bluuebunny/crossref_metadata_2025_split huggingface dataset:
Objective sleep was longitudinally associated with brain amyloid burden in mild cognitive impairment
Authors: Kimura Noriyuki , Sasaki Yuuki , Masuda Teruaki , Ataka Takuya , Eguchi Atsuko , Kakuma Tatsuyuki , Matsubara Etsuro 
Published: September 2023

AbstractObjectiveUnderstanding the longitudinal association of objective sleep and physical activity with brain amyloid burden and cortical glucose metabolism has critical clinical and public health implications for dementia prevention in later life.MethodsWe enrolled 118 individuals aged ≥65 years with mild cognitive impairment, who were followed up on from August 2015 to September 2019. All participants continuously wore an accelerometer sensor for 7 consecutive days every 3 months and received annual 11C‐Pittsburgh compound‐B and 18F‐fluorodeoxyglucose positron emission tomography (PET). Sleep and physical activity parameters were assessed using accelerometer sensor data and PET imaging was quantified using a standardized uptake‐value ratio. Fifty‐seven participants (48.3%) completed a lifestyle factor assessment and PET imaging over the 3‐year period. A linear mixed‐effects model was applied to examine the longitudinal association of sleep and physical activity parameters with PET imaging over the 3‐year period, controlling for potential confounders.ResultsSleep efficiency was inversely associated with amyloid uptake in the frontal lobe. Although sleep duration was positively associated with global amyloid uptake, particularly in the frontal lobe, their impact was extremely small. However, physical activity parameters were not significantly associated with the 11C‐Pittsburgh compound‐B‐uptake. Furthermore, sleep and physical activity parameters were not significantly associated with cortical glucose metabolism.InterpretationLower sleep efficiency could be an early symptom of greater brain amyloid burden at the mild cognitive impairment stage. Therefore, the assessment of sleep may be useful for identifying individuals at higher risk for brain amyloid burden. Future longer term observational studies are required to confirm these findings.
Near‐Infrared Optical Synapses Based on Multilayer MoSe2 Moiré Superlattice for Artificial Retina
Authors: Yang Hongying , Hu Yunxia , Zhang Xin , Ding Yanan , Wang Shuai , Su Zhen , Shuai Yong , Hu PingAn 
Published: September 2023

AbstractNear‐infrared (NIR) synaptic devices have attracted great attention in the field of NIR vision sensors due to their highly parallel sensing and memory functions, which emulate the basic biomimetic behaviors of the human visual system. However, it is a great challenge for the 2D material to achieve NIR light response and integration, which obstructs the progress of NIR synaptic devices. Hence, a two‐terminal NIR synaptic device based on a multilayer MoSe2 moiré superlattice is reported. The moiré structure dominated by interlayer excitons significantly enhances the interlayer coupling of multilayer MoSe2, resulting in a narrower band gap nearly to that of bulk to achieve NIR light response and broadband absorption from 240 nm to 1700 nm. The existence of Se vacancies in MoSe2 moiré superlattice makes the device show the fundamental synaptic performance. Furthermore, a 10×10 integrated retinal morphologic device array is constructed. Under the 100 s light pulse stimulation of 1060 nm, the pattern obtained after attenuation of 50 s still has a memory level of 14.84%, reflecting the excellent storage function under NIR illumination. This research opens up a new avenue for the realization of NIR artificial retina and bionic eye based on 2D materials.
Separation Effect of Graphene Sheets with N, O Codoping and Molybdenum Clusters for Reversible Lithium–Iodine Batteries
Authors: Chen Qianwu , Chen Song , Ma Jizhen , Ding Siyu , Zhang Jintao 
Published: September 2023

AbstractLithium–iodine (Li–I2) batteries with ideal discharge potential plateau and abundant iodine resources have attracted considerable attention. However, the poor electrical conductivity of iodine with high solubility in organic electrolytes, and the Li dendrite issue have severely limited the practical application of Li–I2 batteries. Herein, this work demonstrates that the bifunctionalization of polypropylene (PP) separator with molybdenum clusters on N, O codoped graphene nanosheets (Mo‐rGO@PP) is efficient to promote the reversible redox reactions of polyiodides to suppress the shuttle effect, and enhance the Li affinity for the uniform Li plating/stripping. Typically, the Li symmetric battery assembled with Mo‐rGO@PP separator exhibits an ultralong lifespan of >2000 h with a low overpotential of <25 mV at 10 mA cm−2. With such a separation effect to effectively suppress the polyiodide shuttle and dendrite growth, the Li–I2 battery delivers a long cycle life of over 6000 cycles with a reversible capacity of 170 mAh g−1 at 10 C. With deep insights into the ion flux and redox regulation, this work demonstrates the promising advances via the separation effect for developing high‐performance redox batteries.
Versatile, Stable, and Scalable Gel‐Like Aerophobic Surface System (GLASS) for Hydrogen Production
Authors: Kang Yunseok , Lee Seunghyun , Han Seongsoo , Jeon Dasom , Bae Misol , Choi Yuri , Lee Dong Woog , Ryu Jungki 
Published: September 2023

