bluuebunny/crossref_metadata_2025_split huggingface dataset:
Large‐Area Fabrication of Ultrathin Metal‐Organic Framework Membranes
Authors: Yuan Hongye , Li Kerui , Shi Dongchen , Yang Hao , Yu Xin , Fan Weidong , Buenconsejo Pio John S. , Zhao Dan 
Published: February 2023

AbstractMetal‐organic framework (MOF)‐based membranes, featuring potential molecular sieving effects and therefore capable of surmounting the ubiquitous trade‐off between membrane selectivity and permeability, hold great promise for multitudinous chemical separations. Nevertheless, it remains highly challenging for the large‐area fabrication of ultrathin MOF membranes with variable thickness, great homogeneity, and preferential orientation. Herein, this work reports the facile fabrication of ultrathin (down to 20 nm) NUS‐8 membranes in large‐area (>200 cm2) yet with great homogeneity and texture along (00l) direction due to the superior solution processability of the as‐synthesized NUS‐8 nanosheets. The resultant NUS‐8 membranes with good adhesion properties and certain flexibility exhibit excellent rejections (>98% for Mg2+ and Al3+, and dyes with molecular weights larger than 585.5 g mol−1) toward aqueous separation of various metal ions and dyes at modest permeance (1–3.2 L m−2 h−1 bar−1) due to the well‐aligned structures. Such separation performance outstands among polymetric membranes, thin‐film composite membranes, mixed matrix membranes, and other MOF membranes reported in the literature. The separation mechanism is reasonably discussed based on the experimental and theoretical results. This study opens up novel perspectives for preparing ultrathin and large‐area MOF membranes using the solution processability of MOFs.
Recent Advances and Challenges of Colloidal Quantum Dot Light‐Emitting Diodes for Display Applications
Authors: Kim Jaehoon , Roh Jeongkyun , Park Myoungjin , Lee Changhee 
Published: February 2023

AbstractColloidal quantum dots (QDs) exhibit tremendous potential in display technologies owing to their unique optical properties, such as size‐tunable emission wavelength, narrow spectral linewidth, and near‐unity photoluminescence quantum yield. Significant efforts in academia and industry have achieved dramatic improvements in the performance of quantum dot light‐emitting diodes (QLEDs) over the past decade, primarily owing to the development of high‐quality QDs and optimized device architectures. Moreover, sophisticated patterning processes have also been developed for QDs, which is an essential technique for their commercialization. As a result of these achievements, some QD‐based display technologies, such as QD enhancement films and QD‐organic light‐emitting diodes, have been successfully commercialized, confirming the superiority of QDs in display technologies. However, despite these developments, the commercialization of QLEDs is yet to reach a threshold, requiring a leap forward in addressing challenges and related problems. Thus, representative research trends, progress, and challenges of QLEDs in the categories of material synthesis, device engineering, and fabrication method to specify the current status and development direction are reviewed. Furthermore, brief insights into the factors to be considered when conducting research on single‐device QLEDs are provided to realize active matrix displays. This review guides the way toward the commercialization of QLEDs.
Flexible Organic Transistors for Biosensing: Devices and Applications
Authors: Song Jiajun , Liu Hong , Zhao Zeyu , Lin Peng , Yan Feng 
Published: February 2023

