A5051304802- Carbon and Quantum Dots Applications
- Graphene and Nanomaterials Applications
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Gas Sensing Nanomaterials and Sensors
- Multiferroics and related materials
- Nanocluster Synthesis and Applications
- Semiconductor Quantum Structures and Devices
- Magnetic and transport properties of perovskites and related materials
- Advanced Nanomaterials in Catalysis
- Synthesis and Characterization of Heterocyclic Compounds
- Advanced Semiconductor Detectors and Materials
- Characterization and Applications of Magnetic Nanoparticles
- Magnetic Properties and Synthesis of Ferrites
- Nanoparticle-Based Drug Delivery
- Metal complexes synthesis and properties
- Advanced Condensed Matter Physics
- Lanthanide and Transition Metal Complexes
- Analytical Chemistry and Chromatography
- Iron oxide chemistry and applications
- Nanoplatforms for cancer theranostics
- Magnetic properties of thin films
- Advanced Photocatalysis Techniques
- Synthesis and biological activity
University of Belgrade
2016-2025
Vinča Institute of Nuclear Sciences
2004-2023
Jožef Stefan Institute
1971-2023
Institute of Economic Sciences
2007-2023
Institute of Molecular Genetics and Genetic Engineering
2023
University of Veterinary Medicine Vienna
2023
Institute of Nuclear Physics
2013-2016
Vienna Institute for Nature Conservation & Analyses
2002
National Institute of Chemistry
1997
Elektro Ljubljana (Slovenia)
1983
Inimitable properties of carbon quantum dots as well a cheap production contribute to their possible application in biomedicine especially antibacterial and antibiofouling coatings. Fluorescent hydrophobic are synthesized by bottom-up condensation method used for deposition uniform homogeneous Langmuir–Blodgett thin films on different substrates. It is found that this kind generates singlet oxygen under blue light irradiation. Antibacterial testing four bacteria strains (Escherichia coli,...
Herein, the ability of gamma irradiation to enhance photoluminescence properties graphene quantum dots (GQDs) was investigated. Different doses γ-irradiation were used on GQDs examine way in which their structure and optical can be affected. The yield increased six times for irradiated with high compared nonirradiated material. Both lifetime values band gap dose applied irradiation. In addition, exploitation gamma-irradiated as photosensitizers examined by monitoring production singlet...
The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, chloride, urea, citric acid as starting precursors. Microscopy analysis reveals that average size these is 5 ± 2 nm, whereas chemical study shows existence C–F C–Cl bonds. produced F- Cl-doped have fluorescence yields 0.151 0.284, respectively, at an...
Due to controversial reports concerning antibacterial activity of different graphene based materials it is very important investigate their action on a wide range Gram-positive and Gram-negative bacteria. In this paper we have investigated the structure induced phototoxic four types materials: oxide (GO), quantum dots (GQDs), carbon (CQDs) nitrogen doped (N-CQDs). Antibacterial was tested 19 It found that nanometer-size CQDs N-CQDs are most potent agents whereas micrometer-size GO has poor...
The cost of treatment antibiotic-resistant pathogens is on the level tens billions dollars at moment. It special interest to reduce or solve this problem using antimicrobial coatings, especially in hospitals other healthcare facilities. bacteria can transfer from medical staff contaminated surfaces patients. In paper, we focused our attention antibacterial and antibiofouling activities two types photodynamic polyurethane composite films doped with carbon polymerized dots (CPDs) fullerene...
Abstract Luminescence of monoclinic lithium metatitanate (Li 2 TiO 3 ) powders activated with different quantities Mn 4+ is studied in detail. Its strong deep‐red emission arising from the E g → 4 A 2g spin forbidden transition centered at around 688 nm and suitable for luminescence thermometry. Structural electron paramagnetic resonance analyses show that ions are equally distributed two almost identical Ti sites which they octahedrally coordinated by six oxygen ions. Calculations based on...
Nowadays, bacteria resistance to many antibiotics is a huge problem, especially in clinics and other parts of the healthcare system. This critical health issue requires dynamic approach produce new types antibacterial coatings combat various pathogen microbes. In this research, we prepared type carbon quantum dots based on phloroglucinol using bottom-up method. Polyurethane composite films were produced swell–encapsulation–shrink Detailed electrostatic force viscoelastic microscopy revealed...
Development of new types antimicrobial coatings is utmost importance due to increasing problems with pathogen transmission from various infectious surfaces human beings. In this study, highly potent polyurethane composite films encapsulated by hydrophobic riboflavin-based carbon polymer dots are presented. Detailed structural, optical, antimicrobial, and cytotoxic investigations these composites were conducted. Low-power blue light triggered the eradicate Escherichia coli in 30 min, whereas...
In this study, nanochitosan dots (ChiDs) were synthesized using gamma rays and encapsulated in bacterial cellulose (BC) polymer matrix for antibiofilm potential photodynamic therapy. The composites analyzed structural changes SEM, AFM, FTIR, XRD, EPR, porosity measurements. Additionally, ChiD release was assessed. results showed that the chemical composition remained unaltered, but agglomerates embedded BC changed shape (1.5–2.5 µm). Bacterial fibers became deformed interconnected, with...
A novel bacterial cellulose (BC)-based composite hydrogel with graphene quantum dots (BC-GQDs) was developed for photodynamic therapy using blue and green light (BC-GQD_blue BC-GQD_green) to target pathogenic biofilms. This approach aims address complications in treating nosocomial infections combating multi-drug-resistant organisms. Short-term illumination (30 min) of both BC-GQD samples led singlet oxygen production a reduction Significant antibiofilm activity (>50% reduction) achieved...
In this paper, bismuth ferrite (BFO) particles synthesized by controlled hydrothermal process, where the of small sizes and with high purity were obtained. Structural analysis showed that non-annealed powder can be perfectly fitted to rhombohedral space group R3c contains a very amount secondary phase, whereas final product (annealed at 800?C) represents single-phase perovskite crystallinity. HRTEM confirmed existence twin stacking faults, which are responsible for enhanced magnetic...
Structural and optical characteristics of manganese doped cadmium sulfide nanoparticles prepared by <italic>in situ</italic> chemical synthesis using biocompatible Na-alginate biopolymer as a template is reported.
Carbon quantum dots as a novel type of carbon nanomaterials have attracted the attention many researchers because their unique optical, antibacterial, and anticancer properties well biocompatibility. In this study, for first time, were prepared from o -phenylenediamine dissolved in toluene by solvothermal route. Subsequently, encapsulated into polyurethane films swelling–encapsulation–shrink method. Analyses results obtained different characterization methods (AFM, TEM, EDS, FTIR,...
Antibacterial curcumin/graphene nanomesh hybrids are synthesized and tested.
We present a study of magnetic and structural properties CoFe 2 O 4 nanoparticles suspended in an organic liquid. Transmission electron microscopy shows that the have narrow size distribution average particle 5.9 ± 1.0 nm. X‐ray diffraction particles are cubic spinel crystal structure. Dynamic light scattering measurements reveal existence shell around with hydrodynamic diameter 14.4 Coercive field at T = 5 K is found to be 11.8 kOe. Disappearance coercive remanent magnetization about 170...