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Study on Magnetic Responsibility of Rare Earth Ferrite/Polyacrylamide Magnetic Microsphere 被引量:2
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作者 张明 王志峰 +3 位作者 张红 代少俊 邱关明 冈本弘 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第3期285-287,共3页
In inverse microemulsion, rare earth ferrite/polyacrylamide magnetic microsphere were prepared and their magnetic responsibility were studied by magnetic balance. Results indicate that the magnetic responsibility of m... In inverse microemulsion, rare earth ferrite/polyacrylamide magnetic microsphere were prepared and their magnetic responsibility were studied by magnetic balance. Results indicate that the magnetic responsibility of microsphere relates to magnetic moment of rare earth ion, and it can be improved by the addition of dysprosium ion of high magnetic moment. Dysprosium content has an effect on magnetic responsibility of dysprosium ferrite/polyacrylamide magnetic microsphere. The microsphere displays strong magnetic responsibility when the molar ratio of Dy3+/iron is 0.20. 展开更多
关键词 rare earth ferrite magnetic microsphere magnetic responsibility rare earths
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Control of light scattering by nanoparticles with optically-induced magnetic responses 被引量:2
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作者 刘伟 Andrey E. Miroshnichenko Yuri S. Kivshar 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第4期41-51,共11页
Conventional approaches to control and shape the scattering pattems of light generated by different nanostructures are mostly based on engineering of their electric response due to the fact that most metallic nanostru... Conventional approaches to control and shape the scattering pattems of light generated by different nanostructures are mostly based on engineering of their electric response due to the fact that most metallic nanostructures support only electric resonances in the optical frequency range. Recently, fuelled by the fast development in the fields of metamaterials and plasmonics, artificial optically-induced magnetic responses have been demonstrated for various nanostructures. This kind of response can be employed to provide an extra degree of freedom for the efficient control and shaping of the scattering patterns of nanoparticles and nanoantennas. Here we review the recent progress in this research direction of nanoparticle scattering shaping and control through the interference of both electric and optically-induced magnetic responses. We discuss the magnetic resonances supported by various structures in different spectral regimes, and then summarize the original results on the scattering shaping involving both electric and magnetic responses, based on the interference of both spectrally separated (with different resonant wavelengths) and overlapped dipoles (with the same resonant wavelength), and also other higher-order modes. Finally, we discuss the scattering control utilizing Fano resonances associated with the magnetic responses. 展开更多
关键词 optically-induced magnetic response scattering control Mie resonance Fano resonance
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A shape-reconfigurable,light and magnetic dual-responsive shape-memory micropillar array chip for droplet manipulation
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作者 Wen-Qi Ye Wen-Xin Fu +2 位作者 Xiao-Peng Liu Chun-Guang Yang Zhang-Run Xu 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第1期456-460,共5页
Droplet manipulation on an open surface has great potential in chemical analysis and biomedicine engineering.However,most of the reported platforms designed for the manipulation of water droplets cannot thoroughly sol... Droplet manipulation on an open surface has great potential in chemical analysis and biomedicine engineering.However,most of the reported platforms designed for the manipulation of water droplets cannot thoroughly solve the problem of droplet evaporation.Herein,we report a shape-reconfigurable micropillar array chip for the manipulation of water droplets,oil droplets and water-in-oil droplets.Water-in-oil droplets provide an enclosed space for water droplets,preventing the evaporation in an open environment.Perfluoropolyether coated on the surface of the chip effectively reduces the droplet movement resistance.The micropillar array chip has light and magnetic dual-response due to the Fe3O4 nanoparticles and the reduced iron powder mixed in the shape-memory polymer.The micropillars irradiated by a near-infrared laser bend under the magnetic force,while the unirradiated micropillars still keep their original shape.In the absence of a magnetic field,when the micropillars in a temporary shape are irradiated by the near-infrared laser to the transition temperature,the micropillars return to their initial shape.In this process,the surface morphology gradient caused by the deformation of the micropillars and the surface tension gradient caused by the temperature change jointly produce the driving force of droplet movement. 展开更多
