A5044068520- Laser-induced spectroscopy and plasma
- Laser Material Processing Techniques
- Laser-Ablation Synthesis of Nanoparticles
- Surface Roughness and Optical Measurements
- Diamond and Carbon-based Materials Research
- Thermoregulation and physiological responses
- Advanced Surface Polishing Techniques
- Infrared Thermography in Medicine
- Ocular and Laser Science Research
- Electrohydrodynamics and Fluid Dynamics
- Optical Imaging and Spectroscopy Techniques
- Atmospheric chemistry and aerosols
- Surface Modification and Superhydrophobicity
- Analytical Chemistry and Sensors
- Ion-surface interactions and analysis
- Analytical chemistry methods development
- Air Quality and Health Impacts
- Silymarin and Mushroom Poisoning
- Laser Applications in Dentistry and Medicine
- Biocrusts and Microbial Ecology
- Dental materials and restorations
- Graphene research and applications
- Drug Solubulity and Delivery Systems
- Adhesion, Friction, and Surface Interactions
- Photoreceptor and optogenetics research
University of Szeged
2014-2024
MTA-SZTE Research Group on Artificial Intelligence
2015
Hungarian Academy of Sciences
2004-2014
We present an investigation on absorbing film assisted laser induced forward transfer (AFA-LIFT) of fungus (Trichoderma) conidia. A KrF excimer beam [λ=248nm,FWHM=30ns (FWHM, full width at half maximum)] was directed through a quartz plate and focused onto its silver coated surface where conidia the Trichoderma strain were uniformly spread. The fluence varied in range 0–2600mJ∕cm2 each pulse transferred pixel target material. average irradiated area 8×10−2mm2. After procedure, yeast extract...
The machining process of transparent materials using the laser induced backside wet etching (LIBWE) procedure was studied. In course this, experimental investigations and numerical calculations were carried out. Fused silica plates irradiated by an ArF excimer laser, a naphthalene–methyl methacrylate solution as absorbing liquid (concentration 0.85 mol dm−3, absorption coefficient at 193 nm 52 200 cm−1). etch rate dependence on applied fluence (varied from 110 to 860 mJ cm−2) derived depths,...
We have characterized the absorbing film assisted transfer of Trichoderma longibrachiatum conidia using a synchronized laser for illumination. The used was KrF excimer (? = 248?nm, FWHM 30?ns) and ejected material illuminated parallel to quartz plate by nitrogen pumped Coumarine 153 dye beam 453?nm, 1?ns) electronically delayed relative UV pulse. Our time-resolved investigations determined that ejection velocity front plume from donor surface during procedure 1150?m?s?1 at 355?mJ?cm?2...
Laser micromachining of transparent materials is a promising technique for producing micro-optical elements. Several types both direct (e.g. ablation) and indirect laser-induced backside wet etching: LIBWE) procedures have already been developed presented in the last two decades. Here we present new method (laser-induced dry etching (LIBDE)) analogy LIBWE micro nanoprocessing materials.In our experiments 1 mm thick fused silica plates were used as work pieces. The covered with 100 nm silver...
Counterfeiting of the products for healing is as old trading, and it difficult to quantify magnitude problem. It known that substandard and/or falsified (SF) medicines are a growing global threat health, they cause serious social economic damage. The EU has strong legal framework medicines, mandatory meet requirements Directive 2011/62/EU. Serialisation prevents SF medicinal from entering distribution chain. present study an extension original idea aims develop laser technology-based method...
Abstract We studied the application of pulsed laser ablation (PLA) for particle size reduction in non-steroidal anti-inflammatory drugs (NSAIDs). Grinding poorly water-soluble NSAID crystallites can considerably increase their solubility and bioavailability, thereby necessary doses be reduced significantly. used tablets ibuprofen, niflumic acid meloxicam as targets. Nanosecond pulses were applied at various wavelengths (KrF excimer laser, λ = 248 nm, FWHM 18 ns Nd:YAG 1 532 nm/λ 2 1064 6 ns)...
Abstract. In this work various microphysical properties including mass concentration, size distribution and morphology of aerosol particles generated by laser ablation a high purity graphite sample were investigated in detail. Supplementary chemical analysis the microstructure investigation high-resolution transmission electron microscopy (HRTEM) Raman spectroscopy also made. These measurements proved that proposed method can be used to model real atmospheric carbonaceous particulate under...
Abstract Urease thin films have been immobilized using matrix‐assisted pulsed laser evaporation for biosensor applications in clinical diagnostics. The targets exposed to radiation were made of frozen composites that had manufactured by dissolving urease distilled water. An UV KrF* (λ = 248 nm, τ FWHM ≅ 30 ns, ν 10 Hz) excimer source was used the multipulse irradiation cooled down solidification Peltier elements. incident fluence set at 0.4 J/cm 2 . surface morphology and chemical bonding...
Photoreactive composite thin layers with tunable wetting properties from superhydrophilic to superhydrophobic nature were prepared.To achieve extreme properties, the adequate surface roughness is a crucial factor, which was achieved by incorporation of plasmonic Ag-TiO 2 particles, as polymer filler, into smooth film adjusted hydrophilicity.The initial copolymer films synthesized hydrophilic 2-hydroxyethyl-acrylate (HEA) and hydrophobic perfluorodecyl-acrylate (PFDAc) monomers.In case PFDAc,...
Nanostructures are of increasing importance in manifold application fields such as electronics, optics and beyond. However, the fast cost-effective production nanostructures is a big technological challenge for laser machining. One promising approach irradiation thin metal layers, which allows fabrication induced by melting transformation process. The influence parameters (laser fluence, pulse number) on morphology nanopatterned film dynamics nanostructure formation during excimer 20 nm...
Recently, the number of water insoluble and poorly soluble drug compounds has increased significantly. Therefore, growing interest been witnessed in different particle size reduction techniques to improve dissolution rates, transport characteristics bioavailability drugs. Laser ablation proven be an alternative method production nano- micrometre-sized particles without considerable chemical damage. We present nanosecond laser pastilles distilled water, targeting meloxicam, a nonsteroidal...