AbstractFlexible and stretchable biosensors can offer seamless and conformable biological–electronic interfaces for continuously acquiring high‐fidelity signals, permitting numerous emerging applications. Organic thin film transistors (OTFTs) are ideal transducers for flexible and stretchable biosensing due to their soft nature, inherent amplification function, biocompatibility, ease of functionalization, low cost, and device diversity. In consideration of the rapid advances in flexible‐OTFT‐based biosensors and their broad applications, herein, a timely and comprehensive review is provided. It starts with a detailed introduction to the features of various OTFTs including organic field‐effect transistors and organic electrochemical transistors, and the functionalization strategies for biosensing, with a highlight on the seminal work and up‐to‐date achievements. Then, the applications of flexible‐OTFT‐based biosensors in wearable, implantable, and portable electronics, as well as neuromorphic biointerfaces are detailed. Subsequently, special attention is paid to emerging stretchable organic transistors including planar and fibrous devices. The routes to impart stretchability, including structural engineering and material engineering, are discussed, and the implementations of stretchable organic transistors in e‐skin and smart textiles are included. Finally, the remaining challenges and the future opportunities in this field are summarized.
Record‐High Electron Mobility Exceeding 16 cm2 V−1 s−1 in Bisisoindigo‐Based Polymer Semiconductor with a Fully Locked Conjugated Backbone
Authors: Zhang Weifeng , Shi Keli , Lai Jing , Zhou Yankai , Wei Xuyang , Che Qian , Wei Jinbei , Wang Liping , Yu Gui 
Published: February 2023

AbstractPolymer semiconductors with mobilities exceeding 10 cm2 V−1 s−1, especially ambipolar and n‐type polymer semiconductors, are still rare, although they are of great importance for fabricating polymer field‐effect transistors (PFETs) toward commercial high‐grade electronics. Herein, two novel donor−acceptor copolymers, PNFFN‐DTE and PNFFN‐FDTE, are designed and synthesized based on the electron‐deficient bisisoindigo (NFFN) and electron‐rich dithienylethylenes (DTE or FDTE). The copolymer PNFFN‐DTE, containing NFFN and DTE, possesses a partially locked polymeric conjugated backbone, whereas PNFFN‐FDTE, containing NFFN and FDTE, has a fully locked one. Fluorine atoms in FDTE not only induce the formation of additional CH∙∙∙F hydrogen bonds, but also lower frontier molecular orbitals for PNFFN‐FDTE. Both PNFFN‐DTE and PNFFN‐FDTE form more ordered molecular packing in thin films prepared from a polymer solution in bicomponent solvent containing 1,2‐dichlorobenzene (DCB) and 1‐chloronaphthalene (with volume ratio of 99.2/0.8) than pure DCB. The two copolymers‐based flexible PFETs exhibit ambipolar charge‐transport properties. Notably, the bicomponent solvent‐processed PNFFN‐FDTE‐based PFETs afford a high electron mobility of 16.67 cm2 V−1 s−1, which is the highest electron‐transport mobility for PFETs reported so far. The high electron mobility of PNFFN‐FDTE is attributed to its fully locked conjugated backbone, dense molecular packing, and much matched LUMO energy level.
Epidermal Bioelectronics for Management of Chronic Diseases: Materials, Devices and Systems
Authors: Qiao Zheng , Chen Shuwen , Fan Shicheng , Xiong Ze , Lim Chwee Teck 
Published: February 2023

AbstractChronic diseases are currently posing a major challenge not only to our life expectancy and healthspan but also to the healthcare system, as patients will need continual monitoring, treatment, and care to mitigate some of the severe health complications that may arise. Merely frequent visits to medical facilities and clinics may not be sufficient. Home‐based point‐of‐care diagnosis and monitoring may be needed for the prevention and/or management of long‐term complications. Recent advances in materials, fabrication methods, and bioelectronics have led to some epidermal systems that can measure critical physiological parameters and provide long‐term monitoring of several chronic diseases. In this review, it is systematically outlined the progress of epidermal bioelectronics aimed at managing common chronic diseases, such as cardiovascular diseases, diabetes, and chronic wounds. Flexible and stretchable materials with related engineering approaches that render wearability are also discussed. Finally, a list of current challenges, future perspectives as well as potential research directions with the aim towards better translation in bringing these wearable technologies from the laboratory to the clinic and market are presented.
Printed Electronics Technologies for Additive Manufacturing of Hybrid Electronic Sensor Systems
Authors: Zikulnig Johanna , Chang Sean , Bito Jo , Rauter Lukas , Roshanghias Ali , Carrara Sandro , Kosel Jürgen 
Published: February 2023