关键词 MICROFLUIDICS Droplet manipulation Micropillar array Shape memory polymer magnetic response Light response
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Uncovering the magnetic response of open-shell graphene nanostructures on metallic surfaces at different doping levels
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作者 Zengfu Ou Jun Wang +6 位作者 Jihai Zhang Yukang Ding Shenwei Chen Wenya Zhai Jingcheng Li Dingyong Zhong Donghui Guo 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2024年第2期142-148,共7页
Open-shell graphene nanostructures(GNs)are promising candidates for future spintronics and quantum technologies.Recent progress based on on-surface synthetic approach has successfully created such GNs on metallic surf... Open-shell graphene nanostructures(GNs)are promising candidates for future spintronics and quantum technologies.Recent progress based on on-surface synthetic approach has successfully created such GNs on metallic surfaces.Meanwhile,the doping effect of metallic surfaces is inevitably present and can significantly tune their electronic and magnetic properties.Here,we investigate the zigzag end states of open-shell 7-armchair graphene nanoribbons(7-AGNRs)on Au(111),Au(100)and Ag(111)surfaces.Combined with the manipulation of a scanning tunneling microscope,we demonstrate that the end states can be tuned from empty states to singly occupied states and to doubly occupied states by substrate doping.Furthermore,the singly occupied states can be finely tuned,with the occupancy number of the states and related magnetic behaviors uncovered by experiments at different temperatures and magnetic fields.Our results provide a comprehensive study of the magnetic response of open-shell GNs on metallic surfaces at different doping levels. 展开更多
关键词 open-shell graphene nanostructures magnetic response metallic substrate doping Kondo resonance scanning tunneling microscopy/spectroscopy
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Observations on a magnetotactic bacteria-grazing ciliate in sediment from the intertidal zone of Huiquan Bay,China 被引量:1
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作者 Si CHEN Kaixuan CUI +5 位作者 Wenyan ZHANG Yicong ZHAO Tian XIAO Hongmiao PAN Wuchang ZHANG Long-Fei WU 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2021年第6期2053-2062,共10页
Magnetotactic bacteria(MTB)are a group of prokaryotes having the ability to orient and swim along geomagnetic field lines because they contain intracellular magnetosomes that are synthesized through a biomineralizatio... Magnetotactic bacteria(MTB)are a group of prokaryotes having the ability to orient and swim along geomagnetic field lines because they contain intracellular magnetosomes that are synthesized through a biomineralization process.Magnetosomes have recently also been found in unicellular eukaryotes,which are referred to as magnetically responsive protists(MRPs).The magnetosomes have three origins in MRPs.In this study,we characterized a MTB-grazing ciliated MRP that was magnetically collected from intertidal sediment of Huiquan Bay,Qingdao,China.Based on 18S rRNA gene sequence analysis,the ciliated MRP was tentatively identified as Uronemella parafi lificum HQ.Using transmission electron microscopy,we observed that magnetosomes having 2-3 shapes were randomly distributed within this ciliate.Energydispersive X-ray spectroscopy and high-resolution transmission electron microscopy images of the magnetosomes were consistent with them being composed of magnetite.Magnetosomes having the same shape and mineral composition were also detected in MTB that occurred in the same environment as the ciliated MRP.Statistical analysis showed that the size and shape of the magnetosomes in the ciliated MRP were similar to those in MTB.The results suggest that this ciliated MRP can graze,ingest,and digest various types of MTB.It is certainly worth noting that this is the first record of MRPs in Asian aquatic sediment and suggesting they might be widely distributed.These results also support the assertion that MRPs probably contribute to the ecological cycles of iron,and expand possibilities for research into the mechanism of magnetoreception in eukaryotes. 展开更多
关键词 magnetically responsive protist CILIATE magnetotactic bacteria MAGNETOSOME graze MAGNETORECEPTION
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Experimental Study on Split-Ring Resonators with Different Slit Widths
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作者 Pedro J.Castro Joaquim J.Barroso Joaquim P.Leite Neto 《Journal of Electromagnetic Analysis and Applications》 2013年第9期366-370,共5页
