Materials Literature
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Interfaces and stress transfer between cellulose nanocrystals (CNCs) dictate the mechanical properties of hierarchical cellulose materials such as neat films and nanocomposites. An interesting question that remains is how the behavior of these interfaces changes due to environmental stimuli, most notably moisture. We…
and small ring structures. This occurrence of hydrolysis (and thus formation of P-OH groups, which can be deprotonated) caused the pH decrease and explains the variation in solution pH with structure.
Magnetostructural transitions from low-temperature TiNiSi-type phases to high-temperature Ni2In-type phases had been observed in some MnCoGe-based and MnNiGe-based intermetallic systems. In this work, the TiNiSi-to-Ni2In-type magnetostructural transitions, which are associated with large changes in magnetization and l…
Lead-free (Na0.52K0.48)(Nb1−ySby)O3 (NKNSy) ferroelectric ceramics were reported to exhibit an ultrahigh electrostrain (dynamic d33* (=S/E) of 800–1100 pm/V) in a relatively low driving electric field range (1–4 kV/mm). As evidenced by in-situ synchrotron x-ray diffraction and dielectric measurements, the mechanism of…
A fluorescent C-dots/Fe 3+ nanosensor with an off–on switch was established for ascorbic acid detection.
This study evaluates the influence of hybridization on the flammability, thermal, dynamic mechanical and impact properties of bamboo–glass hybrid polypropylene composites. Flammability tests using cone calorimetry show that the hybrid composites performed better than the glass–polypropylene (GPP) composites, exhibitin…
Dual endosomal pH-sensitive micelles were designed and fabricated to deliver doxorubicin (DOX) for treating breast cancer based on a poly(2-ethyl-2-oxazoline) (PEOz)-DOX (PEOz-hyd-DOX) conjugate. PEOz-hyd-DOX was successfully synthesized by connecting DOX to PEOz via an acid cleavable hydrazone linker and self-assembl…
We have manufactured a highly conductive and stretchable composite by backfilling the 3D graphene-PEDOT:PSS skeleton with poly(dimethylsiloxane) (PDMS). The electrical conductivity of our product can reach 24 S cm(-1) with only 1.5 wt% graphene and 1.5 wt% PEDOT:PSS loading, and its resistance increased only 35% when…
Excessive uptake of NO2(-) is detrimental to human health, but the currently available methods used to sensitively detect this ion in the environment are cumbersome and expensive. In this study, we developed an improved NO2(-) detection system based on a redox etching strategy of CTAB-stabilized Ag-Au core-shell nanop…
The phase transition between gamma-trititanium-pentoxide (γ-Ti 3 O 5 ) and delta-trititanium-pentoxide (δ-Ti 3 O 5 ) was clarified from both experimental and theoretical viewpoints. With decreasing temperature, the monoclinic I 2/ c crystal structure of γ-Ti 3 O 5 was found to switch to a monoclinic P 2/ a crystal str…
We investigate the antibacterial effect of ultrafine nanodiamond particles with an average size of 5 nm against the gram-negative bacteria Escherichia coli (E. coli). UV-visible, Raman spectroscopy, and scanning electron microscopy (SEM) have been employed to elucidate the nature of the interaction. The influence on b…
We report high performance IR photocurrent response of two-dimensional hybrid materials consisting of layered WS2 nanosheets and reduced graphene oxide (RGO). Comparative photocurrent response studies of WS2 nanosheets, RGO, and WS2/RGO hybrids were carried out by performing current-voltage (I-V) and time-dependent cu…
Generation 5 (G5) poly(amidoamide) (PAMAM) dendrimers are synthetic polymers that have been broadly applied as drug delivery carriers. Methotrexate (MTX), an anti-folate metabolite, has been successfully used as an anti-inflammatory drug to treat rheumatoid arthritis (RA) in the clinic. In this study, we examine the t…
Growth of large-scale patterned, wrinkle-free graphene and the gentle transfer technique without further damage are most important requirements for the practical use of graphene. Here we report the growth of wrinkle-free, strictly uniform monolayer graphene films by chemical vapor deposition on a platinum (Pt) substra…
Monometallic Ni(2+) -Ni(3+) layered double hydroxide (LDH) is prepared using a simple oxidative intercalation process and may be further exfoliated into positively charged Ni(OH)2 unilamellar sheets. The superior capacitive behavior of the unilamellar sheets stranded in carbon nanotubes (CNTs) networks is achieved bec…
The aim of this study was to develop novel biomedicated electrospun nanofibers for controlled release. Pre-formulation studies were carried out for nanofibers of sodium alginate (SA) (2 wt %)/polyvinyl alcohol (PVA) (10 wt %) composites (2/8, 3/7 and 4/6), by an electrospinning technique. The morphology and average di…
Noble metal nanoparticles have unique localized surface plasmon resonance (LSPR), leading to their strong absorption and scattering in the visible light range. Up to date, the common practice in the selection of nanoparticles for a specific application is still based on the measured extinction spectra. This practice m…
Hexagonal (h-WO3) mesocrystals with biconical morphology were prepared by a straightforward ionic liquid-assisted hydrothermal route and investigated as anodic materials for lithium-ion batteries. Compared to the alternatives, the biconical tungsten trioxide mesocrystal exhibited excellent lithium insertion with good…
Light reflection at the boundary of two different media is one of the fundamental phenomena in optics, and reduction of reflection is highly desirable in many optical systems. Traditionally, optical antireflection has been accomplished using single- or multiple-layer dielectric films and graded index surface structure…
Fabrication of well-aligned one-dimensional (1D) nanostrucutres is critically important and highly desired since it is the key step to realize the patterned arrays to be used as the display units. In the present work, we report the large-scale and well-aligned growth of n-type SiC nanowire arrays on the 6H-SiC wafer s…