bluuebunny/crossref_metadata_2025_split huggingface dataset:
Emulating Neuromorphic and In‐Memory Computing Utilizing Defect Engineering in 2D‐Layered WSeOx and WSe2 Thin Films by Plasma‐Assisted Selenization Process
Authors: Chaudhary Mayur , Yang Tzu‐Yi , Chen Chieh‐Ting , Lai Po‐Chien , Hsu Yu‐Chieh , Peng Yu‐Ren , Kumar Ashish , Lee Chih‐Hao , Chueh Yu‐Lun 
Published: June 2023

AbstractThe neuromorphic and in‐memory computing using memristors are promising for the building of the next generation computing systems. However, the diffusion dynamics of metal ions/atoms inside the switching medium impose variability in conducting filament (CF) formation, thus limiting their use in von‐Neumann architecture. The precise modulation on the diffusion of metal ions/atoms and their reduction/oxidation probability holds promise to overcome the speed, size, and energy issues of present‐day computers. Here, this study shows that the diffusion of metal ions can be modulated by defects inside the switching medium and confines metal filaments in a precise 1D channel. This filament confinement by the defect engineering leads to an anomalous switching mechanism with two interchangeable modes: unipolar threshold and bipolar modes. The variation between two modes can be modulated by controlling defects in the structures, leading to a uniform switching with low SET/RESET voltage variations of 17.3% and −17.6%, respectively. Moreover, the convolutional neural network is implemented to emulate synaptic plasticity and image recognition to achieve recognition accuracy of 87% due to a highly linear weight update, demonstrating its potential for in‐memory computing.
Sulfurized Colloidal Quantum Dot/Tungsten Disulfide Multi‐Dimensional Heterojunction for an Efficient Self‐Powered Visible‐to‐SWIR Photodetector
Authors: Kim Sol‐Hee , Lee Donggyu , Moon Sanghyun , Choi Jae‐Hwan , Kim Dongeon , Kim Jihyun , Baek Se‐Woong 
Published: June 2023

AbstractEmerging semiconducting materials show considerable promise for application in the development of next‐generation optoelectronic devices. In particular, broadband light detection is crucial in various applications, including multispectral imaging and cognition. Therefore, tuning the physical properties of semiconductors and thereby building an efficient heterojunction are important for achieving a high‐performance photodetection device. In this study, a heavy p‐type colloidal quantum dot (CQD) is synthesized through solution‐based sulfurization. The resulting cubic‐shaped CQD exhibits broadband and strong absorption, which enable its broadband absorption. Further, a multidimensional 0D‐2D heterojunction is developed using p‐type CQD and n‐type tungsten disulfide (WS2). This efficient p‐n junction is operated as a fully self‐powered optical sensor and phototransistor under various light illumination conditions. Under the self‐powered condition, the CQD/WS2 heterojunction device exhibits 440‐ and 200‐fold‐higher responsivity and detectivity, respectively, than pristine WS2.
Remarkably Enhanced Charge Density of Inorganic Material Via Regulating Contact Barrier Difference and Charge Trapping for Triboelectric Nanogenerator
Authors: Wang Jian , Li Gui , Xu Shuyan , Wu Huiyuan , Fu Shaoke , Shan Chuncai , He Wencong , Zhao Qionghua , Li Kaixian , Hu Chenguo 
Published: June 2023

AbstractCurrently, the research on improving charge density of charge‐excitation triboelectric nanogenerators (CE‐TENG) mainly focuses on surface modification and thinning of organic polymer materials. However, to increase durability and output, the exploration of high permittivity and high‐thickness inorganic materials is important for extensive applications. Meanwhile, the physical mechanism of air ionization caused by air breakdown during secondary self‐charge excitation (SSCE) needs to be explored. Herein, this study proposes a new strategy for CE‐TENG based on inorganic materials by de‐trapping reverse charge and increasing the contact barrier difference to obtain high charge density and achieve secondary self‐charge excitation. SSCE of three types of films with different leakage currents are evaluated according to their trapping and de‐trapping reverse charges. It is found that the trap distribution of dielectric films with larger leakage currents are mostly shallow‐level traps, whose de‐trapping ability becomes stronger after reverse charge injection. By regulating the contact barrier difference with thin organic polymer on thick inorganic high permittivity material, this study has achieved a high charge density of 1310 µC m−2 with a fast start‐up time of SSCE, which is a new record for the charge density of inorganic materials. This study promotes TENG of inorganic materials toward high‐energy output applications.
Suppressing Thermal Migration by Fine‐Tuned Metal‐Support Interaction of Iron Single‐Atom Catalyst for Efficient ORR
Authors: Wang Jingwen , Hu Chuangang , Wang Liguang , Yuan Yang , Zhu Kai , Zhang Qing , Yang Lin , Lu Jun , Bai Zhengyu 
Published: June 2023

