Materials Literature
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Aminated polyacrylonitrile(APAN) nanofiber mat was a surface modification of electrospun polyacrylonitrile (e-spun PAN) with diethylenetriamine (DETA). It was developed for the removal of Ag(I), Cu(II), Pb(II) and Fe(II) from aqueous solution. The results showed that adsorbent has the highest adsorption capacity for A…
Nature provides a multitude of nanostructures that have been finely tuned by natural selection and produce structural colourations that play a role in many biological functions such as mating, signalling or camouflage. A recurring design that is found both in the animal and plant kingdoms is the helicoidal structure,…
In this work, nanocrystalline MgO particles were prepared through combustion method using magnesium nitrate as oxidizer and hexamine as a fuel. The materials obtained by combustion method were subsequently annealed at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:msup><mml:mrow><mml:mn fontstyle…
Layered materials, such as layered sodium silicates and layered double hydroxides (LDHs), are well-known for their remarkable adsorption, intercalation and swelling properties. Their tunable interlayers offer an interesting avenue for the fabrication of pillared nanoporous materials, organic-inorganic hybrid materials…
The chitin was isolated from the Ganoderma lucidum submerged cultures mycelium as potential source of chitin under biotechnological processes. The extraction of chitin was carried out through 5 different assays which involved mainly three phases: pulverization of the mushroom, deproteinization of the mycelia with NaOH…
This paper presents the study of the tensile, compressive, flexural, impact energy and water absorption characteristics of the luffa fiber and Ground nut reinforced epoxy polymer hybrid composites. Luffa fiber and Ground nut reinforced epoxy resin matrix composites have been developed by hand lay-up technique with luf…
The oxidation of CO has attracted great interest in recent years because of its important role in enhancing the catalyst durability in fuel cells and in solving the growing environmental problems caused by CO emission. The usually used noble metal nanocatalysts are costly and require high reaction temperature for effi…
Hierarchical nanoscale multi-shell Au/CeO <sub>2</sub> hollow spheres with interconnected nanochambers and high catalytic activity were synthesized using a controllable approach.
We show numerically that the response of simple amorphous solids (elastic networks and particle packings) to a local force dipole is characterized by a lengthscale lc that diverges as unjamming is approached as lc ∼ (z - 2d)(-1/2), where z ≥ 2d is the mean coordination, and d is the spatial dimension, at odds with pre…
This article reviews the most recent literature data on the applications of gold nanoparticles and their various conjugates which make them suitable structures towards biomedical and clinical purposes, with an emphasis on their use as drug delivery vehicles for selective targeting of cancer cells. With the rapid surge…
The controllable self-assembly of amphiphilic mixed polymers grafted gold nanoparitcles (AuNPs) leads to strong interparticle plasmonic coupling, which can be tuned to the near-infrared (NIR) region for enhanced photothermal therapy (PTT). In this study, an improved thiolation method was adopted for ATRP and ROP polym…
The main advantage for applications of graphene and related 2D materials is that they can be produced on large scales by liquid phase exfoliation. The exfoliation process shall be considered as a particular fragmentation process, where the 2D character of the exfoliated objects will influence significantly fragmentati…
Optical properties of pure and doped poly(vinyl chloride) (PVC) films, prepared by using casting technique, with different nanosize zinc oxide (ZnO) concentrations (1–20) wt% have been studied. Parameters such as extinction coefficient, refractive index, real and imaginary parts, Urbach energy, optical conductivity, i…
This review focuses on the various synthetic approaches to upconversion nanocrystals and recent developments in the photovoltaic applications of upconversion nanomaterials.
An effective de-fluorination method is developed to modify CF <sub>x</sub> cathodes through a hydrothermal process and it greatly improves the capacity performance and rate capability of CF <sub>x</sub> by removal of surface ionic transport barriers. A capacity of 500 mA h g <sup>−1</sup> and a maximum power density o…
Electrospun fibrous membranes coated with basic fibroblast growth factor (bFGF) are effective medical devices to promote wound healing. However, the current strategies of adding bFGF generally cause degradation of electrospun materials or damage to the bioactivity of the biomolecules. Here, we have developed a simple…
The number of ferrous and ferric pairs in adjacent octahedral sites determines the real part of permittivity. The cobalt ratio in mixed spinels determines the crystallinity or number of defects, and ultimately the imaginary part of permittivity. At a high synthesis or calcination temperature, some cobaltous and ferrou…
A facile hydrothermal reduction of self-assembled 3D graphene oxide (GO) is reported. A binder-free flexible supercapacitor is fabricated using the 3D graphene made in house, which exhibits high gravimetric capacitance (up to 220 F g−1) and excellent cycle stability with >80% capacitance retention over 10 000 cycles u…
A simple hydrothermal route was developed for the synthesis of uniform α-MnO <sub>2</sub> nanowires. The as-prepared products can be used high performance supercapacitor electrodes and photocatalysts with enhanced photocatalytic activities.
Angle-independent coloured films with superhydrophobicity were fabricated from quasi-amorphous arrays of monodispersed fluorinated silica nanoparticles via one-step spray coating. The film exhibited a high contact angle (>150°) and a low roll-off angle (~2°) and the colour could be tuned to blue, green and moccasin by…