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This mechanically cloaks the solid particles and enables a fluid-like mechanical response while imparting high magnetic permeability to the composite. This microstructure reduces the modulus of the composite below that of the initial elastomer to less then 40 kPa while increasing the permeability by over 100% to greater than 2. We demonstrate the functionality of these materials through conformable magnetic backplanes, which enables a completely soft, coupled inductor system capable of transferring power up to 100% strain and wearable devices for wireless power transfer.Lauric acid (LA) has been implicated in the prevention/treatment of obesity. However, the role of LA in modulating an obesity-related female reproductive disorder remains largely unknown. Here, female mice were fed a control diet, high-fat diet (HFD), or HFD supplemented with 1% LA. The results demonstrated that the HFD-induced estrous cycle irregularity and the reduction of serum follicle-stimulating hormone (FSH) were alleviated by LA supplementation. In possible mechanisms, LA supplementation led to significant increase in serum lipid metabolites such as sphingomyelin and lysophosphatidylcholine containing LA (C120) and the improvement of glucose metabolism in mice fed HFD. Moreover, impaired body energy metabolism and weakened brown adipose tissue (BAT) thermogenesis of HFD-fed mice were improved by LA supplementation. Together, these findings showed that LA supplementation alleviated HFD-induced estrous cycle irregularity, possibly associated with altered serum lipid metabolites, improved glucose metabolism, body energy metabolism, and BAT thermogenesis. #link# These findings suggested the potential application of LA in alleviating obesity and its related reproductive disorders.Cost-effective transition metal chalcogenides have aroused wide consideration as alternative anode materials in lithium ion batteries (LIBs) on account of their elevated lithium activity and considerable theoretical capacity. However, the significant challenge caused by the large volume change and shuttle effect of polysulfides during Li ion insertion/extraction severely restricts their practical application. In this work, the uniform MnO2 coating layer with a tunable thickness on Ni3S2 nanorod arrays has been achieved through a mild oriented-redox reaction by taking advantage of the mixing valence of Ni in Ni3S2 [(Ni2+)2(Ni0)(S2-)2]. The core/shell structured nanorod arrays directly used as anode materials of LIBs demonstrate remarkably improved lithium storage performance including high rate capacity and long cycle life, which deliver a discharge capacity of 662 mA h g-1 for 150 cycles at 0.5 C, corresponding to an elevated capacity retention of 90.7%. The improved electrochemical performances can be assigned to the generation of stable solid electrolyte interface films and suppression of the shuttle behavior with the protection of the MnO2 coating layer on Ni3S2 nanorod arrays.Intraneuronal aggregation of the intrinsically disordered protein α-synuclein is at the core of Parkinson's disease and related neurodegenerative disorders. Several reports show that the concentration of salts in the medium heavily affects its aggregation rate and fibril morphology, but a characterization of the individual monomeric conformations underlying these effects is still lacking. In Selleckchem ARS-853 , we have applied our α-synuclein-optimized coarse-grained molecular dynamics approach to decipher the structural features of the protein monomer under a range of NaCl concentrations (0.0-1.0 M). The results show that key intramolecular contacts between the terminal domains are lost at intermediate concentrations (leading to extended conformations likely to fibrillate), but recovered at high concentrations (leading to compact conformations likely to evolve toward amorphous aggregates). The pattern of direct interactions of the terminal α-synuclein domains with Na+ and Cl- ions plays a key role in explaining this effect. link2 Our results are consistent with a recent study reporting a fibrillation enhancement at moderate NaCl concentrations but an inhibition at higher concentrations. The present work will contribute to improving our understanding of the structural features of monomeric α-synuclein, determining its NaCl-induced fibrillation propensity and the molecular basis of synucleinopathies, necessary for the future development of disease-halting therapies.The filamentous fungus Trichoderma reesei (teleomorph Hypocrea jecorina) is widely used as a cellulase producer in the industry. Herein, we describe the rational engineering of the publicly available T. reesei QM9414 strain to achieve a remarkable high-level production of cellulase on glucose. Overexpression of the key cellulase regulator XYR1 by the copper-repressible promoter Ptcu1 was first implemented to achieve a full cellulase production in the context of catabolite repression (CCR) while eliminating the requirement of inducing sugars for enzyme production. The T. reeseibgl1 gene was further overexpressed to compensate for its low β-glucosidase activity on glucose. This overexpression resulted in a 102% increase in FPase activity compared with the CCR-released RUT-C30 strain cultured on Avicel. Moreover, the saccharification efficiency toward pretreated corncob residues by crude enzymes from the engineered strain on glucose increased by 85% compared with that treated by enzymes from RUT-C30 cultivated on Avicel. The engineered T. reesei strain thus shows great potential as a viable alternative to deliver commercial cellulases after further optimization for efficient saccharification of agricultural waste.The pH of a system is a critical descriptor of its chemistry-impacting reaction rates, solubility, chemical speciation, and homeostasis. As a result, pH is one of the most commonly measured parameters in food safety, clinical, and environmental laboratories. Glass pH probes are the gold standard for pH measurements but suffer drawbacks including frequent recalibration, wet