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Vanadium oxide (VOx) nanorods are uniformly synthesized on dense Si nanowire arrays. This 3D hierarchical nanoarchitecture offers a novel high‐performance supercapacitor electrode design with significantly improved specific capacitance and high‐rate capability.
Amino acid‐based poly(ester amide)s are a new family of biodegradable polymers that exhibit “pseudo‐protein” characteristics and the structural varieties of poly(ester amide)s make them hold great potential in multiple biomedical applications. In this study, a lysine‐phenylalanine‐based pseudo‐protein is developed as the self‐assembled nanomicellar carrier for efficient delivery of doxorubicin. The...
Liquid‐phase transmission electron microscopy (TEM) is used for in‐situ imaging of nanoscale processes taking place in liquid, such as the evolution of nanoparticles during synthesis or structural changes of nanomaterials in liquid environment. Here, it is shown that the focused electron beam of scanning TEM (STEM) brings about the dissolution of silica nanoparticles in water by a gradual reduction...
Antiamyloidogenic agents have promising application potential in AD therapies. In article number 1602857, L. Zhu, Z. Hu, Y. Yang, and co‐workers present an Aβ42‐binding agent amyloid inhibitory 1 (AIP1), demonstrate its inhibitory effect on Aβ42 oligomerization and fibrillation, and show that AIP1 rescue Aβ42‐induced cytotoxicity through decreasing Aβ42 oligomer content is related to cell membrane...
A unique composite of the copper‐based metal–organic framework (Cu‐benzene tricarboxylic acid (BTC)) with oxidized graphitic carbon nitride nanospheres is synthesized. For comparison, a hybrid material consisting of g‐C3N4 and Cu‐BTC is also obtained. Their surface features are analyzed using Fourier transform infrared spectroscopy, X‐ray diffraction, sorption of nitrogen, thermal analysis, scanning...
In recent years, optical chirality of plasmonic nanostructures has aroused great interest because of innovative fundamental understanding as well as promising potential applications in optics, catalysis and sensing. Herein, state‐of‐the‐art studies on circular dichroism (CD) characteristics of plasmonic nanostructures are summarized. The hybrid of achiral plasmonic nanoparticles (NPs) and chiral molecules...
Studies on human norovirus are severely hampered by the absence of a cell culture system until the discovery of murine norovirus (MNV). The cell membrane domains called lipid rafts have been defined as a port of entry for viruses. This study is conducted to investigate murine norovirus binding on the mouse leukemic monocyte macrophage cell line. Lipid raft related structures are extracted from cells...
Defects in bulk crystals can be classified into vacancies, interstitials, grain boundaries, stacking faults, dislocations, and so forth. In particular, the vacancy in semiconductors is a primary defect that governs electrical transport. Concentration of vacancies depends mainly on the growth conditions. Individual vacancies instead of aggregated vacancies are usually energetically more favorable at...
Silicon is used as a prominent case to demonstrate the dramatic effects of helium ion microscope nanofabrication. Structurally, a submicrometer Si pillar can turn completely amorphous at He+ doses typically used for micromachining, forming nanobubbles at higher doses. In terms of mechanical properties, the flow stress decreases markedly with increasing dosage, and the softened amorphous Si exhibits...
In article number 1601710, W.‐G. Wu and co‐workers present plasmonic nanopin‐metasurfaces that are capable of producing a structural color appearance in reflection mode. Benefiting from the strong optical field confinement of plasmonic nanopin‐cavity resonators, these metasurfaces functionalized with biomolecules can operate as highly sensitive optical colorimetric sensing devices.
Solution‐processed organic single crystals with high carrier mobility have been actively investigated for diverse applications such as displays, sensors, and next generation electronics on a flexible platform. However, the lack of precise alignment and growth control of organic single crystals impedes the widespread adoption of organic materials in an industrial perspective. Here, a photochemical...
The oligomerization and aggregation of amyloid β (Aβ) play central role in the pathogenesis of Alzheimer's disease (AD). Molecular binding agents for modulating the formation of Aβ oligomers and fibrils have promising application potential in AD therapies. By screening a peptoid library using surface plasmon resonance imaging, amyloid inhibitory peptoid 1 (AIP1) that has high affinity to Aβ42 is identified...
Computer simulations are used to design more hydrated bilayers, formed from amine‐modified porphyrin‐phospholipids (PoPs). Experiments confirm that the new constructs give rise to bilayers with greater water content. When chelated with manganese, amine‐modified PoPs provide improved contrast for magnetic resonance and are safely used for imaging in vivo.
As potential photovoltaic materials, transition‐metal oxides such as BiFeO3 (BFO) are capable of absorbing a substantial portion of solar light and incorporating ferroic orders into solar cells with enhanced performance. But the photovoltaic application of BFO has been hindered by low energy‐conversion efficiency due to poor carrier transport and collection. In this work, a new approach of utilizing...
An optical nanothermometer technique based on laser trapping, moving and targeted attaching an erbium oxide nanoparticle cluster is developed to measure the local temperature. The authors apply this new nanoscale temperature measuring technique (limited by the size of the nanoparticles) to measure the temperature of vapor nucleation in water. Vapor nucleation is observed after superheating water above...
The significance of bionanomotors in nanotechnology is analogous to mechanical motors in daily life. Here the principle and approach for designing and constructing biomimetic nanomotors with continuous single‐directional motion are reported. This bionanomotor is composed of a dodecameric protein channel, a six‐pRNA ring, and an ATPase hexamer. Based on recent elucidations of the one‐way revolving...
In view of the toxic potential of a bioweapon threat, rapid visual recognition and sensing of ricin has been of considerable interest while remaining a challenging task up to date. In this study, a gold nanopin‐based colorimetric sensor is developed realizing a multicolor variation for ricin qualitative recognition and analysis. It is revealed that such plasmonic metasurfaces based on nanopin‐cavity...
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