Chemistry (Scholarly Publications): Recent submissions
Now showing items 261-280 of 931
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Nonlinear ion drift-diffusion memristance description of TiO2 RRAM devices
(2020)The nature and direction of the hysteresis in memristive devices is critical to device operation and performance and the ability to realise their potential as neuromorphic applications. TiO2 is a prototypical memristive ... -
Silicon microcantilever sensors to detect the reversible conformational change of a molecular switch, Spiropyan
(2020)The high sensitivity of silicon microcantilever sensors has expanded their use in areas ranging from gas sensing to bio-medical applications. Photochromic molecules also represent promising candidates for a large variety ... -
3D Printed Sugar-Sensing Hydrogels
(2020)The ability of boronic acids to reversibly bind diols, such as sugars, has been widely studied in recent years. In solution, through the incorporation of additional fluorophores, this boronic acid-sugar interaction can be ... -
Single-atom based coherent quantum interference device structure
(2015)We describe the fabrication, operation principles, and simulation of a coherent single-atom quantum interference device (QID) structure on Si(100) controlled by the properties of single atoms. The energy and spatial ... -
Fluorescent chemosensors: The past, present and future
(2017)Fluorescent chemosensors for ions and neutral analytes have been widely applied in many diverse fields such as biology, physiology, pharmacology, and environmental sciences. The field of fluorescent chemosensors has been ... -
Molecular logic gates: The past, present and future
(2018)The field of molecular logic gates originated 25 years ago, when A. P. de Silva published a seminal article in Nature. Stimulated by this ground breaking research, scientists were inspired to join the race to simulate the ... -
White-light emission from discrete heterometallic lanthanide-directed self-assembled complexes in solution
(2017)White-light-emitting materials have attracted significant interest in recent years due to their potential applications in solid-state lighting and flat-panel displays. Design of such materials is challenging and often ... -
Layered CeSO and LiCeSO Oxide Chalcogenides Obtained via Topotactic Oxidative and Reductive Transformations
(2019)The chemical accessibility of the CeIV oxidation state enables redox chemistry to be performed on the naturally coinage-metal-deficient phases CeM1–xSO (M = Cu, Ag). A metastable black compound with the PbFCl structure ... -
Switching at the contacts in Ge9Sb1Te5 phase-change nanowire devices
(2019)Phase-change random access memory is a promising approach to non-volatile memory. However, the inability to secure consistent, reliable switching on a nanometre scale may limit its practical use for high density applications. ... -
Self-Assembled Two-Dimensional Supramolecular Networks Characterized by Scanning Tunneling Microscopy and Spectroscopy in Air and under Vacuum
(2018)We combine ambient (air) and ultrahigh vacuum (UHV) scanning tunneling microscopy (STM) and spectroscopy (STS) investigations together with density functional theory (DFT) calculations to gain a subnanometer insight into ... -
Mapping Conformational Changes in a Self-Assembled Two-Dimensional Molecular Network by Statistical Analysis of Conductance Images
(2019)A self-assembled two-dimensional (2D) film of tetra-phenyl-porphyrin-4-ferrocene molecules on Au(111) is studied by STM for the presence of intra- and intermolecular correlations in the configurations of the four-pendant ... -
Investigating the Impact of Conformational Molecular Engineering on the Crystal Packing of Cavity Forming Porphyrins
(2019)Herein we report the synthesis of 5,10,15,20-tetraaryl-(X)-substituted- 2,3,7,8,12,13,17,18-octaethylporphyrins (OETArXPs) and a structural investigation of their solid-state properties via small molecule X-ray diffraction. ... -
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 ... -
Solid-state supramolecular architectures of a series of Hg(II) halide coordination compounds based on hydroxyl-substituted Schiff base ligands
(2019)Crystal engineering of coordination complexes has become an important research domain of modern inorganic chemistry. Herein, six Hg(II) coordination compounds containing 2- ((pyridin-3-ylmethylene)amino)phenol and ... -
A lead BODIPY-phenylanthracene dyad for application in photodynamic therapy
(2019)Over the past four years we have developed BODIPY dyads capable of triplet state generation from a charge transfer states generated by photoinduced electron transfer. In the current work we identify a lead compound for ... -
Synthesis of Porphyrinoids, BODIPYs, and (Dipyrrinato)ruthenium(II) Complexes from Prefunctionalized Dipyrromethanes
(2019)The introduction of functional groups into the mesoposition of dipyrromethanes, boron-dipyrromethenes (BODIPYs) and porphyrinoids, is of fundamental importance in designing such dye systems for material sciences or ... -
Controllable Charge-Transfer Mechanism at Push-Pull Porphyrin/Nanocarbon Interfaces
(2019)Ultrafast charge transfer at the interfaces between 5,15-donor-acceptor push-pull porphyrins (Por-tBu and Por-OC8) and nanocarbon materials in the form of fullerene (C60) and graphene carboxylate (GC) are investigated ... -
Structure and conformation of photosynthetic pigments and related compounds. 15. Conformational analysis of chlorophyll derivatives-implications for hydroporphyrins in vivo
(2019)Chlorophylls are fundamental macrocyclic cofactors in photosynthetic reaction centers and light‐harvesting complexes. Their biological function is well understood on the basis of protein structural data and a significant ... -
Konformativer Umbau von Porphyrinen als Rezeptoren mit schaltbaren N‐H⋅⋅⋅X‐Bindungsmodi
(2019)Die Selektivität und funktionale Variabilität von Porphyrinkofaktoren basiert typischerweise auf der Substratbindung durch Metalloporphyrine, wobei die Pyrrolstickstoffatome nur zur Chelatisierung der Metallionen dienen. ...
