bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ruddlesden–Popper Perovskite Nanocrystals Stabilized in Mesoporous Silica with Efficient Carrier Dynamics for Flexible X‐Ray Scintillator
Authors: Wang Shumei , Huang Wenliang , Liu Xinmei , Wang Shiqiang , Ye Haochen , Yu Shen , Song Xin , Liu Zhan , Wang Peijun , Yang Tinghuan , Chu Depeng , Gou Jing , Yuan Mingjian , Chen Lihua , Su Baolian , Liu Shengzhong (Frank) , Zhao Kui 
Published: November 2022

AbstractThe development of metal‐halide perovskite nanocrystals (NCs) that yield bright and stable emission is of great importance. Previous reported perovskite NCs are mostly based on APbX3‐type family fabricated via ligand‐ or surfactant‐assisted chemical approaches. However, realizing bright and stable emission remains a challenge because of desorption of ligands/surfactants during long‐term operation. Herein, Ruddlesden–Popper (RP)‐type (A)2(MA)n‐1PbnBr3n+1 NCs with size less than Bohr radius stabilized in mesoporous silica scaffold, which are prepared in situ via physical approach at low temperature are introduced. The RP NCs in mesoporous silica exhibit the formation of spatially and electronically separated quantum wells, efficient energy funneling between different n phases for bright emission (photoluminescence quantum yields of ≈99%), high irradiation stability (T70 = 110 days), and long‐term stability (T90 = 110 days). These RP NCs have broad potential for bright light‐emitting diodes, high‐resolution PL imaging, and waterproof inks. Importantly, for the first time, stretchable perovskite X‐ray scintillator is demonstrated with excellent X‐ray imaging with resolution greater than 14 line pairs mm−1. These findings offer a paradigm to motivate future research toward stable and efficient perovskite optoelectronics.
Multifunctional Dual Cross‐Linked Bioadhesive Patch with Low Immunogenic Response and Wet Tissues Adhesion
Authors: Tang Yang , Gong Guidong , He Xianglian , Dai Mengyuan , Chen Mei , Wang Bo , Wang Yajie , Wang Xiaoling , Guo Junling 
Published: November 2022

AbstractThe development of bioadhesives is an important, yet challenging task as seemingly mutually exclusive properties need to be combined in one material, that is, strong adhesion, water resistance, and high biocompatibility. Here, a biocompatible and biodegradable protein‐based bioadhesive patch (PBP) with high adhesion strength and low immunogenic response is reported. PBP exists as a strong adhesion for biological surfaces, which is higher than some conventional bioadhesives (i.e., polyethylene glycol and fibrin). Robust adhesion and strength are realized through the removal of interfacial water and fast formation of multiple supramolecular interactions induced by metal ions. The PBP's high biocompatibility is evaluated and immunogenic response in vitro and in vivo is neglected. The strong adhesion on soft biological tissues qualifies the PBP as biomedical glue outperforming some commercial products for applications in hemostasis performance, accelerated wound healing, and sealing of defected organs, anticipating to be useful as a tissue adhesive and sealant.
Persistent Endoplasmic Reticulum Stress Stimulated by Peptide Assemblies for Sensitizing Cancer Chemotherapy
Authors: Song Na , Song Yanqiu , Hu Binbin , Liu Xin , Yu Xiunan , Zhou Hao , Long Jiafu , Yu Zhilin 
Published: November 2022