AbstractRequirements for the miniaturization of electronics are constantly increasing as more and more functions are aimed to be integrated into a single device. At the same time, there are strong demands for low‐cost manufacturing, environmental compatibility, rapid prototyping, and small‐scale productions due to fierce competition, policies, rapid technical progress, and short innovation times. Altogether, those challenges cannot be sufficiently addressed by simply using either printed or silicon electronics. Instead, the synergies from combining those two technologies into so‐called hybrid electronics create novel opportunities for advanced capabilities and new areas of applications. In the first part of this review, printing and patterning technologies are presented with potential compatibility with conventional electronics manufacturing techniques. They can be utilized for the fabrication of highly complex structures. Nonetheless, up‐scalability, integration, and adaptation for industrial fabrication remain challenging due to technically limiting factors. Consequently, a special focus is placed on the up‐scalability, availability of commercial printing, and manufacturing machines, as well as processing challenges for high‐volume industrial applications. The second part of this review further provides an overview of exciting and innovative application possibilities of printed electronics, emphasizing sensor applications, as well as additively manufactured integrated circuits.
Effect of Alteplase on Ischemic Stroke Mortality Is Dependent on Stroke Severity
Authors: de Havenon Adam , Abbasi Mehdi , Yaghi Shadi , Delic Alen , Bangad Aaron , Johnston Karen , Tirschwell David , Sheth Kevin N. 
Published: February 2023

ObjectiveAlthough intravenous alteplase (IV‐tPA) has a beneficial effect on functional outcome after ischemic stroke (IS), prior studies of IV‐tPA's impact on post‐stroke mortality did not have sufficient representation of more severe stroke.MethodsWe determined if the interaction between the baseline National Institutes of Health (NIH) Stroke Scale (NIHSS) and IV‐tPA modified the risk of mortality after IS in two cohorts: (1) National Inpatient Sample 2016–2020, and (2) a harmonized cohort of IS patients from the NINDS IV‐tPA, ALIAS part 2, SHINE, FAST‐MAG, IMS‐III, POINT, and DEFUSE 3 trials. We fit logistic regression models to the outcome of in‐hospital mortality (National Inpatient Sample [NIS] cohort) or mortality within 90 days (harmonized cohort), adjusted for baseline variables.ResultsWe included 198,668 patients in the NIS cohort, of which 14.0% received IV‐tPA and 3.4% died in hospital. We included 7,138 patients in the harmonized cohort, of which 33.2% received IV‐tPA and 9.4% died by 90 days. Mortality in the NIS cohort was associated with older age, female sex, non‐Hispanic white race, atrial fibrillation, and higher NIHSS. In the harmonized cohort, mortality was associated with older age, diabetes, atrial fibrillation, and higher NIHSS. In both cohorts, the interaction between NIHSS and IV‐tPA was significant. In the NIS cohort, the separation became significant at NIHSS 15 and in the harmonized cohort at NIHSS 23, at which point, IV‐tPA began to have a significant benefit for both in‐hospital and 90‐day mortality, respectively.InterpretationIV‐tPA is associated with a reduction in both in‐hospital and 90‐day mortality for patients with more severe IS. ANN NEUROL 2023;93:1106–1116
Breaking the Size Limitation of Directly‐Synthesized PbS Quantum Dot Inks Toward Efficient Short‐wavelength Infrared Optoelectronic Applications
Authors: Liu Yang , Gao Yiyuan , Yang Qian , Xu Gao , Zhou Xingyu , Shi Guozheng , Lyu Xingyi , Wu Hao , Liu Jun , Fang Shiwen , Ullah Muhammad Irfan , Song Leliang , Lu Kunyuan , Cao Muhan , Zhang Qiao , Li Tao , Xu Jianlong , Wang Suidong , Liu Zeke , Ma Wanli 
Published: February 2023

