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MXene-Based Elastomer Mimetic StretchableSensors: Design, Properties, and Applications

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Nano-Micro Letters 2024年第7期16卷 295-342页

作者： Poushali Das Parham Khoshbakht Marvi Sayan Ganguly Xiaowu(Shirley)Tang bo wang Seshasai Srinivasan Amin Reza Rajabzadeh andreas rosenkranz School of Biomedical Engineering McMaster University1280 Main Street WestHamiltonON L8S 4L8Canada Department of Chemistry and Waterloo Institute for Nanotechnology(WIN) University of Waterloo200 University Ave WestWaterlooONCanada Centre for Eye and Vision Research(CEVR) 17W Hong Kong Science ParkShatinHong KongPeople’s Republic of China Chair of Functional Materials Department of Materials Science and EngineeringSaarland UniversitySaarbruckenGermany W booth School of Engineering Practice and Technology McMaster University1280 Main Street WestHamiltonON L8S 4L7Canada Department for Chemical Engineering Biotechnology and MaterialsUniversity of ChileSantiagoChile

Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human-machine *** of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive ***,a new family of 2D nanomaterials,have been draw-ing attention since the last decade due to their high electronic conduc-tivity,processability,mechanical robustness and chemical *** this review,we encompass the fabrication of MXene-based polymeric nanocomposites,their structure-property relationship,and applications in the flexible sensor ***,our discussion is not only lim-ited to sensor design,their mechanism,and various modes of sensing platform,but also their future perspective and market throughout the *** our article,we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.

关键词： Flexible sensor 2D nanomaterials MXene Wearable and conductive Applications

Tribological behaviour of Ti_(3)C_(2)T_(x) nano-sheets: Substrate-dependent tribo-chemical reactions

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Friction 2023年第8期11卷 1522-1533页

MXenes,a newly emerging class of layered two dimensional(2D)materials,are promising solid lubricants due to their 2D structure consisting of weakly-bonded layers with a low shear strength and ability to form beneficial *** work aims at evaluating for the first time MXenes lubrication performance and tribofilm formation ability on different metallic substrates(mirror-lapped Fe and Cu discs).After depositing MXenes via ethanol(1 wt%)on the substrates,pronounced differences in the resulting substrate-dependent frictional evolution are *** MXenes are capable to reduce friction for both substrates after the full evaporation of ethanol,MXenes lubricating effect on Cu is long-lasting,with a 35-fold increased lifetime compared to *** spectra acquired in the wear-tracks of the substrates and counter-bodies reveal notable differences in the friction-induced chemical changes depending on the substrate *** case of Fe,the progressive failure of MXenes lubrication generates different Fe oxides on both the substrate and the ball,resulting in continuously increasing friction and a poor lubrication *** Cu,sliding induces the formation of a Ti_(3)C_(2)-based tribofilm on both rubbing surfaces,enabling a long-lasting lubricating *** work boosts further experimental and theoretical work on MXenes involved tribo-chemical processes.

关键词： Mxenes Ti_(3)C_(2)T_(x) nano-sheets coefficient of friction Raman spectroscopy tribochemistry

Occupational physical activity, all-cause, cardiovascular disease, and cancer mortality in 349,248 adults: Prospective and longitudinal analyses of the MJ Cohort

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Journal of Sport and Health Science 2024年第4期13卷 579-589页

作者： Emmanuel Stamatakis Matthew N.Ahmadi Tiana-Lee Elphick bo-Huei Huang Susan Paudel Armando Teixeira-Pinto Li-Jung Chen borja del Pozo Cruz Yun-Ju Lai andreas Holtermann Po-Wen Ku Sydney School of Health Sciences Faculty of Medicine and HealthCharles Perkins CentreUniversity of SydneySydneyNSW 2006Australia Sydney School of Public Health Faculty of Medicine and HealthUniversity of SydneySydneyNSW 2006Australia Department of Exercise Health Science “National”Taiwan University of SportTaichung 40404China Department of Sports Science and Clinical Biomechanics University of Southern DenmarkOdense 5230Denmark Division of Endocrinology and Metabolism Department of Internal MedicinePuli Branch of Taichung Veterans General HospitalNantou 54552China National Research Centre for the Working Environment Copenhagen 2100Denmark Graduate Institute of Sports and Health Management “National”Chung Hsing UniversityTaichung 40227China