Metamaterial one-dimensional periodic structures are composed of split-ring resonators, which can display electric permittivity and magnetic permeability simultaneously negative, are studied experimentally. In the pre... Metamaterial one-dimensional periodic structures are composed of split-ring resonators, which can display electric permittivity and magnetic permeability simultaneously negative, are studied experimentally. In the present study, each resonator is made up of two concentric circular copper rings patterned on a substrate of kapton, with slits diametrically opposite each other and with the line of the splits along the longitudinal direction of the periodic array containing seven split rings evenly spaced. The experiments consist in inserting the metamaterial slab into a square waveguide of side length 6 mm, corresponding to a cutoff frequency of 25 GHz. Transmission bands due to magnetic and electrical responses are identified for slits with aperture widths of 1 mm and 2 mm, centered at 5.67 and 6.12 GHz frequencies, respectively, values well below the 25 GHz frequency cutoff, so characterizing a medium with negative permeability and permittivity. 展开更多
关键词 METAMATERIALS Split-Ring Resonators magnetic Response Electric Response Left-Handed Transmission Band
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Dynamic torque response analysis of IPMSM in flux weakening region for HEV applications
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作者 刘晓红 张幽彤 黄文卿 《Journal of Beijing Institute of Technology》 EI CAS 2015年第3期355-360,共6页
An over-modulation based vector control strategy for interior permanent magnet synchronous machine( IPMSM) is proposed and investigated. The strategy increases the reference flux weakening voltage to improve efficie... An over-modulation based vector control strategy for interior permanent magnet synchronous machine( IPMSM) is proposed and investigated. The strategy increases the reference flux weakening voltage to improve efficiency in flux weakening region of IPMSMwith the same dynamic torque response performance in standard SV Mtechnique. The relationship between dynamic torque performance and the reference flux weakening voltage is also discussed. In order to achieve fast and smooth shift process,the torque response must be less than 20 ms in the parallel hybrid electric vehicle( HEV),according to this,modeling and experimental studies were carried out. The results show that the proposed strategy can achieve the same dynamic and steady state torque performance with higher reference flux weakening voltage,which means higher efficiency. 展开更多
关键词 interior permanent magnet synchronous machine(IPMSM) over-modulation flux weakening dynamic torque response hybrid electric vehicle(HEV)
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Specific metabolic impairments indicate loss of sustained liver improvements in metabolic dysfunction-associated steatotic liver disease treatment
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作者 Ling Luo Junzhao Ye +8 位作者 Shuyu Zhuo Bo Ma Weiyi Mai Xiaopei Cao Liuqin Liang Wei Wang Shiting Feng Zhi Dong Bihui Zhong 《Hepatobiliary Surgery and Nutrition》 SCIE 2024年第4期632-649,I0025-I0035,共29页
Background:High liver fat content(LFC)induces increased risks of both hepatic and extrahepatic progression in metabolic dysfunction-associated steatotic liver disease(MASLD),while maintaining a significant decline in ... Background:High liver fat content(LFC)induces increased risks of both hepatic and extrahepatic progression in metabolic dysfunction-associated steatotic liver disease(MASLD),while maintaining a significant decline in magnetic resonance imaging-based proton density fat fraction(MRI-PDFF)(≥30%decline relative to baseline)without worsening fibrosis results in improved histological severity and prognosis.However,the factors associated with the loss of sustained responses to treatment remain unclear,and we aim to identify them.Methods:Consecutive treatment-naïve MASLD patients between January 2015 and February 2022,with follow-up until April 2023,were included in this prospective cohort study.LFC quantified by MRI-PDFF and liver stiffness measurements(LSM)determined by two-dimensional shear wave elastography(2D-SWE)were evaluated at weeks 0,24 and 48.MRI-PDFF response was defined as a≥30%relative decline in PDFF values,and LSM response was defined as a≥1 stage decline from baseline.Results:A total of 602 MASLD patients were enrolled.Of the 303 patients with a 24-week MRI-PDFF response and complete follow-up of 48 weeks,the rate of loss of MRI-PDFF response was 29.4%,and multivariable logistic regression analyses showed that 24-week insulin resistance(IR),still regular exercise and caloric restriction after 24 weeks,and the relative decline in LFC were risk factors for loss of MRI-PDFF response.Loss of LSM response at 48 weeks occurred in 15.9%of patients,and multivariable analysis confirmed 24-week serum total bile acid(TBA)levels and the relative decline in TBA from baseline as independent predictors.No significant association was found at 48 weeks between loss of MRI-PDFF response and loss of LSM response.Conclusions:MASLD patients with IR and high TBA levels are at higher risks of subsequent diminished sustained improvements of steatosis and fibrosis,respectively. 展开更多
