bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multiple Non‐Covalent Cross‐Linked Multifunctional Strong Hemostatic Agent for Dynamic Exposure Hemostasis
Authors: Ji Weijun , Li Sidi , Hou Xin , Zhao Jin , Yuan Xubo 
Published: December 2023

AbstractTrauma requires immediate hemostasis during primary care, as well as durable hemostasis that can withstand dynamic wound exposure. Although current hemostatic materials can treat bleeding sites in emergency situations, their mechanical strength and storage conditions limit their practical application. The simultaneous combination of good mechanical properties, storage stability, biocompatibility, and rapid hemostasis of hemostatic materials remains a challenge. In this paper, a novel hemostatic material based on multiple non‐covalent bond crosslinking, which has excellent mechanical properties, good biocompatibility, storage stability, and rapid hemostasis ability, is reported. Under the drive of multiple non‐covalent bonds, the flowability of hydrogel micro‐modules (HM) decreases rapidly within 20 s after exposure to physiological saline. The HM form a gel barrier with a tensile strength of 62.10 kPa and an elongation at break of 1976% under multiple non‐covalent bonding. Furthermore, the mechanical properties do not change significantly after 30 days of storage. Cell viability is maintained at over 80% after 3 days of incubation with the cells, and the hemolysis test shows a very low hemolysis rate (2.08%). The hemostatic gel formed by HM effectively prevents secondary bleeding in dynamic hemostasis experiments simulating transportation. This work provides a hemostatic material with comprehensive properties for practical applications.
Exudate‐Induced Gelatinizable Nanofiber Membrane with High Exudate Absorption and Super Bactericidal Capacity for Bacteria‐Infected Wound Management
Authors: Wang Wenjie , Yu Qiao , Shao Zijian , Guo Yuxuan , Wang Yilin , Yang Ye , Zhao Weifeng , Zhao Changsheng 
Published: December 2023

AbstractInvasion of bacteria and continuous oozing of exudate are significant causes of interference with the healing of infected wounds. Therefore, an exudate‐induced gelatinizable and near‐infrared (NIR)‐responsive nanofiber membrane composed of polyvinyl alcohol (PVA), carboxymethyl chitosan (CMC), and Fe‐doped phosphomolybdic acid (Fe‐PMA) with exceptional exudate absorption capacity and potent bactericidal efficacy is developed and denoted as the PVA‐FP‐CMC membrane. After absorbing exudate, the fiber membrane can transform into a hydrogel membrane, forming coordination bonds between the Fe‐PMA and CMC. The unique exudate‐induced gelation process imparts the membrane with high exudate absorption and retention capability, and the formed hydrogel also traps the bacteria that thrive in the exudate. Moreover, it is discovered for the first time that the Fe‐PMA exhibits an enhanced photothermal conversion capability and photocatalytic activity compared to the PMA. Therefore, the presence of Fe‐PMA provides the membrane with a photothermal and photodynamic therapeutic effect for killing bacteria. The PVA‐FP‐CMC membrane is proven with a liquid absorption ratio of 520.7%, a light‐heat conversion efficiency of 41.9%, high‐level generation of hydroxyl radical (•OH) and singlet oxygen (1O2), and a bacterial killing ratio of 100% for S. aureus and 99.6% for E. coli. The treatment of infected wounds on the backs of rats further confirms the promotion of wound healing by the PVA‐FP‐CMC membrane with NIR irradiation. Overall, this novel functional dressing for the synergistic management of bacteria‐infected wounds presents a promising therapeutic strategy for tissue repair and regeneration.
Distinguishing Molecular Mechanical Action from Photothermal and Photodynamic Behavior
Authors: Beckham Jacob L. , Bradford Thomas S. , Ayala‐Orozco Ciceron , Santos Ana L. , Arnold Dallin , van Venrooy Alexis R. , García‐López Víctor , Pal Robert , Tour James M. 
Published: December 2023

AbstractMolecular motors (MM) are molecular machines, or nanomachines, that rotate unidirectionally upon photostimulation and perform mechanical work on their environment. In the last several years, it has been shown that the photomechanical action of MM can be used to permeabilize lipid bilayers, thereby killing cancer cells and pathogenic microorganisms and controlling cell signaling. The work contributes to a growing acknowledgement that the molecular actuation characteristic of these systems is useful for various applications in biology. However, the mechanical effects of molecular motion on biological materials are difficult to disentangle from photodynamic and photothermal action, which are also present when a light‐absorbing fluorophore is irradiated with light. Here, an overview of the key methods used by various research groups to distinguish the effects of photomechanical, photodynamic, and photothermal action is provided. It is anticipated that this discussion will be helpful to the community seeking to use MM to develop new and distinctive medical technologies that result from mechanical disruption of biological materials.
A Route to Complex Materials Consisting of Multiple Crystalline Phases Ir‐Ru‐IrxRu1‐xO2 as Multifunctional Electrocatalysts
Authors: Knani Sarra , Hajjar Perla , Lacour Marie‐Agnès , van der Lee Arie , Oliviero Erwan , Petit Eddy , Flaud Valerie , Cambedouzou Julien , Tingry Sophie , Napporn Teko W. , Cornu David , Holade Yaovi 
Published: December 2023