AbstractPharmacological targeting of endoplasmic reticulum (ER) stress represents one of important methods for disease therapy, which, however, is significantly suppressed by the ER homeostatic processe. Herein, a proof‐of‐concept strategy is reported for persistent stimulation of ER stress via preventing ER stress adaptation by utilizing multifunctional peptide assemblies. The strategy is established via creation of peptide assemblies with ER‐targeting and chaperone glucose‐regulated protein 78 (GRP78)‐inhibiting functions. The peptides assemblies form well‐defined nanofibers that are retrieved by ER organelles in human cervical cancer cell. The underlying mechanism studies unravel that the ER‐accumulated peptide assemblies simultaneously stimulate ER stress and inhibit GRP78 refolding activity and thereby promoting endogenous protein aggregation. Combining the internalized peptide assemblies with the induced protein aggregates leads to the persistent stimulation of ER stress. The persistent ER stress induced by the peptide assemblies bestows their application in sensitizing cancer chemotherapy. Both in vitro and in vivo results confirm the enhanced cytotoxicity of drug toyocamycin against HeLa cells by peptide assemblies, thus efficiently inhibiting in vivo tumor growth. The strategy reported here discloses the fundamental keys for efficient promotion of ER stress, thus providing the guidance for development of ER‐targeting‐assisted cancer chemotherapy in the future.
Lactate‐Oxidase‐Instructed Cancer Diagnosis and Therapy
Authors: Jiang Shanshan , Chen Xin , Lin Jing , Huang Peng 
Published: November 2022

AbstractLactate oxidase (LOx) has attracted extensive interest in cancer diagnosis and therapy in recent years owing to its specific catalysis on l‐lactate; its catalytic process consumes oxygen (O2) and generates a large amount of hydrogen peroxide (H2O2) and pyruvate. Given high levels of lactate in tumor tissues and its tight correlation with tumor growth, metastasis, and recurrence, LOx‐based biosensors including H2O2‐based, O2‐based, pH‐sensitive, and electrochemical have been designed for cancer diagnosis, and various LOx‐based cancer therapy strategies including lactate‐depletion‐based metabolic cancer therapy/immunotherapy, hypoxia‐activated chemotherapy, H2O2‐based chemodynamic therapy, and multimodal synergistic cancer therapy have also been developed. In this review, the lactate‐specific catalytic properties of LOx are introduced, and the recent advances on LOx‐instructed cancer diagnostic or therapeutic platforms and corresponding biological applications are summarized. Additionally, the challenges and potential of LOx‐based nanomedicines are highlighted.
Digital and Gradient Refractive Index Planar Optics by Nanoimprinting Mesoporous Silicon
Authors: Hardison Anna L. , Talukdar Tahmid H. , Kravchenko Ivan I. , Ryckman Judson D. 
Published: November 2022

AbstractWe report the realization of digital and gradient index flat‐optics and planar waveguides using the ‘nanoimprinting refractive index’ (NIRI) technique applied to mesoporous silicon. This technique combines the distinct optical and mechanical metamaterial qualities of mesoporous silicon, including its widely tunable effective refractive index and ability to undergo plastic deformation with a near zero Poisson ratio. Nanoimprinting with premastered and reusable stamps containing analog or digital features enables the continuous or discontinuous patterning of refractive index with high contrast Δn ≥ 0.8 and subwavelength resolution. Using NIRI we experimentally demonstrate a wavefront shaping flat microlens array operating in the visible (405–635 nm) and mesoporous silicon and silica waveguides operating near 1310 nm. This study demonstrates the viability of patterning arbitrary refractive index distributions, n(x,y), on the surface of a chip while circumventing the challenges and limitations of top‐down lithographic techniques – thus opening a low‐cost and scalable approach for the realization of advanced planar optical technologies.
Colloidal Silicon Quantum Dot‐Based Cavity Light‐Emitting Diodes with Narrowed and Tunable Electroluminescence
Authors: Cheong I Teng , Mock Josef , Kallergi Maria , Groß Elisabeth , Meldrum Alkiviathes , Rieger Bernhard , Becherer Markus , Veinot Jonathan G. C. 
Published: November 2022