AbstractAtomically dispersed iron–nitrogen–carbon (FeNC) catalysts have sparked great interest by virtue of the highly active isolated FeN4 sites. The catalysts with pyrolysis treatment usually induce inevitable FeN4 sites agglomeration, leading to fast degradation in catalytic activity. Herein, a pre‐coordinated protection strategy is proposed to eliminate the aggregation of Fe atoms by suppressing the thermal migration during the pyrolysis process. To this end, the S atom is introduced into the graphitic support by enhancing the metal‐support interaction. The proposed atomic structure is revealed by multiple advanced characterizations including Fe Mössbauer spectroscopy, X‐ray absorption spectroscopy, and theoretical calculations. By employing S atom into the structure, the center atom Fe is oxidized to a higher valence, improving the bonding energy with the graphitic support, which accordingly endows catalyst anti‐sintering capacity and improved catalytic activity. Compared to commercial Pt/C and the reported catalyst with secondary pyrolysis, the proposed catalysts exhibit enhanced ORR activity in alkaline media (E1/2 = 0.91 V). This work provides a new avenue toward optimizing and improving ORR performance of atomically dispersed Fe catalysts.
Blending Layered Cathode with Olivine: An Economic Strategy for Enhancing the Structural and Thermal Stability of 4.65 V LiCoO2
Authors: Yan Yawen , Zheng Yichun , Zhang Haitang , Chen Jianken , Zeng Guifan , Wang Lingling , Zhang Baodan , Zhou Shiyuan , Tang Yonglin , Fu Ang , Zheng Lirong , Huang Huan , Zou Yue , Wang Chuan-Wei , Kuai Xiaoxiao , Sun Yang , Qiao Yu , Sun Shi‐Gang 
Published: June 2023

AbstractThe intrinsic poor structural and thermal stability of high‐voltage layered cathodes are aggravated as the charging depth increases, which severely threatens the cycle life and safety of the battery. Herein, without modifying the high‐voltage layered cathode itself, a simple and economic blending strategy is introduced, and an olivine‐LiCoO2 blended cathode featuring superior comprehensive performance (energy, power, cycle‐life, and safety) at 4.65 V is fabricated. The strong bonding affinity at the olivine/LiCoO2 contact interface suppresses lattice O2 release of LiCoO2, thus significantly improving the structural and thermal stability at high delithiation states. Meanwhile, by contacting with high‐electron‐conductivity LiCoO2, the redox activity of olivine is further activated. Therefore, a stable operation of both olivine‐LiCoO2 and olivine‐LiNi0.8Co0.1Mn0.1O2 blended cathode is achieved under harsh cycling conditions (high voltage or elevated temperature) and long‐life pouch‐cell (91.6% capacity retention after 1000 cycles) is harvested, demonstrating the feasibility and universality of this economic blending strategy on heterogenous cathode candidates.
Utilizing High Entropy Effects for Developing Chromium‐Tolerance Cobalt‐Free Cathode for Solid Oxide Fuel Cells
Authors: Han Xu , Ling Yihan , Yang Yang , Wu Yujie , Gao Yuan , Wei Bo , Lv Zhe 
Published: June 2023

AbstractSolid oxide fuel cell (SOFC) is regarded as an environmentally friendly energy conversion device, which can directly convert the chemical energy stored in the fuel to the electrical energy. However, the degradation of cathodes caused by Cr‐containing steel interconnects is a major problem that limits the broader application of SOFC. Herein, a novel A‐site high entropy oxide, based on the cobalt‐free PrBaFe2O5+δ
(PBF) cathode, La0.2Pr0.2Nd0.2Sm0.2Gd0.2BaFe2O5+δ
(LPNSGBF), is proposed as a high catalyst activity and Cr‐tolerance cathode for SOFC. The anode‐supported cell with the LPNSGBF cathode exhibits an excellent peak power density of 1020.69 mW cm−2 at 800 °C, which is better than that of the PBF (794.96 mW cm−2). Moreover, under the Cr‐containing atmosphere, the outstanding stability of the single cell with the LPNSGBF for 100 h with a degradation rate of 0.17% h−1, is much lower than the 0.79% h−1 for that of the PBF cathode. The study provides a new strategy for achieving the enhanced oxygen reduction reaction and high Cr‐tolerance of the cobalt‐free cathode by high entropy doping.
Photocurable 3D‐Printed PMBG/TCP Scaffold Coordinated with PTH (1‐34) Bidirectionally Regulates Bone Homeostasis to Accelerate Bone Regeneration
Authors: Ren Ya , Kong Weiqing , Liu Yihao , Yang Xue , Xu Xiang , Qiang Lei , Mi Xuelian , Zhang Changru , Niu Haoyi , Wang Chengwei , Wang Jinwu 
Published: June 2023