关键词 Metabolic dysfunction-associated steatotic liver disease(MASLD) loss of response magnetic resonance imaging-based proton density fat fraction response(MRI-PDFF response) liver stiffness measurements response(LSM response)
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Generating strongly basic sites on magnetic nano-stirring bars:Multifunctional integrated catalysts for transesterification reaction
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作者 Chen Gu Tian-Tian Li +4 位作者 Peng Tan Song-Song Peng Yao Jiang Xiao-Qin Liu Lin-Bing Sun 《Science China Materials》 SCIE EI CAS CSCD 2022年第10期2721-2728,共8页
Mass transfer and catalyst recovery are two crucial issues in solid base catalysis,while the cumbersome operation steps and the associated time and energy penalties are still inevitable for conventional catalysts.Achi... Mass transfer and catalyst recovery are two crucial issues in solid base catalysis,while the cumbersome operation steps and the associated time and energy penalties are still inevitable for conventional catalysts.Achieving the technical upgrades through catalyst design is desirable but challenging because of the difficulty in satisfying diverse demands of different steps.In this work,a magnetically responsive solid base catalyst with the rod-like nanostructure was developed.The rod-like solid base catalysts are composed of Fe_(3)O_(4) cores,silica shells and calcium oxide active sites.The functions of magnetic recovery and stirring were integrated into the catalyst,which applies in both the general catalytic processes and microchannel reactors given their nanoscales.When applied to the synthesis of dimethyl carbonate by onestep transesterification of methanol and ethylene carbonate,an apparent enhancement on turnover frequency value(33.1 h^(−1))was observed for nano-stirring compared with that tested without stirring(12.1 h^(−1))within 30 min.The present catalysts may open up new avenues in the development of advanced solid base catalysts. 展开更多
关键词 magnetic responsiveness nano-stirring bars dimethyl carbonate solid base catalyst
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Magnetic responsive polymer nanofiber composites for easy collecting chemical spills
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作者 Hongyu Meng Jiping Wan +4 位作者 Jingyun Jing Dayin Sun Bingyin Jiang Fuxin Liang Zhenzhong Yang 《Chinese Chemical Letters》 SCIE CAS CSCD 2020年第1期253-255,共3页
We describe a simple method to prepare magnetic responsive polydivinylbenzene(PDVB)nanofiber composites by precipitated cationic living polymerization in the present of oleic acid capped Fe3O4 nanoparticles(NPs).The F... We describe a simple method to prepare magnetic responsive polydivinylbenzene(PDVB)nanofiber composites by precipitated cationic living polymerization in the present of oleic acid capped Fe3O4 nanoparticles(NPs).The Fe3O4 NPs are encapsulated with the PDVB forming dendrites,from which thin nanofibers are grown in the tip-growth mode.The thin nanofibers are interwoven with the thick nanofibers forming robust composite network.The composites are magnetic responsive and highly efficient to gel almost all chemicals.Separation of the gelled chemicals from water becomes easier with a magnet.The performance is promising for magnetic collection of chemical spills. 展开更多
关键词 PDVB nanofibers Fe3O4 nanoparticles Cationic living polymerization Collecting spills magnetic response
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Synthesis of Mn Fe_2O_4/cellulose aerogel nanocomposite with strong magnetic responsiveness
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作者 Jian LI Yue JIAO Caichao WAN 《Frontiers of Agricultural Science and Engineering》 2017年第1期116-120,共5页
Cellulose aerogel, with abundant three-dimensional architecture, has been considered as a class of ideal eco-friendly matrix materials to encapsulate various nanoparticles for synthesis of miscellaneous functional mat... Cellulose aerogel, with abundant three-dimensional architecture, has been considered as a class of ideal eco-friendly matrix materials to encapsulate various nanoparticles for synthesis of miscellaneous functional materials. In the present paper, hexagonal single-crystalline MnFe_2O_4 was fabricated and inserted into the cellulose aerogel using an in situ chemical precipitation method. The as-prepared MnFe_2O_4 nanoparticles were well dispersed and immobilized in the micro/nanoscale pore structure of the aerogel, and exhibited superparamagnetic behavior. In addition, the nanocomposite was easily actuated under the effect of an external magnetic field, revealing its strong magnetic responsiveness.Combined with the advantages of environmental benefits,facile synthesis method, strong magnetic responsiveness,and unique structural feature, this class of MnFe_2O_4/cellulose aerogel nanocomposite has possible uses for applications such as magnetically actuated adsorbents. 展开更多
