Graphene oxide shows stress-induced toxicity properties in vivo under different pathophysiological conditions. A dual-path chemical mechanism, involving the overproduction of hydroxyl radicals and formation oxidizing cytochrome c intermediates, is responsible for properties.

Arrays of ZnO/ZnxCd1–xSe (0 ≤ x 1) core/shell nanocables with shells tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects stoichiometry and type II heterojunction, optical absorptions nanocable arrays can be controllably tuned to cover almost entire visible spectrum. Lattice parameters band gaps ternary ZnxCd1–xSe were found respectively linear quadratic relationships Zn content (x). These are further...

Zinc blende-structured CdTe nanoribbons (NRs) were synthesized for the first time via a two-step process. The electronic, transport, and photoconductive properties of NRs studied systematically. It was revealed that showed p-type conductivity, presented significant photoresponses to visible–NIR (400–800 nm) irradiation with high responsivity gain. contribution factors such as surface states NRs, channel length, light intensity, working bias voltage photoresponse characteristics NR...

Oocyte quality, which is directly related to reprogramming competence, a major important limiting factor in animal cloning efficiency. Compared with oocytes matured vivo, vitro exhibit lower oocyte quality and competence primarily because of their higher levels reactive oxygen species. In this study, we investigate whether supplementing the maturation medium melatonin, free radical scavenger, could improve competence. We found that 10-9 M melatonin effectively alleviated oxidative stress,...

Probing anisotropic surface properties of layer-type mineral is fundamentally important in understanding its charge and wettability for a variety applications. In this study, the face edge surfaces natural molybdenite (MoS2) were investigated by direct force measurements using atomic microscope (AFM). The interaction forces between AFM tip (Si3N4) or measured 10 mM NaCl solutions at various pHs. profiles well-fitted with classical DLVO (Derjaguin-Landau-Verwey-Overbeek) theory to determine...

Bis(2-ethylhexyl) phthalate (DEHP) is a widely used plasticizer in polyvinyl chloride (PVC) plastics. Humans and animals are continuously exposed to DEHP, especially with respect diet, which associated reproductive diseases. Nevertheless, the effects underlying mechanisms of DEHP exposure on oocytes vivo remain ambiguous. In this study, we found that oral administration (40 μg/kg body weight per day for 14 days) markedly reduced maturation fertilization vivo. addition, caused oxidative...

A facile chemical solution method was reported for the first time to synthesize CdS/CdSe double-sensitized ZnO nanocable arrays. In this method, CdS prepared by bath deposition and CdSe formed on surface of via ion exchange reaction thereafter. Comprehensive characterization techniques were carried out study composition, microstructure, crystallinity sensitization layers. The ratio revealed be controllable varying temperature reaction. It further demonstrated that nanorods with exhibited...

Purpose: Automatic multilabel classification of multiple fundus diseases is importance for ophthalmologists. This study aims to design an effective model that can automatically classify based on color images. Methods: We proposed a disease convolutional neural network normal and seven categories common diseases. Specifically, attention mechanism was introduced into the further extract information features from The images with eight labels were applied train, validate, test our model....

A halophilic archaeal strain, YGH44T, was isolated from the Yinggehai marine solar saltern in Hainan Province of China. Cells were rod-shaped, stained Gram-negative and formed red-pigmented colonies on agar plates. Optimal growth obtained with 3.4 M NaCl (range: 2.6-4.8 M), 0.5 MgCl2 0.005-1.0 at 37 °C 25-55 °C) pH 7.0 5.0-9.0). The cells lysed distilled water, minimal concentration to prevent cell lysis 1.7 M. Phylogenetic tree reconstructions based 16S rRNA genes rpoB' revealed that strain...

Methionine adenosyltransferase II (MAT2A) is essential to the synthesis of S-adenosylmethionine, a major methyl donor, from L-methionine and ATP. Upon fertilization, zygotic genome activation (ZGA) marks period that transforms transcriptional quiescence robust activity. During this period, embryonic epigenome undergoes extensive modifications, including histone methylation changes. However, whether MAT2A participates in at ZGA stage unknown. Herein, we identified pivotal factor for mouse...

For the purpose of understanding colloidal behaviors illite in mineral processing, probing surface charging property is great significance. This research explored edge and basal surfaces using an atomic force microscope (AFM). The interaction forces between Si/Si3N4 probes edge/basal were measured, respectively, at different pH values 10 mM KCl solutions. Theoretical Derjaguin-Landau-Verwey-Overbeek matched up with measured to derive potentials two surfaces. On surface, attractive occurred...

A novel silica-supported 2-aminomethyl pyridine adsorbent was synthesized using a post-grafting route. This synthetic route involved the reaction of (AMP) with γ-chloropropyltrimethoxysilane (CPTS) prior to immobilization on silica support. Based extensive evidences that amines and acids can play an important role in silanization as activator, meglumine mixture hydrochloric acid ethanol were utilized gentle but effective catalyst. Accordingly, three different pathways investigated catalysis...

ABSTRACT Thermally responsive poly ( N ‐isopropylacrylamide) (pNIPAm)‐based hydrogel particles (microgels) have been extensively studied over past few decades. We, and others, found that assemblies of these microgels exhibit unique properties make them useful such as nonfouling surface coatings, drug release/delivery vehicles, sensors. In this submission, we review our efforts to develop novel water remediation systems optical devices from pNIPAm‐based microgels. © 2013 Wiley Periodicals,...

Fabrication and characterization of the miniature device waveguide grating-structures (WGS) on end facet an optical fiber are demonstrated. A layer ZnO between grating structures serves as waveguide. The is used to direct excitation light WGS carry signal response back detection system. narrow-band resonance mode tunable in visible spectrum can be measured through both transmission reflection. This nanodevice may suitable long-range sensors for refractive-index changes nontransparent or...

Molybdenite, MoS2, a 2-D transition metal dichalcogenide, is potential substitute for graphene. Molybdenite mineral particles are separated from gangue minerals by flotation, process often performed in saline waters, where the presence of divalent cations can cause serious selectivity issues. A fundamental question posed: how do cations, which subject to hydrolysis as function pH, interact with anisotropic molybdenite surfaces? By use combination atomic force microscopy (AFM) surface...

A facile synthesis routine of β-type strontium hydrogen phosphate (β-SrHPO4) nanosheets was provided by the method solution growing at temperatures below 80 °C. β-SrHPO4 utilized for removing lead ions (Pb2+) and adsorbing methyl blue. Within pH values from 2.0 to 6.0 solutions, adsorption capacity could reach above 1000 mg·g–1. The maximum removal 1409 mg·g–1 Pb2+ within 15 min = 4.5 remained stable with increase temperatures. Different cations (Zn2+, Cr3+, Cd2+, Co2+) affected slightly on...