A5084247897- Gold and Silver Nanoparticles Synthesis and Applications
- Nanoparticles: synthesis and applications
- Laser-Ablation Synthesis of Nanoparticles
- Nanoparticle-Based Drug Delivery
- Protein Interaction Studies and Fluorescence Analysis
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Luminescence Properties of Advanced Materials
- Medical Imaging Techniques and Applications
- Ultrasound and Cavitation Phenomena
- Nanoplatforms for cancer theranostics
- Iron oxide chemistry and applications
- Quantum Dots Synthesis And Properties
- Nanomaterials for catalytic reactions
- Characterization and Applications of Magnetic Nanoparticles
- Medical Imaging and Pathology Studies
- Electrohydrodynamics and Fluid Dynamics
- Anesthesia and Neurotoxicity Research
- Graphene research and applications
- COVID-19 impact on air quality
- Cardiac electrophysiology and arrhythmias
- Orbital Angular Momentum in Optics
- SARS-CoV-2 detection and testing
- Perovskite Materials and Applications
- Advancements in Semiconductor Devices and Circuit Design
University of California, San Francisco
2024
University of the Pacific
2022-2024
University of California System
2023-2024
Berry (United States)
2024
Amirkabir University of Technology
2020-2021
Universiti Sains Malaysia
2015-2020
A highly stable and magnetized citric acid (CA)-functionalized iron oxide aqueous colloidal solution (Fe3O4@CA) was synthesized by using a simple rapid method of one-step co-participation via chemical reaction between Fe3+ Fe2+ in NaOH at 65 °C, followed CA addition to functionalize the Fe3O4 surface 25 min. The NPs were lower temperatures shortened time compared with conventional methods. Surface functionalization is suggested because bare nanoparticles (Fe3O4 NPs) are frequently deficient...
The optical properties of a spherical gold nanoparticle have become our interest due to its remarkable characteristics when interacting with the light. In this work, dependence surface plasmon resonance on size nanosphere has been studied varying diameter from 20 100 nm. spectra single isolated nanoparticles are simulated by employing versatile MNPBEM toolbox. wavelength corresponding maximum extinction, absorption as well scattering redshifts (shift longer wavelengths) were observed...
Radiopharmaceutical therapy has demonstrated a high efficacy in the treatment of various tumor types. One radionuclides already used clinic is, beta emitter that also emits several photons imageable with SPECT. Quantitative imaging is critical for developing new radiopharmaceuticals. Energy resolution an important factor when multiple photon emissions. Solid-state detectors offer superior performance over scintillators, are commonly commercially-available preclinical SPECT scanners. This...
Abstract Iron oxide nanoparticles (Fe 3 O 4 NPs) possess unique physicochemical properties which make them great for biomedical applications. This study reports the development of gold (Au) coated Fe3O4 (Au-Fe3O4 photothermal therapy to eradicate breast cancer cells (MCF-7). The spherical shape monodisperse Au-Fe NPs with an average size 20.8 nm was confirmed by TEM. cell viability evaluation showed negligible toxicity toward MCF-7 after 24 h. Significant reduction observed (73.9%) following...
Abstract Silver nanoparticles (AgNPs) are widely utilized in biomedical and antibacterial fields. However, their use poses a risk danger of Ag + absorption into human tissue via skin penetration. This study focuses on the facile eco-friendly approach to synthesizing uniformly distributed spherically shaped phenol capped AgNPs using Agaricus bisporus. The synthesis process was monitored by UV–vis spectroscopy peak at 430 nm. Further characterizations were performed XRD, TEM. phenol-capped...
The plasmon resonance properties of gold nanoparticles (AuNPs) in liquid ionic medium with different concentration was investigated using a UV-visible/NIR spectrophotometer. optical absorption spectra AuNPs suspended NaCl solutions the range 400 – 800 nm were measured; specifically, 10 bare separately solution molar concentrations 0.01M and 1M resulted shapes widths peak. spectral resonances analyzed Mie theory, Lorenz-Drude size-dependent dielectric functions effective theory. Analysis...
<p><em>In this paper we present four simple analytical threshold voltage model for short- channel and length of saturation velocity region (LVSR) effect that takes into account the built – in potential source drain junction, surface electric field on double gate graphene nanoribbon transistors. Four established models potential, lateral field, LVSR are presented. These based easy solution two dimensional distribution Poisson equation which can be used to obtain voltage. give a...
The impact of environmental conditions (ionic strength and type electrolytes) on the damping surface plasmon resonance spectra silver nanoparticles (AgNPs) colloids suspensions were investigated. This study is structured for analyzing interaction three different sized (20, 50, 80 nm) nanoparticles, which electrostatically stabilized (sodium citrate) with non-adsorbent media (e.g. NaCl NaOH). absorption observed using a UV-visible / NIR spectrophotometer in range 300 – 1000 nm. Taking...
In this work, the plasmon resonance wavelength position for a single coated nanosphere was calculated using extended Mie theory. Previous studies have shown that shift of nanoshell scaled by solid nanospheres decreased as function shell thickness core radius. However, thinner shows steeper red than thicker ones. attention is focused on size effects wavelength. The aim work to study behavior silica – gold different and radii simulations including Lorentz Drude depended dielectric without...
Potassium-selective, voltage-gated channels of the KV7 family are critical regulators electrical excitability in many cell types. Removing outermost putative sensing charge (R198) human KV7.2 shifts its activation voltage dependence toward more negative potentials. This suggests that removing a “at top” fourth (S4) segment voltage-sensing domain facilitates activation. Here, we hypothesized restoring would bring back to normal range. We introduced mutation R198H with idea titrating histidine...