AbstractFacile removal of adsorbed gas bubbles from electrode surfaces is crucial to realize efficient and stable energy conversion devices based on electrochemical gas evolution reactions. Conventional studies on bubble removal have limited applicability and scalability due to their reliance on complex and energy/time‐intensive processes. In this study, a simple and versatile method is reported to fabricate large‐area superaerophobic electrodes (up to 100 cm2) for diverse gas evolution reactions using the gel‐like aerophobic surface system (GLASS). GLASS electrodes are readily and uniformly fabricated by simple spin‐coating and cross‐linking of polyallylamine on virtually any kinds of electrodes within 5 min under ambient conditions. Intrinsically hydrophilic gel overlayers with interconnected open pores allow the physical separation of bubble adhesion and catalytic active sites, reducing bubble adhesion strength, and promoting the removal of gas bubbles. As a result, GLASS electrodes exhibit greatly enhanced efficiency and stability for diverse gas evolution reactions, such as hydrogen evolution, hydrazine oxidation, and oxygen evolution reactions. This study provides deeper insights into understanding the effect of the hydrophilic microenvironment on gas evolution reactions and designing practical electrochemical devices.
Chiral Recognition: A Spin‐Driven Process in Chiral Oligothiophene. A Chiral‐Induced Spin Selectivity (CISS) Effect Manifestation
Authors: Stefani Andrea , Salzillo Tommaso , Mussini Patrizia Romana , Benincori Tiziana , Innocenti Massimo , Pasquali Luca , Jones Andrew C. , Mishra Suryakant , Fontanesi Claudio 
Published: September 2023

AbstractIn this paper it is experimentally demonstrated that the electron‐spin/molecular‐handedness interaction plays a fundamental role in the chiral recognition process. This conclusion is inferred comparing current versus potential (I–V) curves recorded using chiral electrode surfaces, which are obtained via chemisorption of an enantiopure thiophene derivative: 3,3′‐bibenzothiophene core functionalized with 2,2′‐bithiophene wings (BT2T4). The chiral recognition capability of these chiral‐electrodes is probed via cyclic voltammetry measurements, where, Ag nanoparticles (AgNPs) capped with enantiopure BT2T4 (BT2T4@AgNP) are used as the chiral redox probe. Then, the interface handedness is explored by recording spin‐polarized I–V curves in spin‐dependent electrochemistry (SDE) and magnetic‐conductive atomic force microscopy (mc‐AFM) experiments. The quality of the interfaces is thoroughly cross‐checked using X‐ray photoemission spectroscopy, Raman, electrodesorption measurements, which further substantiate the metal(electrode)‐sulfur(thiophene) central role in the chemisorption process. Spin‐polarization values of about 15% and 30% are obtained in the case of SDE and mc‐AFM experiments, respectively.
PdCux Bimetallic Nanoalloys with “Hand‐in‐Hand” Collaboration in POD‐like Activity and “Back‐to‐Back” Confrontation in SPR Effect for Tumor Redox System Control
Authors: Fang Linyang , Zhang Yangyang , Ding He , Liu Shikai , Wei Jianye , Feng Lili , He Fei , Gai Shili , Dong Yuze , Yang Piaoping 
Published: September 2023

AbstractIn reactive‐oxygen‐species‐mediated tumor therapy, the generation and accumulation of ·OH is highly dependent on peroxidase (POD)‐like enzymatic activities and the antioxidant tumor microenvironment. As noble metal nanoalloys can enhance the POD‐like enzymatic activity by improving electron transfer and upgrading active sites, PdCux (x = 0.6–1.2) bimetallic nanoalloys with optimized enzymatic activity, enhanced photothermal conversion efficiency, and altered glutathione (GSH) consumption ability are synthesized by a facile co‐reduction method. The electron transfer between Pd and Cu in the PdCux nanoalloys and their new Cu+ catalytic centers contribute to a “hand‐in‐hand” collaboration in their POD‐like enzymatic activities, while their photothermal properties remain almost unchanged because of the “back‐to‐back” confrontation occurring owing to the excess Cu produced by the surface plasmon resonance effect. Moreover, the intrinsic GSH consumption of those nanoalloys and heat from their surface plasmon resonance effect tilt the tumor redox steady state. Therefore, the PdCu0.9 nanoalloy show excellent POD‐like enzymatic activity resulting from a bimetallic catalytic route, which involves electron transfer from electron‐enriched Pd to hydrogen peroxide and heat‐enhanced Cu+/Cu2+‐coupled Fenton‐like reactions. The synthesized PdCux bimetallic nanoalloys can shed light on the mechanism responsible for enhancing the POD‐like activity in nanoalloys and offer a typical model for constructing next‐generation alloy nanozymes.
Oxygen‐Induced Lattice Strain for High‐Performance Organic Transistors with Enhanced Stability
Authors: Sun Shougang , Zhu Jie , Wang Zhongwu , Huang Yinan , Hu Yongxu , Chen Xiaosong , Sun Yajing , Li Liqiang , Hu Wenping 
Published: September 2023