AbstractThe synthesis of catalytic materials containing active sites of various oxidation states (metal, oxide, etc.) for the dual use in reduction and oxidation reactions remains challenging because most of the reported methods for the metallic state are often incompatible with those for the oxide state. A new methodology is reported for the synthesis of a library of bimetallic metal‐oxide materials containing three crystalline phases Ir‐Ru‐IrxRu1‐xO2 by combining the calcination under air and the polymerization of aniline in the presence of IrCl3 and RuCl3 precursors. Morphology, structure, and surface oxidation state studies (XRD, SEM/EDX, S/TEM, XPS) confirm the hypothesis that IrCl3 evolves to Ir while RuCl3 evolves to RuO2 during the calcination under air. An Ir:Ru atomic ratio of 50:50 can be converted into a heterogeneous nanostructure composed of Ir, Ru, and IrxRu1‐xO2 to date, with remarkable catalytic activity for both hydrogen evolution reaction (HER) with a small overpotential of 40 mV and oxygen evolution reaction (OER) with a small overpotential of 290 mV at the metric current density of 10 mA cm−2 in 0.5 m H2SO4. The results can serve as a platform for the development of efficient multifunctional materials for practical use in both catalytic oxidation and reduction reactions.
Giant Superbunching Emission from Mesoscopic Perovskite Emitter Clusters
Authors: Qiang Gang , Cai Hongbing , Rasmita Abdullah , He Ruihua , Zhou Lei , Ru Shihao , Cai Xiangbin , Liu Xiaogang , Gao Weibo 
Published: December 2023

AbstractPhoton superbunching, as a crucial resource for photonic quantum technologies, is investigated in several systems. This phenomenon can be induced by both coherent collective spontaneous processes such as superfluorescence and superradiance, and cascaded emission. Although superbunching emission induced by superfluorescence and cascaded emission is demonstrated recently in perovskite quantum dot (QD) superlattice and single perovskite QD, the effect itself is not that strong, especially in the former case with a second‐order photon correlation g(2)(0) only slightly larger than 2. Here, the superbunching emission from mesoscopic CsPbBr3 emitter clusters is reported. The higher temperature and excitation power are found to suppress the superbunching effect significantly. Compared with the former results in the literature, under the same experimental conditions, that is, temperature and excitation power, much larger g(2)(0) with the maximum value of 21 being achieved at 1.6 K with an excitation power of 0.1 µW is observed. The discoveries here improve the understanding of superbunching emission in perovskite‐based materials and will enable their application in developing multi‐photon light sources for photonic quantum technologies.
The Faraday Effect and Phase Transition in the CH3NH3PbI3 Halide Perovskite Single Crystal
Authors: Shumitskaya Anastasia A. , Kozlov Vadim O. , Selivanov Nikita. I. , Stoumpos Constantinos C. , Zapasskii Valerii S. , Kapitonov Yury V. , Ryzhov Ivan I. 
Published: December 2023

AbstractThe spin degree of freedom of charge carriers in halide‐perovskite semiconductors can be highly useful for information photonics applications. The Faraday effect is known to be the best indicator of paramagnetism of the material and of the spin‐light interaction. In this work, the Faraday effect is demonstrated, for the first time, in a hybrid organic–inorganic halide perovskite MAPbI3 (MA+ = CH3NH). The Faraday rotation and birefringence are measured across the tetragonal‐cubic phase transition at 327 K. The Faraday rotation is strongly suppressed below the phase transition temperature due to anisotropy (linear birefringence) of the tetragonal crystal phase. The situation changes drastically above the phase transition temperature, when the crystal becomes optically isotropic. The emerging Faraday rotation obeys the Curie law, demonstrating its population‐related paramagnetic nature. This observation opens new prospects for application of these systems and for their investigations using methods of the polarization noise spectroscopy applicable to optically anisotropic materials.
Hybrid‐Phase Assisted Amplitude and Phase Control Using Full‐Space Metasurface
Authors: Wang Chaohui , Xu He‐Xiu , Liu Tong , Zhang Fan 
Published: December 2023

