Materials Literature
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We demonstrate a novel architecture of solar cell by incorporating graphene thin film in a quantum dot sensitized solar cell. Quantum dot sensitized nanorods with a graphene layer exhibited a 54.7% improvement comparing a quantum dot sensitized ZnO nanorods without graphene layer. A fill factor as high as ∼62% was als…
A low temperature electroactive shape-memory material, PU–SWCNT hybrid, was prepared by blending the low molecular weight soft segment polyurethane (PU) with the high conductivity single-walled carbon nanotubes (SWCNTs). The melting points of PU–SWCNT hybrids were changed clearly with the amount of SWCNTs, which were…
New non-conjugated random copolymers containing pendent electron-donating 9-(4-vinylphenyl)carbazole (VPK) and electron-accepting 2-phenyl-5-(4-vinylphenyl)-1,3,4-oxadiazole (OXD) or 2-(4-vinylbiphenyl)-5-(4-phenyl)-1,3,4-oxadiazole (BOXD) were successfully synthesized by nitroxide-mediated free radical polymerization…
SrTiO3 nanocubes were synthesized in aqueous solution with Bis (ammonium lactate) titanium dihydroxide (TALH) as the Ti source under hydrazine-assisted hydrothermal condition. The SrTiO3 nanocubes grew from the Ti-based sol through a dissolution-precipitation process and large cubic particles formed through the orient…
Iron based superconductors sent material scientists into a renewed excitement reminiscent of the time when the first high-Tc superconductors were discovered 25 years ago. This feature article reviews relationships between structural chemistry and magnetic as well as superconducting properties of iron arsenide compound…
We have established a new strategy to produce functional organic nanotubes of controlled structure from cyclic peptide/polymer conjugates. The structure guiding cyclic peptide motif was coupled to the polymeric chains viacopper-catalyzed azide–alkyne click reaction, to yield very well-defined conjugates. The resulting…
We proposed a good calcinations condition of the ZnO disk to control the crystallography and nanoparticles in ZnO disk. The crystallography of precursor powder and disk powder were analyzed by the X-ray diffraction (XRD). The mean nanoparticles of ZnO disk was determinate by XRD results and observed by scanning electr…
Polypropylene was successfully covalently grafted onto the surface of thermally reduced graphite oxide (PP-g-TRGO) by taking advantage of the "residual oxygen-containing functional groups" and the "grafting to" method. The PP-g-TRGO obtained showed an improved compatibility, and interfacial interaction, with an isotac…
At the heart of ‘copying from Nature’ lies the implied assumptions that, firstly, researchers understand what they propose to copy and that, secondly, industrialists have found ways to successfully integrate the many requirements necessary for a reliable bio-mimetic copying process. Here we explore the traits of nativ…
We report here the design of a novel conducting erodible platform based on the water soluble conducting polymer, poly[ammonium(3-thienyl)ethoxypropanesulfonate] (SPT). This study shows for the first time a conducting polymeric system that is electroactive, fully erodible and promotes cell adhesion and growth.
Tetragonal NaEu(MoO4)2 with rugby-like microstructures were successfully synthesized by a hydrothermal method in an EDTA-mediated process. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) techniques were emp…
Poly(ionic liquid)s with well-defined chemical structure were prepared and applied as precursors for nitrogen-doped carbon fibers and membranesvia the electrospinning technique. The nitrogen contents of two prepared carbon membranes were found to be 6.3% and 8.0% respectively. Their electrical conductivity was measure…
We report efficient white upconversion luminescence in Yb(3+)-, Er(3+)- and Tm(3+)-doped monophasic and biphasic Y(2)BaZnO(5) phosphors under 977 nm near-infrared excitation and at low excitation power densities (down to ∼25 mW mm(-2)).
The present work reports the electrochemical and chemical oxidative synthesis of polyaniline using K2Cr2O7 as an oxidant and H2SO4 as dopant. The conductivity studies of electro chemical synthesis of PANI doped with H2SO4 at various voltages are compared with oxidative synthesized PANI. The confirmation of PANI was do…
This work presents a novel method for directly forming highly-oriented Mg–Fe–CO3 LDH coating on pure Mg samples by treating the sample in pH 5.6 aqueous Fe3+/HCO3−/CO32− at 50 °C, and then immersing it in pH 9.5 aqueous HCO3−/CO32− at 50 °C. The former step was performed to yield Mg2+ in aqueous solution at pH 5.6 by…
Over the past years, the layer-by-layer (LbL) assembly has been widely developed as one of the most powerful techniques to prepare multifunctional films with desired functions, structures and morphologies because of its versatility in the process steps in both material and substrate choices. Among various functional n…
The use of carbon nanotubes (CNTs) as transparent conducting films is one of the most promising aspects of CNT-based applications due to their high electrical conductivity, transparency, and flexibility. However, despite many efforts in this field, the conductivity of carbon nanotube network films at high transmittanc…
Novel linear supramolecular polymers, based on the combination of two classical binding interactions: the quadruple hydrogen bonding ureidopyrimidinone units and crown ether-paraquat host-guest recognition motifs, have been constructed from two heteroditopic monomers.
The poor stability of micellar drug delivery systems in vivo due to large volume dilution and interactions with blood pool often leads to premature drug release with low targetability and therapeutic efficacy. Here, we designed folate-conjugated interfacially crosslinked biodegradable micelles consisting of poly(ethyl…
BACKGROUND: Advances in nanotechnology have identified promising candidates for many biological, biomedical and biomedicine applications. They are being increasingly exploited for medical uses and other industrial applications. The aim of the present study was to investigate the effects of administration of gold nanop…