Background:Evidence on the health benefits of occupational physical activity(OPA)is *** examined the associations of baseline OPA and OPA changes with all-cause,cardiovascular disease(CVD),and cancer mortality and survival ***:This study included prospective and longitudinal data from the MJ Cohort,comprising adults over 18 years recruited in 1998-2016,349,248 adults(177,314 women)with baseline OPA,of whom 105,715(52,503 women)had 2 OPA measures at 6.3±4.2 years(mean±SD)*** were baseline OPA,OPA changes,and baseline leisure-time physical ***:Over a mean mortality follow-up of 16.2±5.5 years for men and 16.4±5.4 years for women,11,696 deaths(2033 of CVD and 4631 of cancer causes)in men and 8980 deaths(1475 of CVD and 3689 of cancer causes)in women *** moderately heavy/heavy baseline OPA was beneficially associated with all-cause mortality in men(multivariable-adjusted hazard ratio(HR)=0.93,95%confidence interval(95%CI):0.89-0.98 compared to light OPA)and women(HR=0.86,95%CI:0.79-0.93).Over a mean mortality follow-up of 12.5±4.6 years for men and 12.6±4.6 years for women,OPA decreases in men were detrimentally associated(HR=1.16,95%CI:1.01-1.33)with all-cause mortality,while OPA increases in women were beneficially(HR=0.83,95%CI:0.70-0.97)associated with the same *** or changes in OPA showed no associations with CVD or cancer ***:Higher baseline OPA was beneficially associated with all-cause mortality risk in both men and *** longitudinal OPA analyses partly confirmed the prospective findings,with some discordance between sex groups.

关键词： Cancer Cardiovascular disease Epidemiology Mortality

Unprecedented differences in the diamond nucleation density between carbon-and silicon-faces of 4H-silicon carbides

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Chinese Chemical Letters 2020年第7期31卷 2013-2018页

作者： bo wang Pitsiri Sukkaew Guichen Song andreas rosenkranz Yunxiang Lu Kazhihito Nishimura Jia wang Jilei Lyu Yang Cao Jian Yi Lars Ojamae He Li Nanjiang Key Laboratory of Marine New Materials and Related Technology Zhejiang Key Laboratory of Marine Materials and Protection TechnologyNingbo Institute of Material Technology&EngineeringChinese Academy of SciencesNingbo 315201China Department of Physics Chemistryand BiologyLinkoping UniversitySE-58183 LinkopingSweden Department of Chemical Engineering Biotechnology and MaterialsUniversidad de ChileAvenida Beauchef 851SantiagoChile Mechanical Systems Engineering Kogakuin UniversityTokyo 192-0015Japan Department of Mechanical and Materials Engineering University of Nebraska-LincolnLincolnNE 68588United State

4H-silicon carbides deposited by diamond films have wide applications in many fields such as semiconductor heterojunction,heat sink and mechanical *** plays a critical role in the deposition of the diamond film on 4H-silicon ***,as a typical polar material,the fundamental mechanism of diamond nucleation on different faces of 4H-silicon carbides has not been fully understood *** this contribution,nucleation of diamond was performed on the carbon-and silicon-faces of 4H-silicon carbides in a direct current chemical vapor deposition *** nucleation density on the carbon-face is higher by 2-3 orders of magnitude compared to the *** electron microscopy verifies that there are high density diamond nuclei on the interface between the carbon-face and the diamond film,which is different from columnar diamond growth structure on the *** state theory calculation reveals that the unprecedented distinction of the nucleation density between the carbon-face and the silicon-face is attributed to different desorption rates of the absorbed hydrocarbon *** addition,kinetic model simulations demonstrate that it is more difficult to form CH2(s)-CH2(s)dimers on silicon-faces than carbon-faces,resulting in much lower nucleation densities on silicon-faces.