AbstractBone defect repair remains a major clinical challenge that requires the construction of scaffolds that can regulate bone homeostasis. In this study, a photo‐cured mesoporous bioactive glass (PMBG) precursor is developed as a tricalcium phosphate (TCP) agglomerant to obtain a double‐phase PMBG/TCP scaffold via 3D printing. The scaffold exhibits multi‐scale porous structures and large surface areas, making it a suitable carrier for the loading of parathyroid hormone (PTH) (1‐34), which is used for the treatment of osteoporosis. In vitro and in vivo results demonstrate that PMBG/TCP scaffolds coordinated with PTH (1‐34) can regulate bone homeostasis in a bidirectional manner to facilitate bone formation and inhibit bone resorption. Furthermore, bidirectional regulation of bone homeostasis by PTH (1‐34) is achieved by inhibiting fibrogenic activation protein (FAP). Thus, PMBG/TCP scaffolds coordinated with PTH (1‐34) are viable materials with considerable potential for application in the field of bone regeneration and provide an excellent solution for the design and development of clinical materials.
Iron‐Rich Semiconducting Polymer Dots for the Combination of Ferroptosis–Starvation and Phototherapeutic Cancer Therapy
Authors: Chen Mingjian , Yang Yuxin , Tang Le , He Shuyi , Guo Wanni , Ge Guili , Zeng Zhaoyang , Li Xiaoling , Li Guiyuan , Xiong Wei , Wu Steven Xu 
Published: June 2023

AbstractChemodynamic therapy (CDT) has emerged as an outstanding antitumor therapeutic method due to its selectivity and utilization of tumor microenvironment. However, there are still unmet requirements to achieve a high antitumor efficiency, including the tumor accumulation of catalyst and enrichment of reactants of Fenton reaction. Here, an iron‐loaded semiconducting polymer dot modified with glucose oxidase (Pdot@Fe@GOx) is reported to deliver iron ions into tumor tissues and in situ generation of hydrogen peroxide in tumors. On one hand, Pdot@Fe@GOx converts glucose to gluconic acid and hydrogen peroxide (H2O2) in tumor, which not only consumes glucose of tumor cells, but also provides the H2O2 for the following Fenton reaction. On the other hand, the Pdot@Fe@GOx delivers active iron ions in tumor to perform CDT with the combination of the generated H2O2. In addition, the Pdot@Fe@GOx has both photothermal and photodynamic effects under the irradiation of near‐infrared laser, which can improve and compensate the CDT effect to kill cancer cells. This Pdot@Fe@GOx‐based multiple‐mode therapeutic strategy has successfully achieved a synergistic anticancer effect with minimal side effects and has the potential to be translated into preclinical setting for tumor therapy.
Nanomaterials for Disease Treatment by Modulating the Pyroptosis Pathway
Authors: Wang Mengzhen , Fu Qinrui 
Published: June 2023

AbstractPyroptosis differs significantly from apoptosis and cell necrosis as an alternative mode of programmed cell death. Its occurrence is mediated by the gasdermin protein, leading to characteristic outcomes including cell swelling, membrane perforation, and release of cell contents. Research underscores the role of pyroptosis in the etiology and progression of many diseases, making it a focus of research intervention as scientists explore ways to regulate pyroptosis pathways in disease management. Despite numerous reviews detailing the relationship between pyroptosis and disease mechanisms, few delve into recent advancements in nanomaterials as a mechanism for modulating the pyroptosis pathway to mitigate disease effects. Therefore, there is an urgent need to fill this gap and elucidate the path for the use of this promising technology in the field of disease treatment. This review article delves into recent developments in nanomaterials for disease management through pyroptosis modulation, details the mechanisms by which drugs interact with pyroptosis pathways, and highlights the promise that nanomaterial research holds in driving forward disease treatment.
Robust PANI@MXene/GQDs‐Based Fiber Fabric Electrodes via Microfluidic Wet‐Fusing Spinning Chemistry
Authors: Qiu Hui , Qu Xiaowei , Zhang Yujiao , Chen Su , Shen Yizhong 
Published: June 2023

