Browsing Chemistry (Scholarly Publications) by Title
Now showing items 70-89 of 875
-
Catechol oxidase activity of comparable dimanganese and dicopper complexes
(2018)Synthetic CuII2 complexes have been widely investigated as model systems for catechol oxidase enzymes. The catechol oxidase reactivity of MnII2 complexes has been less explored, and the effect of metal substitution in ... -
Cation-π interactions: complexes of Guanidinium and simple aromatic systems
(2011)We have theoretically studied, in gas phase and using PCM-water solvation, the complexes established by the biologically relevant guanidinium cation and simple aromatic systems (benzene, naphthalene and pyridine). In gas ... -
Cell death in photodynamic therapy: From oxidative stress to anti-tumor immunity
(2019)Photodynamic therapy is a promising approach for cancer treatment that relies on the administration of a photosensitizer followed by tumor illumination. The generated oxidative stress may activate multiple mechanism of ... -
Cell Proliferation Tracking Using Graphene Sensor Arrays
(2012)The development of a novel label-free graphene sensor array is presented. Detection is based on modification of graphene FET devices and specifically monitoring the change in composition of the nutritive components in ... -
CeO2 catalysed conversion of CO, NO2 and NO from first principles energetics
(2006)First principles calculations using density functional theory with corrections for on-site Coulomb interactions (DFT + U) are presented in which we compute the energy for the conversion of CO to CO2, NO2 to NO and NO to ... -
Ceria co-doping: Synergistic or average effect?
(2014)Ceria (CeO2) co-doping has been suggested as a means to achieve ionic conductivities that are significantly higher than those in singly doped systems. Rekindled interest in this topic over the last decade has given rise ... -
Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
(2018)The aim of this study is to investigate the possibility of using cerium oxide (CeO2) nanoparticles (NPs) attached to reduced graphene oxide (rGO) as an alternative adsorbent for cadmium (II), lead (II) and chromium (VI) ... -
Chapter 9: Porphyrinoids for Photodynamic Therapy
(2021)This chapter gives an overview of porphyrinoids for use in photodynamic therapy. It covers the characteristics, properties, and current treatments or porphyrin-based photosensitizers. The first section introduces the ... -
Characterization and reactivity of a terminal nickel(III)-oxygen adduct
(2015)High-valent terminal metal-oxygen adducts are hypothesized to be the potent oxidizing reactants in late transition metal oxidation catalysis. In particular, examples of high-valent terminal nickel-oxygen adducts are scarce, ... -
The characterization of an intestine-like genomic signature maintained during Barrett's-associated adenocarcinogenesis reveals an NR5A2-mediated promotion of cancer cell survival
(2016)Barrett’s oesophagus (BO), an intestinal-type metaplasia (IM), typically arising in conjunction with gastro-oesophageal reflux disease, is a prominent risk factor for the development of oesophageal adenocarcinoma (OAC). ... -
Characterization of graphene-silicon Schottky barrier diodes using impedance spectroscopy
(2013)We investigate the interface characteristics of graphene-silicon Schottky barrier diodes using dc current-voltage measurements and ac impedance spectroscopy (IS). Diode parameters, including the ideality factor and the ... -
Charge localization increases chemical expansion in cerium-based oxides
(2012)In this work, we demonstrate the mechanism by which electronic charge localization increases the chemical expansion coefficient in two model systems, CeO 2-? and BaCeO 3-?. Using Density Functional Theory calculations, we ... -
Charge-modulated self-assembly and growth of conjugated polyelectrolyte-polyoxometalate hybrid networks.
(2014)Self-assembly of an anionic polyoxometalate with cationic conjugated polyelectrolytes leads to hybrid supramolecular networks whose dimensionality is controlled by the chain length and steric charge distribution. -
Chemical bonding in copper-based transparent conducting oxides: CuMO(2) (M = In, Ga, Sc)
(Institute of Physics, 2011)The geometry and electronic structure of copper-based p-type delafossite transparent conducting oxides, CuMO(2) (M = In, Ga, Sc), are studied using the generalized gradient approximation (GGA) corrected for on-site Coulomb ... -
Chemical microscopy and nanoscopy of bio-materials and living cells, IRMMW-THz
(IEEE, 2010)Raman microspectroscopy of human sperm cells and nearfield infrared microscopy of nanoscale biomaterials like nanografted DNA have been performed. A newly developed station for the ANKA-IR2 beamline combines several ... -
Chemical synthesis and medicinal applications of glycoporphyrins
(2015)This review presents an in-depth overview of the modification of porphyrins with bioconjugates and their applications in medicine today. Porphyrin bioconjugates ranging from nucleotides to steroids are under active ... -
Chemical Synthesis in Solution and Porphyrin Nanostructures on Surfaces - Similar Concepts, Different Results.
(2013)The chemistry of porphyrins is reaching out to more complex and ever larger polyporphyrin arrays. In solution the synthesis of porphyrin arrays is greatly aided by recent advances in organometallic chemistry which now ... -
Chemically Modulated Graphene Diodes
(2013)We report the manufacture of novel graphene diode sensors (GDS), which are composed of monolayer graphene on silicon substrates, allowing exposure to liquids and gases. Parameter changes in the diode can be correlated with ... -
Chemoselective crossed acyloin condensations: catalyst and substrate control
(2011)The interplay between catalyst and substrate control in crossed acyloin condensation reactions has been studied. It was found that a pentafluorophenyl-substituted triazolium ion derived catalyst was capable of catalyzing ...