关键词： 4H-silicon carbide Diamond nucleation mechanism Transmission electron microscopy Transition state theory Kinetic model simulation

A novel synthetic route to rac-(Z)-recifeiolide from cyclooctanone and acetaldehyde

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Chinese Chemical Letters 2015年第11期26卷 1393-1396页

作者： Wen-bo Mu Yue Zou Quan-Rui wang.andreas Goeke Department of Chemistry Fudan University Fragrance Ingredient Research Center Givaudan Fragrances (Shanghai) Ltd.

A novel synthetic approach to （±）-Z-recifeiolide 6, a 12-membered-ring lactone which can be selectively isomerized into （E）-recifeiolide, a natural antibiotic product isolated from fungus （Cephalosporium recifei） is reported. The synthesis is accomplished in five steps starting from readily available cyclooctanone and acetaldehyde based on the Lewis acid-catalyzed TMS-directed oxy-2-oxonia-Cope rearrangement. The work represents a novel strategy to assemble related macrolides.

关键词： SynthesisAlkenolideRecifeiolideOxonia-Cope rearrangementLewuis acid

Geometric Evolution Laws for Thin Crystalline Films: Modeling and Numerics

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Communications in Computational Physics 2009年第8期6卷 433-482页

作者： bo Li John Lowengrub andreas Ratz Axel Voigt Department of Mathematics and Center for Theoretical Biological Physics University of California at San DiegoLa JollaCA 92093-0112USA Department of Mathematics University of California at IrvineIrvineCA 92697-3875USA Institut fur Wissenschaftliches Rechnen Technische Universitat Dresden01062 DresdenGermany Department of Physics Technical University of Helsinki02015 EspooFinland.

Geometrical evolution laws are widely used in continuum modeling of surface and interface motion in materials *** this article,we first give a brief review of various kinds of geometrical evolution laws and their variational derivations,with an emphasis on strong *** then survey some of the finite element based numerical methods for simulating the motion of interfaces focusing on the field of thin film *** discuss the finite element method applied to front-tracking,phase-field and level-set *** describe various applications of these geometrical evolution laws to materials science problems,and in particular,the growth and morphologies of thin crystalline films.

关键词： Interface problems geometric evolution laws anisotropy kinetics front tracking level-set phase-field chemical vapor deposition molecular beam epitaxy liquid phase epitaxy electrodeposition

Trajectories of response in schizophrenia-spectrum disorders: A one-year prospective cohort study of antipsychotic effectiveness

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World Journal of Psychiatry 2022年第3期12卷 521-532页

作者： Petros Drosos Erik Johnsen Christoffer andreas Bartz-Johannessen Tor Ketil Larsen Solveig Klæbo Reitan Maria Rettenbacher Rune andreas Kroken TIPS-Network for Clinical Research in Psychosis Clinic For Adult Mental HealthStavanger University HospitalStavanger 4011Norway NORMENT Division of PsychiatryHaukeland University HospitalBergen 5036Norway Department of Clinical Medicine University of BergenBergen 5007Norway Institute for Mental Health St Olav's University HospitalTrondheim 7030Norwa Department of Mental Health Norwegian University of Natural Science and TechnologyTrondheim 7491Norway Department of Psychiatry and Psychotherapy Medical University InnsbruckInnsbruck 6020Austria

BACKGROUND Antipsychotic drugs remain the mainstay of schizophrenia treatment;however,their effectiveness has been questioned,and it is not possible to predict the response to a specific antipsychotic drug in an individual ***,it is important to compare the effectiveness of the various antipsychotics and search for possible response *** To investigate the effectiveness of antipsychotic drugs,we examined response trajectories and predictors for belonging to different trajectory *** The Bergen-Stavanger-Innsbruck-Trondheim(BeSt InTro)trial compared the effectiveness of three atypical antipsychotics-amisulpride,aripiprazole,and olanzapine-in a prospective,semirandomized,rater-blind,head-to-head *** participants with a schizophrenia spectrum disorder diagnosis,according to international classification of diseases,Tenth Revision(ICD-10)F20–29,were *** were followed for a period of 12 mo,with assessments at baseline;after one,three and six weeks;and after three,six,nine and 12 mo.A latent class mixed model was fitted to our *** three-trajectory model based on the Positive and Negative Syndrome Scale(PANSS)total score reduction was found to have adequate fit,and the study drugs,as well as various demographic and clinical parameters,were tested as predictors for belonging to the different trajectory *** Overall,144 participants were included,and 41%completed the 12-mo study *** largest trajectory group,consisting of 74%of participants,showed a PANSS total score reduction of 59%from baseline to 12 mo(Good response group).A trajectory group comprising 13%of participants had their PANSS total score reduced by 82.5%at 12 mo(Strong response group),while the last response trajectory group comprising 13%of the participants had a PANSS total score reduction of 13.6%(Slight response group).The largest part of the total reduction for the Good and Strong response groups occurred at six weeks of treatment,

