Mostafa A. El‐Sayed
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View article: A Scalable and Integrated Reconfigurable Intelligent Surface
A Scalable and Integrated Reconfigurable Intelligent Surface Open
A scalable reconfigurable intelligent surface (RIS) architecture with both centralized and distributed control capability is presented. The RIS is implemented using a one‐bit phase reconfigurable unit cell (UC) designed for X‐band operatio…
View article: Near-Infrared/pH Dual-Responsive Nanosponges Encapsulating Gold Nanorods for Synergistic Chemo-phototherapy of Lung Cancer
Near-Infrared/pH Dual-Responsive Nanosponges Encapsulating Gold Nanorods for Synergistic Chemo-phototherapy of Lung Cancer Open
Combined chemo-photothermal therapy (CT-PTT) based on gold nanorods (AuNRs) loaded with chemotherapies has been recently introduced as a promising anticancer therapy with relatively lower side effects and higher efficacy over individual th…
View article: Correction to “Structural Dynamics of (RGD)<sub>4</sub>PGC Peptides in Solvated and Au Nanorod Surface-Bound Forms Examined by Ultrafast 2D IR Spectroscopy”
Correction to “Structural Dynamics of (RGD)<sub>4</sub>PGC Peptides in Solvated and Au Nanorod Surface-Bound Forms Examined by Ultrafast 2D IR Spectroscopy” Open
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "Structural Dynamics of (RGD)4PGC Peptides in Solvated and Au Nanorod Surface-Bound Forms Examined by Ultrafast 2D IR Spectros…
View article: Spectroscopic diagnostics for bacteria in biologic sample
Spectroscopic diagnostics for bacteria in biologic sample Open
A method to analyze and diagnose specific bacteria in a biologic sample using spectroscopy is disclosed. The method includes obtaining the spectra of a biologic sample of a non-infected patient for use as a reference, subtracting the refer…
View article: Biological subtypes of breast cancer and their impact on recurrence and survival rates: Alexandria surgical oncology unit experience
Biological subtypes of breast cancer and their impact on recurrence and survival rates: Alexandria surgical oncology unit experience Open
ABSTRACT The effect of breast cancer molecular subtypes and treatment on survival, loco regional and distant recurrences were analyzed. Aiming to decrease the incidence of recurrence, continuous urgue exists about the optimal surgical deci…
View article: An Assessment Framework for PV Parallel MPPT Configuration with a New Utilization for UIPS Loads
An Assessment Framework for PV Parallel MPPT Configuration with a New Utilization for UIPS Loads Open
The prevalence rate of photovoltaics (PV)-based generation systems has increased by more than 15 folds in the last decade, putting it on the top compared to any other power generation system from the expandability point of view. A portion …
View article: Enhanced photothermal heating and combination therapy of NIR dye <i>via</i> conversion to self-assembled ionic nanomaterials
Enhanced photothermal heating and combination therapy of NIR dye <i>via</i> conversion to self-assembled ionic nanomaterials Open
In this study, self-assembled combination chemo-PTT nanomedicines are developed that display high synergystic toxicity towards breast cancer cells.
View article: Smart NIR-light and pH responsive doxorubicin-loaded GNRs@SBA-15-SH nanocomposite for chemo-photothermal therapy of cancer
Smart NIR-light and pH responsive doxorubicin-loaded GNRs@SBA-15-SH nanocomposite for chemo-photothermal therapy of cancer Open
We designed novel biocompatible nanocomposite composed of gold nanorods coated with rod-like mesoporous silica SBA-15-SH particles, (GNRs@SBA-15-SH) as a new synergistic therapeutic device to deliver heat and drug to cancer cells for tumor…
View article: Dynamic Hybrid Metasurfaces
Dynamic Hybrid Metasurfaces Open
Efficient hybrid plasmonic-photonic metasurfaces that simultaneously take advantage of the potential of both pure metallic and all-dielectric nanoantennas are identified as an emerging technology in flat optics. Nevertheless, postfabricati…
View article: Electrically driven programmable phase-change meta-switch reaching 80% efficiency
Electrically driven programmable phase-change meta-switch reaching 80% efficiency Open
Despite recent advances in active metaoptics, wide dynamic range combined with high-speed reconfigurable solutions is still elusive. Phase-change materials (PCMs) offer a compelling platform for metasurface optical elements, owing to the l…
View article: Functional Nanomaterials with Tunable Plasmonic and Emittive Properties (Final Project Report)
Functional Nanomaterials with Tunable Plasmonic and Emittive Properties (Final Project Report) Open
The goal of the project is on understanding the principles of non-covalent assembling of tunable functional materials with various nanocrystals in order to control light-matter interactions by changing localized interfacial refractive prop…
View article: Ambient Ammonia Electrosynthesis from Nitrogen and Water by Incorporating Palladium in Bimetallic Gold–Silver Nanocages
Ambient Ammonia Electrosynthesis from Nitrogen and Water by Incorporating Palladium in Bimetallic Gold–Silver Nanocages Open
Electrosynthesis of ammonia using nitrogen and water provides a potential alternative to the thermochemical process (Haber-Bosch) in a clean, sustainable, and decentralized way when electricity is generated from renewable sources. To enabl…
