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Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for flexible and Stretchable Supercapacitors

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Nano-Micro Letters 2025年第2期17卷 447-462页

作者： haonan zhang Cheng hao Tongtong fu Dian Yu Jane Howe Kaiwen Chen Ning Yan hao Ren Huamin Zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mf cm^(−2)(241 f g^(−1))and 514 mf cm^(−2)(95 f g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

SIMULTANEOUS IMAGING Of A lacZ-MARKED TUMOR AND MICROVASCULATURE MORPHOLOGY IN VIVO BY DUAL-WAVELENGTH PHOTOACOUSTIC MICROSCOPY

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Journal of Innovative Optical Health Sciences 2008年第2期1卷 207-215页

作者： LI LI hao f.zhang ROGER J.ZEMP konstantin maslov LIHONG V.WANG Optical Imaging Laboratory Department of Biomedical Engineering Washington University in St.Louis St.LouisMissouri 63130USA Department of Electrical Engineering University of Wisconsin-Milwaukee Milwaukee Wisconsin 53201USA Department of Electrical and Computer Engineering University of Alberta EdmontonAlberta T6G2V4Canada

Photoacoustic molecular imaging,combined with the reporter-gene technique,can provide a valuable tool for cancer *** expression of the lacZ reporter gene can be imaged using photoacoustic imaging following the injection of X-gal,a colorimetric assay for the lacZ-encoded enzymeβ-***-wavelength photoacoustic microscopy was used to non-invasively image the detailed morphology of a lacZ-marked 9L gliosarcoma and its surrounding microvasculature simultaneously in vivo,with a superior resolution on the order of 10μ***-feeding vessels were found,and the expression level of lacZ in tumor was *** future development of new absorption-enhancing reporter-gene systems,we anticipate this strategy can lead to a better understanding of the role of tumor metabolism in cancer initiation,progression,and metastasis,and in its response to therapy.

关键词： Photoacoustic molecular imaging gene expression reporter gene

Characterization of retinal ganglion cell damage at single axon bundle level in mice by visible-light optical coherence tomography fibergraphy

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Neural Regeneration Research 2023年第1期18卷 135-136页

作者： Xiaorong Liu hao f.zhang Department of Biology Department of PsychologyProgram in Fundamental NeuroscienceUniversity of VirginiaCharlottesvilleVAUSA Department of Biomedical Engineering Northwestern UniversityEvanstonILUSA

Retinal ganglion cells(RGCs)receive synaptic inputs through their dendritic trees in the inner plexiform layer(IPL)and convey the visual information via their axons which form the optic nerve to the brain(Sanes and Masland,2015).In glaucoma,RGCs and their axons degenerate and die,leading to irreversible vision loss and eventually blindness if left untreated(Quigley,2016).

关键词： bundle visible eventually

Symmetrically dispersed spectroscopic singlemolecule localization microscopy

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Light(Science & Applications) 2020年第1期9卷 1154-1163页

作者： Ki-Hee Song Yang zhang Benjamin Brenner Cheng Sun hao f.zhang Department of Biomedical Engineering Northwestern University2145 Sheridan Rd.EvanstonIL 60208USA Department of Mechanical Engineering Northwestern University2145

Spectroscopic single-molecule localization microscopy(sSMLM)was used to achieve simultaneous imaging and spectral analysis of single molecules for the first *** sSMLM fundamentally suffers from a reduced photon budget because the photons from individual stochastic emissions are divided into spatial and spectral ***,both spatial localization and spectral analysis only use a portion of the total photons,leading to reduced precisions in both *** improve the spatial and spectral precisions,we present symmetrically dispersed sSMLM,or SDsSMLM,to fully utilize all photons from individual stochastic emissions in both spatial and spectral *** achieved 10-nm spatial and 0.8-nm spectral precisions at a total photon budget of *** with the existing sSMLM using a 1:3 splitting ratio between spatial and spectral channels,SDsSMLM improved the spatial and spectral precisions by 42% and 10%,respectively,under the same photon *** also demonstrated multicolour imaging of fixed cells and three-dimensional single-particle tracking using *** enables more precise spectroscopic single-molecule analysis in broader cell biology and material science applications.

关键词： dispersed spectroscopic stochastic

A standardized crush tool to produce consistent retinal ganglion cell damage in mice

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Neural Regeneration Research 2021年第7期16卷 1442-1443页

作者： Pedro Norat Jingyi Gao Sauson Soldozy hao f.zhang Xiaorong Liu Department of Biology University of VirginiaCharlottesvilleVAUSA Department of Neurological Surgery University of Virginia Health SystemCharlottesvilleVAUSA Department of Biomedical Engineering Northwestern UniversityEvanstonILUSA Department of Psychology University of VirginiaCharlottesvilleVAUSA

In the mammalian central ner vous system, neuronal loss induced by injuries or in neurodegenerative diseases is often irreversible(Quigley, 2016;Gan et al., 2018).following the disease insult, the surviving neurons may continue to lose their functionality because their axons degenerate and fail to maintain proper synaptic connections, and the underlying molecular and cellular mechanisms remain to be investigated(Raff et al., 2002;Bei et al., 2016;Quigley, 2016).

