bluuebunny/crossref_metadata_2025_split huggingface dataset:
Poly(arylene piperidine) Quaternary Ammonium Salts Promoting Stable Long‐Lived Room‐Temperature Phosphorescence in Aqueous Environment
Authors: Wang Chang , Qu Lunjun , Chen Xiaohong , Zhou Qian , Yang Yan , Zheng Yan , Zheng Xian , Gao Liang , Hao Jinqiu , Zhu Lingyun , Pi Bingxue , Yang Chaolong 
Published: June 2022

AbstractRoom‐temperature phosphorescence (RTP) materials have garnered considerable research attention owing to their excellent luminescence properties and potential application prospects in anti‐counterfeiting, information storage, and optoelectronics. However, several RTP systems are extremely sensitive to humidity, and consequently, the realization of long‐lived RTP in water remains a formidable challenge. Herein, a feasible and effective strategy is presented to achieve long‐lived polymeric RTP systems, even in an aqueous environment, through doping of synthesized polymeric phosphor PBHDB into a poly(methyl methacrylate) (PMMA) matrix. Compared to the precursor polymer PBN and organic molecule HDBP, a more rigid polymer microenvironment and electrostatic interaction are formed between the PMMA matrix and polymer PBHDB, which effectively reduce the nonradiative decay rate of triplet excitons and dramatically increase the phosphorescence intensity. Specifically, the phosphorescence lifetime of the PBHDB@PMMA film (1258.62 ms) is much longer than those of PBN@PMMA (674.20 ms) and HDBP@PMMA (1.06 ms). Most importantly, a bright‐green afterglow can be observed after soaking the PBHDB@PMMA film in water for more than a month. The excellent water resistance and reversible response properties endow these systems with promising potential for dynamic information encryption even in water.
3D Printing of Robotic Soft Grippers: Toward Smart Actuation and Sensing
Authors: Goh Guo Dong , Goh Guo Liang , Lyu Zheng , Ariffin Mohammad Zaidi , Yeong Wai Yee , Lum Guo Zhan , Campolo Domenico , Han Boon Siew , Wong Hong Yee Alvin 
Published: June 2022

AbstractUnlike traditional hard grippers, soft robotic grippers are commonly made of soft materials so that the soft grippers can produce motion via elastic deformations of their compliant components. The advantages of compliance allow soft grippers to effectively eliminate shocks caused by hard contact, which usually occurs when a hard robotic gripper manipulates a hard object. Until now, the soft robotic grippers are able to operate numerous objects with irregular geometries and different textures. Besides, with the help of embedded sensors, soft robotic grippers have facilitated the growing automation of many tasks, which are thought to be far too delicate for robotic manipulation. This paper reviews the advancement in soft robotic grippers. The paper first introduces the actuation technologies followed by the design and fabrication techniques. The use of 3D printing techniques in the fabrication of the soft gripper is also discussed. The Review then highlights the challenges and future outlook in the fabrication of soft grippers and sensors.
Ultrahigh Performance Self‐Supported Cl‐Cu2O@Cu Foam Electrode Fabricated by Sonochemical Surface Reconstruction Approach
Authors: Chang Yu , Shao Bo , Wang Jianyuan , Chen Fang , Zhai Wei 
Published: June 2022

AbstractUnlike powdery transition metal oxide (TMO) coated electrodes, self‐supported TMO electrodes have attracted considerable interests for optimizing the electrocatalytic performances of electrodes due to sufficient exposure of active sites and improved TMO‐substrate interfaces. However, conventional manufacture methods for self‐supported electrodes are faced with inefficiency and high complexity. Herein, a facile sonochemical surface reconstruction approach is proposed to fabricate Cl‐doped Cu2O@Cu foam (Cl‐Cu2O@Cu) electrode with ultrahigh sensitivity for glucose sensing. The intensive collapse of cavitation bubbles near Cu foam under sonication within NH4Cl solution, for this reason, massive Cu complex ions and highly active Cu surfaces are simultaneously generated. Then the nanosized Cu2O particles with large active surfaces are in situ formed and tightly anchored on the Cu surface, which undergoes Cl doping in Cu2O, resulting in ascending electrical conductivity. The Cl‐Cu2O@Cu electrode shows excellent catalytic performance to glucose, presenting ultrahigh sensitivity of 28 mA cm−2 × 10−3 m and ultralow limit of detection of 0.35 × 10−6 m (S/N = 3). This work promotes a novel approach for the rational design of self‐supported electrochemical electrodes by sonochemistry.
Comprehensive Quantum Chemical Characterization of the Astrochemically Relevant HCnH Chain Family: An Attempt to Aid Astronomical Observations
Authors: Bâldea Ioan 
Published: June 2022