关键词 cellulose aerogel MnFe2O4 magnetic responsiveness NANOCOMPOSITE
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Nonlocal response of electric and magnetic modes in a silver cuboid dimer
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作者 曾翔昊 王勇 +1 位作者 鲁拥华 王沛 《Chinese Optics Letters》 SCIE EI CAS CSCD 2016年第7期94-97,共4页
The nonlocal effect on the spontaneous emission of a silver cuboid dimer is investigated using a local analog model. Magnetic as well as electric dipole excitations are introduced to excite different gap modes. The no... The nonlocal effect on the spontaneous emission of a silver cuboid dimer is investigated using a local analog model. Magnetic as well as electric dipole excitations are introduced to excite different gap modes. The nonlocal response of electric and magnetic modes on various parameters of gap (width and refractive index) are investigated. Unidirectional radiation is achieved by the interaction between electric and magnetic modes in both local and nonlocal models. Compared to local simulations, the resonant wavelength is blue shifted and the spontaneous emission enhancement is weakened in the nonlocal model. The relative shifts of the resonant wavelengths get larger in smaller gaps with a higher refractive index. 展开更多
关键词 Nonlocal response of electric and magnetic modes in a silver cuboid dimer mode
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Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic self-cleaning and antifouling functionalities 被引量:1
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作者 Nee Nee Tan Qi Hwa Ng +3 位作者 Siti Kartini Enche Ab Rahim Abdul Latif Ahmad Peng Yong Hoo Thiam Leng Chew 《Frontiers of Chemical Science and Engineering》 SCIE EI CSCD 2023年第10期1450-1459,共10页
Membrane technology is ideal for removing aqueous humic acid,but humic acid deposits cause membrane fouling,a significant challenge that limits its application.Herein,this work proposed an alternative approach to the ... Membrane technology is ideal for removing aqueous humic acid,but humic acid deposits cause membrane fouling,a significant challenge that limits its application.Herein,this work proposed an alternative approach to the controllably magnetically induced magnetohybrid polyoxometalate(magneto-HPOM)nanocomposite migration toward the polyethersulfone(PES)membrane surface under a magnetic field to enhance the self-cleaning and antifouling functionalities of the membrane.Before incorporating magneto-HPOM nanocomposite into the PES casting solution,functionalized magnetite nanoparticles(F-MNP)were first coated with HPOM photocatalyst to fabricate a magneto-HPOM-PES membrane.It was shown that the apparent impacts of this novel magneto-HPOM-PES membrane on the hydrophilic behavior and photocatalytic properties of the magneto-HPOM nanocomposite improve the hydrophilicity,separation performance,antifouling and self-cleaning properties of the membrane compared with neat PES membrane.Furthermore,after exposure to ultraviolet light,the magneto-HPOM-PES membrane can be recovered after three cycles with a flux recovery ratio of 107.95%,100.06%,and 95.56%,which is attributed to the temporal super hydrophilicity effect.Meanwhile,the magneto-HPOM-PES membrane could efficiently maintain 100%humic acid rejection for the first and second cycles and 99.81%for the third cycle.This study revealed a novel approach to fabricating membranes with high antifouling and self-cleaning properties for water treatment. 展开更多
关键词 magneto-hybrid polyoxometalate nanocomposite composite membrane ANTIFOULING SELF-CLEANING magnetic and photocatalytic responsiveness
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Versatile nanocomposite augments high-intensity focused ultrasound for high-efficacy sonodynamic therapy of glioma 被引量:1
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作者 Yingyan Zheng Dejun She +6 位作者 Huihui Huang Lin Lin Sunhui Chen Yiping Lu Li Liu Zhiqing Pang Bo Yin 《Nano Research》 SCIE EI CSCD 2022年第10期9082-9091,共10页
High-intensity focused ultrasound(HIFU),with inherent advantages of improved ultrasonic depth and low off-target damage,holds the promising capability for glioma treatment,but the relatively long therapeutic time and ... High-intensity focused ultrasound(HIFU),with inherent advantages of improved ultrasonic depth and low off-target damage,holds the promising capability for glioma treatment,but the relatively long therapeutic time and potential physical complications may hamper its clinical application.Herein,a bovine serum albumin(BSA)-based nanoplatform with in situ growth of MnO_(2) was synthesized,and Protoporphyrin IX(PpIX)was further anchored to obtain a versatile PpIX@MnO_(2)@BSA nanoplatform(denoted as BMP).By employing HIFU as the exogenous irradiation source,a high-efficacy sonodynamic therapy(SDT)is developed,in which the excited BMP enables the production of tumoricidal reactive oxygen species(ROS).The inherent tumor microenvironment(TME)-responsive property of MnO_(2) endows BMP with specific T1-weighted magnetic resonance imaging(MRI)by releasing Mn2+,and the simultaneously generated O_(2) facilitates hypoxia alleviation as well as ^(1)O_(2) generation.Compared with HIFU therapy alone,suppression of glioma growth and improved survival benefits are achieved through the designed TMEresponsive nanocomposite under HIFU exposure.The high-efficacy SDT strategy combining BMP and HIFU demonstrated favorable TME-responsive T1-weighted MRI,hypoxic environment alleviation,and anti-tumor capability,providing a perspective paradigm for MRI-guided glioma treatment. 展开更多