AbstractLuminescent colloidal silicon quantum dots (SiQDs) are explored as alternatives to metal‐based quantum dots for light‐emitting diodes (LEDs) because of the abundance and biocompatibility of silicon. To date, the broad electroluminescence (EL) bandwidth (>100 nm) and blueshifting of EL at high applied voltages of SiQD‐LEDs are outstanding challenges that limit a competitive spectral purity and device stability. Herein, the fabrication and testing of SiQD‐LEDs that incorporate a Fabry–Pérot cavity are reported which exhibit a narrow spectral linewidth as low as ≈23 nm. The presented devices also provide wavelength and visual stability from +4 to +8 V, as well as spectral tunability.
Direct Suzuki‐Miyaura Coupling of Naphthalene‐1,8‐diaminato (dan)‐Substituted Cyclopropylboron Compounds
Authors: Koishi Mikinao , Tomota Kazuki , Nakamoto Masaaki , Yoshida Hiroto 
Published: November 2022

AbstractWe herein describe the direct Suzuki‐Miyaura coupling of dan‐substituted, saturated organoboron compounds. Despite its Lewis acidity‐diminished character of the boron center, cyclopropyl‐B(dan) can be activated byt‐BuOK to undergo transmetalation with a palladium complex. The increased s‐character of the C−B(dan) bond as compared with other alkyl‐B(dan) should be the key to the reaction.magnified image
Abnormal Seebeck Effect in Vertically Stacked 2D/2D PtSe2/PtSe2 Homostructure
Authors: Lee Won‐Yong , Kang Min‐Sung , Choi Jae Won , Kim Si‐Hoo , Park No‐Won , Kim Gil‐Sung , Kim Yun‐Ho , Saitoh Eiji , Yoon Young‐Gui , Lee Sang‐Kwon 
Published: November 2022

AbstractWhen a thermoelectric (TE) material is deposited with a secondary TE material, the total Seebeck coefficient of the stacked layer is generally represented by a parallel conductor model. Accordingly, when TE material layers of the same thickness are stacked vertically, the total Seebeck coefficient in the transverse direction may change in a single layer. Here, an abnormal Seebeck effect in a stacked two‐dimensional (2D) PtSe2/PtSe2 homostructure film, i.e., an extra in‐plane Seebeck voltage is produced by wet‐transfer stacking at the interface between the PtSe2 layers under a transverse temperature gradient is reported. This abnormal Seebeck effect is referred to as the interfacial Seebeck effect in stacked PtSe2/PtSe2 homostructures. This effect is attributed to the carrier‐interface interaction, and has independent characteristics in relation to carrier concentration. It is confirmed that the in‐plane Seebeck coefficient increases as the number of stacked PtSe2 layers increase and observed a high Seebeck coefficient exceeding ≈188 µV K−1 at 300 K in a four‐layer‐stacked PtSe2/PtSe2 homostructure.
Excitonic Insulator Enabled Ultrasensitive Terahertz Photodetection with Efficient Low‐Energy Photon Harvesting
Authors: Dong Zhuo , Guo Wanlong , Zhang Libo , Zhang Yan , Chen Jie , Huang Luyi , Chen Cheng , Yang Liu , Ren Zeqian , Zhang Junrong , Yu Wenzhi , Li Jie , Wang Lin , Zhang Kai 
Published: November 2022

AbstractDespite the interest toward the terahertz (THz) rapidly increasing, the high‐efficient detection of THz photon is not widely available due to the low photoelectric conversion efficiency at this low‐energy photon regime. Excitonic insulator (EI) states in emerging materials with anomalous optical transitions and renormalized valence band dispersions render their nontrivial photoresponse, which offers the prospect of harnessing the novel EI properties for the THz detection. Here, an EI‐based photodetector is developed for efficient photoelectric conversion in the THz band. High‐quality EI material Ta2NiSe5 is synthesized and the existence of the EI state at room temperature is confirmed. The THz scanning near‐field optical microscopy experimentally reveals the strong light–matter interaction in the THz band of EI state in the Ta2NiSe5. Benefiting from the strong light–matter interaction, the Ta2NiSe5‐based photodetectors exhibit superior THz detection performances with a detection sensitivity of ≈42 pW Hz−1/2 and a response time of ≈1.1 µs at 0.1 THz at room temperature. This study provides a new avenue for realizing novel high‐performance THz photodetectors by exploiting the emerging EI materials.
Ultraelastic and High‐Conductivity Multiphase Conductor with Universally Autonomous Self‐Healing
Authors: Tolvanen Jarkko , Nelo Mikko , Alasmäki Heidi , Siponkoski Tuomo , Mäkelä Piia , Vahera Timo , Hannu Jari , Juuti Jari , Jantunen Heli 
Published: November 2022

