Materials Literature
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Abstract Synthetic two-dimensional (2D) materials provide an opportunity to realize large-scale applications in next generation electronic and optoelectronic devices. One of the biggest challenges of synthetic 2D materials is the lateral heterogeneity such as non-uniform strain, composition and defect density. The ele…
Phase transition and dielectric tunability of (011) epitaxial Ba0.6Sr0.4TiO3 are modeled using a thermodynamic phenomenological approach. Relative stability of the ferroelectric phases is computed using an improved thermodynamic model and three sets of free energy coefficients. Room-temperature bias field dependence o…
The method for preparation of copolymers of N-vinylpyrrolidone (VP) and N-vinylamine (VA) with high yield were developed; the method involves radical copolymerization of VP with N-vinylformamide(VFA) followed by the removal of formyl protecting group in the presence of inorganic acids. The optimal conditions for synth…
Cross-linked regenerated cellulose fibers (CRCFs) were prepared by wet spinning firstly and then treated by high temperature curing. Cellulose dissolved in ionic liquid together with wrinkle proofing agent and cross-linking agent was employed as spinning solution. The properties and structure of CRCFs were investigate…
Abstract A new simple approach to quantitative measures of coordination polyhedra distortions from ideal symmetry is provided with PolyDis. Within the mathematical basis, it minimizes the normalized displacements of given polyhedra to the ideal shape. Applications are discussed, where PolyDis was used to analyze the t…
This study deals with an evaluation of the sewing thread consumptions relative to the basic stitches shapes. Indeed, lockstitch type 301, three-overegged stitch type 504, chain stitch type 401 and safety stitch (five overegged stitch) type 516 are considered for this investigation. Hence, the overall analyzed consumpt…
Hierarchical assemblies of nanomaterial superstructures with controlled orientation affords a multitude of novel properties of plasmonics and broad applications. Yet constructing multi-functional superstructures with nanoparticles positioned in desired locations remains challenging. Herein, gold nanorods (GNRs) assemb…
A new approach is reported to fabricate micropillar arrays on transparent surfaces by employing the light‐induced self‐writing technique. A periodic array of microscale optical beams is transmitted through a thin film of photo‐crosslinking acrylate resin. Each beam undergoes self‐lensing associated to photopolymerizat…
To ensure stable operation during use, the fundamental characteristics of each component in devices must be maintained. Organic electrodes of poly(3,4-ethylenedioxythiophene) polymerized with poly(4-styrenesulfonate) (PEDOT:PSS) have many deficiencies in this regard despite being widely used in various fields. Here, o…
Considering abundance of silicon on earth with its known acceptance in semiconductor industries and increasing applications of nano porous thin films in various sensors, electrical circuits, new generation batteries, and capacitors, it is essential to comprehend the resistive behavior offered by Silicon Nano-fibrous (…
BACKGROUND: Vascular grafts are widely used as a treatment in coronary artery bypass surgery, hemodialysis, peripheral arterial bypass and congenital heart disease. Various types of synthetic and natural materials were experimented to produce tissue engineering vascular grafts. In this study, we investigated in vivo t…
Cobalt oxide nanopetals were grown on silicon electrodes by heat-treating metallic cobalt films deposited by DC magnetron sputtering. We show that cobalt oxide, with this peculiar nanostructure, is active towards the photo-electrochemical oxidation of water as well as of organic molecules, and that its electrochemical…
Electrically tunable optical properties have been demonstrated in many solid-state materials such as semiconductors, transparent conductive oxides and graphene. However, their tunability is limited in the visible range due to the requirement of extremely large charge build-up or high capacitive fields. Here, we propos…
3-Miktoarm star terpolymer architecture (3µ-ABC), consisting of three dissimilar polymer chains, A, B, and C connected at a junction point, provides a unique opportunity in the design of complex nanoscale patterns such as Archimedean tilings that are not accessible from linear ABC terpolymers. In this work, the synthe…
Abstract Voltage‐stimulated redox‐active materials have received significant attention in the field of organic electronics and sensor technology. Such stimuli‐responsive materials trigger the formation of crystalline nanostructures and facilitate the design of efficient smart devices hitherto unknown. Herein, we repor…
The multilayer architecture consisting of alternating poly( l -lactide) (PLLA) and PLLA/poly( d -lactide) (PDLA) blend layers was fabricated through layer-multiplying coextrusion. With the multiplication of layers, the spherulites tended to disappear and the whole specimen exhibited a transition from isotropic to high…
Within the framework of Timoshenko beam theory, the buckling of nano sandwich beams is developed. The material properties are assumed to vary arbitrarily in both axial and thickness directions. These types of beams are referred to as bi-directional functionally graded (BDFG) beams. Two types of nano sandwich beams wit…
Abstract The self‐assembly of peptides enables the construction of self‐assembled peptide nanostructures (SPNs) with chemical composition similar to those of natural proteins; however, the structural complexity and functional properties of SPNs are far beneath those of natural proteins. One of the most fundamental cha…
Biocompatible nanostructures play an important role in drug delivery and tissue engineering applications. Controlled growth of peptide-based nanoparticles with specific morphology needs an understanding of the role of the sequence and solvation properties. In a previous combined experimental-computational study, we id…
Complete sets of elastic, dielectric, and piezoelectric properties of flux grown rhombohedral Pb(Zn1/3Nb2/3)O3-xPbTiO3(PZN-PT; x = 0.0475, 0.055 and 0.065) single crystals poled along [001] crystal direction have been determined in the present work. Their phase transformation temperatures, coercive fields, and mechani…