AbstractAchieving independent control of phase and amplitude is pivotal yet challenging for electromagnetic (EM) wave manipulation. Metasurface provides an efficient recipe to this challenge, but most of the work reports so far are still confined in half space (transmission or reflection) and manipulation of linearly polarized EM waves, restricting itself from integrating more functionalities with complex wavefronts into one optoelectronic device. Here, a hybrid phase approach synthesizing propagation and geometric phases is proposed to achieve independent and arbitrary control of amplitude and phase response for circularly polarized (CP) wave in full space by using a non‐interleaved single‐celled metasurface. To validate the concept, a full‐space dual‐channel meta‐hologram is experimentally demonstrated, manifesting images of letters “T” and “R” at lower and upper frequencies (f1 and f2), respectively. The finding of full‐space metasurface opens new possibilities to control CP waves by simultaneous amplitude and phase modulations, which is important for high‐capacity wireless communications, as well as sophisticated functionality, and other advanced meta‐devices.
Enhancement‐Mode Phototransistors Based on β‐Ga2O3 Microflakes Fabricated by Focused Ion Beams
Authors: Yang Huarong , Cheng Tong‐Huai , Ouyang Huijia , Xin Qian , Liu Yiyuan , Meng Miao , Yu Feng Hua , Luo Feng , Mu Wenxiang , Jia Zhitai , Tao Xutang 
Published: December 2023

AbstractThis study introduces focused ion beam (FIB) processing for the first time to etch and thin β‐Ga2O3 microflakes, while exploring the effect of their thicknesses on the phototransistor performance. It is found that when the β‐Ga2O3 microflakes reach a certain thickness, the phototransistors switch from the depletion mode to the enhancement mode, exhibiting extremely low dark current without a gate voltage. The enhancement‐mode phototransistor prepared using this method demonstrates a photo‐dark current ratio as high as 2.3 × 105, a responsivity of 6.3 × 104 A W−1, and an external quantum efficiency of 3.1 × 107% when irradiated with incident light at a wavelength of 254 nm and a power density of 8 µW cm−2. Additionally, the device has a rise time of 43 ms and a fall time of 28 ms, respectively. By using FIB processing to etch and thin β‐Ga2O3 microflakes, this study effectively overcomes the poor controllability and low repeatability associated with the traditional mechanical exfoliation method, as well as the residual impurities from the plasma etching method. This opens up a new avenue for fabricating the high‐performance, low‐dimensional phototransistors based on β‐Ga2O3 with high repeatability and controllability.
Advances in Reversible Luminescence Modification and Applications of Inorganic Phosphors Based on Chromism Reaction
Authors: Haider Asif Ali , Zhao Heping , Zi Yinzhu , Xu Zan , Bai Xue , Cun Yangke , Liu Yue , Babeker Hassan , Saeed Abdul , Song Zhiguo , Qiu Jianbei , Huang Anjun , Liao Jiayan , Yang Zhengwen 
Published: December 2023

AbstractThe reversible luminescence modification of inorganic phosphors has emerged as a promising field, enabling innovative applications such as optical memory, multiple anti‐counterfeiting, and photoswitches. Traditional luminescence modulation techniques, such as core–shell structure design and energy transfer‐related luminescent ions regulation, face challenges in achieving reversible luminescence modification. Chromism induces reversible color changes in materials when stimulated by external fields such as electricity, heat, and light. Combining chromism with luminescence enables the creation of chromism‐driven reversible luminescence manipulation in a single material. This review summarizes recent advances in reversible luminescence modification of inorganic phosphors based on chromism reaction and highlights their potential applications in optical data storage, fingerprint acquisition, and anti‐counterfeiting areas. The potential prospective research directions are also discussed and the challenges and opportunities of chromism‐based reversible luminescent materials are presented for further extended applications.
Novel Cr3+‐Doped Garnet Phosphor with Broadband Efficient Far‐Red Emission for Photochrome Matching Plant‐Lighting
Authors: Dai Xiangyi , Zou Xikun , Zhang Haoran , Chen Weibin , Yang Chaowei , Molokeev Maxim S. , Xia Zhiguo , Liu Yingliang , Zhang Xuejie , Zheng Mingtao , Lei Bingfu 
Published: December 2023