AbstractTwo‐dimensional transition metal titanium carbide (Ti3C2Tx) as a promising candidate material for batteries and supercapacitors has shown excellent electrochemical performance, but it is difficult to meet practical applications because of its poor morphology structure, low mechanical properties, and expensive process. Here, an applied and efficient method based on microfluidic wet‐fusing spinning chemistry (MWSC) is proposed to construct hierarchical structure of MXene‐based fiber fabrics (MFFs), allowing the availability of MFF electrodes with ultrastrong toughness, high conductivity, and easily machinable properties. First, a dot‐sheet structure constructed by graphene quantum dots (GQDs) and MXene nanosheets with multianchor interaction in the microchannel of a microfluidic device enhances the mechanical strength of MXene fibers; next, the interfused fiber network structure of Ti3C2Tx/GQDs fabrics assembled by the MWSC process enhances the deformability of the whole fabrics; finally, the core–shell structure of PANI@Ti3C2Tx/GQDs architected by in‐situ polymerization growth of polyaniline (PANI) nanofibers provides more ion‐accessible pathways and sites for kinetic migration and ion accumulation. Through the morphology and microstructure design, this strategy has directive significance to the large‐scale preparation of conductive fabric electrodes and provides a viable solution for simultaneously enhancing mechanical strength and electrochemical performance of conductive fabric electrodes.
The Design and Developments of Protein‐Polysaccharide Biomaterials for Corneal Tissue Engineering
Authors: Prasathkumar Murugan , Dhrisya Chenthamara , Lin Feng‐Huei , Sadhasivam Subramaniam 
Published: June 2023

AbstractCorneal blindness is explained by a large reduction in vision loss caused by acute and chronic corneal diseases and/or disorders. Due to the severe unavailability of donor corneas, immune rejection, and the side effects of keratoprosthesis (KPro), vision‐impaired patients are often unable to restore their vision. Corneal tissue engineering appears to be a promising method using natural polymers made from different layers of corneal cells such as epithelium, stroma, and endothelium or full tissue equivalents. Proteins and polysaccharides are able to mimic the chemical composition of the native extracellular matrix (ECM), which has been extensively studied for corneal tissue engineering. Additionally, protein‐based materials are highly favored in corneal regenerative therapy as they have the proper cell‐binding sites for cell adhesion, corneal innervation regeneration, and oxidative stress suppression, while polysaccharide‐based materials can also promote cell proliferation and adhesion as well as ocular permeability. Herein, a comprehensive review of various biomaterials based on natural proteins (fibrin, fibrinogen, silk fibroin, collagen, gelatin, and serum albumin) and polysaccharides (chitin, chitosan, hyaluronic acid, alginate, cellulose, and gellan gum) for corneal tissue engineering are provided. The protein‐polysaccharide biomaterials are mainly used in the form of hydrogels, films, scaffolds, sutures, eye drops, nanocarriers, and nanocapsules to treat ocular diseases that cause blindness, such as corneal wounds, corneal ulcers, Goldenhar syndrome, corneal endothelium and stroma defects, corneal neovascularization, etc. In this review, insight is provided into recent developments in the areas of biomaterial design, cross‐linking strategy, corneal cell selection, and frontiers that are expected to offer researchers support and creativity in the development of corneal regenerative medicine.
Wearable Humidity Sensor for Continuous Sweat Rate Monitoring
Authors: Aggarwal Ashwin , Dautta Manik , Ayala‐Cardona Luis Fernando , Wudaru Aalaya , Javey Ali 
Published: June 2023