AbstractNext‐generation, truly soft, and stretchable electronic circuits with material level self‐healing functionality require high‐performance solution‐processable organic conductors capable of autonomously self‐healing without external intervention. A persistent challenge is to achieve required performance level as electrical, mechanical, and self‐healing properties optimized in tandem are difficult to attain. Here heterogenous multiphase conductor with cocontinuous morphology and macroscale phase separation for ultrafast universally autonomous self‐healing with full recovery of pristine tensile and electrical properties in less than 120 and 900 s, respectively, is reported. The multiphase conductor is insensitive to flaws under stretching and achieves a synergistic combination of conductivity up to ≈1.5 S cm−1, stress at break ≈4 MPa, toughness up to >81 MJ m−3, and elastic recovery exceeding 2000% strain. Such properties are difficult to achieve simultaneously with any other type of material so far. The solution‐processable multiphase conductor offers a paradigm shift for damage tolerant and environmentally resistant soft electronic components and circuits with material level self‐healing.
Key Challenges for Grid‐Scale Lithium‐Ion Battery Energy Storage
Authors: Huang Yimeng , Li Ju 
Published: November 2022

AbstractA rapid transition in the energy infrastructure is crucial when irreversible damages are happening quickly in the next decade due to global climate change. It is believed that a practical strategy for decarbonization would be 8 h of lithium‐ion battery (LIB) electrical energy storage paired with wind/solar energy generation, and using existing fossil fuels facilities as backup. To reach the hundred terawatt‐hour scale LIB storage, it is argued that the key challenges are fire safety and recycling, instead of capital cost, battery cycle life, or mining/manufacturing challenges. A short overview of the ongoing innovations in these two directions is provided.
Multidentate Coordination Induced Crystal Growth Regulation and Trap Passivation Enables over 24% Efficiency in Perovskite Solar Cells
Authors: Yu Runnan , Wu Guangzheng , Shi Rui , Ma Zongwen , Dang Qi , Qing Yizhao , Zhang Chengyang , Xu Kunxiang , Tan Zhan'ao 
Published: November 2022

AbstractCrystal growth regulation has become an effective solution to reduce the defects at grain boundaries (GBs) and surfaces of perovskite films for better photovoltaic performances. Oxime acid materials are maturely used as selective collectors in the flotation separation of oxide minerals. Such materials, showing a strong coordination effect and high selectivity with lead, may have great potential in controlling the crystal growth and passivating the defect of perovskite film, which are rarely applied in perovskite solar cells (PerSCs). Herein, an oxime acid‐based material with multi‐coordination sites, ethyl 2‐(2‐aminothiazole‐4‐yl)‐2‐hydroxyiminoacetate (EHA), is incorporated into the PbI2 precursor solution to fabricate high‐performance PerSCs using a two‐step method. The multidentate coordination effect of EHA can link and integrate the PbI2 colloidal clusters to achieve pre‐aggregation in the PbI2 precursor solution, facilitating the sequent crystal growth progress of perovskite film. Meanwhile, EHA can connect grains and fill GBs, which is favorable for charge transfer and passivating both Pb‐I anti‐site and iodine vacancy defects. As a result, the optimal devices show an enhanced efficiency of 24.1% and excellent humidity and thermal stability. This work affords a promising strategy to fabricate efficient and stable PerSCs via multidentate coordination‐induced crystallization control and GB passivation.
A Photoinduced, Nickel‐Catalyzed Reaction for the Stereoselective Assembly of C‐Linked Glycosides and Glycopeptides
Authors: Wei Yi , Wang Quanquan , Koh Ming Joo 
Published: November 2022

