Materials Literature
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We developed an educational path based on nitinol, a shape memory alloy which conveniently exemplifies the smart material concept, i.e., a material that performs a predetermined, reversible action in response to a change in the environment. Nitinol recovers a given shape, changes its resistivity drastically and modifi…
Novel toughened but highly cross-linked epoxy thermosets are presented as new liquid adhesives. Linear polyols of oligomeric poly(ϵ-caprolactone) and malic acid containing OH-groups along the linear polyester chain were covalently integrated in a cationically polymerized, cycloaliphatic epoxy resin. The clear and tran…
We apply a general theory of finite-size scaling near first-order phase transitions to study the multi-site correlation functions that arise in the modeling of surface diffusion in the local equilibrium limit. A formula for the correlation functions in the case of coexistence of several phases is thus readily obtained…
Nanoscale ferroelectric honeycombs, comprised of vertically aligned PbTiO 3 nanotubes, are fabricated by vapor phase reaction between lead acetate‐infiltrated TiO 2 nanotubes and PbO vapor. PbTiO 3 nanohoneycombs converted by vapor phase reaction at 550°C showed well‐aligned nanoscale structure with alignment angle le…
Explicit evaluation and improvement of a building's robustness require taking into account all the main resistance mechanisms, employing realistic failure criteria and obtaining quantitative results based on a suitable level of structural idealisation. The Imperial College London method has made significant progress t…
Fabrication of nanocrystalline SnO₂ using electron stimulated oxidation was investigated by in situ transmission electron microscopy. SnO₂ nanocrystals ranging from several to dozens of nanometers were transformed from single crystalline tin under 200 keV electron irradiation. This process includes crystallization of…
Crystal growth, structure determination, and magnetic properties of LnCr2Al(20-x)Fe(x) (Ln = La, Gd, Yb) adopting the CeCr2Al20 structure type with space group Fd3m, a ∼ 14.5 Å, are reported. Single crystal X-ray diffraction and Mössbauer spectroscopy are employed to fully characterize the crystal structure of LnCr2Al…
We describe the draft genome sequence of Pseudomonas putida strain LS46, a novel isolate that synthesizes medium-chain-length polyhydroxyalkanoates. The draft genome of P. putida LS46 consists of approximately 5.86 million bp, with a G+C content of 61.69%. A total of 5,316 annotated genes and 5,219 coding sequences (C…
A combination of Metropolis and modified Wolff cluster algorithms is used to examine the impact of uniaxial single-ion anisotropy on the phase transition to ferromagnetic order of Heisenberg macrospins on a 2D square lattice. This forms the basis of a model for granular perpendicular recording media where macrospins r…
Several NASA rovers and landers have been on Mars and performed successful in-situ exploration. Returning Martian samples to Earth for extensive analysis is of great interest to the planetary science community. Current Mars sample return architecture would require leaving the acquired samples on Mars for years before…
ABSTRACT Polymethyl methacrylate (PMMA)/Fe(IO3)3 nanocomposite thin films are obtained by in situ particle generation in microemulsions and subsequent photopolymerization of a mixture containing methyl methacrylate, trimethylolpropane triacrylate, and crystallized iron iodate (Fe(IO3)3) nanorods. Hyper‐Rayleigh scatte…
Mature HIV-1 viral particles assemble as a fullerene configuration comprising p24 capsid hexamers, pentamers and dimers. In this paper, we report the X-ray crystal structures of the p24 protein from natural HIV-1 strain (BMJ4) in complex with Fab A10F9, which recognizes a conserved epitope in the C-terminal domain of…
The use of carbon nanotubes (CNTs) in radio frequency identification (RFID) applications offers a very large range of possibilities to exploit the incredible properties of CNTs. However, due to their entanglement state, their size and the different interacting forces between nanotubes bundles present at nanometric sca…
Pipelines transporting crude oil, produced water and gas from an onshore oil producing facility in Nigeria are subject to frequent corrosion failures despite treatment programs with chlorine (0.5mg L -1 ) and sodium azide (0.2 mg L -1 ). Solid deposit samples from 6 corroded pipelines were analyzed chemically and biol…
The tumour-derived monoclonal IgM antibody PAT-SM6 specifically kills malignant cells by an apoptotic mechanism linked to the excessive uptake of plasma lipids. The mechanism is postulated to occur via the multi-point attachment of PAT-SM6 to the unfolded protein response regulator GRP78, located on the surface of tum…
By shifting the rotational axis of the recording film and recording the individual image-plane holograms in reversed sequence with the real-image holographic system [Opt. Express 18, 14012 (2010)], the disk-type multiplex hologram can be made to generate virtual image for walk-around viewing if the recording reference…
Oxygen functionalized epitaxial graphene (OFEG) sensors are demonstrated toward the sensing of polar chemical vapors at room temperature. The electrical characteristics of the sensor show an increase in resistance upon exposure to polar protic chemicals while the resistance decreased for polar aprotic vapors The avera…
We examine the real-time photoinduced dynamics of a junction composed of the interacting electron systems and propose a path to enhance the solar-cell efficiency using $\mathit{multiplication}$ of electron-hole pairs caused by the electron interaction. The key ingredients for the multiplication are instability and/or…
A multiferroic sample of La 1.5 Sr 0.5 NiO 4+ δ was prepared by conventional solid-state reaction. X-ray diffraction study revealed La 1.5 Sr 0.5 NiO 4+ δ exhibiting a single phase with a tetragonal structure (F 4 K 2 Ni-perovskite-type structure, and space group of I 4/ mmm ). An iodometric titration method was used…
A curvature sensor based on flexoelectricity using Ba0.64Sr0.36TiO3 (BST) material is proposed and developed in this paper. The working principle of the sensor is based on the flexoelectricity, exhibiting coupling between mechanical strain gradient and electric polarization. A BST curvature sensor is lab prepared usin…