bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photothermal‐Enhanced Uranium Extraction from Seawater: A Biomass Solar Thermal Collector with 3D Ion‐Transport Networks
Authors: Li Tingyang , Lin Xiangbin , Zhang Zhehua , Yang Linsen , Qian Yongchao , Fu Lin , Zhou Shengyang , Chen Weipeng , Wang Qingchen , Li Xin , Kong Xiang‐Yu , Xiao Hongyan , Jiang Lei , Wen Liping 
Published: March 2023

AbstractAccess to uranium resources is critical to the sustainable development of nuclear energy. The ocean contains abundant uranium resources, but the marine biological pollution and the low concentration of uranium make it a giant challenge to extract uranium from seawater. On the foundation of selective uranium adsorption using high uranium‐affinity groups, realizing the external‐field improved uranium capture without extra energy consumption is highly attractive. A solar thermal collector with 3D ion‐transport networks based on environmentally friendly biomass adsorption material is reported, which contains antibacterial adsorption ligands and photothermal graphene oxide. The antibacterial ability through an easy one‐step reaction and the fast mass transfer caused by photothermal conversion collaboratively improve the original adsorption capacity of the hydrogel by 46.7%, reaching 9.18 mg g−1 after contact with natural seawater for 14 days. This study provides a universal strategy for the design of physical‐fields‐enhanced hydrogel adsorbents.
Accelerated Bone Reconstruction by the Yoda1 Bilayer Membrane via Promotion of Osteointegration and Angiogenesis
Authors: Yang Jinghong , Yuan Kaiting , Zhang Tingting , Zhou Shiqi , Li Weichang , Chen Zetao , Wang Yan 
Published: March 2023

AbstractGuided bone regeneration membranes are widely used to prevent fibroblast penetration and facilitate bone defect repair by osteoblasts. However, the current clinically available collagen membranes lack bone induction and angiogenic capacities, exhibiting limited bone regeneration. The mechanically sensitive channel, Piezo1, which is activated by Yoda1, has been reported to play crucial roles in osteogenesis and angiogenesis. Nevertheless, the application of Yoda1 alone is unsustainable to maintain this activity. Therefore, this study fabricates a Yoda1‐loading bilayer membrane using electrospinning technology. Its inner layer in contact with the bone defect is composed of vertically aligned fibers, which regulate the proliferation and differentiation of cells, release Yoda1, and promote bone regeneration. Its outer layer in contact with the soft tissue is dense with oriented fibers by UV cross‐linking, mainly preventing fibroblast infiltration and inhibiting the immune response. Furthermore, the loaded Yoda1 affects osteogenesis and angiogenesis via the Piezo1/RhoA/Rho‐associated coiled‐coil‐containing protein kinase 1/Yes1‐associated transcriptional regulator signaling pathway. The results reveal that the Yoda1 bilayer membrane is efficient and versatile in accelerating bone regeneration, suggesting its potential as a novel therapeutic agent for various clinical issues.
Advances in Injectable Hydrogel Strategies for Heart Failure Treatment
Authors: He Shuyi , Zhang Zaiyuan , Luo Rifang , Jiang Qing , Yang Li , Wang Yunbing 
Published: March 2023

AbstractHeart failure (HF) affects 60 million people worldwide and has developed into a global public health problem surpassing cancer and urgently needs to be solved. According to the etiological spectrum, HF due to myocardial infarction (MI) has become the dominant cause of morbidity and mortality. Possible treatments include pharmacology, medical device implantation, and cardiac transplantation, which are limited in their ability to promote long‐term functional stabilization of the heart. Injectable hydrogel therapy has emerged as a minimally invasive tissue engineering treatment approach. Hydrogels can provide the necessary mechanical support for the infarcted myocardium and serve as carriers of various drugs, bioactive factors, and cells to improve the cellular microenvironment in the infarcted region and induce myocardial tissue regeneration. Herein, the pathophysiological mechanism of HF is explored and injectable hydrogels as a potential solution for current clinical trials and applications are summarized. Specifically, mechanical support hydrogels, decellularized ECM hydrogels, a variety of biotherapeutic agent‐loaded hydrogels and conductive hydrogels for cardiac repair were discussed, and the mechanism of action of these hydrogel‐based therapies was emphasized. Finally, the limitations and future prospects of injectable hydrogel therapy for HF post MI were proposed to inspire novel therapeutic strategies.
Perfusable Biohybrid Designs for Bioprinted Skeletal Muscle Tissue
Authors: Filippi Miriam , Yasa Oncay , Giachino Jan , Graf Reto , Balciunaite Aiste , Stefani Lisa , Katzschmann Robert K. 
Published: March 2023