AbstractIn this paper, the results of a comprehensive theoretical investigation of neutral HCnH0 and charged HCnH± chains are reported using state‐of‐the‐art compound model chemistries (W1BD, G4, CBS‐QB3, CBS‐APNO, CBS‐4M) and single point methods (including “gold standard” CCSD(T)). The properties envisaged include electronic and chemical bonding structure data, enthalpies of formation, adiabatic and vertical ionization (IP), and electron attachment (EA) energies, gas phase acidities, C−H bond strengths, and chain “deprotecting” (HCnH → H + Cn + H) energies. The best theoretical estimates based on composite models reported here for the various properties investigated agree with the available experimental data and are better than all previous theoretical estimates. To exemplify, for the enthalpies of formation, the G4 composite model achieves a RSMD (root square mean deviation) of 0.28 kcal mol−1 and a MUD (maximum unsigned deviation) of 0.45 kcal mol−1. Most importantly from the astrochemical perspective, it is predicted that the stable HCnH− anions with are nonlinear. Having sufficiently large dipole moments, the anion HCnH− cis conformers are potential candidates for detection in space via rovibrational spectroscopy.
Electronic Structure, Optical, and Elastic Properties of AgGaS2 Crystal: Theoretical Study
Authors: Rudysh M. Ya. , Ftomyn N. Y. , Shchepanskyi P. A. , Myronchuk G. L. , Popov A. I. , Lemée N. , Stadnyk V. Y. , Brik M. G. , Piasecki M. 
Published: June 2022

AbstractA comprehensive theoretical study of the structure, electronic, optical, and elastic properties of ternary semiconductor silver thiogallate crystal AgGaS2 is carried out based on the density functional theory and dipole electron shifting model (DES) for finding a structure–properties relationship. The deformation and displacement parameters, describing the deviation of the structural parameters of AgGaS2 from ideal chalcopyrite structure, are determined. It is noticed that the significant discrepancies concerning peculiarities of the band structure between initial results of the DFT‐based calculation and the experiment for the titled crystal have been efficiently eliminated by choosing the proper DFT + U approach. By utilizing the calculated dielectric function for two principal directions, the refractive indices and extinction coefficients dispersions are determined. For the first time, the linear electro‐optic properties, electrogyration coefficients, and second‐order nonlinear optical coefficients of AgGaS2 crystals are calculated in the frame of the DES model. The elastic properties of the AgGaS crystal are analyzed in the frame of the calculated full matrix of elastic coefficients. A number of parameters, such as Young's modulus E, Poisson's ratio ν, bulk B, and shear G moduli are predicted for the crystal. The calculated anisotropy coefficients for the moduli show very good agreement with ones available from experiment.
Localizing Tungsten Single Atoms around Tungsten Nitride Nanoparticles for Efficient Oxygen Reduction Electrocatalysis in Metal–Air Batteries
Authors: Ma Yuanyuan , Yu Yong , Wang Junhui , Lipton Jason , Tan Hui Ning , Zheng Lirong , Yang Tong , Liu Zhaolin , Loh Xian Jun , Pennycook Stephen J. , Shen Lei , Kou Zongkui , Taylor André D. , Wang John 
Published: June 2022

AbstractCombining isolated atomic active sites with those in nanoparticles for synergizing complex multistep catalysis is being actively pursued in the design of new electrocatalyst systems. However, these novel systems have been rarely studied due to the challenges with synthesis and analysis. Herein, a synergistically catalytic performance is demonstrated with a 0.89 V (vs reversible hydrogen electrode) onset potential in the four‐step oxygen reduction reaction (ORR) by localizing tungsten single atoms around tungsten nitride nanoparticles confined into nitrogen‐doped carbon (W SAs/WNNC). Through density functional theory calculations, it is shown that each of the active centers in the synergistic entity feature a specific potential‐determining step in their respective reaction pathway that can be merged to optimize the intermediate steps involving scaling relations on individual active centers. Impressively, the W SAs/WNNC as the air cathode in all‐solid‐state Zn‐air and Al‐air batteries demonstrate competitive durability and reversibility, despite the acknowledged low activity of W‐based catalyst toward the ORR.
Dimensionality‐Dependent Resistive Switching in 0D and 2D Cs3Sb2I9: Energy‐Efficient Synaptic Functions with the Layered‐Phase
Authors: Paramanik Subham , Pal Amlan J. 
Published: June 2022