关键词： Schizophrenia Response Trajectories Treatment Antipsychotic drugs

Relation between gravitational mass and baryonic mass for non-rotating and rapidly rotating neutron stars

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Frontiers of physics 2020年第2期15卷 119-128页

作者： He Gao Shun-Ke Ai Zhou-Jian Cao Bing Zhang Zhen-Yu Zhu Ang Li Nai-bo Zhang andreas Bauswein Department of Astronomy Beijing Normal UniversityBeijing 100875China Department of Physics and Astronomy University of Nevada Las VegasNV 89154USA Department of Astronomy Xiamen UniversityXiamen 361005China Institute for Theoretical Physics Max-von-Laue-Strasse 160438 FrankfurtGermany Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and PhysicsInstitute of Space SciencesShandong UniversityWeihai 264209China GSI Helmholtzzentrum fiir Schwerionenforschung Planckstrafie 164291 DarmstadtGermany

With a selected sample of neutron star(NS)equations of state(EOSs)that are consistent with the current observations and have a range of maximum masses,we investigate the relations between NS gravitational mass Mg and baryonic mass and the relations between the maximum NS mass supported through uniform rotation(Mmax)and that of nonrotating NSs(Mtov).We find that for an EOS-independent quadratic,universal transformation formula(Mb=Mg+A×M^2/g),the best-fit A value is 0.080 for non-rotating NSs,0.064 for maximally rotating NSs,and 0.073 when NSs with arbitrary rotation are *** residual error of the transformation is?0.1M⊙ for non-spin or maximum-spin,but is as large as?0.2M⊙ for all *** different EOSs,we find that the parameter A for non-rotating NSs is proportional to R^-1/1.4(where R1.4 is NS radius for 1.4M⊙ in units of km).For a particular EOS,if one adopts the best-fit parameters for different spin periods,the residual error of the transformation is smaller,which is of the order of O.O1M⊙ for the quadratic form and less than O.O1M⊙ for the cubic form(Mb=Mg+A1×M^2/g+A2×M^3/g).We also find a very tight and general correlation between the normalized mass gain due to spin △m≡(Mmax-MTOV)MTOV and the spin period normalized to the Keplerian period P,i.e.,log10 △m=(-2.74±0.05)log10 P+log10(0.20±0.01),which is independent of EOS *** empirical relations are helpful to study NS-NS mergers with a long-lived NS merger product using multi-messenger *** application of our results to GW170817 is discussed.

关键词： gravitational waves

From Gradient Elasticity to Gradient Interatomic Potentials: The Case-Study of Gradient London Potential

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Journal of Applied Mathematics and Physics 2020年第9期8卷 1826-1837页

作者： Kostas Parisis Fei Shuang bo wang Pu Hu andreas Giannakoudakis Avraam Konstantinidis Aristotle University of Thessaloniki Thessaloniki Greece University of Florida Gainesville FL USA

Motivated by the special theory of gradient elasticity (GradEla), a proposal is advanced for extending it to construct gradient models for interatomic potentials, commonly used in atomistic simulations. Our focus is on London’s quantum mechanical potential which is an analytical expression valid until a certain characteristic distance where “attractive” molecular interactions change character and become “repulsive” and cannot be described by the classical form of London’s potential. It turns out that the suggested internal length gradient (ILG) generalization of London’s potential generates both an “attractive” and a “repulsive” branch, and by adjusting the corresponding gradient parameters, the behavior of the empirical Lennard-Jones potentials is theoretically captured.

关键词： Gradient Elasticity London’s Potential Gradient Interatomic Potentials