TY  - JOUR
AU  - Boni, Mihai
AU  - Staicu, Angela
AU  - Andrei, Ionut Relu
AU  - Smarandache, Adriana
AU  - Nastasa, Viorel
AU  - Šaponjić, Zoran
AU  - Pascu, Mihail Lucian
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8075
AB  - This work aims to investigate the effect of TiO 2 nanoparticles addition on the fluorescence emission of solutions of Rhodamine 6G excited in micro-volumetric droplets. In this paper are presented the similarities and the differences of the emission spectra by modifying parameters such as TiO 2 concentration, solutions pH and laser fluence. The pumping laser source used was the second harmonic beam emitted by a pulsed ns Nd:YAG laser at 532 nm. Lasing emission is observed and it is favorised by the solution acidity and laser beam intensity. © 2018, Editura Academiei Romane. All rights reserved.
T2  - Romanian Reports in Physics
T1  - TiO2 nanoparticles influence on rhodamine 6G droplet emission
VL  - 70
IS  - 4
SP  - Art. 513
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8075
ER  - 

@article{
author = "Boni, Mihai and Staicu, Angela and Andrei, Ionut Relu and Smarandache, Adriana and Nastasa, Viorel and Šaponjić, Zoran and Pascu, Mihail Lucian",
year = "2018",
abstract = "This work aims to investigate the effect of TiO 2 nanoparticles addition on the fluorescence emission of solutions of Rhodamine 6G excited in micro-volumetric droplets. In this paper are presented the similarities and the differences of the emission spectra by modifying parameters such as TiO 2 concentration, solutions pH and laser fluence. The pumping laser source used was the second harmonic beam emitted by a pulsed ns Nd:YAG laser at 532 nm. Lasing emission is observed and it is favorised by the solution acidity and laser beam intensity. © 2018, Editura Academiei Romane. All rights reserved.",
journal = "Romanian Reports in Physics",
title = "TiO2 nanoparticles influence on rhodamine 6G droplet emission",
volume = "70",
number = "4",
pages = "Art. 513",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8075"
}

Boni, M., Staicu, A., Andrei, I. R., Smarandache, A., Nastasa, V., Šaponjić, Z.,& Pascu, M. L.. (2018). TiO2 nanoparticles influence on rhodamine 6G droplet emission. in Romanian Reports in Physics, 70(4), Art. 513.
https://hdl.handle.net/21.15107/rcub_vinar_8075

Boni M, Staicu A, Andrei IR, Smarandache A, Nastasa V, Šaponjić Z, Pascu ML. TiO2 nanoparticles influence on rhodamine 6G droplet emission. in Romanian Reports in Physics. 2018;70(4):Art. 513.
https://hdl.handle.net/21.15107/rcub_vinar_8075 .

Boni, Mihai, Staicu, Angela, Andrei, Ionut Relu, Smarandache, Adriana, Nastasa, Viorel, Šaponjić, Zoran, Pascu, Mihail Lucian, "TiO2 nanoparticles influence on rhodamine 6G droplet emission" in Romanian Reports in Physics, 70, no. 4 (2018):Art. 513,
https://hdl.handle.net/21.15107/rcub_vinar_8075 .

TY  - JOUR
AU  - Živković, Sanja
AU  - Momčilović, Miloš
AU  - Staicu, Angela
AU  - Mutić, Jelena J.
AU  - Trtica, Milan
AU  - Savović, Jelena
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1427
AB  - The aim of this study was to develop a simple laser induced breakdown spectroscopy (LIBS) method for quantitative elemental analysis of powdered biological materials based on laboratory prepared calibration samples. The analysis was done using ungated single pulse LIBS in ambient air at atmospheric pressure. Transversely-Excited Atmospheric pressure (TEA) CO2 laser was used as an energy source for plasma generation on samples. The material used for the analysis was a blue-green alga Spirulina, widely used in food and pharmaceutical industries and also in a few biotechnological applications. To demonstrate the analytical potential of this particular LIBS system the obtained spectra were compared to the spectra obtained using a commercial LIBS system based on pulsed Nd:YAG laser. A single sample of known concentration was used to estimate detection limits for Ba, Ca, Fe, Mg, Mn, Si and Sr and compare detection power of these two LIES systems. TEA CO2 laser based LIES was also applied for quantitative analysis of the elements in powder Spirulina samples. Analytical curves for Ba, Fe, Mg, Mn and Sr were constructed using laboratory produced matrix-matched calibration samples. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used as the reference technique for elemental quantification, and reasonably well agreement between ICP and LIBS data was obtained. Results confirm that, in respect to its sensitivity and precision, TEA CO2 laser based LIBS can be successfully applied for quantitative analysis of macro and micro-elements in algal samples. The fact that nearly all classes of materials can be prepared as powders implies that the proposed method could be easily extended to a quantitative analysis of different kinds of materials, organic, biological or inorganic. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation
VL  - 128
SP  - 22
EP  - 29
DO  - 10.1016/j.sab.2016.12.009
ER  - 

