A5057058091- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Plasmonic and Surface Plasmon Research
- Nanomaterials for catalytic reactions
- Biosensors and Analytical Detection
- Electrochemical Analysis and Applications
- Copper-based nanomaterials and applications
- Nanomaterials and Printing Technologies
- Optical Coatings and Gratings
- Analytical Chemistry and Sensors
- Electrochemical sensors and biosensors
- nanoparticles nucleation surface interactions
- Advanced Photocatalysis Techniques
- Nanoparticles: synthesis and applications
- Photodynamic Therapy Research Studies
- Nanowire Synthesis and Applications
- Extraction and Separation Processes
- Radioactive element chemistry and processing
- Calcium Carbonate Crystallization and Inhibition
- Advanced Biosensing Techniques and Applications
- Nanoplatforms for cancer theranostics
- Corrosion Behavior and Inhibition
- Molecular Sensors and Ion Detection
- Advanced ceramic materials synthesis
- Photoacoustic and Ultrasonic Imaging
Amirkabir University of Technology
2014-2023
École Polytechnique Fédérale de Lausanne
2019-2022
Sharif University of Technology
2021-2022
Materials and Energy Research Center
2013-2016
A comprehensive review on the ability of finite difference time domain (FDTD), element method (FEM), discrete dipole approximation (DDA), and boundary (BEM) for simulating optical properties plasmonic nanostructures.
In the laboratory experiment described here, students synthesize silver nanostructures (AgNS) with different shapes and sizes to elucidate shape- size-dependent optical properties of nanostructured materials. Students also develop understanding some thermodynamic kinetic aspects synthesis process through this experiment. size-controlled spherical triangular nanostructures, can observe conspicuous color change colloidal AgNS systems. addition, these materials be analyzed qualitatively...
Single-walled carbon nanotubes (SWCNTs) emit near-infrared (NIR) fluorescence that is ideal for optical sensing. However, the low quantum yields diminish sensor's signal-to-noise ratio and limits penetration depths in vivo measurements. In this study, we perform a systematic investigation of plasmonic effects Ag Au nanoparticles various geometries to tune even enhance intensity single-stranded DNA-wrapped SWCNTs (ssDNA-SWCNTs). We observe chirality-dependent NIR enhancement varies with both...
In this work, a rapid and simple colorimetric method based on the surface plasmon resonance of silver nanoparticles (AgNPs) was developed for detection drug Timolol. The used is interaction Timolol with as-synthesized AgNPs, which promotes aggregation nanoparticles. This exploits through electric dipole-dipole coupling among agglomerated particles, hence bringing forth distinctive changes in spectra as well color colloidal silver. UV-vis spectrophotometery to monitor localized AgNPs at...
In this study, we could successfully tune the band gap of silver nanotriangles in range 1.2–2.8 eV; tunable was achieved by controlling edge length 10–100 nm during a facile synthesis process. To authors' best knowledge, is first report such size-controlled process nanostructured materials for light harvesting purposes. The results finite element analysis also confirmed that out–plane quadrupole resonance triangular nanostructures can enhance electromagnetic field up to 20 times higher than...
In this work, the interaction between agitation rate and oxidative etching on growth mechanisms of silver nanowires during polyol process, most conventional applied method for metallic nanoparticles synthesis, is evaluated. It was found that main reason formation multidiameter (MDNWs) local accumulation ions in system, i.e. even at a low concentration (94 mM) under mild conditions, MDNWs were producible. Moreover, it inferred more stress (stemming from high agitation) initially formed...
In this work, a new modification was made on the Finke-Watzky mechanism for investigating nucleation and growth steps in synthesis of silver nanoparticles (AgNPs). UV-vis spectrophotometry transmission electron microscopy evaluations proved that former linear form is not efficient describing AgNPs synthesis. manner, modified by considering reversible pseudo first-order reaction step. addition, no assumptions were mathematical calculations related to rate law which previously adapted...