Materials Literature
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The use of edible antimicrobial films has been reported as a means to improve food shelf life through gradual releasing of antimicrobial compounds on the food surface. This work reports the study on the incorporation of 2 antimicrobial agents, nisin (N), and/or glucose oxidase (GO), into the matrix of Whey protein iso…
Thermally stable/high-performance polymers are able to provide long-term service at elevated temperatures. The development of different thermally stable polymers is continued due to the large requirement of high-temperature polymers. Polyimides (PI) and their copolyimides are well-established class of high-performance…
A water-soluble dendron with a fluorescein isothiocyanate (FITC) fluorescent label and bearing nine pendant guanidinium ion (Gu(+))/benzophenone (BP) pairs at its periphery (Glue(BP)-FITC) serves as a "photoclickable molecular glue". By multivalent salt-bridge formation between Gu(+) ions and oxyanions, Glue(BP)-FITC…
The reaction of Cerium Ammonium Nitrate (CAN) with varying amounts of KO(t)Bu produced homometallic Ce(O(t)Bu)4(NC5H5)2 (1) and the heterometallic derivative KCe2(O(t)Bu)10 (3) characterized by X-ray diffraction and NMR spectroscopy. The oxo-alkoxide cluster Ce3O(O(t)Bu)9 (2) was obtained from a solution of cerium(IV)…
A competition of incommensurate symmetries occurs whenever a system is forced to conform to an ordering that is different from the intrinsically preferred structure of the system itself. As a model system of such a competition, we study the rivalry between the triangular ordering of hard disks and the square symmetry…
Crustacean calcium bodies are epithelial sacs which contain a mineralized matrix. The objectives of this study were to describe the microscopic anatomy of calcium bodies in the terrestrial isopod Hyloniscus riparius and to establish whether they undergo molt-related structural changes. We performed 3D reconstruction o…
We explore theoretically the spin transport in nanostructures consisting of a gold quantum dot bridging nonmagnetic electrodes and two Mn${}_{12}$-Ph single molecule magnets (SMMs) that are thiol bonded to the dot but are not in direct contact with the electrodes. We find that reversal of the magnetic moment of either…
High yields of the ethoxo-α-aminoacidates of the general formula M(OEt)4[OC(O)CHRNHR'-κO,κN] (M = Nb, R = CH2Ph, R' = H, 2; R = CHMe2, R' = H, 3; R = CH2CHMe2, R' = H, 4; R = H, R' = Me, 5; R = CH2CH2SMe, R' = H, 6; M = Ta, R = CH2Ph, R' = H, 7; R = CH2CH2SMe, R' = H, 8) and M(OEt)4(OC(O)CH(CH2CH2CH2)NH-κO,κN) (M = Nb…
Dimethyl sulfoxide (DMSO) is till now a widely used cryoprotective agent for cryopreservation of cells. Since high concentrations of DMSO have detrimental effects on cell functioning the aim of this study is to reduce the DMSO concentration by using compatible solutes (CS). These are small organic osmolytes that micro…
An assembly strategy is reported such that segmented nanorods fabricated through template-assisted methods can be robustly transferred and tethered to a pre-functionalized substrate with excellent uniformity over large surface areas. After embedding the rods, sacrificial nickel segments were selectively etched leaving…
$AA$-stacked bilayer graphene supports Fermi circles in its bonding and antibonding bands, which coincide exactly, leading to symmetry breaking in the presence of electron-electron interactions. We analyze a continuum model of this system in the Hartree-Fock approximation, using a self-consistently screened interactio…
Mussel adhesives function as tools for surface modifications of a wide variety of materials due to their remarkable adhesion properties. Herein, a combination of bioinspired mussel adhesives based on a dopamine derivative, polymer chemistry, and well-established Diels-Alder (DA) chemistry leads to a bioinspired switch…
A modified chemical route via the layer-by-layer alternative deposition of BaTiO3 and BiFeO3 two compositions followed by the solution processing has been developed to prepare Ba and Ti co-doped multiferroic BiFeO3 thin films. The Ba and Ti co-doped BiFeO3 films crystallize in single perovskite phase and are composed…
Increasing attention has recently been paid to the fabrication of drug delivery systems with excellent cell internalization and intracellular drug release properties. In this study, an amphiphilic block copolymer of chitosan was synthesized for the first time, which can self-assemble into micelles in a neutral aqueous…
A disulfide-crosslinked hydrogel made from ultrasmall peptides is introduced. Crosslinked gels are more elastic and better able to maintain shape integrity. Using facile chemistry, RGD (or other bioactive signals) can be conjugated onto the peptide fibers. Gels formed are biocompatible and support the three-dimensiona…
Over the past two decades, fluorescent quantum dots (QDs) have been highly attractive for a myriad of bioapplications due to their unique optical properties. For bioimaging applications, QD-based in vivo specific tumour targeting is vitally important in the biological and biomedical fields. Aqueous synthesized QDs (aq…
We report a structural and magnetization study of the Heusler compound Fe2MnGa. The sample shows a single cubic phase with a large Curie temperature (TC) of 750 K. The sample undergoes a disorder induced first-order ferromagnetic (FM) to antiferromagnetic (AFM) transition around the room temperature. This transition r…
Nanoparticles (NPs) modified with fluorescent cyanine dyes can exhibit fluorescent quenching properties due to energy and/or electron transfer, and these systems have many applications in catalysis, drug delivery, nanoelectronics, medical diagnostics, and chemical sensing. The aim of this work was to investigate the a…
An unusual zero-moment half-metallic state has been predicted in stoichiometric Heusler compounds with 24 valence electrons, where, unlike an antiferromagnet, the two sublattices are chemically or crystallographically inequivalent. We have examined the following candidate materials: Cr2FeGe, Cr2CoGa, Fe2VGa, and Mn3Ga…
When dipolar gases are condensed at sufficiently low temperature onto a solid surface, they form films that may spontaneously exhibit electric fields in excess of 108 V/m. This effect, called the ‘spontelectric effect’, was recently revealed using an instrument designed to measure scattering and capture of low energy…