TY  - JOUR
AU  - Pergal, Marija V.
AU  - Brkljačić, Jelena
AU  - Tovilović-Kovačević, Gordana
AU  - Špírkova, Milena
AU  - Kodranov, Igor D.
AU  - Manojlović, Dragan D.
AU  - Ostojić, Sanja
AU  - Knežević, Nikola Ž.
PY  - 2021
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4161
AB  - Novel polyurethane nanocomposite (PUN) materials containing different surface-functionalized mesoporous silica nanoparticles (MSNs) were prepared by in situ polymerization methodology. Polyurethane network was formed from poly (dimethylsiloxane)-based macrodiol (PDMS), 4, 4′ -methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20; used as crosslinking agent). PU and PU/MSN nanocomposites contained equal ratios of soft PDMS and hard MDI-BH-20 segments. Non-functionalized and surface-functionalized (with 3-(trihydroxysilyl) propyl methylphosphonate (FOMSN) and 2-[methoxy (polyethyleneoxy) 6-9propyl] trimethoxysilane (PEGMSN)) MSNs were used as the nanofillers at a concentration of 1 wt%. Prepared materials were characterized by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analyses (DMTA), nanoindentation, equilibrium swelling and water absorption measurements. Characteristics of the prepared PUNs when in contact with a biological environment were assessed through testing their biocompatibility, protein adsorption and adhesion of endothelial cells. The favourable influence of MSNs on the physico-chemical and biological characteristics of these novel PUN materials was identified, which evidences their vast applicability potential as coatings for medical devices and implants.
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites
VL  - 151
DO  - 10.1016/j.porgcoat.2020.106049
SP  - 106049
ER  - 

@article{
author = "Pergal, Marija V. and Brkljačić, Jelena and Tovilović-Kovačević, Gordana and Špírkova, Milena and Kodranov, Igor D. and Manojlović, Dragan D. and Ostojić, Sanja and Knežević, Nikola Ž.",
year = "2021",
abstract = "Novel polyurethane nanocomposite (PUN) materials containing different surface-functionalized mesoporous silica nanoparticles (MSNs) were prepared by in situ polymerization methodology. Polyurethane network was formed from poly (dimethylsiloxane)-based macrodiol (PDMS), 4, 4′ -methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20; used as crosslinking agent). PU and PU/MSN nanocomposites contained equal ratios of soft PDMS and hard MDI-BH-20 segments. Non-functionalized and surface-functionalized (with 3-(trihydroxysilyl) propyl methylphosphonate (FOMSN) and 2-[methoxy (polyethyleneoxy) 6-9propyl] trimethoxysilane (PEGMSN)) MSNs were used as the nanofillers at a concentration of 1 wt%. Prepared materials were characterized by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analyses (DMTA), nanoindentation, equilibrium swelling and water absorption measurements. Characteristics of the prepared PUNs when in contact with a biological environment were assessed through testing their biocompatibility, protein adsorption and adhesion of endothelial cells. The favourable influence of MSNs on the physico-chemical and biological characteristics of these novel PUN materials was identified, which evidences their vast applicability potential as coatings for medical devices and implants.",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites",
volume = "151",
doi = "10.1016/j.porgcoat.2020.106049",
pages = "106049"
}

Pergal, M. V., Brkljačić, J., Tovilović-Kovačević, G., Špírkova, M., Kodranov, I. D., Manojlović, D. D., Ostojić, S.,& Knežević, N. Ž.. (2021). Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites. in Progress in Organic Coatings
Elsevier., 151, 106049.
https://doi.org/10.1016/j.porgcoat.2020.106049

Pergal MV, Brkljačić J, Tovilović-Kovačević G, Špírkova M, Kodranov ID, Manojlović DD, Ostojić S, Knežević NŽ. Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites. in Progress in Organic Coatings. 2021;151:106049.
doi:10.1016/j.porgcoat.2020.106049 .

Pergal, Marija V., Brkljačić, Jelena, Tovilović-Kovačević, Gordana, Špírkova, Milena, Kodranov, Igor D., Manojlović, Dragan D., Ostojić, Sanja, Knežević, Nikola Ž., "Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites" in Progress in Organic Coatings, 151 (2021):106049,
https://doi.org/10.1016/j.porgcoat.2020.106049 . .