AbstractPbS quantum dots (QDs) are promising building blocks for solution‐processed short‐wavelength infrared (SWIR) devices. The recently developed direct synthesis of semi‐conductive PbS QD inks has substantially simplified the preparation processing and reduced the material cost, while facing the challenge to synthesize large‐size QDs with absorption covering the SWIR region. Herein, we for the first time realize a low‐cost, scalable synthesis of SWIR PbS QD inks after an extensive investigation of the reaction kinetics. Finally, based on these PbS SWIR QD inks, the solar cell demonstrates a record‐high power conversion efficiency (PCE) of 1.44 % through an 1100 nm cutoff silicon filter and the photodetector device shows a low dark current density of 2×10−6 A cm−2 at −0.8 V reverse bias with a high external quantum efficiency (EQE) of 70 % at ≈1300 nm. Our results realize the direct synthesis of low‐cost and scalable SWIR QD inks and may accelerate the industrialization of consumer SWIR technologies.
Direct Oxygen‐Oxygen Cleavage through Optimizing Interatomic Distances in Dual Single‐atom Electrocatalysts for Efficient Oxygen Reduction Reaction
Authors: Xie Yuhan , Chen Xin , Sun Kaian , Zhang Jinqiang , Lai Wei‐Hong , Liu Hao , Wang Guoxiu 
Published: February 2023

AbstractThe oxygen reduction reaction (ORR) on transition single‐atom catalysts (SACs) is sustainable in energy‐conversion devices. However, the atomically controllable fabrication of single‐atom sites and the sluggish kinetics of ORR have remained challenging. Here, we accelerate the kinetics of acid ORR through a direct O−O cleavage pathway through using a bi‐functional ligand‐assisted strategy to pre‐control the distance of hetero‐metal atoms. Concretely, the as‐synthesized Fe−Zn diatomic pairs on carbon substrates exhibited an outstanding ORR performance with the ultrahigh half‐wave potential of 0.86 V vs. RHE in acid electrolyte. Experimental evidence and density functional theory calculations confirmed that the Fe−Zn diatomic pairs with a specific distance range of around 3 Å, which is the key to their ultrahigh activity, average the interaction between hetero‐diatomic active sites and oxygen molecules. This work offers new insight into atomically controllable SACs synthesis and addresses the limitations of the ORR dissociative mechanism.
Excessive Iodine Enabled Ultrathin Inorganic Perovskite Growth at the Liquid‐Air Interface
Authors: Yuan Jiaxiao , Zhang Xiaomin , Zhou Dawei , Ge Feixiang , Zhong Jingxian , Zhao Sihan , Ou Zhenwei , Zhan Guixiang , Zhang Xu , Li Congzhou , Tang Jin , Bai Qi , Zhang Junran , Zhu Chao , Wang Ti , Ruan Longfei , Zhu Chongqin , Song Xuefen , Huang Wei , Wang Lin 
Published: February 2023

AbstractThe liquid‐air interface offers a platform for the in‐plane growth of free‐standing materials. However, it is rarely used for inorganic perovskites and ultrathin non‐layered perovskites. Herein the liquid‐air interfacial synthesis of inorganic perovskite nanosheets (Cs3Bi2I9, Cs3Sb2I9) is achieved simply by drop‐casting the precursor solution with only the addition of iodine. The products are inaccessible without iodine addition. The thickness and lateral size of these nanosheets can be adjusted through the iodine concentration. The high volatility of the iodine spontaneously drives precursors that normally stay in the liquid to the liquid‐air interface. The iodine also repairs in situ iodine vacancies during perovskite growth, giving enhanced optical and optoelectronic properties. The liquid‐air interfacial growth of ultrathin perovskites provides multi‐degree‐of‐freedom for constructing perovskite‐based heterostructures and devices at atomic scale.
Jute fibre reinforced unsaturated polyesters laminate preparation using eggshell filler
Authors: Datta Deepshikha , Rao Dharmana Tejeswara , K. S. Deepak , Mutsuddi Mahima , Das Bimal 
Published: February 2023

