bluuebunny/crossref_metadata_2025_split huggingface dataset:
Anomalous Thermal Transport Driven by Electron–Phonon Coupling in 2D Semiconductor h‐BP
Authors: Zhou Zizhen , Yang Xiaolong , Fu Huixia , Wang Rui , Lu Xu , Wang Guoyu , Zhou Xiaoyuan 
Published: August 2022

AbstractThe electron–phonon coupling (EPC) in semiconductors is typically much weaker than phonon–phonon scattering and its effect on lattice thermal conductivity κl has long been considered negligible. Herein, using first‐principle calculations, it is discovered that the EPC can be significant or even dominant over the intrinsic phonon–phonon scattering via doping in 2D semiconductor hexagonal boron phosphorus (h‐BP). Filling electron pocket till van Hove singularity gradually strengthens the EPC and consequently diminishes the room‐temperature κl by 25% and 80% for monolayer and bilayer h‐BP, respectively. Strikingly, at high doping levels, the EPC drives phonon transport in bilayer h‐BP to an anomalous regime where κl becomes nearly temperature (T) independent deviated from the intrinsic 1/T trend. This distinctive behavior is governed by the joint effects of horizontal mirror symmetry breaking, and weak phonon–phonon scattering stemming from the predominance of normal processes. Further considering electronic contributions, the abnormal T‐independent thermal conductivity is still reserved, thereby facilitating the experimental exploration of EPC effect on κl. This study unveils the exotic thermal transport phenomenon in one‐atom‐thick 2D semiconductors and offers a unique avenue to manipulate heat flow by externally controlling the EPC, which calls for future experimental verification.
Combined Corner‐Sharing and Edge‐Sharing Networks in Hybrid Nanocomposite with Unusual Lattice‐Oxygen Activation for Efficient Water Oxidation
Authors: Zhang Haijuan , Gao Yongxin , Xu Hengyue , Guan Daqin , Hu Zhiwei , Jing Chao , Sha Yuchen , Gu Yuxing , Huang Yu‐Cheng , Chang Yu‐Chung , Pao Chi‐Wen , Xu Xiaomin , Lee Jyh‐Fu , Chin Yi‐Ying , Lin Hong‐Ji , Chen Chien‐Te , Chen Yuhui , Guo Youmin , Ni Meng , Zhou Wei , Shao Zongping 
Published: August 2022

AbstractCorner‐sharing and edge‐sharing networks are the two most important material genomes. Inspired by the efficient electron transport capacity of corner‐sharing structures and the low steric hindrance of edge‐sharing units, an attempt is made to exert both merits by combining these two networks. Here, a unique self‐assembled hybrid SrCo0.55Fe0.5O3‐δ nanorod composed of a corner‐sharing SrCo0.5Fe0.5O3‐δ phase and edge‐sharing Co3O4 structure is synthesized through a Co‐site enrichment method, which exhibits the low overpotentials of 310 and 290 mV at 10 mA cm–2 for oxygen‐evolving reaction in 0.1 m and 1.0 m KOH, respectively. This efficiency is attributed to the high Co valence with strong CoO covalence and the short distance between CoCo/Fe metal active sites in hybrid nanorods, realizing a synergistic benefit. Combined multiple operando/ex situ characterizations and computational studies show that the edge‐sharing units in hybrid nanorods can help facilitate the deprotonation step of lattice oxygen mechanism (LOM) while the corner‐sharing motifs can accelerate the electron transport during LOM processes, triggering an unusual lattice‐oxygen activation. This methodology of combining important material structural genomes can offer meaningful insights and guidance for various catalytic applications.
Transformable ECM Deprivation System Effectively Suppresses Renal Cell Carcinoma by Reversing Anoikis Resistance and Increasing Chemotherapy Sensitivity
Authors: Wang Lu , Li Cong , Wang Jiaqi , Yang Guang , Lv Yulin , Fu Bo , Jian Lingrui , Ma Jinpeng , Yu Jiaao , Yang Zongzheng , Wu Peng , Li Guangbin , Liu Xiao , Kang Zhijian , Wang Ziqi , Wang Lei , Wang Hao , Xu Wanhai 
Published: August 2022