storage of the glass membrane, difficulty in miniaturization, and interferences from alkali metals. In this work, we describe a voltammetric pH sensor that uses a three-dimensional (3D)-printed graphene/poly(lactic acid) filament electrode that is pretreated to introduce quinone functional groups to the graphene surface. After thoroughly characterizing the pretreatment parameters using outer-sphere and inner-sphere redox couples, we measured pH by reducing the surface-bound quinones, which undergo a pH-dependent 2e-/2H+ reduction. The position of the redox peak was found to shift -60 ± 2 mV pH-1 at 25 °C, which is in excellent agreement with the theoretical value predicted by the Nernst Equation (-59.2 mV pH-1). Importantly, the sensors did not require the removal of dissolved oxygen prior to successful pH measurements. We investigated the impact of common interfering species (Pb2+ and Cu2+) and found that there was no impact on the measured pH. We subsequently challenged the sensors to measure the pH of unadulterated complex samples, including cola, vinegar, an antacid tablet slurry, serum, and urine, and obtained excellent agreement compared to a glass pH electrode. In addition to the positive analytical characteristics, the sensors are extremely cheap and easy to fabricate, making them highly accessible to a wide range of researchers. These results pave the way for customizable pH sensors that can be fabricated in (nearly) any geometry for targeted applications using 3D printing.The development of photovoltaic devices with a high output voltage offers great opportunities for emerging internet of things (IoT) sensors and low-power-consumption electronics. However, the photovoltage of solar cells is yet to satisfy the requirement of driving voltage for most applications. Here, we demonstrate a wide-band gap CsPbBr3-based solar cell with a heterostructured light absorber based on amino acid-modulated CsPbBr3 and CdSe quantum dots (QDs). Compared with the single absorbing layer device, the heterostructured device exhibits a low nonradiative recombination loss, which is strongly correlated to the high external electroluminescence of the device. In addition, in the heterostructured solar cells, carrier transfer from the perovskite to CdSe QDs induces the conduction band bending of CdSe QDs, leading to a large splitting of the quasi-Fermi levels. As a result, a remarkable photovoltage up to 1.75 V is achieved for the wide-band gap solar cells, representing an extremely low voltage deficit of 250 mV. Furthermore, the CsPbBr3-based solar cells exhibit a weak light intensity dependence, showing a photovoltage of 1.59 V under room light conditions. Our work not only provides an effective approach for the design of high-photovoltage solar cells but also paves the ways of using photovoltaic devices for various applications with low driving voltage schemes.Cell entry, the fundamental step in cross-species transmission of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), is initiated by the recognition of the host cell angiotensin-converting enzyme-2 (ACE2) receptor by the receptor-binding domain (RBD) of the spike protein of SARS-CoV-2. To date, several peptides have been proposed against SARS-CoV-2 both as inhibitor agents or as detection tools that can also be attached to the surfaces of nanoparticle carriers. But owing to their natural amino acid sequences, such peptides cannot be considered as efficient therapeutic candidates from a biostability point of view. This discussion demonstrates the design strategy of synthetic nonprotein amino acid substituted peptides with enhanced biostability and binding affinity, the implication of which can make those peptides potential therapeutic agents for inhibition and simple detection tools.Azulitox as a new fusion polypeptide with cancer cell specificity and phototoxicity was generated and is composed of a photosensitizer domain and the cell-penetrating peptide P28. link3 The photosensitizer domain (EcFbFP) was derived from a bacterial blue-light receptor, which belongs to the family of light-oxygen-voltage proteins and produces reactive oxygen species (ROS) upon excitation. P28 is derived from the cupredoxin protein azurin that is known to specifically penetrate cancer cells and bind to the tumor suppressor protein p53. We show that the P28 domain specifically directs and translocates the fused photosensitizer into cancer cells. Under blue-light illumination, Azulitox significantly induced cytotoxicity. Compared to the extracellular application of EcFbFP, Azulitox caused death to about 90% of cells, as monitored by flow cytometry, which also directly correlated with the amount of ROS produced in the cells. Azulitox may open new avenues toward targeted polypeptide-photosensitizer-based photodynamic therapies with reduced systemic toxicity compared to conventional photosensitizers.Since 2009, the Tox21 project has screened ∼8500 chemicals in more than 70 high-throughput assays, generating upward of 100 million data points, with all data publicly available through partner websites at the United States Environmental Protection Agency (EPA), National Center for Advancing Translational Sciences (NCATS), and National Toxicology Program (NTP). Underpinning this public effort is the largest compound library ever constructed specifically for improving understanding of the chemical basis of toxicity across research and regulatory domains. Each Tox21 federal partner brought specialized resources and capabilities to the partnership, including three approximately equal-sized compound libraries. All Tox21 data generated to date have resulted from a confluence of ideas, technologies, and expertise used to design, screen, and analyze the Tox21 10K library. The different programmatic objectives of the partners led to three distinct, overlapping compound libraries that, when combined, not only covered a diversity of chemical structures, use-categories, and properties but also incorporated many types of compound replicates.
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