Materials Literature
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This chapter summarises recent progress in investigating dissolution of Ag nanoparticles in aquatic systems and covers an overview of Ag nanoparticle synthesis and mechanisms, thermodynamics and kinetics of Ag nanoparticle dissolution. It summarises a few examples of Ag nanoparticle dissolution kinetic studies demonst…
Recently, nonvolume conserving or non-Joulian magnetostriction has been reported in Fe-Ga alloys [H. D. Chopra and M. Wuttig, Nature (London) 521, 340 (2015); H. D. Chopra and M. Wuttig, Nature (London) 538, 416 (2016)] that increase their volume by expanding in magnetic fields. Here, we report a complementary set of…
Polyion complex (PIC) gel of poly(Pro-Hyp-Gly) was successfully fabricated by simply mixing polyanion and polycation derivatives of poly(Pro-Hyp-Gly), a collagen-like polypeptide. The polyanion, succinylated poly(Pro-Hyp-Gly), and the polycation, arginylated poly(Pro-Hyp-Gly), contain carboxy (pKa = 5.2) and guanidini…
In this paper we discuss issues related to the theoretical as well as the computational format of gradient-extended crystal viscoplasticity. The so-called primal format uses the displacements, the slip of each slip system and the dissipative stresses as the primary unknown fields. An alternative format is coined the s…
Proteins are widely utilized as templates in biomimetic synthesis of gold nanocrystals. However, the role of proteins in mediating the pathways for gold nucleation and growth is not well understood, in part because of the lack of spatial resolution in probing the complicated biomimetic mineralization process. Self-ass…
In this chapter, the authors reports that Silver Nanoparticles (AgNPs) with an initial size of 20 nm increased the cell size of human neutrophils as evidenced by optical microscopy and by flow cytometry based on the cell size forward scattered light (FSC) and the inner complexity or granularity based on the FSC. Sever…
A novel mesoporous MoO2 composite supported on graphene oxide (m-MoO2/GO) has been designed and applied as an efficient epoxidation catalyst. The m-MoO2/GO composite was characterised by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, Brunauer–Emmet–Teller surface area analysis, field emission…
The problem of diffraction by slanted lamellar dielectric and metallic gratings in classical mounting is formulated as an eigenvalue eigenvector problem. The numerical solution is obtained by using the moment method with Legendre polynomials as expansion and test functions, which allows us to enforce in an exact manne…
Digital fabrication methods are reshaping design and manufacturing processes through the adoption of pre-production visualization and analysis tools, which help minimize waste of materials and time. Despite the increasingly widespread use of digital fabrication techniques, comparatively few of these advances have bene…
Abstract Industrially and commercially relevant roll-to-roll atmospheric pressure-plasma enhanced chemical vapour deposition was used to synthesize smooth, 80 nm silica-like bilayer thin films comprising a dense ‘barrier layer’ and comparatively porous ‘buffer layer’ onto a flexible polyethylene 2,6 naphthalate substr…
We demonstrated Graded Cavity Resonator Integrated Grating Filters (G-CRIGFs) that are narrowband spectral reflectors, spectrally tunable over more than 40 nm around 850 nm using a spatial gradient. A simple analytical model is introduced and validated experimentally to determine spectral performance of G-CRIGFs from…
Abstract Metal nanoparticles (MNPs) have received a great deal of attention in both scientific and industrial fields because of their special characteristics originating in the nanostructure. Herein, we developed a new synthesis strategy for MNPs based on the utilization of layered polysilane (Si 6 H 6 ). The special…
Yb and Er codoped NaT(XO4)2 (T = Y, La, Gd, Lu and X = Mo, W) disordered oxides show a green (Er3+ related) up-conversion (UC) efficiency comparable to that of Yb:Er:β-NaYF4 compound and unless 3 times larger UC ratiometric thermal sensitivity. The similar UC efficiency of Yb:Er doped NaT(XO4)2 and β-NaYF4 compounds a…
We describe an innovative and scalable strategy of transforming a commercial unclad sapphire optical fiber to an allalumina nanostructured sapphire optical fiber (NSOF) that overcomes decades-long challenges faced in the field of sapphire fiber optics. The strategy entails fiber coating with metal Al followed by subse…
Here we report the optical property control of Au nano-bridged structures by the single-atom metal layer deposition onto the surface. The deposition and dissolution of the Cu atom layer were performed by the electrochemical under potential deposition method. Through the control of the reversible electrochemical deposi…
In Ba 0.6 Sr 0.4 TiO 3 (BSTO)‐based epitaxial nanocomposite films increased P r values are demonstrated by up to a factor of 3 compared to standard BSTO films. A strongly reduced temperature coefficient of polarization retention is also obtained, i.e., 0.07% °C −1 compared to 0.24% °C −1 . Piezopoling with only margin…
We investigated the structural, vibrational, magnetic, and electronic properties of the recently synthesized CaCo 3 V 4 O 12 double perovskite with the high-spin (HS) Co 2+ ions in a square-planar oxygen coordination at extreme conditions of high pressures and low temperatures. The single-crystal X-ray diffraction and…
A hybrid layered double hydroxides (LDHs)‐reduced graphene oxide (rGO) material has been fabricated by the facile co‐precipitation method. The structural characterization and morphological observation of the composites suggest that small LDH‐rGO crystals are in situ grown on the surface of GO nanosheets, preventing th…
A novel fabrication strategy is introduced for the synthesis of 3D silver–silica hybrid nanostructures by employing the plasma‐enhanced atomic layer deposition (PE‐ALD) on the templated substrates with enzymatically generated silver nanoparticles (EGNPs). Comparing with the conventional PE‐ALD process for the silica d…
Abstract In this work we present in situ preparation of silver nanoparticles (NPs) by reduction of silver nitrate by methyl cellulose (MC). The aim of this study was to prepare a stable solution of MC-Ag, convert it to solid film, redissolve it and determine how this process influences the form and properties of the p…