A5014476709- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Semiconductor Quantum Structures and Devices
- Nonlinear Optical Materials Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Bioactive Compounds and Antitumor Agents
- Cancer therapeutics and mechanisms
- Laser-Ablation Synthesis of Nanoparticles
- Spectroscopy and Chemometric Analyses
- Synthesis and biological activity
- Photoacoustic and Ultrasonic Imaging
- Photonic Crystals and Applications
- Near-Field Optical Microscopy
Ghent University
2022-2025
University of Warsaw
2023
Ghent University Hospital
2022
A novel series of N-acylated ciprofloxacin (CP) conjugates 1-21 were synthesized and screened as potential antimicrobial agents. Conjugates 1 2 1.25-10-fold more potent than CP toward all Staphylococci (minimal inhibitory concentration 0.05-0.4 μg/mL). Most the chloro- (3-7), bromo- (8-11), CF3-alkanoyl (14-16) derivatives expressed higher or comparable activity to against selected Gram-positive strains. few analogues (5, 10, 11) also effective chosen clinical Gram-negative rods. 5, 11...
The controlled placement of colloidal semiconductor nanocrystals (NCs) onto planar surfaces is crucial for scalable fabrication single-photon emitters on-chip, which are critical elements optical quantum computing, communication, and encryption. positioning NCs such as metal chalcogenides or perovskites still challenging, it requires a nonaggressive process to preserve the properties NCs. In this work, periodic arrays 2500 nanoholes patterned by electron beam lithography in poly(methyl...
An improved small-circle scanning fluorescence correlation spectroscopy (sFCS) technique is introduced by combining acousto-optical laser with fitting the autocorrelation function in frequency domain. The validated using both simulation and experimental data on various fluorescent nanoparticles, including polystyrene beads, CdSe/CdS quantum dots, lipid nanoparticles. Then, sFCS method used to investigate adsorption of in-house synthesized poly(2-guanidinoethyl methacrylate) (PGUMA) polymers...
Single photon purity of an individual quantum dot is severely compromised by biexciton emission. Giant shell dots are allowing for spectral separation with a long-pass filter improving single at room temperature.
Several established procedures are now available to prepare zinc blende CdSe nanoplatelets. While these protocols allow for detailed control over both thickness and lateral dimensions, the chemistry behind their formation is yet be unraveled. In this work, we discuss influence of solvent on synthesis We confirmed that presence double bonds, as case 1-octadecene, plays a key role in evolution nanoplatelets, through isomerization alkene, by nuclear magnetic resonance spectroscopy mass...
Giant shell CdSe/CdS quantum dots are bright and flexible emitters, with near-unity yield suppressed blinking, but their single photon purity is reduced by efficient multiexcitonic emission. We report the observation, at dot level, of a large blueshift photoluminescence biexciton spectrum ($24\pm5$ nm over sample 32 dots) for pure-phase wurtzite dots. By spectral filtering, we demonstrate 2.3 times reduction relative to exciton emission, while preserving as much 60% thus improving from...