AbstractExtracellular matrix (ECM) is crucial in various biological functions during tumor progression, including induction of anoikis resistance and cell adhesion‐mediated drug resistance (CAM‐DR). Fibronectin (FN) is a vital ECM component with direct regulatory effects on ECM‐mediated anoikis resistance and CAM‐DR, making it an attractive and innovative therapeutic target for depriving ECM in tumor tissue. Herein, an ECM deprivation system (EDS) is developed based on FN targeting self‐assembly peptide for constructing nanofibers in the ECM of renal cell carcinoma (RCC), which contributes to: i) targeting and recognizing FN to form nanofibers for long‐term retention in ECM, ii) reversing anoikis resistance via arresting the FN signaling pathway, and iii) serving as a drug‐loading platform for sensitizing chemotherapy by ameliorating CAM‐DR. The results reveal that EDS significantly reverses anoikis resistance of RCC cells by inhibiting the phosphorylation of FAK, a positive regulator of the FN signaling pathway. Meanwhile, EDS serves as a chemotherapy‐sensitizer of cancer, exerting significant synergistic effects with doxorubicin (DOX). In vivo validation experiments show that EDS effectively suppresses metastasis and tumor growth with chemotherapy resistance. Collectively, the innovative EDS notably inhibits the tumor‐promoting effect of ECM and may provide a novel approach for suppressing ECM and enhancing chemo‐drug sensitivity.
Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons
Authors: Lou Qing , Ni Qingchao , Niu Chunyao , Wei Jianyong , Zhang Zhuangfei , Shen Weixia , Shen Chenglong , Qin Chaochao , Zheng Guangsong , Liu Kaikai , Zang Jinhao , Dong Lin , Shan Chong‐Xin 
Published: August 2022

AbstractCarbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long‐lasting pursuit for CDs. Herein, CDs with near‐unity emission efficiency are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead to the formation of bound excitons and the symmetry break of the π–electron conjugation. The short radiative lifetimes (<8 ns) and diffusion lengths (<50 nm) of the CDs imply that excitons can be efficiently localized by radiative recombination centers for a defect‐insensitive emission of CDs. By incorporating the CDs into polystyrene, flexible light‐converting films with a high solid‐state quantum efficiency of 84% and good resistance to water, heating, and UV light are obtained. With the CD–polymer films as light conversion layers, CD‐based white light‐emitting diodes (WLEDs) with a luminous efficiency of 140 lm W−1 and a flat‐panel illumination system with lighting sizes of more than 100 cm2 are achieved, matching state‐of‐the‐art nanocrystal‐based LEDs. These results pave the way toward carbon‐based luminescent materials for solid‐state lighting technology.
Rational Nanomedicine Design Enhances Clinically Physical Treatment‐Inspired or Combined Immunotherapy
Authors: Liu Qiaoqiao , Zhang Wei , Jiao Rong , Lv Zheng , Lin Xia , Xiao Yunping , Zhang Kun 
Published: August 2022

AbstractIndependent of tumor type and non‐invasive or minimally‐invasive feature, current physical treatments including ultrasound therapy, microwave ablation (MWA), and radiofrequency ablation (RFA) are widely used as the local treatment methods in clinics for directly killing tumors and activating systematic immune responses. However, the activated immune responses are inadequate and incompetent for tumor recession, and the incomplete thermal ablation even aggravates the immunosuppressive tumor microenvironment (ITM), resulting in the intractable tumor recurrence and metastasis. Intriguingly, nanomedicine provides a powerful platform as they can elevate energy utilization efficiency and augment oncolytic effects for mitigating ITM and potentiating the systematic immune responses. Especially after combining with clinical immunotherapy, the anti‐tumor killing effect by activating or enhancing the human anti‐tumor immune system is reached, enabling the effective prevention against tumor recurrence and metastasis. This review systematically introduces the cutting‐edge progress and direction of nanobiotechnologies and their corresponding nanomaterials. Moreover, the enhanced physical treatment efficiency against tumor progression, relapse, and metastasis via activating or potentiating the autologous immunity or combining with exogenous immunotherapeutic agents is exemplified, and their rationales are analyzed. This review offers general guidance or directions to enhance clinical physical treatment from the perspectives of immunity activation or magnification.
A High‐Energy Long‐Cycling Solid‐State Lithium‐Metal Battery Operating at High Temperatures
Authors: Wang Sheng , Xu Ke , Song Hucheng , Zhu Ting , Yu Zhiqian , Song Xiaopan , Li Dongke , Yu Linwei , Xu Jun , Chen Kunji 
Published: August 2022