@article{
author = "Živković, Sanja and Momčilović, Miloš and Staicu, Angela and Mutić, Jelena J. and Trtica, Milan and Savović, Jelena",
year = "2017",
abstract = "The aim of this study was to develop a simple laser induced breakdown spectroscopy (LIBS) method for quantitative elemental analysis of powdered biological materials based on laboratory prepared calibration samples. The analysis was done using ungated single pulse LIBS in ambient air at atmospheric pressure. Transversely-Excited Atmospheric pressure (TEA) CO2 laser was used as an energy source for plasma generation on samples. The material used for the analysis was a blue-green alga Spirulina, widely used in food and pharmaceutical industries and also in a few biotechnological applications. To demonstrate the analytical potential of this particular LIBS system the obtained spectra were compared to the spectra obtained using a commercial LIBS system based on pulsed Nd:YAG laser. A single sample of known concentration was used to estimate detection limits for Ba, Ca, Fe, Mg, Mn, Si and Sr and compare detection power of these two LIES systems. TEA CO2 laser based LIES was also applied for quantitative analysis of the elements in powder Spirulina samples. Analytical curves for Ba, Fe, Mg, Mn and Sr were constructed using laboratory produced matrix-matched calibration samples. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used as the reference technique for elemental quantification, and reasonably well agreement between ICP and LIBS data was obtained. Results confirm that, in respect to its sensitivity and precision, TEA CO2 laser based LIBS can be successfully applied for quantitative analysis of macro and micro-elements in algal samples. The fact that nearly all classes of materials can be prepared as powders implies that the proposed method could be easily extended to a quantitative analysis of different kinds of materials, organic, biological or inorganic. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation",
volume = "128",
pages = "22-29",
doi = "10.1016/j.sab.2016.12.009"
}

Živković, S., Momčilović, M., Staicu, A., Mutić, J. J., Trtica, M.,& Savović, J.. (2017). Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation. in Spectrochimica Acta. Part B: Atomic Spectroscopy, 128, 22-29.
https://doi.org/10.1016/j.sab.2016.12.009

Živković S, Momčilović M, Staicu A, Mutić JJ, Trtica M, Savović J. Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2017;128:22-29.
doi:10.1016/j.sab.2016.12.009 .

Živković, Sanja, Momčilović, Miloš, Staicu, Angela, Mutić, Jelena J., Trtica, Milan, Savović, Jelena, "Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 128 (2017):22-29,
https://doi.org/10.1016/j.sab.2016.12.009 . .

TY  - JOUR
AU  - Boni, Mihai
AU  - Staicu, Angela
AU  - Andrei, Ionut Relu
AU  - Smarandache, Adriana
AU  - Nastasa, Viorel
AU  - Čomor, Mirjana
AU  - Šaponjić, Zoran
AU  - Pascu, Mihail Lucian
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1483
AB  - Studies on the emission spectra of microdroplets containing Rh6G solutions in water doped with TiO2 nanoparticles are reported. The excitation is made by the second harmonic of a pulsed Nd:YAG laser at 532 nm, pulse duration at half maximum 6 ns and energy varied between 6 and 10 mJ. The laser induced emission spectra are analyzed function of TiO2 concentration and pumping laser energy. Comparison between fluorescence dispersed spectra emitted by pendant droplets containing TiO2 nanoparticles with respect to Rh6G water solutions droplets pumped in the same conditions is made. The surface tension measurements of the samples show that with variation of dye and nanoparticles concentrations, surface phenomena take place and influence the behavior of the droplet fluorescence. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. A: Physicochemical and Engineering Aspects
T1  - Studies on laser induced emission of microdroplets containing Rhodamine 6G solutions in water doped with TiO2 nanoparticles
VL  - 519
SP  - 238
EP  - 244
DO  - 10.1016/j.colsurfa.2016.07.033
ER  - 

@article{
author = "Boni, Mihai and Staicu, Angela and Andrei, Ionut Relu and Smarandache, Adriana and Nastasa, Viorel and Čomor, Mirjana and Šaponjić, Zoran and Pascu, Mihail Lucian",
year = "2017",
abstract = "Studies on the emission spectra of microdroplets containing Rh6G solutions in water doped with TiO2 nanoparticles are reported. The excitation is made by the second harmonic of a pulsed Nd:YAG laser at 532 nm, pulse duration at half maximum 6 ns and energy varied between 6 and 10 mJ. The laser induced emission spectra are analyzed function of TiO2 concentration and pumping laser energy. Comparison between fluorescence dispersed spectra emitted by pendant droplets containing TiO2 nanoparticles with respect to Rh6G water solutions droplets pumped in the same conditions is made. The surface tension measurements of the samples show that with variation of dye and nanoparticles concentrations, surface phenomena take place and influence the behavior of the droplet fluorescence. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects",
title = "Studies on laser induced emission of microdroplets containing Rhodamine 6G solutions in water doped with TiO2 nanoparticles",
volume = "519",
pages = "238-244",
doi = "10.1016/j.colsurfa.2016.07.033"
}

Boni, M., Staicu, A., Andrei, I. R., Smarandache, A., Nastasa, V., Čomor, M., Šaponjić, Z.,& Pascu, M. L.. (2017). Studies on laser induced emission of microdroplets containing Rhodamine 6G solutions in water doped with TiO2 nanoparticles. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 519, 238-244.
https://doi.org/10.1016/j.colsurfa.2016.07.033

Boni M, Staicu A, Andrei IR, Smarandache A, Nastasa V, Čomor M, Šaponjić Z, Pascu ML. Studies on laser induced emission of microdroplets containing Rhodamine 6G solutions in water doped with TiO2 nanoparticles. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2017;519:238-244.
doi:10.1016/j.colsurfa.2016.07.033 .

Boni, Mihai, Staicu, Angela, Andrei, Ionut Relu, Smarandache, Adriana, Nastasa, Viorel, Čomor, Mirjana, Šaponjić, Zoran, Pascu, Mihail Lucian, "Studies on laser induced emission of microdroplets containing Rhodamine 6G solutions in water doped with TiO2 nanoparticles" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 519 (2017):238-244,
https://doi.org/10.1016/j.colsurfa.2016.07.033 . .