Facile, tunable, and SERS-enhanced HEPES gold nanostars
The facile, green synthesis of gold nanostars (AuNSs) with tunable branch lengths for SERS applications.
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Polyether complexes of groups 13 and 14
Notable aspects of the chemistry of complexes of polyether ligands including crown ethers, cryptands, glycols, glymes, and related polyether ligands with heavier group 13 and 14 elements are reviewed with a focus on results from 2005 to the present. The majority of reported polyether complexes contain lead(ii) and tha…
Nanohybrid polymer brushes on silica for bioseparation
, respectively. Glycoprotein binding on the nanohybrid could be controlled by varying the pH of the binding buffer. By increasing the temperature from 20 °C to 35 °C, glycoprotein binding onto the nanohybrid was decreased. This new pH- and temperature-responsive nanohybrid will be useful for a number of biotechnologic…
Modulating the generation of long-lived charge separated states exclusively from the triplet excited states in palladium porphyrin–fullerene conjugates
This study demonstrates molecular engineering of a series of donor-acceptor systems to allow control of the lifetime and initial spin multiplicity of the charge-separated state. By tuning the rate of intersystem crossing (ISC) and the donor-acceptor distance, electron transfer can be made to occur exclusively from the…
Reorganization of self-assembled supramolecular materials controlled by hydrogen bonding and hydrophilic–lipophilic balance
Supramolecular assembly to form a large variety of nanostructures has received increasing attention for diverse applications, in particular biomedical applications involving drug delivery, bioimaging, therapy and regenerative medicine. Meanwhile, the modulation of morphology and structure of nanoassemblies is a still…
Preparation and characterization of antibacterial paper coated with sodium lignosulfonate stabilized ZnO nanoparticles
The ZnO nanoparticles were synthesized using sodium lignosulfonate as a stabilizing agent and sodium hydroxide as a precipitation agent. The negatively charged ZnO nanoparticles were deposited onto cellulose paper through a layer-by-layer approach.
Localized surface plasmon resonance on Au nanoparticles: tuning and exploitation for performance enhancement in ultrathin photovoltaics
We report a detailed correlation analysis of the size, shape, and distribution of Au nanoparticles (NPs) on fine-tuning of localized surface plasmon resonance and optical absorption cross-section.
In situ bifunctionalized carbon dots with boronic acid and amino groups for ultrasensitive dopamine detection
In this paper, <italic>in situ</italic> bifunctionalized carbon dots (B-N-CDs) with boronic acid and amino groups were prepared by a simple hydrothermal method using 3-aminophenylboronic acid as the sole precursor.
Construction of coumarin-based cross-linked micelles with pH responsive hydrazone bond and tumor targeting moiety
, respectively, to HeLa cells, but have lower cytotoxicity to L929 cells. The pH-responsive x-micelles-FA exhibited superior extracellular stability but activated intracellular drug release. We have demonstrated that the polyurethane with UV- and pH-responsive properties as a novel platform for tumor-targeting drug de…
Silver nanoparticles induced oxidative and endoplasmic reticulum stresses in mouse tissues: implications for the development of acute toxicity after intravenous administration
proteins/genes, were significantly upregulated in a dose-dependent manner. In the liver, spleen, lung and kidney, high stress accompanied by apoptosis occurred. Low stress levels were observed in the heart and brain. Thus, it is proposed that the liver, spleen, lung and kidney are dominant target tissues of AgNP expos…
Supercapacitive hybrid materials from the thermolysis of porous coordination nanorods based on a catechol porphyrin
Synthesis of a series of porous coordination polymers with nanorod morphology constructed from a catechol-substituted porphyrin is reported. Thermolysis of these materials yields supercapacitive materials with high capacitances and excellent cycling properties.
Defect segregation and optical emission in ZnO nano- and microwires
The spatial distribution of defect related deep band emission has been studied in zinc oxide (ZnO) nano- and microwires using depth resolved cathodoluminescence spectroscopy (DRCLS) in a hyperspectral imaging (HSI) mode within a UHV scanning electron microscope (SEM). Three sets of wires were examined that had been gr…
Functionalisation of silica–carbonate biomorphs
Biomorphs are a unique class of self-organised silica-carbonate mineral structures with elaborate shapes. Here we report first approaches to modify these complex inorganic architectures through silane chemistry, binding of nanoparticles, and organic polymerisation. This leads to functional nanostructures in which the…
Controlled production of the elusive metastable form II of acetaminophen (paracetamol): a fully scalable templating approach in a cooling environment
A scalable, transferable, cooling crystallisation route to the elusive, metastable, form II of the API acetaminophen (paracetamol) has been developed using a multicomponent "templating" approach, delivering 100% polymorphic phase pure form II at scales up to 120 g. Favourable solubility and stability properties are fo…
Dispersing Pd nanoparticles on N-doped TiO 2 : a highly selective catalyst for H 2 O 2 synthesis
The selectivity of H <sub>2</sub> O <sub>2</sub> synthesis directly from H <sub>2</sub> and O <sub>2</sub> over Pd/TiO <sub>2</sub> catalysts was found to be improved greatly if TiO <sub>2</sub> was doped by nitrogen before dispersing Pd nanoparticles.
Tailoring optical, magnetic and electric behavior of lanthanum strontium manganite La 1−x Sr x MnO 3 (LSM) nanopowders prepared via a co-precipitation method with different Sr 2+ ion contents
We report on the synthesis and characterization of lanthanum strontium manganite with tunable optical, magnetic and electrical properties.
Self-healing fluoropolymer brushes as highly polymer-repellent coatings
An SI-ATRP-based fluoropolymer brush combines high stability with excellent repellence against a range of organic polymers. In addition, upon serious damage (acid/base/UV) both the hydrophobicity and antifouling character can be repaired many times.
Bio-based polyurethanes with shape memory behavior at body temperature: effect of different chain extenders
The chain extenders are used to adjust the transition temperatures and shape memory properties of bio-based shape memory polyurethanes.
New insights into the mechanism of interaction between CO 2 and polymers from thermodynamic parameters obtained by in situ ATR-FTIR spectroscopy
This work reports new physical insights of the thermodynamic parameters and mechanisms of possible interactions occurring in polymers subjected to high-pressure CO2. ATR-FTIR spectroscopy has been used in situ to determine the thermodynamic parameters of the intermolecular interactions between CO2 and different functi…
Apparatus for the measurement of electrical resistivity, Seebeck coefficient, and thermal conductivity of thermoelectric materials between 300 K and 12 K
We have developed a custom apparatus for the consecutive measurement of the electrical resistivity, the Seebeck coefficient, and the thermal conductivity of materials between 300 K and 12 K. These three transport properties provide for a basic understanding of the thermal and electrical properties of materials. They a…