AbstractIntegrating the merits of low cost, flexibility, and large‐area processing, organic semiconductors (OSCs) are promising candidates for the next‐generation electronic materials. The mobility and stability are the key figures of merit for its practical application. However, it is greatly challenging to improve the mobility and stability simultaneously owing to the weak interactions and poor electronic coupling between OSCs molecules. Here, an oxygen‐induced lattice strain (OILS) strategy is developed to achieve OSCs with both high mobility and high stability. Utilizing the strategy, the maximum mobility of dinaphtho[2,3‐b:2′,3′‐f]thieno[3,2‐b]thiophene (DNTT) organic field‐effect transistor (OFET) rises to 15.3 cm2 V−1 s−1 and the contact resistance lowers to 25.5 Ω cm. Remarkably, the thermal stability of DNTT is much improved, and a record saturated power density of ≈3.4 × 104 W cm−2 is obtained. Both the experiments and theoretical calculations demonstrate that the lattice compressive strain induced by oxygen is responsible for their high performance and stability. Furthermore, the universality of the strategy is manifested in both n‐type and p‐type small OSCs. This work provides a novel strategy to improve both the mobility and the stability of OSCs, paving the way for the practical applications of organic devices.
One‐Stop Fabrication of Flexible Sensors Based on Aqueous Printable Triboelectric Layer‐Electrode Integrated Ink with Enhanced Heat‐Resistance
Authors: Dong Haoran , Jiang Saihua , Wu Hao , Wang Yuanxin , Zhong Xiaodi , Jiang Haocheng , Qian Xiaodong , Shi Congling 
Published: September 2023

AbstractTriboelectric nanogenerator (TENG) sensors can meet various application‐scenario requirements for their portability and sustainability. However, the multiple steps from manufacturing to assembly are generally tedious and manpower‐consuming, limiting further development of TENGs in industrialization. Herein, a printable heat‐resistant triboelectric layer‐electrode integration ink is prepared by doping MXene into Polyvinylpyrrolidone and methyl cellulose system for the first time, which is simple and environmentally friendly. And a facile method for manufacturing integrated‐forming TENG (IF‐TENG) sensors without additional electrode assembly based on 3D printing technology is reported, the resulting TENG is flexible and heat‐resistant (≤200 °C). On this basis, IF‐TENGs with simple and complex patterns are rapidly constructed without manual assembly, which can perceive different pressures and bending angles of arms efficiently in high‐temperature conditions. To improve the sensing accuracy, the prepared IF‐TENG sensors are implanted on the four main stress positions on an insole. The support vector machine (SVM) is used to process and analyze the output signals to improve the accuracy of gaits recognition. The mean area under the receiver operating characteristic curve (AUC) value of 0.99 is obtained after parameter optimization by the GridSearch algorithm, and the recognization of various gaits achieves a high accuracy of 96.7%. This work provides an advanced fabrication strategy for TENG with low labor costs and thermal stability, demonstrating great prospects of TENG in mass manufacturing and safety motion monitoring in high‐temperature environments.
High‐Performance Synaptic Phototransistor Using A Photoactive Self‐Assembled Layer toward Ultralow Energy Consumption
Authors: Wu Ya‐Shuan , Chang Ai‐Chun , Chen Wei‐Cheng , Ercan Ender , Weng Yi‐Hsun , Lin Bi‐Hsuan , Liu Cheng‐Liang , Lin Yan‐Cheng , Chen Wen‐Chang 
Published: September 2023

