Browsing Chemistry (Scholarly Publications) by Title
Now showing items 570-589 of 875
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Plasma-assisted simultaneous reduction and nitrogen doping of graphene oxide nanosheets
(2013)An environmentally benign and scalable route for the production of gram scale quantities of nitrogen-doped graphene using a downstream microwave plasma source is reported. Simultaneous reduction and doping of graphene oxide ... -
Plasmon-induced CD response of oligonucleotide-conjugated metal nanoparticles.
(2011)Non-chiral metal nanoparticles conjugated with chiral oligonucleotide molecules demonstrated a circular dichroism (CD) at the plasmonic wavelengths due to aggregation effects. -
Platelets, photosensitizers and PDT
(2013)Photodynamic therapy (PDT) has both direct cell and indirect vascular effects. Both are well established and the latter has given rise to specifically target angiogenesis in PDT treatments. While the vascular effects are ... -
"Poisson's ratio of individual metal nanowires"
(2014)The measurement of Poisson's ratio of nanomaterials is extremely challenging. Here we report a lateral atomic force microscope experimental method to electromechanically measure the Poisson's ratio and gauge factor of ... -
Polaronic trapping of electrons and holes by native defects in anatase TiO2
(2009)We have investigated the formation of native defects in anatase TiO2 using density functional theory DFT modified with on-site Coulomb terms DFT+U applied to both Ti d and O p states. Oxygen vacancies and titanium ... -
Polyelectrolyte-stabilised magnetic-plasmonic nanocomposites
(2018)In this work, new magnetic-plasmonic nanocomposites have been developed through the use of two complementary polyelectrolytes–polystyrene sulfonate (PSS) and poly(allylamine hydrochloride) (PAH). PSS, a negatively charged ... -
Polymorphism of metal-organic frameworks: direct comparison of structures and theoretical N2-uptake of topological - and -isomers.
(2014)The syntheses, calculated surface areas and N2 uptakes of two highly augmented {Cu}2 `paddlewheel?-based MOFs provide a direct comparison of tbo and pto framework polymorphs with identical composition. -
Porous flower-like superstructures based on self-assembled colloidal quantum dots for sensing
(2019)Quantum dots (QDs) have been envisaged as very promising materials for the development of advanced optical sensors. Here we report a new highly porous luminescent material based on colloidal QDs for potential applications ... -
Porphyrin (porphine) A neglected parent compound with potential
(2010)Porphine is the parent compound of a family of biologically and chemically relevant compounds called porphyrins. The potential of these compounds is enormous and it would be advantageous to use the porphine (porphyrin) ... -
Porphyrin substituent regiochemistry, conformation and packing - The case of 5,10-diphenylporphyrin
(2015)5,10-Disubstituted porphyrins are more recent additions to the family of meso-substituted porphyrins. A crystallographic comparison of 5,10-diphenylporphyrin with the regioisomeric 5,15-disubstituted system reveals ... -
Porphyrin-magnetite nanoconjugates for biological imaging
(2011)Background: The use of silica coated magnetic nanoparticles as contrast agents has resulted in the production of highly stable, non-toxic solutions that can be manipulated via an external magnetic field. As a result, the ... -
Porphyrins as Colorimetric and Photometric Biosensors in Modern Bioanalytical Systems
(Wiley, 2020)Advances in porphyrin chemistry have provided novel materials and exciting technologies for bioanalysis such as colorimetric sensor array (CSA), photo-electrochemical (PEC) biosensing, and nanocomposites as peroxidase ... -
Porphyrins as Colorimetric and Photometric Biosensors in Modern Bioanalytical Systems
(2020)From the simple colorimetric detection of physiological pH range to complex DNA strand analysis ‐ the versatility of the macrocyclic system and a plenitude of chemical modifications have allowed the production of a plethora ... -
Porphyrins in troubled times: a spotlight on porphyrins and their metal complexes for explosives testing and CBRN defense
(2018)Porphyrins are large π-aromatic systems that can complex metal ions from all across the periodic table. The resulting metalloporphyrins are readily tunable with regards to analyte detection properties, and constitute an ... -
Position Controlled Growth of Single Crystal Cu3Si Nanostructures
(2015)In this work we demonstrate the position controlled growth of single Cu3Si nanostructures using a Ge-Cu bilayer film that contains a pattern of defects on a Si substrate with a thin oxide layer. The defects act as nucleation ... -
Pre-/post-functionalization in dipyrrin metal complexes - antitumor and antibacterial activity of their glycosylated derivatives
(2018)A post-functionalization route to tris(dipyrrinato) metal complexes is presented giving access to a range of new complexes relevant in the context of medicinal inorganic chemistry. A pentafluorophenyl group in the meso-position ... -
Preliminary investigations on novel camphor-derived chiral sulfones: completely stereoselective formation of tricyclic ?-hydroxysulfones from 8- and 10- functionalized camphor derivatives
(Elsevier, 2011)Some camphor-derived chiral allylic and benzylic sulfones in which the sulfonyl group is located at the C-10, C-9 or C-8 methyl groups of (+)-camphor were synthesized. The C-9 and C-8 substituted sulfones were obtained via ... -
Preparation and biological investigation of luminescent water soluble CdTe nanoparticles
(SPIE, 2005)In this study CdTe quantum dots have been successfully prepared in aqueous medium using several different thiol stabilizers. The resulting nanocrystals were purified and the photoluminescence efficiency was subsequently ... -
Preparation and Characterisation of a Bis‐μ‐Hydroxo‐NiIII2 Complex
(2019)Hydroxide‐bridged high‐valent oxidants have been implicated as the active oxidants in methane monooxygenases and other oxidases that employ bimetallic clusters in their active site. To understand the properties of such ... -
Preparation and properties of buckypaper-gold nanoparticle composites
(2010)Highly conductive buckypaper-gold nanoparticles composites have been prepared by the in situ electroless deposition of gold nanoparticles during the filtration that resulted in increases in conductivities of up to 684% at ...