AbstractThe current work aims to evaluate the properties of unsaturated polyester laminates reinforced with discontinuous randomly oriented chopped jute fibre matrix filled with microsized (57.8 μm) eggshell filler. Laminates with two and three layers of jute fibres were prepared by hand lay‐up process. The mechanical properties like tensile strength, impact strength and flexural strength were enhanced from 20.16 to 25.8 MPa, 1.42 to 3.98 KJ/m2 and 35.54 to 57.84 MPa, respectively, when the eggshell filler (surface area: 72.64 m2/g, pore volume: 0.297 cc/g) content was increased from 0% to 2.5% in the matrix for the three‐layered laminate. The increase in filler content to 5% enhanced the hardness from 21.95 to 90.35 Rockwell L‐scale (two‐layered laminate); however, there was a declination of the other mechanical properties at a high filler content. The microsized filler has significantly decreased the voids and improvised the homogeneity, microstructure, crystallinity and contact angle (from 70.98 [unfilled] to 74.72 [filled]) of the produced filled laminates, as substantiated by scanning electron microscope (SEM), atomic force microscopy (AFM), X‐ray difffraction (XRD) and contact angle measurements. Thus, the fabricated laminates can be efficiently utilised as an eco‐friendly, high‐strength, low‐cost, light material for fabricating automobile dashboards.
Influence of BaZnCuO3 and BaZnCuO3/rGO on the thermal decomposition of ammonium perchlorate and 3‐nitro‐3H‐1,2,4‐triazol‐5‐one (NTO)
Authors: Dave Pragnesh N. , Sirach Ruksana 
Published: February 2023

AbstractBaZnCuO3 (BZC) was synthesized using the sol–gel method. The BZC was incorporated in reduced graphene oxide (rGO) to produce BZC/rGO composite. The synthesized catalysts were characterized using Raman, scanning electron microscopy (SEM), powder X‐ray diffraction (XRD), and ultraviolet–visible (UV–Vis) analysis. The comparative effect of BZC and BZC/rGO composite was studied on the thermal decomposition of 3‐nitro‐3H‐1,2,4‐triazol‐5‐one (NTO) and ammonium perchlorate (AP) using the simultaneous thermogravimetric technique (TG‐DTA). Thermal investigations suggest that BZC was a better catalyst for decreasing the thermal decomposition temperature and the thermokinetic parameters of both AP and NTO compared to BZC/rGO composite. BZC can reduce the thermal decomposition temperature of AP and NTO by 121 and 46°C, respectively. The findings support BZC as a possible catalyst in the thermolysis of both NTO and AP.
Sulfonated poly(ether ether ketone) membranes for vanadium redox flow battery enabled by the incorporation of ionic liquid‐covalent organic framework complex
Authors: Meng Xiaoyu , Peng Qiwang , Wen Jihong , Song Kai , Peng Luman , Wu Tianyu , Cong Chuanbo , Ye Haimu , Zhou Qiong 
Published: February 2023