AbstractArtificial synapses have gained great interest in the past few years because of their importance in deep learning and image recognition. To fulfill device miniaturization and reduce the energy consumption of device operation, a series of silane‐based photoactive/conjugated self‐assembled molecules (CSAMs), including isoindigo (IID), diketopyrrolopyrrole, and benzodithiophene, are used as the charge‐trapping layers in synaptic phototransistors. The devices comprising CSAM demonstrate excellent short‐term/long‐term memory behaviors and can emulate the paired‐pulse facilitation (PPF) function. Notably, the IID‐based device shows the highest photoresponse, and this performance is highly related to the charge transfer efficiency and the photophysics lifetimes derived from the time‐resolved photoluminescence and the transient absorption characterizations. Therefore, IID produces the highest PPF ratios of 139% to blue light and 144% to green light. In addition, the energy consumption of 0.029 fJ at an operating voltage of −0.1 mV is achieved, which is the lowest value in synaptic phototransistors so far. Notably, neural networks of supervised and unsupervised learning algorithms are demonstrated in the device studied to process a pattern recognition system. Collectively, using conjugated self‐assembled materials as a charge‐trapping layer is a promising way for synaptic phototransistor applications to reduce energy consumption and fulfill the device miniaturization.
Injection Molding Plastic Solar Cells
Authors: Burgués‐Ceballos Ignasi , Pinyol‐Castillo Paula , López‐Porta Aina , Pascual Enric , Syrový Tomáš , Syrova Lucie , Josefik Frantisek , Dhuiège Benjamin , Serrano Irene , Lacharmoise Paul D. , López‐Mir Laura 
Published: September 2023

AbstractWhile organic photovoltaics are accessing specific application sectors taking advantage of their unique properties, it is important to identify as many differentiators as possible to expand the market penetration and consolidation of this technology. In this work, for the first time, the large‐scale fabrication of organic photovoltaic modules embedded into structural plastic parts through industrial injection molding is demonstrated. Thermoplastic polyurethane is chosen as the injected material to show that this additional processing step can yield flexible, lightweight photovoltaic modules with enhanced device robustness and virtually unchanged performance. The critical optomechanical and physico‐chemical material properties, as well as the plastic processing parameters to enable in‐mold plastic solar cells with improved performance and stability, are discussed and provided with perspective.
Hydrazine‐Assisted Acidic Water Splitting Driven by Iridium Single Atoms
Authors: Luo Fang , Pan Shuyuan , Xie Yuhua , Li Chen , Yu Yingjie , Bao Haifeng , Yang Zehui 
Published: September 2023

AbstractWater splitting, an efficient technology to produce purified hydrogen, normally requires high cell voltage (>1.5 V), which restricts the application of single atoms electrocatalyst in water oxidation due to the inferior stability, especially in acidic environment. Substitution of anodic oxygen evolution reaction (OER) with hydrazine oxidation reaction (HzOR) effectually reduces the overall voltage. In this work, the utilization of iridium single atom (Ir‐SA/NC) as robust hydrogen evolution reaction (HER) and HzOR electrocatalyst in 0.5 m H2SO4 electrolyte is reported. Mass activity of Ir‐SA/NC is as high as 37.02 A mgIr−1 at overpotential of 50 mV in HER catalysis, boosted by 127‐time than Pt/C. Besides, Ir‐SA/NC requires only 0.39 V versus RHE to attain 10 mA cm−2 in HzOR catalysis, dramatically lower than OER (1.5 V versus RHE); importantly, a superior stability is achieved in HzOR. Moreover, the mass activity at 0.5 V versus RHE is enhanced by 83‐fold than Pt/C. The in situ Raman spectroscopy investigation suggests the HzOR pathway follows *N2H4→*2NH2→*2NH→2N→*N2→N2 for Ir‐SA/NC. The hydrazine assisted water splitting demands only 0.39 V to drive, 1.25 V lower than acidic water splitting.
Spring barley yield and potential northward expansion under climate change in Canada
Authors: Jégo Guillaume , Crépeau Marianne , Jing Qi , Grant Brian , Smith Ward , Cannon Alex J. , Lafond Jean , Dyck Miles , Qian Budong 
Published: September 2023