TY  - JOUR
AU  - Pergal, Marija V.
AU  - Kodranov, Igor D.
AU  - Pergal, Miodrag M.
AU  - Gašić, Uroš
AU  - Stanković, Dalibor M.
AU  - Petković, Branka B.
AU  - Manojlović, Dragan D.
PY  - 2020
UR  - https://doi.org/10.1007/s11270-020-04800-x
UR  - https://radar.ibiss.bg.ac.rs/123456789/3852
AB  - The aim of this study was to investigate, analyze, and compare applied techniques suitable for achieving efficient removal of organophosphorus pesticides (OPPs) (malathion and fenitrothion) from aqueous solutions and analyze the degradation products and processes. Pesticide degradation efficiency (%) was monitored by high-performance liquid chromatography (HPLC) equipped with a photodiode array detector (DAD), while mineralization degree was determined by total organic carbon analysis (TOC). Daphnia magna was used for screening the environmental safety aspects of the degradation methods, i.e., for assessing the toxicity of solutions obtained after degradation. Additionally, a surface river water was utilized to examine the likely influence of organic matter on the pesticides’ degradation. Pesticide degradation products were identified using gas chromatography with a triple quadrupole mass detector (GC-MS/MS) as well as ultrahigh-performance liquid chromatography coupled with a linear ion trap, Orbitrap mass spectrometer (UHPLC-LTQ Orbitrap MS), and a simple pesticide degradation mechanism is proposed. Removal of pesticides from water using chlorine dioxide was successful, resulting in high degradation efficiency (98% for malathion and 81% for fenitrothion). Partial mineralization was achieved, and Daphnia magna mortality decreased in the waters containing degradation products (compared with the parent pesticides), indicating that the solutions formed were less toxic than the parent pesticides. Lower degradation rates (80% for malathion and 72% for fenitrothion) in Sava River water were measured, indicating the influence of the organic matter contained in this naturally occurring surface water. The results prove that chlorine dioxide could be used as an agent for successful removal of these OPPs from water.
PB  - Springer
T2  - Water, Air, and Soil Pollution
T1  - Degradation Products, Mineralization, and Toxicity Assessment of Pesticides Malathion and Fenitrothion
IS  - 8
VL  - 231
DO  - 10.1007/s11270-020-04800-x
SP  - 433
ER  - 

@article{
author = "Pergal, Marija V. and Kodranov, Igor D. and Pergal, Miodrag M. and Gašić, Uroš and Stanković, Dalibor M. and Petković, Branka B. and Manojlović, Dragan D.",
year = "2020",
abstract = "The aim of this study was to investigate, analyze, and compare applied techniques suitable for achieving efficient removal of organophosphorus pesticides (OPPs) (malathion and fenitrothion) from aqueous solutions and analyze the degradation products and processes. Pesticide degradation efficiency (%) was monitored by high-performance liquid chromatography (HPLC) equipped with a photodiode array detector (DAD), while mineralization degree was determined by total organic carbon analysis (TOC). Daphnia magna was used for screening the environmental safety aspects of the degradation methods, i.e., for assessing the toxicity of solutions obtained after degradation. Additionally, a surface river water was utilized to examine the likely influence of organic matter on the pesticides’ degradation. Pesticide degradation products were identified using gas chromatography with a triple quadrupole mass detector (GC-MS/MS) as well as ultrahigh-performance liquid chromatography coupled with a linear ion trap, Orbitrap mass spectrometer (UHPLC-LTQ Orbitrap MS), and a simple pesticide degradation mechanism is proposed. Removal of pesticides from water using chlorine dioxide was successful, resulting in high degradation efficiency (98% for malathion and 81% for fenitrothion). Partial mineralization was achieved, and Daphnia magna mortality decreased in the waters containing degradation products (compared with the parent pesticides), indicating that the solutions formed were less toxic than the parent pesticides. Lower degradation rates (80% for malathion and 72% for fenitrothion) in Sava River water were measured, indicating the influence of the organic matter contained in this naturally occurring surface water. The results prove that chlorine dioxide could be used as an agent for successful removal of these OPPs from water.",
publisher = "Springer",
journal = "Water, Air, and Soil Pollution",
title = "Degradation Products, Mineralization, and Toxicity Assessment of Pesticides Malathion and Fenitrothion",
number = "8",
volume = "231",
doi = "10.1007/s11270-020-04800-x",
pages = "433"
}

Pergal, M. V., Kodranov, I. D., Pergal, M. M., Gašić, U., Stanković, D. M., Petković, B. B.,& Manojlović, D. D.. (2020). Degradation Products, Mineralization, and Toxicity Assessment of Pesticides Malathion and Fenitrothion. in Water, Air, and Soil Pollution
Springer., 231(8), 433.
https://doi.org/10.1007/s11270-020-04800-x

Pergal MV, Kodranov ID, Pergal MM, Gašić U, Stanković DM, Petković BB, Manojlović DD. Degradation Products, Mineralization, and Toxicity Assessment of Pesticides Malathion and Fenitrothion. in Water, Air, and Soil Pollution. 2020;231(8):433.
doi:10.1007/s11270-020-04800-x .

Pergal, Marija V., Kodranov, Igor D., Pergal, Miodrag M., Gašić, Uroš, Stanković, Dalibor M., Petković, Branka B., Manojlović, Dragan D., "Degradation Products, Mineralization, and Toxicity Assessment of Pesticides Malathion and Fenitrothion" in Water, Air, and Soil Pollution, 231, no. 8 (2020):433,
https://doi.org/10.1007/s11270-020-04800-x . .