AbstractThe authors introduce two polymorphs of Cs3Sb2I9 for resistive switching behavior under the application of an external bias. The devices based on the dimer phase contain self‐formed metallic bridges and thereby an initial low‐resistive state, which switches to a high‐resistive one upon application of a suitable voltage. The devices based on the layered phase, in contrast, are initially in a high‐state and thereby require a voltage to switch to a low‐resistive one. Since the layered‐phase of the perovskite is environmentally stable, a closed loop pulsed switching (CLPS) measurement protocol is employed to devices with the layered‐phase to further control the make‐and‐break of the conducting bridges. Interface‐modified devices (prohibiting a contact between the two electrodes due to ion migrations) have exhibited multiple functionalities of the human brains, such as excitatory/inhibitory postsynaptic currents and spike voltage/duration/timing dependent plasticity, transition from a short term memory to a long term memory, and potentiation/depression behavior with extremely low energy consumption per synaptic event. The device characteristics have also followed the Ebbinghaus curve of forgetting and the Atkinson–Shiffrin model of memory applicable in the human brains. This study hence concludes that the layered‐phase of Cs3Sb2I9 exhibits energy‐efficient artificial synaptic functions for next‐generation memory applications.
Field Effect Passivation in Perovskite Solar Cells by a LiF Interlayer
Authors: Menzel Dorothee , Al‐Ashouri Amran , Tejada Alvaro , Levine Igal , Guerra Jorge Andrés , Rech Bernd , Albrecht Steve , Korte Lars 
Published: June 2022

AbstractThe fullerene C60 is commonly applied as the electron transport layer in high‐efficiency metal halide perovskite solar cells and has been found to limit their open circuit voltage. Through ultra‐sensitive near‐UV photoelectron spectroscopy in constant final state mode (CFSYS), with an unusually high probing depth of 5–10 nm, the perovskite/C60 interface energetics and defect formation is investigated. It is demonstrated how to consistently determine the energy level alignment by CFSYS and avoid misinterpretations by accounting for the measurement‐induced surface photovoltage in photoactive layer stacks. The energetic offset between the perovskite valence band maximum and the C60 HOMO‐edge is directly determined to be 0.55 eV. Furthermore, the voltage enhancement upon the incorporation of a LiF interlayer at the interface can be attributed to originate from a mild dipole effect and probably the presence of fixed charges, both reducing the hole concentration in the vicinity of the perovskite/C60 interface. This yields a field effect passivation, which overcompensates the observed enhanced defect density in the first monolayers of C60.
Predictive control of particlesize distribution of crystallization process using deep learning based image analysis
Authors: Wang Liangyong , Zhu Yaolong , Gan Chenyang 
Published: June 2022

AbstractThe challenges to regulate the particle‐size distribution (PSD) stem from on‐line measurement of the full distribution and the distributed nature of crystallization process. In this article, a novel nonlinear model predictive control method of PSD for crystallization process is proposed. Radial basis function neural network is adopted to approximate the PSD such that the population balance model with distributed nature can be transformed into the ordinary differential equation (ODE) models. Data driven nonlinear prediction model of the crystallization process is then constructed from the input and output data and further be used in the proposed nonlinear model predictive control algorithm. A deep learning based image analysis technology is developed for online measurement of the PSD. The proposed PSD control method is experimentally implemented on a jacketed batch crystallizer. The results of crystallization experiments demonstrate the effectiveness of the proposed control method.
Predictors of hematologic response and survival with stem cell transplantation in AL amyloidosis: A 25‐year longitudinal study
Authors: Gustine Joshua N. , Staron Andrew , Szalat Raphael E. , Mendelson Lisa M. , Joshi Tracy , Ruberg Frederick L. , Siddiqi Omar , Gopal Deepa M. , Edwards Camille V. , Havasi Andrea , Kaku Michelle , Lau K. H. Vincent , Berk John L. , Sloan J. Mark , Sanchorawala Vaishali 
Published: June 2022

