Materials Literature
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Combining the quantum optical properties of single-photon emitters with the strong near-field interactions available in nanophotonic and plasmonic systems is a powerful way of creating quantum manipulation and metrological functionalities. The ability to actively and dynamically modulate emitter-environment interactio…
Abstract In this paper, the growth of orthorhombic and monoclinic (Al x Ga1 − x )2O3 thin films on (00.1) Al2O3 by tin-assisted pulsed laser deposition is investigated as a function of oxygen pressure p(O2) and substrate temperature T g . For certain growth conditions, defined by T g ≥ 580°C and p(O2) ≤ 0.016 mbar, th…
A facile and versatile route to fabricate photoluminescent and robust superhydrophobic dual-functional paper was reported. The approach was based on lanthanide-based nanocrystal/nanotitania-doped cellulose fibers with a well-defined micro–nanohierarchical microstructure. Specifically, the cellulose fibers were first t…
Thermoelectric (TE) materials have gathered much attention due to their ability to harvest waste heat energy. To fulfill the goal of sufficient efficiency conversion two important parameters are required (1) low thermal conductivity and (2) high power factor (PF). Two dimensional (2D) hexagonal boron nitride (h-BN) is…
Abstract In this study, we report antibacterial activity of metalloporphyrins; 5, 10, 15, 20-tetrakis ( para -X phenyl)porphyrinato M (II) [where X = H, NH 2 and COOMe for M = Cu and X = COOH and OMe for M = Co]. The activity study of the as-synthesized metalloporphyrins toward two Gram-positive ( S. aureus and S. pyo…
Human adipose-derived stem cell spheroids have been widely used in the treatment or regeneration of damaged skin tissues, and their success is believed to be due in part to angiogenic factors released from the spheroids. To achieve the sustained release of bioactive components from implanted spheroids within a defecti…
Standardized experimental approaches for the quantification of the bioaccumulation potential of nanomaterials in general and in (benthic) invertebrates in particular are currently lacking. We examined the suitability of the benthic freshwater amphipod Hyalella azteca for the examination of the bioaccumulation potentia…
Three novel Zr-substituted polyoxotungstate aggregates [H 2 N(CH 3 ) 2 ] 7 NaH 2 [Zr 2 Sb 2 O 3 ( A -α-PW 9 O 34 ) 2 ]·16H 2 O ( 1 ), [H 2 N(CH 3 ) 2 ] 6 H 12 [ZrSb 4 (OH)O 2 ( A -α-PW 8 O 32 )( A -α-PW 9 O 34 )] 2 ·33H 2 O ( 2 ), and [H 2 N(CH 3 ) 2 ] 4 Na 11.5 H 4.5 [Zr 4 W 8 Sb 4 P 5 O 49 (OH) 5 ( B -α-SbW 9 O 33 )…
Materials with specific wettability properties have aroused enormous interest and research for their broad application prospects in chemical reaction, medical diagnosis, biological analysis, etc. Here, inspired by the unique Janus wettability of lotus leaf and Bragg stacks of beetles, we present a free-standing film w…
Coding metasurfaces are two‐dimensional digital metamaterials with unique capability of field programming. For example, the electromagnetic (EM) waves can be flexibly and digitally manipulated in spatial and time domains. However, most of previous coding metasurfaces are presented to control the incident EM waves. Her…
An efficient approach to obtain high shielding effectiveness (SE) in transparent shielding in an optical window field is proposed and demonstrated by fabricating an embedded double-layer metallic mesh (DLMM) comprised of randomly structured Ni meshes on both sides of a flexible substrate, employing a facile and low-co…
Poly caprolactone (PCL) and Poly caprolactone/TiO2 (PCL/TiO2) composite nanofiber with different weight percentage compositions (2 wt%, 4 wt% and 6 wt%) of TiO2 were prepared and coated over AM50 alloy using electrospinning technique. The surface morphology and elemental composition result confirms that the PCL/TiO2 c…
Vapor compression technologies widely used for refrigeration, heating, and air-conditioning have consumed a large fraction of global energy. Efforts have been made to improve the efficiency to save the energy, and to search for new refrigerants to take the place of the ones with high global warming potentials. The sol…
Engineering useful mechanical properties into stimuli-responsive soft materials without compromising their responsiveness is, in many cases, an unresolved challenge. For example, polymer networks formed within blue-phase liquid crystals (BPs) have been shown to form mechanically robust films, but the impact of polymer…
Abstract At present, most flame retardants, especially halogenated compounds, are banned because of concern for environmental and health issues. In prospect of developing more ecofriendly and effective flame retardants, an alternative solution to develop novel biobased and inorganic flame retardants is addressed. Here…
Two-dimensional (2D) alloys represent a versatile platform that extends the properties of atomically thin transition-metal dichalcogenides. Here, using molecular beam epitaxy, we investigate the growth of 2D vanadium-molybdenum diselenide alloys, V x Mo 1– x Se 2, on highly oriented pyrolytic graphite and unveil their…
Finding alternatives to gadolinium (Gd)-based contrast agents (CA) with the same or even better paramagnetic properties is crucial to overcome their established toxicity. Herein we describe the synthesis and characterization of entirely organic metal-free paramagnetic macromolecules based on biocompatible oligoethylen…
Fluorescent metallosupramolecules have received considerable attention due to their precisely controlled dimensions as well as the tunable photophysical and photochemical properties. However, phosphorescent analogues are still rare and limited to small structures with low-temperature phosphorescence. Herein, we report…
Two-dimensional MXenes continue to receive much research attention owing to their versatility and predicted topological phase, which are yet to be fully explored. Here, we conduct a rigorous search on ${M}_{2}^{\ensuremath{'}}{M}^{\ensuremath{''}}{\mathrm{C}}_{2}$ $({M}^{\ensuremath{'}}=\mathrm{V}, \mathrm{Nb}, \mathr…
Charge excitations across an electronic band gap play an important role in opto-electronics and light harvesting. In contrast to conventional semiconductors, studies of above-band-gap photoexcitations in strongly correlated materials are still in their infancy. Here we reveal the ultrafast dynamics controlled by Hund'…