AbstractEngineered, centimeter‐scale skeletal muscle tissue (SMT) can mimic muscle pathophysiology to study development, disease, regeneration, drug response, and motion. Macroscale SMT requires perfusable channels to guarantee cell survival, and support elements to enable mechanical cell stimulation and uniaxial myofiber formation. Here, stable biohybrid designs of centimeter‐scale SMT are realized via extrusion‐based bioprinting of an optimized polymeric blend based on gelatin methacryloyl and sodium alginate, which can be accurately coprinted with other inks. A perfusable microchannel network is designed to functionally integrate with perfusable anchors for insertion into a maturation culture template. The results demonstrate that i) coprinted synthetic structures display highly coherent interfaces with the living tissue, ii) perfusable designs preserve cells from hypoxia all over the scaffold volume, iii) constructs can undergo passive mechanical tension during matrix remodeling, and iv) the constructs can be used to study the distribution of drugs. Extrusion‐based multimaterial bioprinting with the inks and design realizes in vitro matured biohybrid SMT for biomedical applications.
Molecular Engineering of Metal–Organic Frameworks as Efficient Electrochemical Catalysts for Water Oxidation
Authors: Liu Yizhe , Li Xintong , Zhang Shoufeng , Wang Zilong , Wang Qi , He Yonghe , Huang Wei‐Hsiang , Sun Qidi , Zhong Xiaoyan , Hu Jue , Guo Xuyun , Lin Qing , Li Zhuo , Zhu Ye , Chueh Chu‐Chen , Chen Chi‐Liang , Xu Zhengtao , Zhu Zonglong 
Published: March 2023

AbstractMetal–organic framework (MOF) solids with their variable functionalities are relevant for energy conversion technologies. However, the development of electroactive and stable MOFs for electrocatalysis still faces challenges. Here, a molecularly engineered MOF system featuring a 2D coordination network based on mercaptan–metal links (e.g., nickel, as for Ni(DMBD)‐MOF) is designed. The crystal structure is solved from microcrystals by a continuous‐rotation electron diffraction (cRED) technique. Computational results indicate a metallic electronic structure of Ni(DMBD)‐MOF due to the Ni–S coordination, highlighting the effective design of the thiol ligand for enhancing electroconductivity. Additionally, both experimental and theoretical studies indicate that (DMBD)‐MOF offers advantages in the electrocatalytic oxygen evolution reaction (OER) over non‐thiol (e.g., 1,4‐benzene dicarboxylic acid) analog (BDC)‐MOF, because it poses fewer energy barriers during the rate‐limiting *O intermediate formation step. Iron‐substituted NiFe(DMBD)‐MOF achieves a current density of 100 mA cm−2 at a small overpotential of 280 mV, indicating a new MOF platform for efficient OER catalysis.
Gelatin‐Coated ZnO Array Nanoplatform for Capture, Drug Resistance Identification, and Recovery of Circulating Tumor Cells
Authors: Dai Jiahao , Cai Bo , Zhang Yan , Zhao Shukun , Zhao Xingzhong , Wang Guobin , Wang Lin , Wang Zheng 
Published: March 2023