AbstractHigh‐energy rechargeable lithium‐ion batteries, especially solid‐state lithium metal batteries, are increasingly required to operate at elevated temperatures in addition to pursuing operation at low temperatures. However, the notorious chemical and electrochemical reactions at the interface between the Li‐anode and solid state electrolyte (SSE) make these batteries lose almost all of their capacity and power at elevated temperatures. Here, a safe and long‐cycle‐life solid‐state Li–CO2 battery operating at elevated temperatures by constructing a stable and high ionic conductive molten salts interface (MSI) is reported. The MSI can effectively improve the interface contact and suppress interface reactions and the thermal runaway between Li‐anode and Li1.5Al0.5Ge1.5P3O12 (LAGP)‐electrolyte even at high temperatures, thus enabling an ultra‐low interface impedance (≈15 Ω) and discharge/charge overpotential (≈15 mV) for high temperature symmetric battery. In addition, the MSI‐coated LAGP‐electrolyte shows an ultra‐flat and continuous surface that enables a homogeneous Li tripping/plating during cycles. As a result, the Li symmetric battery shows superior cycling stability over 600 h at 0.1 mA cm−2 at 150 °C. The assembled solid‐state Li–CO2 battery using Ru catalysts shows outstanding cycle stability over 980 cycles at 150 °C, with a capacity limitation of 500 mAhg–1 at 500 mA g−1.
Molten Salts Etching Route Driven Universal Construction of MXene/Transition Metal Sulfides Heterostructures with Interfacial Electronic Coupling for Superior Sodium Storage
Authors: Huang Pengfei , Ying Hangjun , Zhang Shunlong , Zhang Zhao , Han Wei‐Qiang 
Published: August 2022

AbstractThe MXene‐based heterostructures have recently attracted great interest as anode materials for sodium‐ion batteries (SIBs). Nonetheless, the complicated and harsh preparation process impedes their further commercialization. Herein, a novel, safe, low‐destructive, and universal strategy for rationally fabricating Ti3C2Tx MXene/transition metal sulfides (MSy) heterostructures is presented via Lewis acidic molten salts etching and subsequent in situ sulfurization treatment. Benefiting from the interfacial electronic coupling between highly conductive Ti3C2Tx MXene (Tx = O and Cl) and MSy (M = Fe, Co and Ni), the heterostructures possess remarkably improved electronic conductivity, promoted Na+ migration kinetics, and robust architectures. As a proof‐of‐concept demonstration, the Ti3C2Tx/FeS2 heterostructure demonstrates outstanding rate performance (456.6 mAh g−1 at 10 A g−1) and long‐term cyclic stability (474.9 mAh g−1 after 600 cycles at 5 A g−1) when serving as SIB anodes. Impressively, a sodium‐ion full battery with Ti3C2Tx/FeS2 anode delivers an excellent reversible capacity of 431.6 mAh g−1 after 1000 cycles at 3 A g−1. Moreover, the dual sodium storage behavior of Ti3C2Tx/FeS2 heterostructure and underlying mechanism toward exceptional electrochemical performance are revealed by comprehensive characterizations and theoretical calculations. Based on the full utilization of molten salt etching products, the present work offers new insight into the fabrication of MXene‐based heterostructures.
Kinetics‐Boosted Effect Enabled by Zwitterionic Hydrogel Electrolyte for Highly Reversible Zinc Anode in Zinc‐Ion Hybrid Micro‐Supercapacitors
Authors: Zhang Wentao , Guo Fengjiao , Mi Hongyu , Wu Zhong‐Shuai , Ji Chenchen , Yang Congcong , Qiu Jieshan 
Published: August 2022