AbstractSpring barley (Hordeum vulgare L.), being a cold‐tolerant crop, may not benefit as much from a warmer climate and a lengthening of the growing season due to climate change though its suitable production area could expand further north. The objectives of this study were to assess the impact of climate change on barley yields across Canada for both current production regions and potential northern crop expansion regions in the future. Three crop models (DeNitrification and DeComposition, Decision Support System for Agrotechnology Transfer, and Simulateur mulTIdisciplinaire pour les Cultures Standard) and 18 climate scenarios (1981–2100) were used to simulate the effect of climate change on potential (non‐water and non‐nitrogen limited) and rainfed (non‐nitrogen limited) spring barley yields for 32 locations across Canada. For the currently planted spring barley regions characterized by a humid summer in Eastern Canada (growing season precipitation >500 mm), potential and rainfed yields were projected to slightly increase in the future (<+0.2 t ha−1). In western regions where precipitation amount is lower (growing season precipitation <500 mm), changes in the potential yield varied slightly (−0.1 to +0.2 t ha−1), while the rainfed yield was projected to increase (0.2–1.0 t ha−1) mainly due to a reduction in water stress under elevated CO2. Finally, in northern regions where future expansion may occur, projected yield increases were generally large (up to 2.8 t ha−1 for potential yield), but the risk of crop failure usually remained high. Our findings suggest that future climate change will present both opportunities and regionalized risks for spring barley producers with the potential to further expand barley production northward.
Study design and methods: U.S. study to protect brain health through lifestyle intervention to reduce risk (U.S. POINTER)
Authors: Baker Laura D. , Snyder Heather M. , Espeland Mark A. , Whitmer Rachel A. , Kivipelto Miia , Woolard Nancy , Katula Jeffrey , Papp Kathryn V. , Ventrelle Jennifer , Graef Sarah , Hill Marcus A. , Rushing Scott , Spell Julia , Lovato Laura , Felton Deborah , Williams Benjamin J. , Ghadimi Nouran Mina , Raman Rema , Ngandu Tiia , Solomon Alina , Wilmoth Sharon , Cleveland Maryjo L. , Williamson Jeff D. , Lambert Katherine L. , Tomaszewski Farias Sarah , Day Claire E. , Tangney Christy C. , Gitelman Darren R. , Matongo Olivia , Reynolds Terrianne , Pavlik Valory N. , Yu Melissa M. , Alexander Ashley S. , Elbein Richard , McDonald Ann Marie , Salloway Stephen , Wing Rena R. , Antkowiak Susan , Morris Martha Clare , Carrillo Maria C. ,   for the U.S. POINTER Study Group
Published: September 2023

AbstractINTRODUCTIONThe U.S. study to protect brain health through lifestyle intervention to reduce risk (U.S. POINTER) is conducted to confirm and expand the results of the Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER) in Americans.METHODSU.S. POINTER was planned as a 2‐year randomized controlled trial of two lifestyle interventions in 2000 older adults at risk for dementia due to well‐established factors. The primary outcome is a global cognition composite that permits harmonization with FINGER.RESULTSU.S. POINTER is centrally coordinated and conducted at five clinical sites (ClinicalTrials.gov: NCT03688126). Outcomes assessments are completed at baseline and every 6 months. Both interventions focus on exercise, diet, cognitive/social stimulation, and cardiovascular health, but differ in intensity and accountability. The study partners with a worldwide network of similar trials for harmonization of methods and data sharing.DISCUSSIONU.S. POINTER is testing a potentially sustainable intervention to support brain health and Alzheimer's prevention for Americans. Impact is strengthened by the targeted participant diversity and expanded scientific scope through ancillary studies.
Achiral Dichroic Dyes‐mediated Circularly Polarized Emission Regulated by Orientational Order Parameter through Cholesteric Liquid Crystals
Authors: Li Yang , Chen Yihan , Li Hang , Liu Chao , Li Lulu , Quan Yiwu , Cheng Yixiang 
Published: September 2023

AbstractIt is noteworthy that cholesteric liquid crystal (CLC) platforms have been witnessed in high‐performance circularly polarized luminescence (CPL) behaviors through the highly organized chiral co‐assembled arrangement of achiral dyes. However, most CPL‐active design strategies are closely relative to the helix co‐assembly structure of CLC rather than achiral dyes. Herein, we developed an intriguing regulation strategy for CPL‐active CLC materials. They were regulated using the orientational order parameter (SF) of achiral dichroic dyes as an incisive probe for the order arrangement degree of achiral dyes in CLC media. The I‐shaped phenothiazine derivative PHECN dye (SF=0.30) emitted a strong CPL signal (|glum|=0.47). In contrast, the T‐shaped derivative (PHEBen) dye (SF=0.09) showed a weak circular polarization level (|glum|=0.07) at similar CLC textures. Most interestingly, this kind of dichroic PHECN dye with a higher SF could greatly improve the contrast ratio of CPL (Δglum=0.47) and emission intensity (ΔFL=46.0 %) at direct‐current electric field compared with the T‐shaped PHEBen (Δglum=0.07 and ΔFL=1.0 %) in CLC. This work demonstrates that an induced CPL emission can be mediated using achiral dichroic dye, which will open a new avenue for developing excellent CPL‐active display materials.