Materials Literature
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We study DNA dynamics relying on the plane-base rotator model for DNA. It is shown that this dynamics can be represented by kink and antikink solitons. We demonstrate that two velocities are relevant and these are the velocities of both a double and a single stranded DNA. A key question is which one is bigger as this…
Surface micropatterning and reactive chemistry are used to develop adhesive materials with adequate adhesion and reduced toxicity.
Abstract The concept of introducing π‐conjugated but anti‐aromatic repeating units into conjugated polymers has been explored. The thermal stability, optical and electrochemical properties of dithieno[a,e]pentalenes (DTP) based polymers have been studied. The effect of introducing electron withdrawing repeating units…
A novel strategy is proposed to initiate radical graft polymerization of sodium acrylate (NaAAc) from amine‐functionalized SiO2 nanoparticles (SiO2‐NH2) to prepare hybrid SiO2 nanoparticles with NaPAAc chains (SiO2‐g‐NaPAAc). The polymerization is carried out in aqueous media at ca. 70–90 °C using CuSO4 as an oxidizin…
Narrowly distributed ( N ‐isopropylacrylamide) (NIPAM) polymers are prepared by reversible addition–fragmentation chain transfer (RAFT) polymerization. After successful cleavage of the trithiocarbonate end groups (thiol generation), they can be grafted to styrene‐butadiene rubber (SBR) by a radical thiol‐ene reaction…
The surface of many real-life samples that are generated in an industrial research laboratory is often contaminated with adsorbed layers of hydrocarbons and/or silicones [in particular, polydimethylsiloxane (PDMS)]. These surface contaminants can attenuate or mask underlying species of interest, inhibiting or compromi…
Poly(propylene oxide) (PPO), a novel soft elastomeric material, and its composites were investigated as a new dielectric electroactive polymer (EAP).The PPO networks were obtained from thiol-ene chemistry by photochemical crosslinking of α,ω-diallyl PPO with a tetra-functional thiol.The elastomer was reinforced with h…
The primary goal of this study was to determine the effect of two protein denaturants, urea and sodium dodecyl sulfate (SDS), on the apparent activation energy of cross-linking bisphenol A diglycidyl ether (DGEBA) with hydrolysate of waste animal proteins. Nonisothermal differential scanning calorimetry was used to me…
A set of 98 nanoporous framework material (NFM) structures was investigated by classical Grand canonical Monte Carlo simulations for low-pressure O2 adsorption properties (Henry's constant and isosteric heat of adsorption). The set of materials includes those that have shown high O2 uptake experimentally as well as a…
Abstract Obwohl eine Vielzahl an industriellen Anwendungen für Zeolithe besteht, haben Bindemittel, die zu Herstellung von konventionellen Zeolithformkörpern benutzt werden, einen negativen Einfluss. Die Herstellung und Charakterisierung von mechanisch stabilen kompakten bindemittelfreien Zeolithformkörpern mit Faujas…
Self-diffusion of methanol, ethanol, 1-propanol and 2-propanol has been studied by molecular dynamics simulation in the temperature range between the melting pressure curve and 478 K at pressures up to 300 MPa. The simulation results on self-diffusion of methanol, ethanol and 2-propanol (for 2-propanol, at high temper…
Abstract A simple method was developed to prepare a cobalt(II) Schiff base (Co(salen))/large mesoporous carbon (LMC) composite film. The structure and electrocatalytic performance of the Co(salen)/LMC film were investigated by scanning electron microscopy (SEM) and cyclic voltammetry (CV). The Co(salen)/LMC film exhib…
Keratinous materials, namely, coarse wool or feather, were dissolved in mixture of alkali metal hydroxide or alkaline earth metal hydroxide in the presence of swelling and reducing agents. The obtained soluble keratin was mixed with polyvinyl alcohol (PVA) before being electro-spun into fibers. The protein content of…
The possibility to utilize nanotechnology for drug development has led to widespread interest and funding opportunities. The public perception of the field of nanoscale science originally referred to technologies dealing with nanomechanics, nanomaterials, nanooptics and nanoelectronics, but increasingly anticipates pr…
Low-melting ionic sulfophosphate glasses from the system P2O5-SO4-MO-Na2O (M = Zn(2+), Ca(2+) or Mg(2+)) have been previously shown by us to allow tuneable aqueous dissolution and also enable processing temperatures well below 400°C. Sulfate ions are extremely safe for use in the body as decades of use of calcium sulf…
We report on experimental results of supercontinuum generation in bulk diamond. The spectrum of supercontinuum generated with 800 nm pump extends up to 600 nm towards short wavelengths. We present the numerical model explaining the phenomenon, in which the role of different nonlinear effects including stimulated Raman…
Platelet-derived growth factor BB (PDGFBB) has been shown to activate the migration of bone marrow-derived mesenchymal stem cells (BM-MSCs), and to contribute to mediating the tropism of BM-MSCs towards gliomas. However, the exact mechanism of this migratory behavior remains to be elucidated. The present study investi…
Third order optical nonlinearities of various solvents such as Dimethylformamide (DMF), ethanol, chloroform, CCl4, acetone, toluene, Tetrahydrofuran (THF), and CS2 are studied in picosecond (ps) and femtosecond (fs) time scales using Z-scan technique. All the solvents show reverse saturable absorption behavior which i…
This paper reports a new type of soft PDMS/metal-film photo-mask that can be applied in contact photolithography with a resolution at sub-micrometer scale and a patterning area over a 4-in wafer. This new type of photo-mask is made from a soft PDMS mold that contains a patterned metal film on the concave surface of it…
Abstract A ladder‐type diindenopyrazine (IPY) was synthesized and used as a building block for constructing conjugated copolymers. Three copolymers based on the IPY moiety were obtained via the Suzuki coupling reaction with different monomers, including 4,7‐dithien‐2‐yl‐2,1,3‐benzothiadiazole (DBT), 5,8‐dithien‐2‐yl‐2…