AbstractDespite impressive merits of complementary charge‐storage mechanisms for aqueous Zn‐ion hybrid micro‐supercapacitors (ZHMSCs), it remains a challenge to solve dendrite and parasitic reactions issues of Zn anodes. Herein, a kinetics‐boosted strategy of Zn2+ transport and desolvation of hydrated Zn2+ is proposed by engineering zwitterionic P(AM‐co‐SBMA) hydrogel electrolyte (PASHE) for highly reversible Zn plating/stripping. Mechanically robust and chemically anchored PASHE features zwitterionic groups for constructing ion migration channels and immobilizing water molecules, which accelerates Zn2+ migration for an ultrahigh transfer number (0.84) and alleviates water‐related parasitic reactions. Theoretical calculations combined with experimental results reveal that sulfobetaine sulfonate anions endow PASHE with improved desolvation kinetics and the ability to coordinate Zn2+ flux and electric field distributions at the electrolyte–electrode interface. Thus, Zn anodes exhibit excellent electrochemical performance involving high average coulombic efficiency of 99.4% in Zn|PASHE|Cu cell as well as high cumulative capacity of 2000 mAh cm−2 (20 mA cm−2, 1 mAh cm−2) and depth of discharge of 80.9% (20 mA cm−2, 10 mAh cm−2) in Zn|PASHE|Zn cells. Furthermore, ZHMSCs based on PASHE deliver excellent flexibility and cyclability for energy‐storage applications. This work provides useful insights on hydrogel electrolyte engineering for developing high‐performance Zn anodes and derived energy‐storage devices.
Early impacts of establishing an integrated organic crop–livestock rotation: Nitrate and phosphorus in subsoil water
Authors: Chhetri Arjun , Anthony Ellyn , Andries Kenneth , Lucas Shawn 
Published: August 2022

AbstractIntegrated crop–livestock rotations enhance biodiversity and ecosystem services, but more information is needed on potential nutrient pollution from these systems. We evaluated nitrate and phosphorus in subsoil water (1‐m depth) from the first 2 yr of a 5‐yr organic crop rotation that incorporated goats (Capra aegagrus hircus) on pasture. The rotation consisted of the following yearly phases: (a) corn (Zea maysL.), (b) soybean [Glycine max(L.) Merr.], (c) pasture Year 1, (d) pasture Year 2, and (e) pasture Year 3 (not reported). Each yearly phase was represented every year of the study. Reference plots in continuous perennial pasture without animals and continuous corn–soybean were also included. Significantly greater nitrate concentrations were observed under cropped plots compared with pasture plots, whereas phosphorus concentrations were significantly greater under pasture plots. Differences were most pronounced at the end of the growing season. For example, in November 2019, cropped plots averaged 13.9 mg nitrate L–1and 0.28 mg phosphorus L–1compared with 2.4 mg nitrate L–1and 0.62 mg phosphorus L–1under pasture. Goats had no impact on nitrate or phosphorus in subsoil water. Year‐round plant nutrient uptake by established root systems may have contributed to lower nitrate under pasture plots. Phosphorus leaching may have occurred via preferential macropore flow and was likely influenced by high native soil phosphorus concentrations. In cropped plots, tillage may have influenced nitrate concentrations through mineralization of nitrogen associated with soil organic matter, while also disrupting macropore channels and thus reducing phosphorus transport to subsoil water.
Copper‐mediated Intermolecular C−H aminohalogenation of Indoles at Room Temperature
Authors: Lu Yuanhui , Zhang Xiaoxiang , Xiao Xiaoyu , Huang Ninghua , Dou Yadong , Liu Chenrui , Wei Wanxing , Zhang Zhuan , Liang Taoyuan 
Published: August 2022

AbstractAn efficient intermolecular C−H aminohalogenation of indoles with azoles and NXS (X = F, Cl, Br, I) has been developed. This mild protocol provides a straightforward entry to structurally valuable 2‐azolyl‐3‐halogenated indoles in one single operation. In addition, this attractive route for the synthesis of polyfunctionalized indoles is of great significance due to the product's versatile reactivity for further transformations.
Preparation, characterization, and evaluation of suspension stabilizer for low‐density cement slurry for cementing
Authors: Feng Qian , Jia Fangjun , Peng Zhigang , Zheng Yong 
Published: August 2022

AbstractA low‐density cement slurry system is commonly used in low‐pressure and leakage‐prone cementing. However, the suspension stability of the system is more difficult to control because of the addition of lightning material. Especially under the condition of large temperature differences, the relative motion between solid particles with large density differences increases, which will aggravate the instability of the slurry and affect the cementing quality. Therefore, to effectively control the suspension stability of the low‐density cementing slurry system, the suspension stabilizer PAND was synthesized by free radical solution polymerization withN‐vinyl caprolactam (NVCL); 2‐acrylamide‐2‐methyl propane sulfonic acid (AMPS),N, N‐dimethyl acrylamide (DMAA) as monomers. The effect of PAND on the stability of low‐density cement slurry under a large temperature difference (40 ~ 120°C) was evaluated. The results showed that under 40 ~ 120°C, adding 0.8% PAND can control the water separation of the cement slurry to 0; the density difference between the upper and lower parts of the cement stone column after curing is less than 0.01 g/cm3. The mechanical properties of cement stone are improved, which shows that it has a good suspension stability effect on low‐density cement slurry systems. The analysis of UV spectroscopy and scanning electron microscopy showed that PAND formed an intermolecular hydrophobic association network structure with the increase in temperature, which could maintain the viscosity of the solution system, thus playing an influential suspension stability role.
The effects of beaver impoundments on montane stream fish communities
Authors: Fritz Samuel F. , Gangloff Michael M. 
Published: August 2022

