method. There was a rise in the amount of (ne) and (Te) that was produced by applying a magnetic field and, on the other hand, using the 532 nm wavelength rather than the fundamental wavelength of a laser. The emission lines in the atmosphere's plasma have an appearance of Lorentzian shape. The 532 nm laser exhibited a decrease in both the Larmor radius and the confinement factor compared with the 1064 nm laser. By applying the magnetic field, the Laser Induced Breakdown Spectroscopy (LIBS) intensities increased by 1.44 times when compared to the emissions before applying the field. In addition, the spectral line intensities improved with the fundamental wavelength compared to the second harmonic frequency as a result of the increase in the extracted materials. This is due to the increase in the absorbance of the laser by the target, as some of these materials are excited, so they act as emission sources, which makes them more detectable.

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Biomedical applications and diagnostics of atmospheric pressure plasma

Cited by 13 publications

References 19 publications

Low Temperature Plasma: A Novel Focal Therapy for Localized Prostate Cancer?

Low Temperature Plasma: A Novel Focal Therapy for Localized Prostate Cancer?

Influence of Laser Energy on the Structural and Optical Properties of Sn Nanoparticles produced with Laser-Induced Plasma

Characterization of Magnetized-Plasma System Induced by Laser

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