关键词 GLIOMA sonodynamic therapy high intensity focused ultrasound tumor microenvironment responsive magnetic resonance imaging
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Nonlocal Free Energy of a Spatially Inhomogeneous Superconductor
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作者 K.V.Grigorishin B.I.Lev 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第5期879-892,共14页
The microscopic approach is developed for obtaining of the free energy of a superconductor based on direct calculation of the vacuum amplitude.The free energy functional of the spatially inhomogeneous superconductor i... The microscopic approach is developed for obtaining of the free energy of a superconductor based on direct calculation of the vacuum amplitude.The free energy functional of the spatially inhomogeneous superconductor in a magnetic field is obtained with help of the developed approach.The obtained functional is generalization of GinzburgLandau functionals for any temperature,for arbitrary spatial variations of the order parameter and for the nonlocality of a magnetic response and the order parameter.Moreover,the nonlocality of the magnetic response is the consequence of order parameter's nonlocality.The extremals of this functional are considered in the explicit form in the low-and high-temperature limit at the condition of slowness of spatial variations of the order parameter. 展开更多
关键词 uncoupling of correlations vacuum amplitude order parameter magnetic response NONLOCALITY
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Dipole-fiber system: from single photon source to metadevices
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作者 Shaghik ATAKARAMIANS Tanya M. MONRO Shahraam AFSHAR V. 《Frontiers of Optoelectronics》 EI CSCD 2018年第1期30-36,共7页
Radiation of an electric dipole(quantum emitter)in vicinity of optical structures still attracts great interest due to emerging of novel application and technological advances.Here we review our recent work on guide... Radiation of an electric dipole(quantum emitter)in vicinity of optical structures still attracts great interest due to emerging of novel application and technological advances.Here we review our recent work on guided and radiation modes of electric dipole and optical fiber system and its applications from single photon source to metadevices.We demonstrate that the relative position and orientation of the dipole and the core diameter of the optical fiber are the two key defining factors of the coupled system application.We demonstrate that such a coupled system has a vast span of applications in nanophotonics;a single photon source,a high-quality factor sensor and the building block of metadevices. 展开更多
关键词 dipole source optical fibers single photon source whispering gallery modes electric and magnetic response
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Recent progress on smart hydrogels for biomedicine and bioelectronics
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作者 Fa Zou Jiefang Xu +2 位作者 Le Yuan Qinyong Zhang Lili Jiang 《Biosurface and Biotribology》 EI 2022年第3期212-224,共13页
The increasing development of biomedicine and bioelectronics has highlighted the requirement for smart materials that can respond to changes in physical and chemical properties under external environments,such as magn... The increasing development of biomedicine and bioelectronics has highlighted the requirement for smart materials that can respond to changes in physical and chemical properties under external environments,such as magnetic fields,electric fields,and temperature.Accordingly,hydrogels have been widely evaluated as promising candidates for smart materials owing to their intriguing structures comprising a cross‐linked network of polymer chains with interstitial spaces filled with solvent water.This feature endows hydrogels with soft and wet characteristics,which not only induce high tissue affinity but also allow the introduction of environmentally responsive nanoparticles to release specific smart properties.Herein,we reviewed novel smart hydrogels that can be applied in biomedicine and bioelectronics,and highlighted and discussed existing challenges in current technologies and research. 展开更多
关键词 BIOELECTRONICS BIOMEDICINE electrical response magnetic response smart hydrogel thermo‐responsive
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