Interlayer Expanded MXene Film Cathodes with Rich Defects for Flexible 2-Electron Oxalate-Based Li-CO Batteries: A New Path to Enhanced Energy Efficiency and Durability.

Aprotic Li-CO batteries have garnered significant attention owing to their high theoretical energy density and potential in zero-carbon technology. However, their practical application remains hindered by sluggish CO reduction/evolution reaction (CRR/CER) kinetics and limited flexibility. While 2D graphene-like materials are commonly employed to settle these issues, their four-electron pathway limits efficiency and reversibility.

High-Energy-Density Li-CO Battery at Elevated Temperatures: Advances with Fluorine-Substituted Graphdiyne and Ionic Liquid.

Li-CO batteries demonstrate promising prospects in terms of high-density energy storage and efficient CO fixation. However, their practical application is impeded by sluggish reaction kinetics and leakage of volatile and flammable organic electrolytes, especially for high temperature application scenarios, leading to large polarization and limited cycling stability. Herein, we fabricate a highly rechargeable and stable Li-CO battery with high temperature adaptability by employing fluorine-substituted graphdiyne (FGDY) as cathode catalysts and imidazolium-based ionic liquid as electrolyte solvents.

 (Günther, 1873), a senior synonym of the congeneric species (Shaw, 1934) (Teleostei, Bagridae) from eastern China.

Despite the current recognition of and as two separate valid species of China, neither species have been revised based on examination of their types and/or topotypical materials, nor have they genetically analyzed. In this study, examination of the holotype of showed that it has a serrated anterior edge of the pectoral spine, a slightly emarginate caudal fin, and longer maxillary barbels extending beyond the base of the pectoral spine, the characters shared with specimens currently identified as . Morphological comparisons and molecular analysis showed that specimens from mainland China, which are characterized by the three mentioned morphological features, represent a single species.

Ultrathin surface coating of conductive and zincophilic titanium oxynitride enables stable zinc anodes for aqueous zinc-ion batteries.

The lifespan of aqueous zinc ion batteries (AZIB) has been hindered by the instability of zinc anodes, encountering challenges such as irregular dendritic growth, corrosion and hydrogen evolution reactions. In this study, we address these challenges by employing atomic-layer deposition (ALD) to create an ultrathin, conductive titanium oxynitride (TiNO) coating with abundant zincophilic sites. This atomic-scale coating serves as a bi-functional barrier that isolates the zinc metal from the electrolyte, thereby reducing spontaneous corrosion and mitigating hydrogen evolution.

In Situ Characterizations of the Dynamics of Cathode Electrolyte Interfaces at Different Current Densities.

LiNiMnCoO with high nickel content plays a critical role in enabling lithium metal batteries (LMBs) to achieve high specific energy density, making them a prominent choice for electric vehicles (EVs). However, ensuring the long-term cycling stability of the cathode electrolyte interfaces (CEIs), particularly at fast-charge conditions, remains an unsolved challenge. The decay mechanism associated with CEIs and electrolytes in LMB at high current densities is still not fully understood.

Flexible Li-CO Batteries with Boosted Reaction Kinetics and Cyclelife Enabled by Heterostructured MoN@TiN Cathode and Interface-protected Li Anode.

With theoretically endowing with high energy densities and environmentally friendly carbon neutralization ability, flexible fiber-shaped Li-CO battery emerges as a multipurpose platform for next-generation wearable electronics. Nevertheless, the ineluctable issues faced by cathode catalysts and Li anodes have brought enormous obstacles to the development of flexible fiber-shaped Li-CO batteries. Herein, a flexible fiber-shaped Li-CO battery based on MoN cathode coating with atomic layer deposited TiN and LiN protected Li anode is constructed.

Synthetic CRISPR/dCas9-KRAB system driven by specific PSA promoter suppresses malignant biological behavior of prostate cancer cells through negative feedback inhibition of PSA expression.

PSA is a type of proto-oncogene that is specifically and highly expressed in embryonic and prostate cancer cells, but not expressed in normal prostate tissue cells. The specific expression of prostate-specific antigen (PSA) is found to be related with the conditional transcriptional regulation of its promoter. Clustered regularly interspaced short palindromic repeats (CRISPR)-dCas9-KRAB is a newly developed transcriptional regulatory system that inhibits gene expression by interupting the DNA transcription process.

Strategies Toward Stretchable Aqueous Zn-based Batteries for Wearable Electronics from Components to Devices.

Recently, aqueous Zn-based batteries (AZBs) are receiving increased attention in wearable and implantable electronics due to the low cost, high safety, high eco-efficiency, and relatively high energy density. However, it is still a big challenge to develop stretchable AZBs (SAZBs) which can be conformally folded, crumpled, and stretched with human body motions. Although a lot of efforts have been dedicated to constructions of SAZBs, a comprehensive review which focuses on summarizing stretchable materials, device configurations and challenges of SAZBs is needed.