AbstractDrug resistance causes failure of cancer treatment. Identifying drug sensitivity of tumors can guide therapeutic administration for cancer patients, however this approach lacks a facile, fast, and noninvasive evaluation platform. Herein, a gelatin‐coated ZnO array nanoplatform to isolate circulating tumor cells (CTCs) is developed, and their drug resistance for inspecting tumor sensitivity is assessed. The nanoplatform is comprised of a nanosubstrate of ZnO submicropillars (ZnO SMPs) for efficiently isolating cancer cells, and Au nanoparticles (AuNPs) based electrochemical probes for evaluating drug resistance of the captured cells. Gelatin, an extracellular matrix‐like and enzyme‐degradable material, is used to coat ZnO SMPs and AuNPs, endowing the nanoplatform with the ability to maintain cancer cell viability and realize enzyme‐responsive cell recovery for downstream bioanalysis. This nanoplatform is expected to noninvasively evaluate drug sensitivity of cancer patients through simple liquid biopsy of CTCs in peripheral blood and benefit the treatment.
Superelastic Conductive Fibers with Fractal Helices for Flexible Electronic Applications
Authors: Zhao Shanshan , Chen Juan , Zhou Jingyu , Shi Shangxuan , Hou Miao , Sheng Bin 
Published: March 2023

AbstractThe widespread application of flexible electronic devices places higher demands for stretchable conductors as crucial components owing to their stable and consistently high conductivity and high stretchability. In this study, a superelastic conductive fractal helix fiber (FHF) consisting of a thermoplastic polyurethane fiber and Ag wire is developed, which exhibits excellent waterproofing ability. The maximum strain of the FHF can be improved to 8300% by increasing the helical index C and Ag wire winding density. A high conductivity of 6.3 × 107 S m−1 and ultra‐high Q value of 3.37 × 104 at a strain of 5600% are realized for the conductive fiber owing to its fractal helical structure. The elastic limit point A of the FHF can be obtained by the relative resistance change (0.166%) to ensure that elastic deformation only occurs when stress is applied. In the elastic strain range, FHF demonstrates high electrical reliability under repeated deformation (over 10 000 cycles of stretching with a strain of 5600%) with a negligible increase in resistance. Moreover, the FHF can be easily integrated with the fabrics as an interconnection for wearable electronics. The newly developed twined FHF can also be used as a capacitive strain sensor to monitor human activity.
Large‐Area Deep‐Blue Polymer Light‐Emitting Diodes with Well‐Resolved Emission from Planar Conformational Segments Fabricated via Brush Coating
Authors: Xu Man , Wei Chuanxin , Wang Shengjie , Zhang Jingrui , Ma Jingyao , Sun Ning , Sun Lili , Han Yamin , Bai Lubing , Lin Jinyi , Qiao Jiawei , Hao Xiatao , Xue Wei , Xie Linghai , Huang Wei 
Published: March 2023

AbstractThe fabrication of large‐area printed deep‐blue polymer light‐emitting diodes (PLEDs) is a prerequisite for solid‐state lighting and flat‐panel displays. However, manufacturing large‐area narrow‐band deep‐blue PLEDs remains a challenging task owing to the difficulties in reducing structural distortions caused by the transitions from the ground to excited states. Herein, large‐area deep‐blue PLEDs with narrow‐band emission from the planar (β) conformational segments of polydiarylfluorenes are fabricated via brush coating. First, large‐area uniform brush‐coated films (4 × 4 cm2) with a relatively smooth morphology are manufactured. They produce strong, stable, and narrow‐band deep‐blue emission (full width at half maximum (FWHM): 29 nm for the 0–0 and 0–1 emission peaks), which results from single β‐conformational segments without a charge transfer state. Therefore, owing to their efficient emission and excellent printing capability, large‐area brush‐coated PLEDs with an emission area of 3 × 3 cm2 and uniform deep‐blue emission (FWHM: 27 nm; CIE chromaticity coordinate: (0.15, 0.10), brightness: 3780 cd m−2) are obtained, and their maximum external quantum efficiency (1.79%) is two times higher than those of the devices containing spin‐coated films. Finally, considering the key role of deep‐blue PLEDs, the fabrication of a preliminary patterned PLED array confirms their potential display applications.
Structural Engineering of H0.5Z0.5O2‐Based Ferroelectric Tunneling Junction for Fast‐Speed and Low‐Power Artificial Synapses
Authors: Cao Yuanyuan , Liu Yilun , Yang Yafen , Li Qingxuan , Zhang Tianbao , Ji Li , Zhu Hao , Chen Lin , Sun Qingqing , Zhang David Wei 
Published: March 2023