Abstract

North American beavers (Castor canadensis) are ecosystem engineers that create novel habitats in stream ecosystems. Although driven to the edge of extinction by historical over‐exploitation, beavers are recolonizing much of their former range. In the Southern Appalachian Mountains beavers alter habitats occupied by diverse fish communities across a mosaic of changing forest cover and management priorities.
Fishes were sampled from nine streams with active beaver ponds and from seven streams with inactive ponds in the Southern Appalachians during summer 2019. The status of beaver ponds was among the most important factors affecting fish communities; however, both active and inactive beaver ponds affected fish community structure, α‐diversity, and local contributions to β‐diversity (LCBD).
Fish α‐diversity was lower in reaches from streams with active ponds and the magnitude of this reduction was dependent on the position relative to a pond. However, both active and abandoned beaver ponds and pond tail races had higher LCBD values compared with free‐flowing reaches. Arcsin‐transformed forest cover did not improve the model fit for any dependent variables. Indicator species analysis found that two species had an association with active beaver ponds, whereas eight species were associated with inactive beaver ponds or free‐flowing reaches.
The effects of beaver impoundments on fish communities in Appalachian streams are dependent on the pond activity level and spatial context. Although diversity and species richness may be reduced in individual habitats, beaver ponds contribute to higher biodiversity at a regional spatial scale. An increased understanding of beaver effects on Southern Appalachian fish communities will enable stakeholders to make informed decisions regarding the management of sensitive or economically important fishes. Mitigating conflicts between sensitive resources and these ecosystem engineers will become an increasingly important management concern as beaver populations recover in the Southern Appalachians.
Synthesis of monolayer 2D MoS2 quantum dots and nanomesh films by inorganic molecular chemical vapor deposition for quantum confinement effect control
Authors: Ahn Chaehyeon , Lim Hyunseob 
Published: August 2022

AbstractBandgap engineering is an important prerequisite for various applications of two‐dimensional (2D) transition metal dichalcogenides (TMD). A reduction in the dimension from 2D has been one of the methods to control the electronic structure, by which a quantum confinement effect in the additional axis(es) can result in the widening of band structures. A vapor‐phase process for synthesizing monolayer MoS2 nanomesh film or MoS2 quantum dot is developed based on the inorganic molecular chemical vapor deposition. The vapor‐phase process can control MoS2 coverage by adjusting growth times. Therefore, the formation of nanostructures can be confirmed based on the growth time. The quantum confinement effect in monolayer MoS2 nanomesh films and MoS2 quantum dots is also confirmed via spectroscopic investigations, which induce a blue shift, indicating bandgap widening. Consequently, this approach can be used to synthesize lower‐dimensional TMD materials for bandgap engineering, which is an essential process in optical or optoelectrical applications.
The metabolic adaptation of the adult offspring after maternal high‐dosed folic acid supplementation based on the proteomics and metabolomics in rats
Authors: Kong Xiangju , Yan Qingna , Niu Yucun , Liu Liyan 
Published: August 2022

AbstractThe onset of complex diseases at a later stage of life has been linked with maternal folic acid (FA) ingestion. However, little is known regarding the underlying molecular fingerprints of the offspring. We integrated proteomics–metabolomics profiles and analyzed the influence of maternal FA supplementation on the metabolism of adult offspring rats. Twenty pregnant female rats were randomly assigned to a FA supplementation (FolS group, 10 mg/kg FA) or control group (2 mg/kg FA respectively). Such an omics approach revealed that the dopaminergic synapse pathway, tricarboxylic acid cycle and neural development‐related metabolites such as glutamic acid and γ‐aminobutyric acid were significantly up‐regulated in the FolS group, whereas pyruvic acid, oxalic acid and adipic acid were reduced. Maternal FA supplementation can cause alterations of metabolites and protein in the offspring rats.