Materials Literature
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Abstract The central role of prevascularization of engineered tissue grafts in postimplantational survival and integration is becoming increasingly appreciated. An in‐depth understanding of the regulating factors and intricacies of generation of three‐dimensional vascular networks in vitro will facilitate effective fa…
ABSTRACT We experimentally demonstrated an electrically controlled variable focus optical system based on cascading polymer dispersed liquid crystal (PDLC) lens. Through adjusting external electric field applied on the hole‐type electrode of PDLC lens to change the spatial distribution of refractive index of PDLC, the…
This paper deals with the mechanical behavior of bamboo fiber-reinforced biodegradable composites (green composites). A starch-based, dispersion type biodegradable resin was used as matrix polymer, and this matrix was reinforced by long bamboo fibers which were extracted by a steam-explosion method. The experimental r…
The layered double hydrotalcites (LDH) with molar ratio Zn:Al=2:1 was prepared by urea method. The mixed oxides were prepared by calcining the LDH at different temperatures and a series of dye-sensitized solar cells were assembled by the corresponding oxides and the dye Ruthenizer 535-bisTBA (N719). The basic paramete…
The (1‐ x )(K 0.5 Na 0.5 )NbO 3 ‐ x LaFeO 3 (abbreviated as (1‐ x )KNN‐ x LF , x = 0–0.03) ceramics were synthesized by the conventional solid‐state sintering method. X ‐ray diffraction analysis shows that the phase structure of the (1‐ x )KNN‐ x LF ceramics transfers from orthorhombic to pseudocubic with increasing t…
The purpose of the paper is the problem of determination of parameters of hyperfine wire drawing process of biocompatible magnesium alloys. The originality of the considered alloys is the intergranular fracture mechanism associated with small strains (0.07–0.09) in macro‐scale. It was proven that the material state ju…
The ferrimagnetic spinel MnV${}_{2}$O${}_{4}$ undergoes an orbital-induced cubic-to-tetragonal distortion at ${T}_{\mathrm{YK}}=58$ K, below which noncollinear commensurate ferrimagnetic ordering occurs. Using inelastic neutron scattering, we investigated low-energy dynamics in its cubic phase above ${T}_{\mathrm{YK}}…
This research was conducted to analyze the alkali treatment in improving the quality of coir fiber. Study coir fiber done by specifying the physical characteristics and methods of making specimen, mechanical treatment and testing the tensile strength of single fiber. Determine the characteristics physical of the fiber…
A compositionally matched superlattice-like (SLL) structure comprised of Ge2Sb2Te5 (GST) and nitrogen-doped GST (N-GST) was developed to achieve both low current and high endurance Phase Change Random Access Memory (PCRAM). N-GST/GST SLL PCRAM devices demonstrated ∼37% current reduction compared to single layered GST…
A theoretical/computational model for the irradiation-driven compositional instabilities in binary solid solutions has been developed. The model is suitable for investigating the behavior of structural alloys and metallic nuclear fuels in a reactor environment as well as the response of alloy thin films to ion beam ir…
Cholesterol appended pyridinium urea 1 acts as low molecular weight gelator in DMSO:H2O (1:1, v/v) showing distinct colour change in the presence of aqueous solution of KF as well as tetrabutylammonium fluoride and recognises F− specifically. In addition, this hydrogel is noted to detect aqueous solution of Cu2+ and P…
We report here the dynamics in thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) nanogel crystals undergoing melting/freezing and verify the applicability of the dynamical criterion for melting/freezing proposed by Löwen et al. [Phys. Rev. Lett. 70, 1557 (1993)]. According to this criterion the ratio of long time…
It has been recently found by energy filtered transmission electron microscopy (EFTEM) that metastable SiOx≈1 films decay into a Si nanowire network embedded in SiO2 by spinodal decomposition during thermal treatment. To have a guideline for nanocomposites fabrication, details of the morphology evolution have been stu…
Charge transport in eosin yellow sensitized CdS 1-D nanostructures is studied. Direct conduction pathway for electron transport in nanowires enhances <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msub><mml:mrow><mml:mi>V</mml:mi></mml:mrow><mml:mrow><mml:mtext>oc</mml:mtext></mml:mrow…
Residues of Phyllostachys pubescens bamboo obtained from central Louisiana, USA, were comprehensively investigated for use in liquefaction. The results showed that bamboo branches had the highest Klason lignin and ash content, about 26% and 2.75%, respectively. The epidermis layer sample had relatively higher carbohyd…
ZnO:Cl thin films grown on glass substrates at 200 °C by the pulsed laser deposition (PLD) technique using ZnO:Cl targets show preferential c-axis (0002) orientation having hexagonal wurtzite structure without secondary phases. The chlorine concentration in the ZnO:Cl thin films is varied from 1.04 to 7.28 at%. X-ray…
Toughening ceramics has been a long-standing challenge. By chemically infiltrating B4C into aligned carbon nanotubes (CNTs) sheets, we fabricate a novel CNT/B4C composite with a fracture strength approaching the theoretical maximum of B4C matrix. The CNT/B4C composites simultaneously possess a strongly bonded tube/mat…
The present study reports the influence of chemical and electrical treatments (CET) of Li-modified sodium potassium niobate [Li0.06(Na0.5K0.5)0.94NbO3, LNKN] piezo-biomaterial on in vitro bioactivity. The chemical treatment of LNKN substrate was performed by Ti sputtering, followed by immersion in NaOH aqueous solutio…
As a growth-dominated phase change material, Sb4Te (ST) has fast crystallization speed while thermal stability is very poor, which makes it unsuitable for application in phase change random access memory (PCRAM). After doping Ti, the crystallization temperature is greatly improved to 210.33 °C, which is much higher th…
Cross-plane thermal conductivity kth measurements of vertical stacks of FePt/C were used to estimate the in-plane thermal conductivity of Heat Assisted Magnetic Recording (HAMR) media that consist of columnar FePt grains segregated by thin C grain boundaries. FePt/C multilayers with varied repeat units and FePt layer…