AbstractCr3+‐doped phosphors are highly recognized in various fields for their remarkable luminous efficiency and spectral flexibility, including modern agriculture and horticulture. However, the shortage of suitable Cr3+‐doped phosphors for far‐red LED devices has inhibited their popularization in plant lighting. Herein, an innovative Cr3+‐doped phosphor Ca2YAl3Ge2O12:Cr3+ (CYAG:Cr3+), achieving a broad far‐red emission at 770 nm upon 450 nm blue light excitation is designed. The optimal CYAG:Cr3+ phosphor exhibits a high internal quantum yield of 78.2% and low thermal‐quenching behavior of 85%@373 K. Thus, the fabricated phosphor‐converted LEDs (pc‐LEDs) for plant far‐red lighting have a high output power of 33.3 mW and photovoltaic conversion efficiency of 11.5% at 100 mA. The potential of CYAG:Cr3+ in plant lighting is assessed by supplementing the far‐red lighting of Italian lettuce with fabricated pc‐LEDs, and the biomass of Italian lettuce is significantly increased by 33%. The successful development of CYAG:Cr3+ phosphors provides a high‐quality option for plant far‐red light devices and further stimulates the development of new Cr3+‐doped plant‐lighting phosphors.
Next‐Generation Vitrimers Design through Theoretical Understanding and Computational Simulations
Authors: Li Ke , Tran Nam Van , Pan Yuqing , Wang Sheng , Jin Zhicheng , Chen Guoliang , Li Shuzhou , Zheng Jianwei , Loh Xian Jun , Li Zibiao 
Published: December 2023

AbstractVitrimers are an innovative class of polymers that boast a remarkable fusion of mechanical and dynamic features, complemented by the added benefit of end‐of‐life recyclability. This extraordinary blend of properties makes them highly attractive for a variety of applications, such as the automotive sector, soft robotics, and the aerospace industry. At their core, vitrimer materials consist of crosslinked covalent networks that have the ability to dynamically reorganize in response to external factors, including temperature changes, pressure variations, or shifts in pH levels. In this review, the aim is to delve into the latest advancements in the theoretical understanding and computational design of vitrimers. The review begins by offering an overview of the fundamental principles that underlie the behavior of these materials, encompassing their structures, dynamic behavior, and reaction mechanisms. Subsequently, recent progress in the computational design of vitrimers is explored, with a focus on the employment of molecular dynamics (MD)/Monte Carlo (MC) simulations and density functional theory (DFT) calculations. Last, the existing challenges and prospective directions for this field are critically analyzed, emphasizing the necessity for additional theoretical and computational advancements, coupled with experimental validation.
Enhanced Charge Separation in Nanoporous BiVO4 by External Electron Transport Layer Boosts Solar Water Splitting
Authors: Yang Xiaotian , Cui Jianpeng , Lin Luxue , Bian Ang , Dai Jun , Du Wei , Guo Shiying , Hu Jingguo , Xu Xiaoyong 
Published: December 2023

AbstractThe optimization of charge transport with electron‐hole separation directed toward specific redox reactions is a crucial mission for artificial photosynthesis. Bismuth vanadate (BiVO4, BVO) is a popular photoanode material for solar water splitting, but it faces tricky challenges in poor charge separation due to its modest charge transport properties. Here, a concept of the external electron transport layer (ETL) is first proposed and demonstrated its effectiveness in suppressing the charge recombination both in bulk and at surface. Specifically, a conformal carbon capsulation applied on BVO enables a remarkable increase in the charge separation efficiency, thanks to its critical roles in passivating surface charge‐trapping sites and building external conductance channels. Through decorated with an oxygen evolution catalyst to accelerate surface charge transfer, the carbon‐encased BVO (BVO@C) photoanode manifests durable water splitting over 120 h with a high current density of 5.9 mA cm−2 at 1.23 V versus the reversible hydrogen electrode (RHE) under 1 sun irradiation (100 mW cm−2, AM 1.5 G), which is an activity‐stability trade‐off record for single BVO light absorber. This work opens up a new avenue to steer charge separation via external ETL for solar fuel conversion.
Skin‐Inspired Capacitive Flexible Tactile Sensor with an Asymmetric Structure for Detecting Directional Shear Forces
Authors: Yu Haibo , Guo Hongji , Wang Jingang , Zhao Tianming , Zou Wuhao , Zhou Peilin , Xu Zhuang , Zhang Yuzhao , Zheng Jianchen , Zhong Ya , Wang Xiaoduo , Liu Lianqing 
Published: December 2023

