A simple visual assay based on small molecule hydrogels for detecting inhibitors of enzymes
Here we report a simple approach to develop assays based on the hydrogelation of small molecules for quick detecting inhibitors of enzymes.
Materials Literature
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New generation polymers: the role of metal alkoxides as catalysts in the production of polyoxygenates
Polyoxygenates such as polyesters and polycarbonates derived from readily renewable resources, e.g. lactide from corn and carbon dioxide, are attractive as environmentally friendly (green) alternatives to polymers derived from fossil fuels, and will play an increasing role in the market place as we move from petrochem…
A Review of Current Flame Retardant Systems for Epoxy Resins
The review covers materials currently available or which appear to be in serious development, with emphasis on electrical laminates and encapsulation, and brief coverage of other applications. The dominant technology for FR-4 printed wiring boards uses tetrabromobisphenol-A reacted into the epoxy resin. Nonhalogen sys…
Characterization of neural stem cells on electrospun poly(L-lactic acid) nanofibrous scaffold
Nanofibrous poly(L-lactic acid) (PLLA) scaffolds were fabricated by an electrospinning technique and characterized by scanning electron microscopy, mercury porosimeter, atomic force microscopy and contact-angle test. The produced PLLA fibers with diameters ranging from 150 to 350 nm were randomly orientated with inter…
Toward Multiscale Modeling of Carbon Nanotube Transistors
Multiscale simulation approaches are needed in order to address scientific and technological questions in the rapidly developing field of carbon nanotube electronics. In this paper, we describe an effort underway to develop a comprehensive capability for multiscale simulation of carbon nanotube electronics. We focus i…
Shape memory alloy actuators in smart structures: Modeling and simulation
This review article gives an overview of the new and quickly developing field of shape memory alloy (SMA) actuators in smart structures. The focus is on the aspects of modeling and simulation of such structures, a task that goes beyond classical modeling approaches as it has to combine constitutive modeling with struc…
X-ray absorption spectroscopy under reaction conditions: suitability of different reaction cells for combined catalyst characterization and time-resolved studies
Structure–activity correlations of solid catalysts and time-resolved studies generally require that the structure within a solid catalyst is probed simultaneously and at the same location where the catalysis and the structural changes occur. These requirements lead to a compromise between the spectroscopic arrangement…
Interstitial oxygen conduction in lanthanum oxy-apatite electrolytes
The La10 − x(SiO4)6O3 − 1.5x (9.33 ≤ 10 − x ≤ 9.73) apatite series has been prepared and hexagonal single phases were obtained in a narrow compositional range (9.33 ≤ 10 − x ≤ 9.60). The room temperature crystal structure of La9.55(SiO4)6O2.32 has been determined from joint Rietveld refinement of neutron and laborator…
Chemical analysis and cellular imaging with quantum dots
Quantum dots are tiny light-emitting particles on the nanometer scale. They are emerging as a new class of biological labels with properties and applications that are not available with traditional organic dyes and fluorescent proteins. Their novel properties such as improved brightness, resistance against photobleach…
Advanced liquid crystals for television
This review summarizes the diverse material requirements of the main Liquid Crystal Display (LCD) technologies used for televisions (TVs). We discuss recent advances in liquid crystal materials for this application. We highlight key materials and discuss synthesis, structure–property relations and LC mixture propertie…
Supercritical fluid synthesis and characterization of catalytic metal nanoparticles on carbon nanotubes
A rapid, convenient and environmentally benign method has been developed for the fabrication of metal nanoparticle–multiwall carbon nanotube (MWCNT) composites. Nanoparticles of palladium, rhodium and ruthenium are deposited onto functionalized MWCNTs through a simple hydrogen reduction of metal–β-diketone precursors…
Effect of Cu Content on Corrosion Behavior of 7xxx Series Aluminum Alloys
The corrosion behavior of 7xxx aluminum alloys with various Cu content was investigated using polarization and electrochemical impedance spectroscopy (EIS) techniques. Two breakdown potentials were found in Cu-containing alloys in deaerated chloride solution, and the values increased logarithmically with increasing Cu…
The high resolution powder diffraction beam line at ESRF
The optical design and performance of the high-resolution powder diffraction beam line BM16 at ESRF are discussed and illustrated. Some recent studies carried out on BM16 are described, including crystal structure solution and refinement, anomalous scattering, in situ measurements, residual strain in engineering compo…
Quantum Dot Nanocrystals for In Vivo Molecular and Cellular Imaging¶
Semiconductor quantum dots (QD) are nanometer-sized crystals with unique photochemical and photophysical properties that are not available from either isolated molecules or bulk solids. In comparison with organic dyes and fluorescent proteins, QD are emerging as a new class of fluorescent labels with improved brightne…
Stereoselective ring-opening polymerization of racemic lactide using alkoxy-amino-bis(phenolate) group 3 metal complexes
Polymerization of racemic lactide initated by alkyl- and amido-yttrium complexes of a non-chiral tetradentate alkoxy-amino-bis(phenolate) ligand proceeds rapidly, in a controlled manner, to give heterotactic-rich polylactic acid.
Materials processing in supercritical carbon dioxide: surfactants, polymers and biomaterialsElectronic supplementary information (ESI) available: video clips relating to work carried out in the Howdle research group. See http://www.rsc.org/suppdata/jm/b3/b315262f/
Supercritical carbon dioxide (scCO2) is a unique solvent with a wide range of interesting properties. This review focuses upon recent advances in the use of scCO2 in materials synthesis and materials processing. In particular, we consider the advances made in three major areas. First the design and application of new…
Synthesis and Properties of a Water‐Soluble Single‐Walled Carbon Nanotube–Poly(m‐aminobenzene sulfonic acid) Graft Copolymer
Abstract Poly( m ‐aminobenzene sulfonic acid) (PABS), was covalently bonded to single‐walled carbon nanotubes (SWNTs) to form a water‐soluble nanotube–polymer compound (SWNT–PABS). The conductivity of the SWNT–PABS graft copolymer was about 5.6 × 10 –3 S cm –1 , which is much higher than that of neat PABS (5.4 × 10 –7…
Peptide based amphiphiles
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Carbon Based Refractories
Carbon based or containing refractories has been attracting great attention because of their unique properties e.g. high thermal conductivity, low thermal expansion, high resistance to thermal shock and chemical inertness to the slag. They are classified into two groups; carbon/bricks/blocks and carbon containing mate…
Formation and atomic structure of B12N12nanocage clusters studied by mass spectrometry and cluster calculation
Boron nitride (BN) nanocage clusters of B12N12 were synthesized, and detected by laser desorption time-of-flight mass spectrometry. The B12N12 clusters consisted of 4- and 6-membered BN rings satisfying the isolated tetragonal rule, which was optimized by molecular orbital calculations. The electronic structure showed…