关键词： irreversible maintain degenerate

Visible light optical coherence tomography measures retinal oxygen metabolic response to systemic oxygenation

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Light(Science & Applications) 2015年第1期4卷 197-206页

作者： Ji Yi Wenzhong Liu Siyu Chen Vadim Backman Nader Sheibani Christine M.Sorenson Amani A.fawzi Robert A.Linsenmeier hao f.zhang Department of Biomedical Engineering Northwestern UniversityEvanstonIL 60208USA McPherson Eye Research Institute University of WisconsinMadisonWI 53705USA Department of Ophthalmology Northwestern UniversityChicago Illinois 60611USA Department of Neurobiology Northwestern UniversityEvanstonIL 60208USA

The lack of capability to quantify oxygen metabolism noninvasively impedes both fundamental investigation and clinical diagnosis of a wide spectrum of diseases including all the major blinding diseases such as age-related macular degeneration,diabetic retinopathy,and *** visible light optical coherence tomography(vis-OCT),we demonstrated accurate and robust measurement of retinal oxygen metabolic rate(rMRO2)noninvasively in rat *** continuously monitored the regulatory response of oxygen consumption to a progressive hypoxic *** found that both oxygen delivery,and rMRO2 increased from the highly regulated retinal circulation(RC)under hypoxia,by 0.2860.08 μL min(^-1)(p,0.001),and 0.2060.04 μL min(^-1)(p,0.001)per 100 mmHg systemic pO2 reduction,*** increased oxygen extraction compensated for the deficient oxygen supply from the poorly regulated choroidal *** from an oxygen diffusion model based on previous oxygen electrode measurements corroborated our in vivo *** believe that vis-OCT has the potential to reveal the fundamental role of oxygen metabolism in various retinal diseases.

关键词： oxygen metabolism retinal circulation visible light optical coherence tomography

High-frequency 3D Photoacoustic Computed Tomography Using an Optical Microring Resonator

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Biomedical Engineering frontiers 2022年第1期3卷 348-355页

作者： Qiangzhou Rong Youngseop Lee Yuqi Tang Tri Vu Carlos Taboada Wenhan Zheng Jun Xia David A.Czaplewski hao f.zhang Cheng Sun Junjie Yao Department of Biomedical Engineering Duke UniversityDurhamNCUSA 27708 Department of Biomedical Engineering Northwestern UniversityEvanstonIL 60208USA Department of Mechanical Engineering Northwestern UniversityEvanstonIL 60208USA Optical&Ultrasonic Imaging Laboratory University at BuffaloNorth Campus BuffaloNY 14260USA Center for Nanoscale Materials Argonne National LaboratoryArgonneIL 60439USA

3D photoacoustic computed tomography(3D-PACT)has made great advances in volumetric imaging of biological tissues,with high spatial-temporal resolutions and large penetration *** development of 3D-PACT requires high-performance acoustic sensors with a small size,large detection bandwidth,and high *** this work,we present a new high-frequency 3D-PACT system that uses a microring resonator(MRR)as the acoustic *** MRR sensor has a size of 80μm in diameter and was fabricated using the nanoimprint lithography *** the MRR sensor,we have developed a transmission-mode 3D-PACT system that has achieved a detection bandwidth of~23 MHz,an imaging depth of~8 mm,a lateral resolution of 114μm,and an axial resolution of 57μ*** have demonstrated the 3D PACT’s performance on in vitro phantoms,ex vivo mouse brain,and in vivo mouse ear and *** MRR-based 3D-PACT system can be a promising tool for structural,functional,and molecular imaging of biological tissues at depths.

关键词： resonator lithography resolution

fast and high-fidelity generation of photonic Greenberger-Horne-Zeilinger states in circuit QED

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Communications in Theoretical Physics 2020年第1期72卷 52-59页

作者： Jingwei Chen Guan-hao feng Hong-hao zhang L f Wei School of Physics Sun Yat-sen UniversityGuangzhou 510275China Photonics Laboratory and Institute of functional Materials College of ScienceDonghua UniversityShanghai 201620China Information Quantum Technology Laboratory School of Information Science and TechnologySouthwest Jiaotong UniversityChengdu 610031China

A fast scheme to generate Greenberger-Horne-Zeilinger states between different cavities in circuit QED systems is *** implement this scheme,we design a feasible experimental device with three qubits and three *** this device,all the couplings between qubit and qubit,cavity and qubit are tunable and are independent with frequencies,and thus the shortcut to adiabaticity technique can be directly applied in our *** is demonstrated that the GHZ state can be generated rapidly with high fidelity in our scheme.

关键词： GHZ states shortcut to adiabaticity quantum state engineering circuit QED

Analysis of the ionospheric variability based on wavelet decomposition

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Science China(Technological Sciences) 2015年第1期58卷 174-180页

作者： SHI hao zhang DongHe LIU YuMei hao YongQiang Department of Geophysics Peking University National Key Laboratory of Electromagnetic Environment China Research Institute of Radio Wave Propagation

In this work,the ionospheric variability is analyzed by applying the wavelet decomposition technique to the noontime fo f2,f10.7,interplanetary magnetic field(IMf)Bz,Ap,and lower thermospheric temperature at pressure of 10?4 h Pa in *** show that the variance of periodic oscillations in the ionosphere is largest in the 2–4-day period and declines with the increase of the *** maximum variance of the periodic oscillations in solar irradiation is in the 16–32-day *** geomagnetic activities,most of the variance is about equally distributed on intervals of periods shorter than 32 *** distributions of IMf Bz and lower thermospheric temperature are similar to those of the *** show the maximum in the 2–4-day period and decline with the increase of the *** analyzing the distributions of the variances,the potential connections between the ionosphere and the external sources are discussed.

关键词： ionosphere variability fo f2 Wavelet decomposition 2–32-day period