AbstractC‐Alkyl glycosides and glycoproteins exist in natural products and are prized for their role as carbohydrate mimics in drug design. However, a practical strategy that merges glycosyl donors with readily accessible reagents, derived from abundant carboxylic acid and amine feedstocks, is yet to be conceived. Herein, we show that a nickel catalyst promotes C−C coupling between glycosyl halides and aliphatic acids or primary amines (converted into redox‐active electrophiles in one step), in the presence of Hantzsch ester and LiI (or Et3N) under blue LED illumination to deliver C‐alkyl glycosides with high diastereoselectivity. Mechanistic studies support the photoinduced formation of alkyl radicals that react with a glycosyl nickel species generated in situ to facilitate cross‐coupling. Through this manifold, innate CO2H and NH2 motifs embedded within amino acids and oligopeptides are selectively capped and functionalized to afford glycopeptide conjugates through late‐stage glycosylation.
Communication and Cross‐Regulation between Chemically Fueled Sender and Receiver Reaction Networks**
Authors: Sun Mo , Deng Jie , Walther Andreas 
Published: November 2022

AbstractNature connects multiple fuel‐driven chemical/enzymatic reaction networks (CRNs/ERNs) via cross‐regulation to hierarchically control biofunctions for a tailored adaption in complex sensory landscapes. Herein, we introduce a facile example of communication and cross‐regulation among two fuel‐driven DNA‐based ERNs regulated by a concatenated RNA transcription regulator. ERN1 (“sender”) is designed for the fuel‐driven promoter formation for T7 RNA polymerase, which activates RNA transcription. The produced RNA can deactivate or activate DNA in ERN2 (“receiver”) by toehold‐mediated strand displacement, leading to a communication between two ERNs. The RNA from ERN1 can repress or promote the fuel‐driven state of ERN2; ERN2 in turn feedbacks to regulate the lifetime of ERN1. Furthermore, the incorporation of RNase H allows for RNA degradation and enables the autonomous recovery of ERN2. We believe that concatenation of multiple CRNs/ERNs provides a basis for the design of more elaborate autonomous regulatory mechanisms in systems chemistry and synthetic biology.
DMTMM‐mediated grafting reaction of glucuronic acid on chitosan
Authors: Li Aoqi , Ye Yingqing , Gong Peixin , Xiao Bo , Jiang Bo 
Published: November 2022

AbstractCompared with traditional conjugates 1‐ethyl‐3‐(3‐dimethyl aminopropyl) carbodiimide (EDC) and N‐hydroxysuccinimide (NHS), 4‐(4,6‐dimethoxy‐1,3,5‐triazin‐2‐yl)‐4‐methylmorpholinium chloride (DMTMM) is an emerging biological coupling reagent and has been used in the amidation of hyaluronic acid. In this paper, DMTMM was used to achieve the amidation of chitosan (CS) with glucuronic acid (GA) in an aqueous medium to generate a GA‐CS derivative. The grafting efficacy was preliminarily compared with the EDC/NHS‐mediated reaction. As a result, the substitution degree of 17.6% for DMTMM‐mediated grafting and 13.1% for EDC/NHS chemistry indicated that DMTMM‐mediated synthesis of GA‐CS appeared to be more efficient. The reaction kinetics experiments showed that GA‐CS derivative with a degree of substitution up to about 26.1% was obtained using equal molar ratios of DMTMM and GA exceeding CS at room temperature. These results indicate that employing DMTMM as a coupling agent is a feasible and promising strategy for the amidation modification of chitosan.
Conductive double‐network hydrogel for a highly conductive anti‐fatigue flexible sensor
Authors: Gao Yi , Wei Cuilian , Zhao Shuangliang , Gao Wei , Li Zequan , Li Hong , Luo Jianju , Song Xianyu 
Published: November 2022

