Materials Literature
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Abstract Lead‐free piezoceramics with the composition (1−x)(K 1− y N a y )NbO 3 ‐x(Bi 1/2 Na 1/2 )ZrO 3 ( KN yN‐ xBNZ ) were prepared using a conventional solid‐state route. X‐ray diffraction, Raman spectroscopy, and dielectric measurements as a function of temperature indicated the coexistence of rhombohedral (R) and…
Herein, three kinds of viologens-based electrochromic devices (ECDs) (heptyl viologen (HV(BF 4 ) 2 ), octyl viologen (OV(BF 4 ) 2 ), and nonyl viologen (NV(BF 4 ) 2 )) were fabricated utilizing ferrocene (Fc) as a redox mediator. Among them, the NV(BF 4 ) 2 -based ECD exhibits the highest coloration efficiency (36.2 c…
Metal-exchanged CHA-type (SAPO-34 and SSZ-13) zeolites are promising catalysts for selective catalytic reduction (SCR) of NO x by NH 3 . However, an understanding of the process at the molecular level is still limited, which hinders the identification of its mechanism and the design of more efficient zeolite catalysts…
Combination therapy of multiple drugs through a single system is exhibiting high therapeutic effects. We investigate nanocarrier mediated inhibitory effects of topotecan (TPT) and quercetin (QT) on triple negative breast cancer (TNBC) (MDA-MB-231) and multi drug resistant (MDR) type breast cancer cells (MCF-7) with re…
The Protein Data Bank Japan (PDBj, http://pdbj.org), a member of the worldwide Protein Data Bank (wwPDB), accepts and processes the deposited data of experimentally determined macromolecular structures. While maintaining the archive in collaboration with other wwPDB partners, PDBj also provides a wide range of service…
Asymmetric supercapacitors (ASCs) with aqueous electrolyte medium have recently become the focus of increasing research. For high performance ASCs, selection of cathode materials play a crucial role, and core–shell nanostructures are found to be a good choice. We successfully synthesized, ZnO@MnO 2 core–shell nanofibe…
All-aqueous emulsions exploit spontaneous liquid-liquid separation and due to their water-based nature are particular advantageous for the biocompatible storage and processing of biomacromolecules. However, the ultralow interfacial tensions characteristic of all-aqueous interfaces represent an inherent limitation to t…
Since 1969, the European Union approves food-grade titanium dioxide (TiO2), also known as E171 colouring food additive. E171 is a mixture of micro-sized particles (MPs) and nano-sized particles (NPs). Previous studies have indicated adverse effects of oral exposure to E171, i.e. facilitation of colon tumour growth. Th…
Abstract A rapid surge in the research on piezoelectric sensors is occurring with the arrival of the Internet of Things. Single-phase oxide piezoelectric materials with giant piezoelectric voltage coefficient ( g , induced voltage under applied stress) and high Curie temperature ( T c ) are crucial towards providing d…
The significant contribution of conventional living polymerization to polymer science assures that living supramolecular polymerization will also lead to a variety of novel phenomena and applications. However, the monomer scope still remains limited in terms of the self-assembly energy landscape; a kinetic trap that r…
Abstract The metal–insulator transition and the intriguing physical properties of rare-earth perovskite nickelates have attracted considerable attention in recent years. Nonetheless, a complete understanding of these materials remains elusive. Here we combine X-ray absorption and resonant inelastic X-ray scattering (R…
Lanthanide-doped nanocrystals are of particular interest for the research community not only due to their ability to shape light by downshifting, quantum cutting, and upconversion but also because novel optical properties can be found by the precise engineering of core–shell nanocrystals. Because of the large surface…
Temperature is important because it has an effect on even the tiniest elements of daily life and is involved in a broad spectrum of human activities. That is why it is the most commonly measured physical quantity. Traditional temperature measurements encounter difficulties when used in some emerging technologies and e…
ABSTRACT Marine mussels secret protein‐based adhesives, which enable them to anchor to various surfaces in a saline, intertidal zone. Mussel foot proteins (Mfps) contain a large abundance of a unique, catecholic amino acid, Dopa, in their protein sequences. Catechol offers robust and durable adhesion to various substr…
The zircon polymorph of GdCrO4 has a large magnetocaloric effect over a wide temperature range, with |ΔST| > 20 J/kg·K from 6 K to 34 K, for a magnetic field of 9 T. This unusual behaviour is very interesting on magnetic refrigeration applications, for liquefying H2 or natural gas. The mean-field approach explains tha…
A 3-dimensional rippled nanoshell structure (a hollow pillar with wriggly sidewall morphology) is demonstrated for superhydrophobicity. As a control group, a straight nanoshell structure without a rippled shape was also prepared. The rippled structure showed improved superhydrophobicity with a large contact angle and…
Non-marine epilithic diatom communities of two major Maltese islands, Malta & Gozo, were investigated for the first time. Fourty four samples were collected from eleven stations, which represented different springs and spring-fed streams distributed over the two islands. Extraction of diatoms and preparation of clean…
X-ray diffraction measurement at 298 K of CdMoO 4 :Dy 3+ showed that the molybdenum ions are tetrahedral coordinated and Cd/Dy – dodecahedral coordinated. The Dy 3+ ions are randomly distributed in the unit cell, substituting the Cd 2+ ones. The temperature dependence of ac and dc magnetic susceptibility showed a lack…
Light propagation algorithms in the spatial domain hold an implicit assumption that the calculation region represents a virtual aperture, i.e., the amplitude outside of the calculation region is zero. With typically bright objects on a dark background, this assumption is legitimate and the calculation is correct. With…
In this work, we first present the composition dependence of the magnetocaloric properties in the Y 2 Fe 17-x Co x series.Then, we show preliminary results on our shaping works. In order to use the Y 2 Fe 17-x Co x compounds in magnetocaloric heat conversion systems, we applied powder metallurgy technics at a semi ind…