Author
Maged El-Kemary
Other affiliations: Pharos University in Alexandria, Tohoku University, Tanta University ...read more
Bio: Maged El-Kemary is an academic researcher from Kafrelsheikh University. The author has contributed to research in topics: Quenching (fluorescence) & Materials science. The author has an hindex of 26, co-authored 118 publications receiving 2567 citations. Previous affiliations of Maged El-Kemary include Pharos University in Alexandria & Tohoku University.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the interaction between NiO nanoparticles and glucose has been studied using UV-vis absorption and fluorescence spectroscopy, and the zeta-potential of NiO nano-articles was used to gain insight about the interaction mode.
458 citations
TL;DR: In this article, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and UV-visible absorption spectroscopy were used to characterize the surface properties of the prepared CuO nanoparticles.
297 citations
TL;DR: In this article, the photocatalytic activity of the prepared ZnO nanoparticles has been investigated for the degradation of ciprofloxacin drug under UV light irradiation in aqueous solutions of different pH values.
211 citations
TL;DR: An updated overview of micelles development and their application for cancer therapy will be discussed.
Abstract: Micelles as colloidal suspension have attracted considerable attention due to their potential use for both cancer diagnosis and therapy. These structures have proven their ability to deliver poorly water-soluble anticancer drugs, improve drug stability, and have good penetration and site-specificity, leading to enhance therapeutic efficacy. Micelles are composed of hydrophobic and hydrophilic components assembled into nanosized spherical, ellipsoid, cylindrical, or unilamellar structures. For their simple formation, they are widely studied, either by using opposite polymers attachment consisting of two or more block copolymers, or by using fatty acid molecules that can modify themselves in a rounded shape. Recently, hybrid and responsive stimuli nanomicelles are formed either by integration with metal nanoparticles such as silver, gold, iron oxide nanoparticles inside micelles or by a combination of lipids and polymers into single composite. Herein, through this special issue, an updated overview of micelles development and their application for cancer therapy will be discussed.
170 citations
TL;DR: In this article, a plasmonic fiber was designed as an efficient visible-light photocatalyst for the breakdown of organic and inorganic pollutants, including methylene blue, carbofuran, and metronidazole.
117 citations
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TL;DR: Fluorescent Dyes and Their Supramolecular Host/Guest Complexes with Macrocycles in Aqueous Solution and how these complexes interact with each other and with solvent-free substrates is studied.
Abstract: Fluorescent Dyes and Their Supramolecular Host/Guest Complexes with Macrocycles in Aqueous Solution Roy N. Dsouza, Uwe Pischel,* and Werner M. Nau* School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany Centro de Investigaci on en Química Sostenible (CIQSO) and Departamento de Ingeniería Química, Química Física y Química Org anica, Universidad de Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
897 citations
TL;DR: This review illustrates the efforts in the search of alternative photocatalysts that are not based on TiO(2), with some exceptions concerning particularly innovative modifications as nanoassembled TiO-based composites with active carbon, graphite and fullerene.
826 citations
TL;DR: In this paper, the performances of traditional technologies and nanotechnology for water treatment and environmental remediation were compared with the goal of providing an up-to-date reference on the state of treatment techniques for researchers, industry, and policy makers.
582 citations
TL;DR: In this article, the dependence of photoinduced electron transfer reaction rates on the molecular structures of the donor and acceptor entities results in improving the capture and storage of solar energy, and the relation between structures and photochemical reactivities of these novel supramolecular systems are discussed in relation to the efficiency of charge separation and charge recombination.
Abstract: The attainment of a better understanding of the dependence of photoinduced electron transfer reaction rates on the molecular structures of the donor and acceptor entities results in improving the capture and storage of solar energy. Here, the intermolecular and supramolecular electron transfer processes from electron donors (porphyrins (P), chlorophylls (Chl), phthalocyanines (Pc) and naphthalocyanines (Nc)) and their metal derivatives to electron acceptors (fullerenes such as C 60 and C 70 ) studied by nanosecond and picosecond laser flash photolysis techniques in polar and nonpolar solvents are reviewed. For intermolecular systems in polar solvents, photoinduced electron transfer takes place via the excited triplet states of C 60 /C 70 or via the excited triplet states of P/Pc/Nc, yielding solvated radical ions in polar solvents; thus, the back electron transfer rates are generally slow. In the case of the supramolecular dyads and triads formed by axial coordination, hydrogen bonding, crown ether complexation, or rotaxane formation, the photoinduced charge separation takes place mainly from the excited singlet state of the donor; however, the back electron transfer rates are generally quite fast. The relations between structures and photochemical reactivities of these novel supramolecular systems are discussed in relation to the efficiency of charge separation and charge recombination.
494 citations