AbstractAdvanced synaptic devices capable of neuromorphic data processing are widely studied as the building block in the next‐generation computing architecture for artificial intelligence applications. Due to its fast speed, low power, and excellent complementary metal‐oxide‐semiconductor (CMOS) compatibility, Zr‐doped HfO2 (HZO)‐based ferroelectric tunnel junction (FTJ) are promising candidates as a new type of non‐volatile memory for neuromorphic device applications. Here, an experimental approach is reported to enhance the tunneling efficiency and the electrical performance by engineering the dielectric stack of the FTJ device. By sandwiching the HZO ferroelectric layer with ZrO2 and Al2O3 layers, the FTJ tunneling current is greatly increased with lowered barrier, larger remnant polarization (Pr), and tunneling electrical resistance ratio as well as suppressed leakage current have been achieved. The optimized FTJ devices are further implemented emulating synaptic functions with demonstrated short/long‐term synaptic plasticity and spike‐timing‐dependent plasticity behaviors. Such engineering in HZO‐based FTJ devices can be promising and instructive for the realization of future ultra‐low‐power and CMOS‐compatible neuromorphic devices and systems.
Recent Development in the Catalytic Applications of Pd‐NHC (NHC=N‐Heterocyclic Carbene) Compounds in Amide C−N Activation Reactions
Authors: Shao Han , Ma Yunhua , Lin Tenglong , Li Wanfang , Deng Qinyue 
Published: March 2023

AbstractPalladium‐catalyzed C−N bond activation of amide is a important but very challenging research area in organic chemistry. This reaction represents a powerful and straightforward method for the preparation of various carbonyl compounds under mild reaction conditions. One notable advancement in this area is related to the design and development of multifunctional NHC ligands and other throw‐away ligands. The reasonable design of ligands could not only improve the activity of catalyst, but also help to adjust the reaction selectivity. In this review, we summarized the structure‐activity relationship of those catalysts with different ligand skeletons and their applications in cross‐coupling reactions including Suzuki‐Miyaura coupling, Buchwald‐Hartwig amination and direct C−H acylation, via amide C−N bond activation. On this basis, we analyze the current bottlenecks encountered in Pd‐NHC‐catalyzed amide C−N activation reactions, and envisage the future development of this field.
closo‐TeB5Cl5 und closo‐TeB11Cl11 – polyedrische Telluraborane mit ungewöhnlich langen Raumdiagonalen: Synthese und Bindungsstudien an innovativen oktaedrischen und ikosaedrischen Geometrien
Authors: Keller Willi , Ballmann Joachim , Sárosi Menyhárt B. , Fanfrlík Jindřich , Hnyk Drahomír 
Published: March 2023

AbstractDie sechs‐ und zwölfgliedrigen polyedrischen Telluraborane closo‐TeB5Cl5 (1) und closo‐TeB11Cl11 (2) ließen sich ausgehend von einfachen, binären Molekülen in einem Eintopf‐Verfahren durch Co‐pyrolyse von B2Cl4 mit TeCl4 unter Vakuumbedingungen bei Temperaturen zwischen 360 °C und 400 °C herstellen. Die im Vakuum blass‐weiß sublimierbaren Verbindungen wurden mit Hilfe von ein‐ und zweidimensionalen 11B NMR und hochauflösender Massenspektrometrie charakterisiert. Sowohl Ab‐initio/GIAO/NMR‐ als auch DFT/ZORA/NMR‐Rechnungen untermauern die oktaedrischen bzw. ikosaedrischen Geometrien für 1 und 2, wie aufgrund der Anzahl der für closo‐Cluster typischen 2n+2 Gerüstelektronenzahl zu erwarten war. Die oktaedrische Struktur von 1 wurde durch Röntgenbeugung an einem inkommensurabel modulierten Kristall bestätigt. Die jeweilige Bindungssituation wurde mit Hilfe des IBO‐Ansatzes (Intrinsic Bond Orbital) analysiert. Clusterverbindung 1 ist das erste Beispiel für ein polyedrisches Telluraboran mit weniger als 10 Gerüstatomen.
Stochastic Bullvalene Architecture Modulates Structural Rigidity in π‐Rich Macromolecules
Authors: Pomfret Meredith N. , Sun Peiguan B. , Huang Zheng , Freund Anna C. , Miyoshi Toshikazu , Golder Matthew R. 
Published: March 2023