AbstractHigh‐dose melphalan and stem cell transplantation (HDM/SCT) is an effective treatment for selected patients with AL amyloidosis. We report the long‐term outcomes of 648 patients with AL amyloidosis treated with HDM/SCT over 25 years. Hematologic CR was achieved by 39% of patients. The median duration of hematologic CR was 12.3 years, and 45% of patients with a hematologic CR had no evidence of a recurrent plasma cell dyscrasia at 15 years after HDM/SCT. With a median follow‐up interval of 8 years, the median event‐free survival (EFS) and overall survival (OS) were 3.3 and 7.6 years, respectively. Patients with a hematologic CR had a median OS of 15 years, and 30% of these patients survived >20 years. On multivariable analysis, dFLC >180 mg/L and BM plasma cells >10% were independently associated with shorter EFS, whereas BNP >81 pg/mL, troponin I > 0.1 ng/mL, and serum creatinine >2.0 mg/dL were independently associated with shorter OS. We developed a prognostic score for EFS, which incorporated dFLC >180 mg/L and BMPC% >10% as adverse risk factors. Patients with low‐risk (0 factors), intermediate‐risk (1 factor), and high‐risk (2 factors) disease had median EFS estimates of 5.3, 2.8, and 1.0 years, respectively (p < .001). The 100‐day treatment‐related mortality rate was 3% in the latest treatment period (2012–2021), and the 25‐year risk of t‐MDS/AML was 3%. We conclude that HDM/SCT induces durable hematologic responses and prolonged survival with improved safety in selected patients with AL amyloidosis.
Indications for absorbable steroid‐eluting sinus implants: Viewpoint via the Delphi method
Authors: Lee Victoria S. , Patel Prayag , O'Brien Daniel , Scangas George A. , Campbell Raewyn G. , Chandra Rakesh , Davis Greg E. , Han Joseph K , Le Christopher H. , Lee Jivianne , Luong Amber U. , Poetker David M. , Ramadan Hassan , Setzen Michael , Smith Kristine , Wise Sarah , Villwock Jennifer , Ference Elisabeth 
Published: June 2022

AbstractAbsorbable steroid‐eluting sinus implants provide targeted corticosteroid release over a sustained period and are designed to prevent both undesirable adhesion formation and sinus ostia restenosis. Here, we highlight the key evidence of these implants to date and query a group of experts via a Delphi process on the indications and optimal timing for intraoperative or in‐office placement of these implants. Six of a total of 12 statements reached consensus and were accepted. Overall, experts largely agree that intraoperative or in‐office use of steroid‐eluting stents could be considered for patients: (1) who are diabetic or intolerant of oral steroids, (2) undergoing extended frontal sinus surgery, and (3) with recurrent stenosis. Given the lack of expert consensus on other key statements, clinicians should carefully consider these treatment options on a case‐by‐case basis after shared decision‐making.
Surface Activation and Ni‐S Stabilization in NiO/NiS2for Efficient Oxygen Evolution Reaction
Authors: Zhang Nan , Hu Yang , An Li , Li Qingyu , Yin Jie , Li Jianyi , Yang Rui , Lu Min , Zhang Sen , Xi Pinxian , Yan Chun‐Hua 
Published: June 2022

AbstractManipulating the active species and improving the structural stabilization of sulfur‐containing catalysts during the OER process remain a tremendous challenge. Herein, we constructed NiO/NiS2and Fe−NiO/NiS2as catalyst models to study the effect of Fe doping. As expected, Fe−NiO/NiS2exhibits a low overpotential of 270 mV at 10 mA cm−2. The accumulation of hydroxyl groups on the surface of materials after Fe doping can promote the formation of highly active NiOOH at a lower OER potential. Moreover, we investigated the level of corrosion of M−S bonds and compared the stability variation of M−S bonds with Fe at different locations. Interestingly, Fe bonded with S in the bulk as the sacrificial agent can alleviate the oxidation corrosion of partial Ni−S bonds and thus endow Fe−NiO/NiS2long‐term durability. This work could motivate the community to focus more on resolving the corrosion of sulfur‐containing materials.
A Copper Cage‐Complex as Mimic of the pMMO CuC Site
Authors: Bete Sarah C. , May Leander K. , Woite Philipp , Roemelt Michael , Otte Matthias 
Published: June 2022

AbstractThe active site of particulate methane monooxygenase (pMMO) and its mechanism of action are not known. Recently, the CuC site emerged as a potential active site, but to date it lacks any study on biomimetic resemblance of the coordination environment provided by the enzyme. Here, the synthesis of a cage ligand providing such an environment is reported. Copper is incorporated, and coordination occurs by the two imidazole and one carboxylate group offered by the ligand. Depending on the oxidation state, it can adopt different coordination modes, as evidenced by the solid‐state structures and computational investigation. The copper(I) state readily reacts with dioxygen and thereby undergoes CH activation. Moreover, the catalytic aerobic oxidation of hydroquinones as ubiquinol mimics is shown. Clean one‐electron oxidation occurs under mild conditions and EPR analysis of the copper(II) state in the presence of water reveals striking similarities to the data obtained from pMMO.
Crucial Roles of a Pendant Imidazole Ligand of a Cobalt Porphyrin Complex in the Stoichiometric and Catalytic Reduction of Dioxygen
Authors: Yang Jindou , Li Ping , Li Xialiang , Xie Lisi , Wang Ni , Lei Haitao , Zhang Chaochao , Zhang Wei , Lee Yong‐Min , Zhang Weiqiang , Cao Rui , Fukuzumi Shunichi , Nam Wonwoo 
Published: June 2022