Porous Mo P/Mo Nanorods as Efficient Mott-Schottky Cathode Catalysts for Low Polarization Li-CO Battery.

Li-CO battery with high energy density has aroused great interest recently, large-scale applications are hindered by the limited cathode catalysis performance and execrably cycle performance. Herein, Mo P/Mo Mott-Schottky heterojunction nanorod electrocatalyst with abundant porous structure is fabricated and served as cathodes for Li-CO batteries. The Mo P/Mo cathodes exhibit ultra-high discharge specific capacity of 10 577 mAh g , low polarization voltage of 0.

Ion Diffusion-Directed Assembly of an Artificial Electronic-Ionic Conductor Layer with Zn-Ion Selective Channels for Highly Reversible Zinc Anodes.

Although aqueous zinc-ion batteries have attracted much attention due to their high safety, low cost, and relatively high energy density, their practical applications are severely limited by the uncontrollable dendrite growth and side reactions at the zinc anode. Herein, we design an electronic-ionic conductor artificial layer with Zn-ion selective channels on the Zn surface to regulate the Zn plating/stripping behavior through a one-step ion diffusion-directed assembly strategy using the commercially available conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). Significantly, the functional PEDOT:PSS-Zn (PPZ) layer with abundant selective Zn-ion channels works as both an electron regulator and an ion regulator that could not only simultaneously uniformize the electrical and Zn concentration field on the Zn surface and accelerate the Zn transport kinetics but also block the access of SO and HO.

Ultrastretchable, Multihealable, and Highly Sensitive Strain Sensor Based on a Double Cross-Linked MXene Hydrogel.

The ability of a flexible strain sensor to directly adapt the complicated human biological motion or combined gestures and remotely control the artificial intelligence robotics could benefit the wearable electronics such as intelligent robotics and patient healthcare. However, it is a challenge for the flexible strain sensor to simultaneously achieve high sensing performances and stretchability and long sustainability under various deformation stress or damage. Herein, a dual-cross-linked poly(acrylic acid-stearyl methacrylate)/MXene [P(AA-SMA)M] hydrogel with enhanced mechanical stretchability and self-healability is fabricated by importing reversible coordination and hydrophobic interaction into polymer networks.

Boosting the reaction kinetics in aprotic lithium-carbon dioxide batteries with unconventional phase metal nanomaterials.

Given the high energy density and eco-friendly characteristics, lithium-carbon dioxide (Li-CO) batteries have been considered to be a next-generation energy technology to promote carbon neutral and space exploration. However, Li-CO batteries suffer from sluggish reaction kinetics, causing large overpotential and poor energy efficiency. Here, we observe enhanced reaction kinetics in aprotic Li-CO batteries with unconventional phase 4H/face-centered cubic (fcc) iridium (Ir) nanostructures grown on gold template.

Targeted Methylation of the LncRNA NEAT1 Suppresses Malignancy of Renal Cell Carcinoma.

Long-chain non-coding RNA (LncRNA) has been found to play an important role in the regulation of the occurrence and progression of renal cell carcinoma (RCC). In this study, we demonstrated that LncRNA NEAT1 expression and m6A methylation level was decreased in RCC tissues. Further, the downregulated expression level of LncRNA NEAT1 was associated with poor prognosis for RCC patients.

Unraveling Sequence Effect on Glass Transition Temperatures of Discrete Unconjugated Oligomers.

Sequence plays a critical role in enabling unique properties and functions of natural biomolecules, which has promoted the rapid advancement of synthetic sequence-defined polymers in recent decades. Particularly, investigation of short chain sequence-defined oligomers (also called discrete oligomers) on their properties has become a hot topic. However, most studies have focused on discrete oligomers with conjugated structures.

CRISPR-Cas13-Mediated Knockdown of lncRNA-GACAT3 Inhibited Cell Proliferation and Motility, and Induced Apoptosis by Increasing p21, Bax, and E-Cadherin Expression in Bladder Cancer.

The current study is to investigate the expression pattern and biological function of long non-coding RNA Focally gastric cancer-associated transcript3 (GACAT3) in bladder cancer. Real-time quantitative qPCR was used to detect the expression level of GACAT-3 in tumor tissues and paired normal tissues. Human bladder cancer T24 and 5637 cell lines were transiently transfected with specific CRISPR-Cas13 or negative control CRISPR-Cas13.

Two-Dimensional Electron Gas at the Spinel/Perovskite Interface: Suppression of Polar Catastrophe by an Ultrathin Layer of Interfacial Defects.

