Materials Literature
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Ultrafine 50 nm line and space nanogratings were fabricated using nanoimprint lithography, and were further used as an alignment layer for liquid crystals. The surface morphologies of the nanogratings were characterized and their surface energies were estimated through the measurement of the contact angles for two dif…
Abstract Poly( L ‐2‐hydroxybutyrate) [P( L ‐2HB)] and poly( D ‐lactide) (PDLA) in their blends were phase separated to form P( L ‐2HB)‐ and PDLA‐enriched domains, and heterostereocomplex (HTSC) crystallization occurred at the interface between these domains. In the blends, HTSC crystallites were formed at crystallizat…
A coarse-grained computational model is used to investigate the effect of a fluid membrane on patchy-particle assembly into biologically relevant structures motivated by viral cores and clathrin. For cores, we demonstrate a nonmonotonic dependence of the promotion of assembly on membrane stiffness. If the membrane is…
Abstract The influence of a variety of factors on the photomechanical output of azo‐CP2‐ xx systems is studied, primarily focusing on a sample with a higher crosslink density (30 mol%) and two new, structurally related crosslinked polyimides with modified backbone flexibility/rigidity. This work elucidates the strong…
The surface enhanced Raman scattering (SERS) spectra of biologically and industrially significant, 2-mercaptoimidazole (2-MI) molecule have been investigated. The SERS spectra of the molecule at different concentrations of the adsorbate are compared with its Fourier transform infrared (FTIR) and normal Raman spectra (…
Temperature-dependent resistivity is studied in single crystals of iron-arsenide superconductor Na${}_{1\ensuremath{-}\ensuremath{\delta}}$Fe${}_{1\ensuremath{-}x}$Co${}_{x}$As for electrical current directions along, ${\ensuremath{\rho}}_{a}(T)$, and transverse, ${\ensuremath{\rho}}_{c}(T)$, to the Fe-As layers. Dopi…
A simple, rapid, and robust technique for controlling the self-assembly of block copolymers (BCPs) with a large segmental interaction parameter, χ, is described using a surface modified with anchored BCP brushes. End-functionalized poly(styrene-b-ethylene oxide)s (PS-b-PEOs), where the fraction of PS (f(PS)) was varie…
Working equations that describe wetting phenomena can be derived in a variety of ways starting from capillary forces, Laplace pressure, or solid surface energies. We examined the relative importance of the contact line and interfacial areas in the capillary rise inside small diameter glass tubes. A series of simple ex…
This paper describes the first experiments that use only two carbon fiber field emitters with different separations to quantify and isolate the effect of electric field screening. Experiments show that when the separation between the two carbon fiber cathodes decreases, both the effective field enhancement factor, βef…
Linear and nonlinear optical susceptibility dispersion and hyperpolarizability of C(11)H(8)N(2)O, o-methoxydicyanovinylbenzene, crystals were performed by means of density functional theory (DFT). The exchange and correlation potential was described within a framework of the local density approximation (CA-LDA) and gr…
First-principles calculations are used to predict properties of (001) epitaxial, short-period PbTiO${}_{3}$/BiFeO${}_{3}$ superlattices (SL) as a function of the in-plane lattice constant. These heterostructures exhibit original phenomena, such as three strain-driven isostructural phase transitions (two being of first…
Diatoms are the most species-rich group of microalgae, and their contribution to marine primary production is important on a global scale. Diatoms can form dense blooms through rapid asexual reproduction; mutations acquired and propagated during blooms likely provide the genetic, and thus phenotypic, variability upon…
Cyclic peptide nanotubes (CPNTs) formed by the self-assembly of cyclic peptides (CPs) with an even number of alternate l/d amino acids are typically used in the field of the transport of ions and drug molecules across the lipid bilayer. This study investigates the transport mechanism of the antitumor drug molecule, 5-…
The electrochemistry of the water oxidation catalyst, Rb(8)K(2)[{Ru(4)O(4)(OH)(2)(H(2)O)(4)}(γ-SiW(10)O(36))(2)] (Rb(8)K(2)-1(0)) has been studied in the presence and absence of potassium cations in both hydrochloric and sulfuric acid solutions by transient direct current (dc) cyclic voltammetry, a steady state dc met…
A novel strategy by combination of surface-initiated atom transfer radical polymerization (ATRP) and in situ chemical oxidative graft polymerization was employed to tether stainless steel (SS) with poly(4-vinylaniline)-polyaniline (PVAn-PANI) bilayer coatings for mitigating biocorrosion by sulfate-reducing bacteria (S…
The critical properties of the finite temperature Mott end point are drastically altered by a coupling to crystal elasticity, i.e., whenever it is amenable to pressure tuning. Similar as for critical piezoelectric ferroelectrics, the Ising criticality of the electronic system is preempted by an isostructural instabili…
The synthesis and characterisation, and mesomorphic and photophysical properties of a new type of benzoxazole-terminated heterocyclic compounds, 2-(4ʹ-alkoxybiphenyl-4-yl)-benzoxazole derivatives (nB-x), are reported. For better understanding of the structure–property relationships, compounds bearing a variety of pola…
We employ a combinatorial library approach to control the shape of the silver nanostructures by regulating the structure of their seeds. Twenty-four polymers are investigated in detail with respect to their functionalities, chemical structures, molecular weights, and charges, each of which turns out to play significan…
INTRODUCTION: The development of nanomedicine, during the last 10 years have given rise to novel delivery systems among which multifunctional platforms called nanotheranostics that are designed to simultaneously diagnose and cure cancer. These systems can be built using the large panel of biocompatible and biodegradab…
Triplet acceptors such as naphthalene, pyrene, and anthracene have been found to be highly effective in controlling the photoisomerization efficiency of N,C-chelate boryl chromophores, establishing the involvement of a photoactive triplet state in the isomerization of this class of photochromic compounds.