AbstractThe rapid advancements in wearable technologies are allowing for personal and tailored monitoring systems for core bodily metrics. Modern smartwatches accurately and frequently stream physical signals such as heart rate and respiratory rate. However, smartwatches have yet to track a multitude of physiological parameters, including sweat rate. This work presents a new wearable device that tracks sweat rate, the body's most important thermoregulatory function. The device is tape‐free and utilizes an off‐the‐shelf humidity sensor, with the potential to be integrated with existing smartwatch bands. It features a 3D‐printed chamber with a humidity sensor and microheater, and it interfaces the skin with a malleable and concave sweat collector. Through various experiments and trials, the authors seek to understand the relationship between sweat‐induced humidity within the chamber and the amount of sweat secreted when worn. Compared to existing sweat rate sensing devices, this hygrometer‐based device can be worn for extensive periods of time without overfilling. The device's reusability and compactness make it a good candidate for use alongside modern, microfluidic‐based sweat rate devices.
White Lasing and White Fluorescence from the Simplified Two‐Dyes Organic System
Authors: Szukalska Alina , Szukalski Adam , Adaszynski Marek , Mysliwiec Jaroslaw 
Published: June 2023

AbstractThe invention of lasers, which took place a few decades ago, marks a milestone in the past, present, and future technologies in optoelectronics. In particular, the colorful and white tones produced by lasers are appealing from a utilization standpoint and align well with human eye perception. In this paper, an idea for a white laser based on the attractive perylene family of luminescent dyes is introduced. This concept provides multicolor emission and brilliant photostability upon external optical pumping. The main advantage of the approach is the construction of a fully organic and two‐component white laser. The versatility of the system is demonstrated by assembling multicolor, tunable, and efficient fluorescent systems using a liquid crystalline matrix, which is supported by comprehensive experimental studies. Additionally, by utilizing laser spectroscopy techniques, it is able to narrow the emission bandwidth and enhance the light in a typical synthetic polymeric matrix. This leads to the realization of white lasing emission with just two luminescent dyes: perylene blue and perylene orange.
High‐Throughput Tailorable Fabrication of Long‐Range Ordered Plasmonic Coaxial Multi‐Circular Nano‐Slit Arrays Down to 2 nm for SERS Detection
Authors: Yan Sisi , Zhu Chuhong , Wang Anyang , Sun Jiacheng , Hang Yingjie , Chen Bin , Wang Xiujuan , Wu Nianqiang , Tang Haibin , Wen Liaoyong , Meng Guowen 
Published: June 2023

AbstractPlasmonic patterns with gaps of less than 10 nm have wide applications for various optoelectronic devices, for example, the surface‐enhanced Raman spectroscopy (SERS) detection of toxic pesticide contaminants that pose a serious threat to human health. Here, a cost‐effective and highly controllable approach for such ultrafine patterns by combining the characteristic strengths of two techniques, the tunable and ordered porous structure of the anodic aluminum oxide template technique and the conformal atomic layer‐by‐layer growth feature of the atomic layer deposition technique, is reported. This novel nanofabrication approach can tailor the geometry and dimension of the inner‐pillar/outer‐ring or inner‐ring/outer‐ring nano‐arrays at the nanometer scale with high reproducibility. As a result, multiple large‐area (cm2 scale) ordered and high‐density coaxial circular nano‐slit arrays with adjustable slit width down to 2 nm are produced. Such narrow metallic nano‐slits can generate strong “hot spots” where huge signal enhancement happens, leading to a SERS enhancement factor of up to 4 × 108. This enables the detection of rhodamine 6G at an ultra‐low concentration of 10 fm, as well as toxic pesticide contaminants such as chlorpyrifos and thiram in lake water, with limits of detection of 0.25 ppm and 1.8 ppb, respectively.
Application of 2D Polyoxometalate Clusterphene in a High‐Performance Photoelectrochemical Photodetector
Authors: Zhang Xinyi , Khan Karim , Tareen Ayesha Khan , Zhang Ye 
Published: June 2023

AbstractExploration of novel two–dimensional (2D) nanomaterials with desired properties using a controlled approach remains one of the major challenges ahead. Clusterphene, the newly emerged 2D formation of self‐assembled clusters, exhibits a comparable structure to graphene with intriguing physicochemical features, which are applied in several scientific disciplines. Herein, it is demonstrated that polyoxometalate clusterphene (POMCene) is a promising 2D nanomaterial for photoelectrochemical (PEC) photodetection. The photodetection performance of POMCene can be subtly tuned by adjusting external conditions like bias voltage, electrolyte, and incident wavelength. A photocurrent of 1.88 µA cm‒2, a responsivity of 2.26 µA W‒1, a detectivity of 5.65 × 109 Jones, and a fast response speed of 0.02 s along with good long‐term stability can be achieved. It is believed that this research can pave a new direction for the future development of 2D POMCene in high‐performance optoelectronic devices.