AbstractImproving the mechanical properties of hydrogels is a prime example of their large‐scale, diverse applications. Herein, we report a one‐pot method for preparing a double network system hydrogel where the polyvinyl alcohol served as the first polymer backbone, acrylamide as the second network, and N, N′‐Methylenebisacrylamide as the cross‐linker, and the prepared hydrogels presented excellent mechanical properties with 1168% tensile strain and 598 kPa compressive strength. Through the metal–ligand bonds, an electrolyte solution containing Cu2+ was introduced into the hydrogel, which exhibits higher water retention than other electrolyte‐containing hydrogels. Specially, the hydrogel was able to retain water for 8 h under extreme dry conditions at 60°C. The GF value was calculated to be 0.124 when the strain was 0%–64.2%. Furthermore, the hydrogel flexible sensor can detect changes in ambient temperature. When the ambient temperature rises, its relative resistance also tends to rise. In conclusion, this hydrogel sensor offers great potential applications in flexible sensors.
Robust actuator fault reconstruction for Takagi‐Sugeno fuzzy systems with unknown input via a synthesized learning and sliding‐mode observer
Authors: Jia Qingxian , Li Huayi , Li Min 
Published: November 2022

AbstractThe issue of robust actuator fault reconstruction for a class of Takagi‐Sugeno (T‐S) fuzzy systems with actuator fault and unknown input via a novel Synthesized Learning and Sliding‐Mode Observer (SLSMO) is investigated in this paper. Through a coordinate transformation technique, the considered T‐S fuzzy system is decomposed into two separate subsystems: Subsystem 1 affected only by actuator fault and Subsystem 2 affected by unknown input and actuator fault. In the SLSMO methodology, for Subsystem 1, a new reduced‐order Fuzzy Learning Observer (FLO) is explored to accurately reconstruct actuator fault, while a reduced‐order Fuzzy Sliding Mode Observer (FSMO) is employed for Subsystem 2 such that it has strong robustness against actuator fault and unknown input. Stability and convergence of the fuzzy SLSMO are explicitly proved using Lyapunov's indirect method. The design issue of the reduced‐order FLO and of the reduced‐order FSMO can be uniformly formulated in terms of some Linear Matrix Inequalities (LMIs) that can be directly solved using LMI optimization technique. In addition, a new full‐order FLO is suggested for actuator fault reconstruction in a class of T‐S fuzzy system without unknown input. At the end, a numerical example is applied to verify the effectiveness and superiority of the proposed approaches.
The effect of environmental, social and governance score on operating performance after mergers and acquisitions
Authors: Teti Emanuele , Spiga Lorenzo 
Published: November 2022

AbstractThis paper examines how the corporate social responsibility performance of the acquirer firm, measured with the environmental, social and governance score, is related to postmerger operating performance, by analysing 796 merger operations that took place between 2011 and 2018. The analysis was carried out by first considering the full sample and then dividing the sample into three subsamples: acquirer companies with an environmental, social and governance score below the median, acquirer companies with a rating above the median and finally those companies considered to have a very high score (over 80). To support the results obtained from this analysis, a machine learning technique was subsequently applied to the data. The results obtained from the analysis demonstrated that acquiring companies with a high environmental, social and governance rating manage to generate a significant improvement in operating performance postdeal after the merger, whereas this is not the case for companies with a low score or for companies with a score of above 80. These results seem to demonstrate that although a high environmental, social and governance score can have a positive impact on postmerger operating performance, this only true up to a point. A possible explanation for this could be that the costs involved in integrating and aligning the culture of the two merging companies increase when there is the need to maintain a high score.