AbstractIn vanadium redox flow battery (VRFB). Sulfonated poly(ether ether ketone) (SPEEK) is viewed as a promising alternative to Nafion as a material for vanadium liquid flow battery membrane, due to its low cost and high proton conductivity. However, SPEEK membranes have a Trade‐Off effect of proton conduction and ion selectivity, which limits the performance of VRFB. Here, we exploited the Donnan effect of imidazole cations in ionic liquids (ILs) to improve the ion selectivity of SPEEK membrane. In addition, used porous covalent organic framework materials (COF) with sulfonic acid functional groups to immobilize ionic liquids, which reduced the loss of ILs. The ion selectivity of the SPEEK membrane was further improved. As a result, the cell performance of the composite membrane is improved. At a constant current density of 40 mA cm−2, SPEEK/IL‐5@TpPa‐SO3H‐3 membrane exhibits high coulombic efficiencies (CE: 98.43%) and energy efficiencies (EE: 91.7%). Furthermore, the energy efficiency of the SPEEK/IL‐5@TpPa‐SO3H‐3 membrane decreases only 2.1% after 60 charge/discharge cycles at 100 mA cm−2. Our work proposed a cost‐effective, high‐performance membrane for VRFB.
Dry‐jet wet spinnability of poly(1,4‐phenylene‐1,3,4‐oxadiazole) fiber: The influence of polymer intrinsic viscosity and spinning dope temperature
Authors: Xie Qibao , Li Wentao , Li Bo , Sun Zhaomei , Liang Shuheng , Zhou Yulin , Jiang Mengjin 
Published: February 2023

AbstractThe spinnability of poly (p‐phenyl‐oxadiazole) (POD) spinning dope was regulated by tuning intrinsic viscosity and temperature to make it feasible for dry‐jet wet spinning. An increase in intrinsic viscosity ([η]) and a decrease in temperature will give rise to a more significant entanglement density of the POD solution and increase viscosity. Results show that POD spinning dopes' stable extrusion can be formed at the conditions when the spinning dope's viscoelastic transition frequency (VETF) is around 10 Hz. The solution was selected to prepare POD fiber when [η] = 2.23 at 40 °C, and the tensile strength of the POD fiber was enhanced significantly (from 1.3 to 3.19 cN/dtex). The best mechanical properties were achieved when the draw ratio at the spinneret was 1.6. Our work provides an alternative for the rapid preparation of high‐performance POD fiber, which is of great significance for broadening the application field of POD fibers.
Photoinduced Cerium‐Mediated Decarboxylative Alkylation Cascade Cyclization of N‐arylacrylamides and N‐acryl‐2‐aryl benzimidazoles
Authors: Dagar Neha , Singh Swati , Roy Sudipta Raha 
Published: February 2023

AbstractA mild and versatile cerium‐mediated decarboxylative strategy for sequential alkylation/cyclization was developed for the synthesis of quaternary oxindoles and benzimidazo[2,1‐a]isoquinolin‐6(5H)‐ones via photoinduced‐LMCT. This operationally simple procedure relies on inexpensive and feedstock carboxylic acids as alkyl radical surrogates and aerial molecular oxygen as the terminal oxidant. This mild and atom economical protocol showed viability with a wide range of alkyl carboxylic acids (1° to 3° acids) as coupling partners and also allows the late‐stage modification of pharmaceutically‐important acids. Mechanistic studies revealed the reaction to follow radical pathway, while the decarboxylative event was studied by in situ FTIR.
Asserting your mind: Interruptions extremize consumer choices
Authors: Pang Yuting , Wang Lili , You Yanfen , Ding Ying 
Published: February 2023

AbstractInterruptions prevail in the retail environment, especially during consumer decision‐making. However, scant research has examined whether and how interruptions that suspend decisions affect consumer choices. We posit that interruptions heighten the consumers' preference certainty, which leads to a choice extremity effect—consumers choose their preferred products even more and their unpreferred products even less. Six experiments provide convergent evidence for the choice extremity effect and the underlying process. Study 1a shows that interruptions lead to choice extremity with a vice product (i.e., chips). Study 1b confirms the effect in the context of incentive‐compatible choices. Study 2 replicates the choice extremity effect with a virtue product (i.e., yogurts). Study 3 further tests the robustness of the effect with a decision‐related interruption. Study 4 shows that preference certainty mediates the effect of interruptions on choice extremity and rules out the level of arousal and task involvement as alternative accounts. Using a moderation approach, Study 5 shows that the choice extremity effect disappears when consumers have high self‐concept clarity. The present study contributes to research on interruptions, preference certainty, and consumer choices and provides implications for marketers.