[institut] Photonics Center seminar, Thursday, 09th May 2019, 11:00

[Dr. Dragan D. Markushev]

Dear colleagues,

you are cordially invited to the Photonics Center seminar of the 
Laboratory for Photoacoustics, which will be held on Thursday, 09th May 
2019 at 11:00 in the library reading room "Dr. Dragan Popović" of the 
Institute of Physics Belgrade. The talk entitled

                               "Novel Applications of Photothermal 
Techniques in Environmental Analysis, Medical Diagnostics and in 
Characterization of Related Materials"

will be given by Prof. Dr. Mladen Franko from the Laboratory for 
Environmental and Life Sciences, University of Nova Gorica, Nova Gorica, 
Slovenia (http://www.ung.si/en/).
The abstract of the talk is provided below.


The objective of this presentation is to present some selected 
applications of thermal lens spectrometry (TLS) and beam deflection 
spectrometry (BDS) in environmental and biomedical research and in the 
nondestructive characterization of related materials.
In the first part, novel approaches to the speciation of iron in 
environmental samples by exploiting the advantages of photothermal 
techniques such as TLS and BDS will be discussed. This includes 
determination of iron redox species by coupling of TLS to flow injection 
analysis (FIA) and TLS microscopy to microfluidic systems (FIA-TLM) 
recently shown to provide limits of detection at ng/mL level in sub L 
samples. TLS was also applied for detection in liquid chromatography for 
determination of fluorescing pyoverdines as well as 
nonfluorescingFe(III)-pyoverdine complexes in a single chromatographic 
run. Application of BDS was related to the analysis of passive samplers 
based on diffusive gradients in thin-films (DGT) technique, which is 
increasingly used for monitoring of environmental pollution due to its 
robustness, versatility, precision, and capacity of pre-concentrating 
bioavailable trace-level metal pollutants.
In the field of medical diagnostics and structural characterization of 
related materials most interesting recent achievements include 
applications of HPLC-TLS for detection of free bilirubin, an important 
endogenous antioxidant in vascular endothelial cells. μFIA-TLM and 
magnetic nanoparticles were exploited for high sample throughput and 
sensitive determination of HPV - human papillomavirus antibodies and 
NGAL - a biomarker of acute kidney injury.
BDS was used for non-destructive characterization and determination of 
thermal properties and porosity of silicon/zirconium hybrid 
anticorrosion layers for medical implants, as well as to investigate the 
influence of cerium on these properties. In another study, the thickness 
of subsurface layers in chitosan aerogel-coatings for protection of 
steel implants, and the concentration of pharmaceuticals in thin layers 
was determined on the basis of thermal conductivity and diffusivity of 
materials measured by BDS.


Selected publications:

[1] Viktoriya R. Galimova, Mingqiang Liu, Mladen Franko, et al., 
"Hemichrome determination by thermal lensing with polyethylene glycols 
for signal enhancement in aqueous solutions", Analytical letters, [Print 
ed.], 2018, vol. 51, iss. 11, str. 1743-1762, ISSN 0003-2719, DOI: 
10.1080/00032719.2017.1391828. [COBISS.SI-ID 5136891]

[2] Uroš Maver, Klodian Xhanari, Marko Žižek, Dorota Korte, Lidija 
Gradišnik, Mladen Franko, Matjaž Finšgar, "A combination of 
interdisciplinary analytical tools for evaluation of multi-layered 
coatings on medical grade stainless steel for biomedical applications", 
European journal of pharmaceutics and biopharmaceutics, [Print ed.], 
July 2018, vol. 128, str. 230-246, ilustr., ISSN 0939-6411, DOI: 
10.1016/j.ejpb.2018.05.002. [COBISS.SI-ID 21403414]

[3] Mikhail A. Proskurnin, Dorota Korte, Mladen Franko, et al., 
"Photothermal beam deflection spectroscopy for the determination of 
thermal diffusivity of soils and soil aggregates", International Journal 
of Thermophysics, [Online ed.], 2018, vol. 39, str. 1-13, ilustr., ISSN 
1572-9567, https://link.springer.com/article/10.1007/s10765-018-2401-4, 
DOI: 10.1007/s10765-018-2401-4. [COBISS.SI-ID 5166075]

[4] Chieu D. Tran, Franja Prosenc, Mladen Franko, "Facile synthesis, 
structure, biocompatibility and antimicrobial property of gold 
nanoparticle composites from cellulose and keratin", Journal of colloid 
and interface science, 2018, vol. 510, str. 237-245, ilustr., ISSN 
0021-9797, DOI: 10.1016/j.jcis.2017.09.006. [COBISS.SI-ID 4923131]

[5] Peter Rodič, Jozefina Katić, Dorota Korte, Paula M. Desimone, Mladen 
Franko, Silvia Ceré, Mirjana Metikoš-Huković, Ingrid Milošev, "The 
effect of cerium ions on the structure, porosity and electrochemical 
properties of Si/Zr-based hybrid sol-gel coatings deposited on 
aluminum", Metals, 2018, vol. 8, no. 4, str. 248-1-248-20, ISSN 
2075-4701, DOI: 10.3390/met8040248. [COBISS.SI-ID 31314471]

To see more, please visit 
http://www.ung.si/~vanesa/bibliografije/anglesko/okolje_ang.html
http://www.ung.si/en/research/laboratory-for-environmental-and-life-sciences/about/

Best regards,
Dr. Dragan D. MARKUSHEV

-- 
Dr. Dragan D. MARKUSHEV
Principal Research Fellow
Photonics Center
Head of Laboratory for Photoacoustics
Institute of Physics Belgrade
Pregrevica 118,
11080 Belgrade, SERBIA
cell: +381603169816
phone: +381113713158
fax: +381113162190
http://photonics.ipb.ac.rs/
http://www.ipb.ac.rs/