AbstractFlexible pressure sensors based on micro‐/nanostructures can be integrated into robots to achieve sensitive tactile perception. However, conventional symmetric structures, such as pyramids or hemispheres, can sense only the magnitude of a force and not its direction. In this study, a capacitive flexible tactile sensor inspired by skin structures and based on an asymmetric microhair structure array to perceive directional shear force is designed. Asymmetric microhair structures are obtained by two‐photon polymerization (TPP) and replication. Owing to the features of asymmetric microhair structures, different shear force directions result in different deformations. The designed device can determine the directions of both static and dynamic shear forces. Additionally, it exhibits large response scales ranging from 30 Pa to 300 kPa and maintains high stability even after 5000 cycles; the final relative capacitive change (ΔC/C0) is <2.5%. This flexible tactile sensor has the potential to improve the perception and manipulation ability of dexterous hands and enhance the intelligence of robots.
BHLHE40 Inhibits Ferroptosis in Pancreatic Cancer Cells via Upregulating SREBF1
Authors: Cao Yizhi , Wang Xuelong , Liu Yang , Liu Pengyi , Qin Jiejie , Zhu Youwei , Zhai Shuyu , Jiang Yongsheng , Liu Yihao , Han Lijie , Luo Jiaxin , Zhang Ronghao , Shi Minmin , Wang Liwen , Tang Xiaomei , Xue Meilin , Liu Jia , Wang Weishen , Wen Chenlei , Deng Xiaxing , Peng Chenghong , Chen Hao , Cheng Dongfeng , Jiang Lingxi , Shen Baiyong 
Published: December 2023

AbstractPancreatic cancer (PCa) is one of the most fatal human malignancies. The enhanced infiltration of stromal tissue into the PCa tumor microenvironment limits the identification of key tumor‐specific transcription factors and epigenomic abnormalities in malignant epithelial cells. Integrated transcriptome and epigenetic multiomics analyses of the paired PCa organoids indicate that the basic helix‐loop‐helix transcription factor 40 (BHLHE40) is significantly upregulated in tumor samples. Increased chromatin accessibility at the promoter region and enhanced mTOR pathway activity contribute to the elevated expression of BHLHE40. Integrated analysis of chromatin immunoprecipitation‐seq, RNA‐seq, and high‐throughput chromosome conformation capture data, together with chromosome conformation capture assays, indicate that BHLHE40 not only regulates sterol regulatory element‐binding factor 1 (SREBF1) transcription as a classic transcription factor but also links the enhancer and promoter regions of SREBF1. It is found that the BHLHE40‐SREBF1‐stearoyl‐CoA desaturase axis protects PCa cells from ferroptosis, resulting in the reduced accumulation of lipid peroxidation. Moreover, fatostatin, an SREBF1 inhibitor, significantly suppresses the growth of PCa tumors with high expressions of BHLHE40. This study highlights the important roles of BHLHE40‐mediated lipid peroxidation in inducing ferroptosis in PCa cells and provides a novel mechanism underlying SREBF1 overexpression in PCa.
Total Structure, Structural Transformation and Catalytic Hydrogenation of [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2− Constructed from Twisted Cu13 Units
Authors: Zhou Huimin , Duan Tengfei , Lin Zidong , Yang Tao , Deng Huijuan , Jin Shan , Pei Yong , Zhu Manzhou 
Published: December 2023

AbstractHerein, a remarkable achievement in the synthesis and characterization of an atomically precise copper‐hydride nanocluster, [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2− via a mild one‐pot reaction is presented. Through X‐ray crystallography analysis, it is revealed that [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2− exhibits a unique shell–core–shell structure. The inner Cu29 kernel is composed of three twisted Cu13 units, connected through Cu4 face sharing. Surrounding the metal core, two Cu6 metal shells, resembling a protective sandwich structure are observed. This arrangement, along with intracluster π···π interactions and intercluster C─H···F─C interactions, contributes to the enhanced stability of [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2−. The presence, number, and location of hydrides within the nanocluster are established through a combination of experimental and density functional theory investigations. Notably, the addition of a phosphine ligand triggers a fascinating nanocluster‐to‐nanocluster transformation in [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2−, resulting in the generation of two nanoclusters, [Cu14(SC6H3F2)3(PPh3)8H10]+ and [Cu13(SC6H3F2)3(P(PhF)3)7H10]0. Furthermore, it is demonstrated that [Cu41(SC6H3F2)15Cl3(P(PhF)3)6(H)25]2− exhibits catalytic activity in the hydrogenation of nitroarenes. This intriguing nanocluster provides a unique opportunity to explore the assembly of M13 units, similar to other coinage metal nanoclusters, and investigate the nanocluster‐to‐nanocluster transformation in phosphine and thiol ligand co‐protected copper nanoclusters.