Materials Literature
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All present and accounted for? Cell mass spectrometry was used to determine the quantity of both gold and polystyrene nano-/microparticles taken up into cells (see picture). The uptake amounts measured for gold nanoparticles were similar to those determined by inductively coupled plasma mass spectrometry, a technique…
The ring-opening polymerisation of lactide by a range of amino-oxazoline and amino-thiazoline catalysts is reported. The more electron-rich derivatives are demonstrated to be the most highly active and polymerisation is well controlled, as evidenced by the linear relationship between the molecular weight and both the…
Various nanoscale elements are currently being explored for bio-applications, such as in bio-images, bio-detection, and bio-sensors. Among them, nanodiamonds possess remarkable features such as low bio-cytotoxicity, good optical property in fluorescent and Raman spectra, and good photostability for bio-applications. I…
Evolution of structure of high-purity and commercially pure copper at severe plastic deformation (SPD) by high pressure torsion (HPT) at room temperature and in liquid nitrogen has been studied by transmission electron microscopy (TEM) and measurements of microhardness. Thermal stability of structure obtained by HPT h…
Abstract Extension of previous work on the lanthanide(III) ion complexes of p‐tert ‐butyltetrathiacalix[4]arene has led to a variety of structurally characterised species containing oxo‐, hydroxo‐ and aqua‐ligands presumably derived from water present in the preparative medium, along with the thiacalixarene in various…
We reported the deliberate control on the micelle opening and closing of amphiphilic polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) micellar films by exposing them to selective solvents. We first treated the micellar films with polar solvents including ethanol and water (pH = 4, 8, and 12) that have different aff…
Abstract Using an electrospinning technique, polymer materials have been spun using electrostatic potential to create a fiber mat. To develop the electrospinning opportunities available for practical applications, it is important that a full understanding of process parameters is achieved. These fundamental principles…
An active molecular plasmonics system is demonstrated where a supramolecular chromophore generated in a host-guest binding event couples with the localized surface plasmon resonance (LSPR) arising from gold nanodisc gratings. This coupling was achieved by wavelength-matching the chromophore and the LSPR with the laser…
A two-step synthesis of a novel mesostructured silicate, KIL-2, and its manganese-containing analogue, Mn/KIL-2, has been developed. KIL-2 possesses interparticle mesopores with pore dimensions between 5 and 60 nm and a surface area of 448 m(2). The mesopores are formed by the aggregation of silica nanoparticles, whic…
Layer-by-layer (LbL) assembly was conducted on CaCO(3) microparticles pre-doped with polystyrene-block-poly(acrylic acid) (PS-b-PAA) micelles, and resulted in micelles encapsulation in the microcapsules after core removal. Distribution of the micelles in the templates and capsules was characterized by transmission ele…
Abstract In this article, it is shown that the Van der Pauw (VDP) method, generally known in microelectronics, can be successfully adapted to sheet resistance measurements of electroconductive fabrics. We prepared two polypyrrole‐coated woven para‐aramide fabrics and used a simple setup to measure their sheet resistan…
Abstract The synthesis of high oil‐absorption resins by suspended emulsion polymerization process for the first time with butyl methacrylate (BMA) and short‐chain methyl methacrylate (MMA) as the monomers was studied. And the effects of different polymerization technological parameters, such as the comonomer, initiato…
Abstract The waterborne polyurethane (WPU) was synthesized from the polycondensation between isophorone diisocyanate (IPDI) and polyoxypropylene glycol (N‐210) and then dispersed into water. Subsequently, the WPU emulsion was modified with antimony doped tin oxide (ATO) nanoparticle by ultrasonic dispersion. The ATO/W…
Fluorescent nitrobenzoxadiazole analogues of alpha-tocopherol (NBD-alpha-Tocs; lambda(ex) = 468 nm, lambda(em) = 527 nm) have been made previously to aid study of the intracellular location and transfer of vitamin E. However, these analogues are susceptible to photobleaching while under illumination for confocal micro…
Abstract In this study, we evaluated some physical and mechanical properties of polypropylene (PP) composites reinforced with pine‐cone flour and wood flour. Five types of wood–plastic composites (WPCs) were prepared from mixtures of cone flour, wood flour, PP, and a coupling agent. The water resistance and flexural p…
The preparation of exquisite hierarchical worm-like Co(1-x)S (x = 0.75) microtubes by a one-pot complex-surfactant-assisted hydrothermal method is successfully achieved for the first time. The hierarchical structures of the microtube wall are assembled from numerous interleaving hexagonal nanoplates. X-ray diffraction…
Hyperbranched polyacrylamides (b-PAM) were synthesized using a semibatch RAFT copolymerization of acrylamide (AM) and N,N ′-methylenebis(acrylamide) (BisAM) with continuous feeding of BisAM. Small amounts of chain transfer agent (CTA), 3-benzyltrithiocarbonyl propionic acid, with 1/20 to 1/50 molar ratios to BisAM wer…
Anion exchange capabilities of layered double hydroxides (LDHs) make them uniquely suitable for the creation of bio-inorganic nanocomposites, with amino acids and DNA fragments occurring as negatively charged species at most pH values. To better understand molecular-level structural, thermodynamic and kinetic aspects…
The phase behavior of helical packings of thermoresponsive microspheres inside glass capillaries is studied as a function of the volume fraction. Stable packings with long-range orientational order appear to evolve abruptly to disordered states as the particle volume fraction is reduced, consistent with recent hard-sp…
Several microreactors combined with an online detector were used as a combinatorial synthesis system to optimize nanoparticle synthesis for rapid and flexible development of nanoparticles to meet various needs and applications. Three reaction parameters—temperature, reaction time, and reaction additive (dodecylamine)…