AbstractA cobalt porphyrin complex with a pendant imidazole base ([(L1)CoII]) is an efficient catalyst for the homogeneous catalytic two‐electron reduction of dioxygen by 1,1′‐dimethylferrocene (Me2Fc) in the presence of triflic acid (HOTf), as compared with a cobalt porphyrin complex without a pendant imidazole base ([(L2)CoII]). The pendant imidazole ligand plays a crucial role not only to provide an imidazolinium proton for proton‐coupled electron transfer (PCET) from [(L1)CoII] to O2 in the presence of HOTf but also to facilitate electron transfer (ET) from [(L1)CoII] to O2 in the absence of HOTf. The kinetics analysis and the detection of intermediates in the stoichiometric and catalytic reduction of O2 have provided clues to clarify the crucial roles of the pendant imidazole ligand of [(L1)CoII] for the first time.
LPS‐induced macrophage exosomes promote the activation of hepatic stellate cells and the intervention study of total astragalus saponins combined with glycyrrhizic acid
Authors: Deng Kaili , Dai Ze , Yang Ping , Yang Dongxue , Zhou Yuping 
Published: June 2022

AbstractHuangqi decoction, also known as Huangqi Liuyi decoction, was first recorded in the prescriptions of the Bureau of Taiping People's Welfare Pharmacy. It comprises astragalus and licorice, which is a commonly used prescription in traditional Chinese medicine for the clinical treatment of chronic liver disease, especially liver cirrhosis. Total astragalus saponins (AST) is the main component of astragalus, and glycyrrhizic acid (GA) is the main component of licorice. In this study, normal macrophage exosomes were extracted, and the exosomes incubated with lipopolysaccharides (LPS) and those incubated with LPS + AST + GA were co‐cultured with JS1 cells (hepatic stellate cell line). The survival rate and the activation of key signaling pathways of JS1 cells in each group were detected and compared. We found that the co‐culture of LPS‐induced macrophage exosomes with JS1 cells could significantly increase the expression levels of Collagen‐1 (Col‐1) and Alpha smooth muscle actin (α‐SMA)in JS1 cells. However, a significant reversal effect was observed after pretreatment with AST combined with GA. Further evaluation found that the expression levels of phospho (p)‐Smad2 and p‐Smad3 in the JS1 cells were significantly increased after macrophages were induced with LPS, whereas pretreatment with AST + GA could significantly decrease the expression levels of p‐Smad2 and p‐Smad3. Preliminary results of this study indicated that LPS‐induced macrophage exosomes can promote the activation of hepatic stellate cells, and the pretreatment of AST combined with GA can exert a significant intervention effect. In this study, the new mechanism of anti‐hepatic fibrosis effect of traditional Chinese medicine components of Huangqi Decoction was analyzed from the perspective of exosomes.
Enhancing corporate sustainable development: Organizational learning, social ties, and environmental strategies
Authors: Ali Adnan , Jiang Xu , Ali Afzaal 
Published: June 2022

AbstractEnvironmental strategies—reactive environmental strategy (RES) and proactive environmental strategy (PES)—emerged as an effective tool for firms to respond to various stakeholders' pressures and mounting environmental issues. Despite their vital role, scant studies have examined how and why firms facing the same institutional environment adopt heterogonous, instead of homogeneous, strategies for achieving corporate sustainable development. To fill this research gap, this study anchored to resource dependence theory investigates how organizational learning (both exploitative and explorative) and social ties (both political and business) independently and interactively affect the adoption of environmental strategies. Using a sample of 272 Chinese firms, the data are analyzed through the SPSS 21, and the proposed hypotheses are tested through moderated hierarchical regression analyses. The findings reveal that firms that engage in exploitative learning tend to adopt RES rather than PES, whereas firms that engage in explorative learning are more likely to adopt PES as opposed to RES. Moreover, firms that are involved in exploitative learning benefit to a greater extent from political ties than from business ties as a means of adopting RES, whereas firms that engage in explorative learning benefit to a greater extent from business ties than from political ties to adopt RES. Our study adds value to the environmental management and strategy literature by clarifying the underlying mechanisms through which firms adopt distinct environmental strategies.