A5067837973- Microfluidic and Bio-sensing Technologies
- 3D Printing in Biomedical Research
- Advanced biosensing and bioanalysis techniques
- Nanowire Synthesis and Applications
- Neuroscience and Neural Engineering
- Cancer Cells and Metastasis
- Carbon Nanotubes in Composites
- Analytical Chemistry and Sensors
- Microfluidic and Capillary Electrophoresis Applications
- Molecular Communication and Nanonetworks
- Electrical and Bioimpedance Tomography
- Cellular Mechanics and Interactions
- Microbial Inactivation Methods
- Ultrasound and Hyperthermia Applications
- Graphene and Nanomaterials Applications
- Photoacoustic and Ultrasonic Imaging
- Nanopore and Nanochannel Transport Studies
- Electrochemical Analysis and Applications
- Ultrasound and Cavitation Phenomena
- Advanced Sensor and Energy Harvesting Materials
- Wound Healing and Treatments
- Silicon Nanostructures and Photoluminescence
- Nanoparticle-Based Drug Delivery
- Breast Cancer Treatment Studies
- Nanofabrication and Lithography Techniques
University of Tehran
2015-2024
Imam Khomeini Hospital
2021-2024
Tehran University of Medical Sciences
2021-2024
Motamed Cancer Institute
2024
Academic Center for Education, Culture and Research
2024
Shahid Beheshti University of Medical Sciences
2022
Sharif University of Technology
2008-2010
TiO2 nanoparticles were physically attached to chemically synthesized single-layer graphene oxide nanosheets deposited between Au electrodes in order investigate the electrical, chemical, and structural properties of TiO2/graphene composition exposed UV irradiation. X-ray photoelectron spectroscopy showed that after effective photocatalytic reduction sheets by ethanol, carbon content reduced oxides gradually decreased increasing irradiation time, while no considerable variation was detected...
The hard corona, the protein shell that is strongly attached to surface of nano-objects in biological fluids, recognized as first layer interacts with objects (e.g., cells and tissues). decoration corona (i.e., type, amount, conformation proteins) can define fate nanomaterial. Recent developments have revealed depends on type disease human patients from which plasma obtained a source for formation (referred 'personalized corona'). In this study, we demonstrate graphene oxide (GO) sheets...
Vertically aligned multi-wall carbon nanotube (CNT) arrays were fabricated in tip-growth mode on Ni/Si substrates using plasma enhanced chemical vapor deposition. In a purification process including hydrogenation and acid washing of the Ni/CNTs, oxygen-containing functional groups substantially reduced wide hollow core at tip CNTs was formed by removing Ni seeds. Sol–gel silver nanoparticles deposited surface unpurified while they could also be embedded within Ni-removed CNTs. The...
A novel vertically aligned carbon nanotube based electrical cell impedance sensing biosensor (CNT-ECIS) was demonstrated for the first time as a more rapid, sensitive and specific device detection of cancer cells. This is on fast entrapment cells arrays leads to mechanical interactions between CNT tips entrapped membranes, changing biosensor. CNT-ECIS fabricated through photolithography process Ni/SiO2/Si layers. Carbon have been grown 9 nm thick patterned Ni microelectrodes by DC-PECVD....
Bioinspired materials can mimic the stem cell environment and modulate differentiation proliferation. In this study, biomimetic micro/nanoenvironments were fabricated by cell-imprinted substrates based on mature human keratinocyte morphological templates. The data obtained from atomic force microscopy field emission scanning electron revealed that keratinocyte-cell-imprinted poly(dimethylsiloxane) casting procedure could imitate surface morphology of plasma membrane, ranging nanoscale to...
Production of local microbubbles (MBs) with dense distribution in tumor environment is achieved by developing an integrated electrochemical stimulator on a microfabricated silicon needle covered zinc-oxide nanowires (ZnONWs). MBs are then exploded external ultrasonic actuation, which induce microcavitations cells followed direct entrance anticancer drugs into cancer cells. This system, named ZnO nanowire-based microbubble generator probe (ZnONW-MGP), tested tumorized mice models (by MC4L2...
An integrated nano-electromechanical chip (NELMEC) has been developed for the label-free distinguishing of both epithelial and mesenchymal circulating tumor cells (ECTCs MCTCs, respectively) from white blood (WBCs). This nanoelectronic microfluidic fabricated by silicon micromachining can trap large single (>12 µm) at opening analysis microchannel arrays. The nature captured is detected using nanograss (SiNG) electrodes patterned entrance channels. There an observable difference between...
Silver nanoparticles (NPs) stored in pore-arrays (pa) SU-8 photoresist layer were utilized as an antibacterial nanocomposition against E. coli bacteria. The pa-SU-8 matrix was fabricated by optical interference lithography method resulting small pores with a diameter of ∼50 nm and depth ∼100 nm. Ag NPs deposited on the soft polymeric at different drying temperatures 50 90 °C. X-ray photoelectron spectroscopy showed that silver substantially metallic state, independent from condition....
We report the growth of vertically aligned high-crystallinity silicon nanotube (SiNT) arrays on substrate by means a Ni-Au bilayer catalyst engineering technique. Nanotubes were synthesized through solid-liquid-solid method as well vapor-liquid-solid. A precise evaluation utilizing atomic force microscopy and lateral describes that gold profile in Ni regions leads to construction multiwall SiNTs. The agreement structural geometry stiffness obtained SiNTs with previous theoretical predictions...