Two-dimensional electron gas (2DEG) at the interface between two insulating perovskite oxides has attracted much interest for both fundamental physics and potential applications. Here, we report the discovery of a new 2DEG formed at the interface between spinel MgAlO and perovskite SrTiO. Transport measurements, electron microscopy imaging, and first-principles calculations reveal that the interfacial 2DEG is closely related to the symmetry breaking at the MgAlO/SrTiO interface.

Evaluation of Amorphous Oxide Coatings for High-Voltage Li-Ion Battery Applications Using a First-Principles Framework.

Cathode surface coatings are widely used industrially as a means to suppress degradation and improve electrochemical performance of lithium-ion batteries. However, developing an optimal coating is challenging, as different coating materials may enhance one aspect of performance while hindering another. To elucidate the fundamental thermodynamic and transport properties of amorphous cathode coating materials, here, we present a framework for calculating and analyzing the Li and O transport and the stability against delithiation in such materials.

[Medication versus health education for patients with type Ⅲ prostatitis-like symptoms: A prospective randomized control study].

Objective: To investigate the necessity of medication for patients with type Ⅲ prostatitis-like symptoms for less than 3 months.

Methods: We enrolled in this study 171 outpatients with type Ⅲ prostatitis-like symptoms for less than 3 months in our hospital from November 2016 to October 2017, and randomly divided them into groups A (n = 57), B (n = 57) and C (n = 57). The patients of group A received tamsulosin, levofloxacin and health education, those of group B tamsulosin and health education, and those of group C health education only.

Unraveling Reaction Mechanisms of MoC as Cathode Catalyst in a Li-CO Battery.

First-principles density functional theory calculations are first used to study possible reaction mechanisms of molybdenum carbide (MoC) as cathode catalysts in Li-CO batteries. By systematically investigating the Gibbs free energy changes of different intermediates during lithium oxalate (LiCO) and lithium carbonate (LiCO) nucleations, it is theoretically demonstrated that LiCO could be stabilized as the final discharge product, preventing the further formation of LiCO. The surface charge distributions of LiCO adsorbing onto catalytic surfaces are studied by using Bader charge analysis, given that electron transfers are found between LiCO and MoC surfaces.

Ultrafine nanosulfur particles sandwiched in little oxygen-functionalized graphene layers as cathodes for high rate and long-life lithium-sulfur batteries.

Although lithium-sulfur batteries are one of the promising candidates for next-generation energy storage systems, the practical applications are still hampered by the poor cycle life, which can be attributed to the insulating properties of sulfur and the shuttle effect of electrochemical intermediate polysulfides. To address these problems, we synthesize sandwich-like composites which consist of ultrafine nanosulfur particles enveloped by little oxygen-functionalized graphene layers (F-GS@S). In this structure, the little oxygen-functionalized graphene backbone can not only accelerate the redox kinetics of sulfur species, but also eliminate the shuttle effect of polysulfides by strong chemical interaction.

LncARSR sponges miR-129-5p to promote proliferation and metastasis of bladder cancer cells through increasing SOX4 expression.

Emerging evidences have indicated that long non-coding RNAs (lncRNAs) are potential biomarkers, playing important roles in the development of cancer. LncRNA Activated in RCC with Sunitinib Resistance (lncARSR) is a novel lncRNA that functions as a potential biomarker and is involved in the progression of cancers. However, the clinical significance and molecular mechanism of lncARSR in bladder cancer (Bca) remains unknow.

Bamboo-Like Nitrogen-Doped Carbon Nanotube Forests as Durable Metal-Free Catalysts for Self-Powered Flexible Li-CO Batteries.

The Li-CO battery is a promising energy storage device for wearable electronics due to its long discharge plateau, high energy density, and environmental friendliness. However, its utilization is largely hindered by poor cyclability and mechanical rigidity due to the lack of a flexible and durable catalyst electrode. Herein, flexible fiber-shaped Li-CO batteries with ultralong cycle-life, high rate capability, and large specific capacity are fabricated, employing bamboo-like N-doped carbon nanotube fiber (B-NCNT) as flexible, durable metal-free catalysts for both CO reduction and evolution reactions.

A Quasi-Solid-State Flexible Fiber-Shaped Li-CO Battery with Low Overpotential and High Energy Efficiency.

The rapid development of wearable electronics requires a revolution of power accessories regarding flexibility and energy density. The Li-CO battery was recently proposed as a novel and promising candidate for next-generation energy-storage systems. However, the current Li-CO batteries usually suffer from the difficulties of poor stability, low energy efficiency, and leakage of liquid electrolyte, and few flexible Li-CO batteries for wearable electronics have been reported so far.