View article: Collective multipole oscillations direct the plasmonic coupling at the nanojunction interfaces
Collective multipole oscillations direct the plasmonic coupling at the nanojunction interfaces Open
Significance We present a systematic study of the effect of higher-multipolar order plasmon modes on the spectral response and plasmonic coupling of Ag nanoparticle dimers at nanojunction separation and introduce a coupling mechanism. It w…
View article: Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats
Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats Open
For localized tumors, gold nanorod (AuNR)-assisted plasmonic photothermal therapy (PPTT) is a potentially effective alternative to traditional surgery, in which AuNRs absorb near-infrared light and convert it to heat in order to kill cance…
View article: Supplementary Files: Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats
Supplementary Files: Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats Open
Supplementary Files: Gold Nanorod-Assisted Photothermal Therapy Decreases Bleeding during Breast Cancer Surgery in Dogs and Cats
View article: The Role of Oxidation of Silver in Bimetallic Gold-Silver Nanocages on Electrocatalytic Activity of Nitrogen Reduction Reaction
The Role of Oxidation of Silver in Bimetallic Gold-Silver Nanocages on Electrocatalytic Activity of Nitrogen Reduction Reaction Open
Electrochemical\nammonia synthesis from nitrogen and water provides\nan alternative route to the thermochemical process (Haber-Bosch) in\na clean, sustainable, and decentralized way if electricity is generated\nfrom renewable sources. We p…
View article: Monitoring the dynamics of hemeoxygenase-1 activation in head and neck cancer cells in real-time using plasmonically enhanced Raman spectroscopy
Monitoring the dynamics of hemeoxygenase-1 activation in head and neck cancer cells in real-time using plasmonically enhanced Raman spectroscopy Open
Real-time monitoring of the dynamics of pharmacologically generated HO-1 in mammalian cells by using plasmonically enhanced Raman spectroscopy (PERS).
View article: Gold Nanorod Photothermal Therapy Alters Cell Junctions and Actin Network in Inhibiting Cancer Cell Collective Migration
Gold Nanorod Photothermal Therapy Alters Cell Junctions and Actin Network in Inhibiting Cancer Cell Collective Migration Open
Most cancer-related deaths come from metastasis. It was recently discovered that nanoparticles could inhibit cancer cell migration. Whereas most researchers focus on single-cell migration, the effect of nanoparticle treatment on collective…
View article: Improved Modal Contribution Factors As Response Tracking Mechanisms For Dynamic Systems During Design Optimization
Improved Modal Contribution Factors As Response Tracking Mechanisms For Dynamic Systems During Design Optimization Open
As an industrial practice, complex structures are analyzed under a large set of dynamic operating conditions from which design load cases are selected. During design optimization, response tracking mechanisms based on modal participation f…
View article: Modal Participation Factors And Their Potential Applications In Aerospace: A Review
Modal Participation Factors And Their Potential Applications In Aerospace: A Review Open
In this paper we review different definitions of Modal Participation Factor (MPF) available in the literature and propose a simple classification and unified concept for their application with particular focus in aerospace engineering. A c…
View article: Targeting cancer cell integrins using gold nanorods in photothermal therapy inhibits migration through affecting cytoskeletal proteins
Targeting cancer cell integrins using gold nanorods in photothermal therapy inhibits migration through affecting cytoskeletal proteins Open
Significance Metastasis is the primary cause of cancer-related deaths. Current clinical treatments for antimetastasis, however, are not effective. This work aims to develop a strategy to inhibit cancer cell migration using gold nanorods (A…
View article: Efficacy, long-term toxicity, and mechanistic studies of gold nanorods photothermal therapy of cancer in xenograft mice
Efficacy, long-term toxicity, and mechanistic studies of gold nanorods photothermal therapy of cancer in xenograft mice Open
Significance This is a systematic in vivo study of gold nanorods (AuNRs)-assisted plasmonic photothermal therapy (AuNRs-PPTT) for cancer. We have optimized the properties of our AuNRs and the conditions of PPTT to achieve maximal induction…
View article: Ahmed Zewail: A force for Egyptian science
Ahmed Zewail: A force for Egyptian science Open
Undoubtedly, Dr. Ahmed Zewail, who passed away on August 2, 2016, had a strong, positive impact on science in the Middle East and in the West. I knew Zewail as one of his mentors and close friends. Zewail wanted to come from Egypt (Alexand…
View article: In Vivo Genotoxicity of Gold Nanorods in Mouse Bone Marrow Compared with Cyclophosphamide
In Vivo Genotoxicity of Gold Nanorods in Mouse Bone Marrow Compared with Cyclophosphamide Open
Gold nanorods (GNRs) are now under extensive investigation for biomedical applications. The in vivo genotoxic profile GNRs are not elucidated yet, therefore we investigated it in comparison with one of the most effective chemotherapeutic a…