Materials Literature
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Antibiotic resistance is one of the world’s most pressing public healthcare problems. People who become infected with drug-resistant microorganisms usually spend more time in the hospital and require a form of treatment that uses two or three different antibiotics and is less effective, more toxic, and more expensive.…
Au₂₅L₁₈ (L = S(CH₂)₂Ph) clusters were prepared and characterized. The resulting monodisperse clusters were reacted with bis(pentafluorobenzoyl) peroxide in dichloromethane to form Au₂₅L₁₈⁺ quantitatively. The kinetics and thermodynamics of the corresponding electron transfer (ET) reactions were characterized via elect…
Periodic dispersion corrected DFT calculations have been performed to study the spin-crossover transition of Fe(phen)(2)(NCS)(2) in the molecular and in the crystalline state. We show that London dispersion interactions play a crucial role in the cohesion of the crystals. Based on calculations of vibrational eigenstat…
Here we report that the dual fluorescence emissions from protein-gold (Au) nanoclusters can greatly be modulated by metal ions and the resultant fluorescence ratiometric responses provide a novel sensory method for the identification of amino acids. The protein-gold (Au) nanoclusters were simply synthesized by the red…
Thulium salts and complexes are shown to be emissive from three states in the excited state manifold of Tm(3+). Formation of the (1)D(2) state can result in luminescence, or in energy transfer to the lower energy (1)G(4) and (3)H(4) emissive states. Where chromophores are present in the ligand structure, emission is r…
The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine‐based seed layer and KOH‐based seed layer were compared. The seed solutions were prepared in monoethanolamine in 2‐methoxyethanol and potassium hydroxide in methanol, respectively. Zinc acetate dihydrate was as a common precur…
We show that the characteristic ligament size of nanoporous Ag synthesized by chemical dissolution of Al from Ag–Al alloys can be tuned from the current submicrometer size (∼100–500 nm) down to a much smaller length scale (∼30–60 nm). This is achieved by suppressing the formation of the Ag2Al intermetallic compound in…
The mechanism of metal anodization has been investigated for several decades, however the present models can only partially explain the experimental phenomena. It is known that the total current in the oxide mainly includes ionic current and electronic current. The formation of oxide film is determined by ionic curren…
BACKGROUND: Multidrug resistance (MDR) mediated by the overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) transporters, such as P-glycoprotein (P-gp), remains one of the major obstacles to effective cancer chemotherapy. In this study, lipid/particle assemblies named LipoParticles (LNPs), consisting…
The effect of confinement on microphase-separated structures of a diblock copolymer is investigated in nanoparticles serving as a three-dimensional (3D) confinement system. We succeeded in preparing nanoparticles having various types of complex structures from hydrophobic diblock copolymers by a simple solvent evapora…
This report explores reactions that proceed during the first few cycles of inorganic film atomic layer deposition (ALD) on natural cellulose cotton fibers, and how surface reactions can explain the previously observed transitions in surface wetting upon ALD on cotton fibers. Atomic layer deposition of aluminum oxide a…
This study investigates the effects of surface ligand distribution pattern (ligand clustering and density) on the internalisation of nanoparticles by a bronchial epithelial in vitro model (Calu-3 cells cultured as polarised layers). Control of ligand clustering and its surface density was achieved through the use of o…
In drug therapy, most therapeutic drugs are of low molecular weight and could freely diffuse in the biological milieu depending on the administration route applied. The main reason for the development of polymeric drug carriers is to obtain desired effects such as sustained therapy, local and controlled release, prolo…
N-Flourenylmethoxycarbonyl (Fmoc) phenylalanine (F) produces co-assembled organogel with 2-aminoanthracene (AA) and 2-aminonaphthalene (NA) at a 1 : 1 molar ratio of the components. The deep green co-assembled F-AA gel is rigid and can be cut into different shapes. At lower concentration, 0.2% (w/v), it shows a mixtur…
Quasi-1D ZnO nanowires (NWs) ordered as patterned 3D hollow hierarchical urchin-like structures have been prepared on transparent conducting substrates by electrodeposition. The ZnO NWs have been grown on self-assembled ordered polystyrene microspheres with electrical charge densities ranging from 5 to 30 C cm(-2) and…
Cu–Au alloy nanostructures have received considerable attention in recent years due to their widespread use in applications such as catalysis, photonics and surface-enhanced Raman scattering (SERS) detection. In this article, a template-based strategy has been developed to synthesize Cu–Au nanotubes with five-fold twi…
We have developed a Au nanowires (NWs)-on-chip surface-enhanced Raman scattering (SERS) multiplex sensor that can sensitively detect multiple toxic metal ions. Most importantly, the reporter elimination method simplified the detection procedure to a single step, which has been much desired for remote environmental mon…
Nanoparticles have been increasingly used as carriers for local and systemic drug delivery via the skin. Dendrimers are emerging as the new generation of nanocarriers in skin drug delivery mainly due to their small size, extreme molecular uniformity, and highly functional surfaces. Despite the abundance of investigati…
Novel red emitting KCaBO3:Eu phosphors have been synthesized by solid-state reaction at various temperatures. Systematic studies on annealing effects and consequent structural evolution and optical properties were investigated by various structural and photoluminescence studies. With an increase in annealing temperatu…
We demonstrate a new concept of carrier-free functionalized drug nanoparticles for targeted drug delivery. It exhibits significantly enhanced drug efficacy to folate receptor-positive cells with high selectivity and a high drug loading content up to more than 78%.