AbstractThe synthesis and processing of π‐rich polymers found in novel electronics and textiles is difficult because chain stiffness leads to low solubility and high thermal transitions. The incorporation of “shape‐shifting” molecular cages into π‐rich backbone provides an ensemble of structural kinks to modulate chain architecture via a self‐contained library of valence isomers. In this work, we report the synthesis and characterization of (bullvalene‐co‐phenylene)s that feature smaller persistence lengths than a prototypical rigid rod polymer, poly(p‐phenylene). By varying the amount of bullvalene incorporation within a poly(p‐phenylene) chain (0–50 %), we can tune thermal properties and solution‐state conformation. These features are caused by stochastic bullvalene isomers within the polymer backbone that result in kinked architectures. Synthetically, bullvalene incorporation offers a facile method to decrease structural rigidity within π‐rich materials without concomitant crystallization. VT NMR experiments confirm that these materials remain dynamic in solution, offering the opportunity for future stimuli‐responsive applications.
A Hydrazine‐Nitrate Flow Battery Catalyzed by a Bimetallic RuCo Precatalyst for Wastewater Purification along with Simultaneous Generation of Ammonia and Electricity
Authors: Zhu Weijie , Zhang Xiaoyi , Yao Fen , Huang Runping , Chen Yue , Chen Chaolong , Fei Jiawei , Chen Yunqing , Wang Zhoucheng , Liang Hanfeng 
Published: March 2023

AbstractThe traditional technologies for industrial and agricultural effluent treatment are often energy‐intensive. Herein, we suggest an electrochemical redox strategy for spontaneous and simultaneous decontamination of wastewater and generation of both fuels and electricity at low cost. Using hydrazine and nitrate effluents as a demonstration, we propose a hydrazine‐nitrate flow battery (HNFB) that can efficiently purify the wastewater and meanwhile generate both ammonia fuel and electricity with the assistance of our developed bimetallic RuCo precatalyst. Specifically, the battery delivers a peak power density of 12 mW cm−2 and continuously operates for 20 h with an ammonia yield rate of ca. 0.38 mmol h−1 cm−2 under 100 mA cm−2. The generated electricity can further drive a hydrazine electrolyzer to produce hydrogen fuel. Our work provides an alternative pathway to purify wastewater and generate high value‐added fuels at low cost.
Carbon‐Anchored Molybdenum Oxide Nanoclusters as Efficient Catalysts for the Electrosynthesis of Ammonia and Urea
Authors: Sun Mengmiao , Wu Guanzheng , Jiang Jiadi , Yang Yidong , Du Aijun , Dai Lei , Mao Xin , Qin Qing 
Published: March 2023

AbstractThe electrochemical NO3− reduction and its coupling with CO2 can provide novel and clean routes to synthesize NH3 and urea, respectively. However, their practical application is still impeded by the lack of efficient catalysts with desirable Faradaic efficiency (FE) and yield rate. Herein, we report the synthesis of molybdenum oxide nanoclusters anchored on carbon black (MoOx/C) as electrocatalyst. It affords an outstanding FE of 98.14 % and NH3 yield rate of 91.63 mg h−1 mgcat.−1 in NO3− reduction. Besides, the highest FE of 27.7 % with a maximum urea yield rate of 1431.5 μg h−1 mgcat.−1 toward urea is also achieved. The formation of electron‐rich MoOx nanoclusters with highly unsaturated metal sites in the MoOx/C heterostructure is beneficial for enhanced catalytic performance. Studies on the mechanism reveal that the stabilization of *NO and *CO2NOOH intermediates are critical for the NH3 and urea synthesis, respectively.
Research and performance evaluation of modified nano‐silica gel plugging agent
Authors: Shu Zheng , Qi Yong , Luo Pingya 
Published: March 2023

AbstractDue to the difficulties in plugging high‐pressure injection wells, the short period of plugging, and the use of modified nano‐silica, a novel chemical gel plugging agent has been created. Modification of silica using silane coupling agents, and using the aqueous free radical polymerization method synthesized chemical plugging agent with AM, AA, and DMDAAC. The optimum synthesis conditions were screened by single‐factor analysis: mass ratio m(AM):m(AA):m(DMDAAC) = 8:1.5:1, modified nano‐silica concentration of 1.0%, total monomer mass concentration of 8.0%, initiator concentration of 0.3%, the cross‐linker concentration of 0.4%, and coagulant concentration of 0.6%. The performance of the chemical plugging agent was evaluated under the target oil formation conditions. The experimental results showed that the chemical plugging agent exhibited good temperature resistance at 40–100°C, good salt resistance at mineralization (0.5–2.5) × 104 mg/L, and the chemical plugging agent breaks through pressure gradients of 1.12, 15.42 and 90.15 MPa/m in the wellbore, fracture and core, respectively, compared with most gel plugging agents, this plugging agent is more suitable for sealing with pressure work. After adding the breakout agent, the fluid after breakout is fluid‐like with low viscosity, which is convenient for reverse discharge and will not cause harm to the reservoir and ensure the subsequent normal construction operation.
A Composite of Nb2O5 and MoO2 as a High‐Capacity High‐Rate Anode Material for Lithium‐Ion Batteries
Authors: Wheeler‐Jones Evangeline C. , Loveridge Melanie J. , Walton Richard I. 
Published: March 2023

AbstractA composite of Nb2O5 and MoO2 was synthesised using a hydrothermal reaction (225 °C) followed by a short heat‐treatment step (600 °C) to achieve a high‐capacity, high‐rate anode for lithium‐ion battery applications. The composite was shown via powder X‐ray diffraction and electron microscopy to be an intimate mix of individual oxide particles rather than an atomically mixed oxide material, and shown by X‐ray fluorescence spectroscopy (XRF) to contain a 45 : 55 ratio of Nb : Mo. This material is demonstrated to show notable rate capability in lithium (Li) half‐cell cycling and rate tests. When cycled at 100 °C the material achieved over 100 mAh g−1 even after 400 cycles and shows a stable reversible capacity of 514 mAh g−1 (at 1 C), realising its theoretical capacity. The composite shows electrochemical results comparable to Nb2O5:C composites yet achieves far higher capacities at low‐rate due to the MoO2 content.
Integrating computer‐aided modeling into distance learning to teach molecular genetics during the COVID‐19 pandemic
Authors: Karaismailoğlu Fatma , Yildirim Mehtap 
Published: March 2023

AbstractThis article presents the integration of Tinkercad, a free online modeling program that allows students to model molecular genetic concepts, into the distance learning process. The students had the opportunity to learn molecular genetics in a fun and more efficient way in spite of the limitations of the COVID‐19 lockdown, and, in this respect, it can be said that the application was a good compensation for face‐to‐face learning.
Master this four‐step approach to violence prevention training, no matter your budget
Authors: Sutton Halley 
Published: March 2023

“One thing that most campuses are really great at [for violence prevention training] are those one‐off programs — things you see at freshman orientation, or that Red Zone period, the first pivotal weeks we know campus violence is at its highest,” Tawney Alonzo, Director of Training at Title IX Solutions, said.