期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到62篇文章
< 1 2 … 4 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Synergistically enhanced thermal and mechanical properties of CNT-modified docosane@SiO2nanocapsules for advanced thermal energy storage 认领 引用
1
作者 Yudan Li Xiaoqi Zhong +2 位作者 Zhengguo Zhang Ziye Ling Xiaoming Fang 《Green Energy & Environment》 SCIE EI CAS CSCD 2026年第4期1108-1121,共14页
This study presents a novel strategy for synthesizing carbon nanotube(CNT)-modified n-docosane@SiO2(C22@SiO2)phase change nanocapsules with simultaneously enhanced latent heat,thermal conductivity,and mechanical... This study presents a novel strategy for synthesizing carbon nanotube(CNT)-modified n-docosane@SiO2(C22@SiO2)phase change nanocapsules with simultaneously enhanced latent heat,thermal conductivity,and mechanical strength.A critical pretreatment step involving the ultrasonic dispersion of CNTs in tetraethyl orthosilicate(TEOS)for≥3 h was essential,enabling effective adsorption of TEOS onto CNT surfaces and thereby facilitating their co-encapsulation with C22 within SiO2shells via interfacial polycondensation.Systematic optimization revealed that a 3-h dispersion was essential for forming structurally intact capsules,achieving an encapsulation efficiency of 80.2%and a melting enthalpy(ΔHm)of 188.5 J g-1.The optimal CNT loading of 0.05 g maximized core crystallinity(66.75%)and latent heat(ΔHm:188.5 J g-1vs.168.3 J g-1for unmodified capsules),while reducing the melting point by 2.4℃ due to molecular interactions between CNTs and C22,as confirmed by solid-state1H NMR.The optimized capsules(denoted as P-CNT-0.05)exhibited a 36.8%higher thermal conductivity(0.52 W m-1K-1),a 338.9%increase in Young’s modulus(3964 MPa),near-zero leakage(0.88%mass loss after heating),and stable performance over 100 thermal cycles.This work provides a scalable route to multifunctional phase change nanocapsules with triply-enhanced energy storage capacity,heat transfer efficiency,and mechanical durability,demonstrating great potential for advanced thermal management applications. 展开更多
关键词 Phase change materials Nanocapsules Carbon nanotubes Thermal energy storage Core-shell structure Interfacial polymerization Thermal conductivity enhancement
暂未订购 下载PDF
Signal cascade amplification of streptavidin-biotin-modified immunofluorescence nanocapsules for ultrasensitive detection of glial fibrillary acidic protein 认领 引用 被引量：1
2
作者 Bo Liu Shuaiqiang Shao +4 位作者 Junjie Cai Zijian Zhang Feng Tian Kun Yang Fan Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第3期316-321,共6页
Glial fibrillary acidic protein(GFAP)is one of the discriminative biomarkers for diagnosing traumatic brain injury(TBI),and accurate determination of GFAP is clinically significant.In this study,a novel fluorescence i... Glial fibrillary acidic protein(GFAP)is one of the discriminative biomarkers for diagnosing traumatic brain injury(TBI),and accurate determination of GFAP is clinically significant.In this study,a novel fluorescence immunoassay system was designed.We encapsulated carbon dots with a high fluorescence quantum yield(QY=92.5%)inside silicon nanocapsules to serve as fluorescent markers.These markers were then integrated with the streptavidin(SA)-biotin biomagnification system and immunomagnetic separation technology for the sensitive detection of GFAP.Based on the signal cascade amplification effect of the silicon nanocapsules and SA-biotin,the fluorescence signal of the SA-biotin-modified immunofluorescence nanocapsules increased 3.6-fold compared to the carbon dot-based immunoprobe.The fluorescence immunoassay system was constructed for GFAP using SA-biotin-modified immunocapsules as the sensing probe and immunomagnetic nanoparticles as the immunorecognition probe.The fluorescence immunoassay system can specifically and ultra-sensitively quantify GFAP in blood samples,with a detection range of 10 pg/mL–10 ng/mL and detection limits of 3.2 pg/mL(serum)and 3.6 pg/mL(plasma).Moreover,the fluorescence immunoassay system exhibited prominent recoveries of 99.4%–100.4%(phosphate buffered saline),96%–102.6%(serum),and 93.2%–110.2%(plasma),with favorable specificity and excellent stabilization.The novel fluorescence immunoassay system provides a new approach to the clinical analysis of GFAP and may serve as a potential tool for screening and diagnosing TBI. 展开更多
关键词 Carbon dots Nanocapsules Signal amplification Traumatic brain injury Fluorescence immunoassay system
暂未订购 下载PDF
Near-infrared light responsive upconversion-DNA nanocapsules for remote-controlled CRISPR-Cas9 genome editing 认领 引用
3
作者 Yuqing Liu Shiling Zhang +7 位作者 Kai Jiang Shiyue Ding Limei Xu Yingqi Liu Ting Wang Fenfen Zheng Weiwei Xiong Jun-Jie Zhu 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第5期663-667,共5页
As a renovator in the field of gene editing,CRISPR-Cas9 has demonstrated immense potential for advancing next-generation gene therapy owing to its simplicity and precision.However,this potential faces significant chal... As a renovator in the field of gene editing,CRISPR-Cas9 has demonstrated immense potential for advancing next-generation gene therapy owing to its simplicity and precision.However,this potential faces significant challenges primarily stemming from the difficulty in efficiently delivering large-sized genome editing system(including Cas9 protein and sgRNA)into targeted cells and spatiotemporally controlling their activity in vitro and in vivo.Therefore,the development of CRISPR/Cas9 nanovectors that integrate high loading capacity,efficient encapsulation and spatiotemporally-controlled release is highly desirable.Herein,we have engineered a near-infrared(NIR)light-activated upconversion-DNA nanocapsule for the remote control of CRISPR-Cas9 genome editing.The light-responsive upconversion-DNA nanocapsules consist of macroporous silica(mSiO2)coated upconversion nanoparticles(UCNPs)and photocleavable onitrobenzyl-phosphate-modified DNA shells.The UCNPs act as a“nanotransducers”to convert NIR light(980 nm)into local ultraviolet light,thereby facilitating the cleavage of photosensitive DNA nanocapsules and enabling on-demand release of CRISPR-Cas9 encapsuled in the macroporous silica.Furthermore,by formulating a sgRNA targeted to a tumor gene(polo-like kinase-1,PLK-1),the CRISPR-Cas9 loaded UCNPDNA nanocapsules(crUCNP-DNA nanocapsules)have effectively suppressed the proliferation of tumor cells through NIR light-activated gene editing both in vitro and in vivo.Overall,this UCNP-DNA nanocapsule holds tremendous potential for CRISPR-Cas9 delivery and remote-controlled gene editing in deep tissues,as well as the treatment of diverse diseases. 展开更多
关键词 UCNPs CRISPR/Cas9 Gene editing DNA nanocapsules Near-infrared light
暂未订购 下载PDF
Sustained‑Release Nanocapsules Enable Long‑Lasting Stabilization of Li Anode for Practical Li‑Metal Batteries 认领 引用 被引量：13
4
作者 Qianqian Liu Yifei Xu +3 位作者 Jianghao Wang Bo Zhao Zijian Li Hao Bin Wu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2020年第12期239-250,共12页
A robust solid-electrolyte interphase(SEI)enabled by electrolyte additive is a promising approach to stabilize Li anode and improve Li cycling efficiency.However,the self-sacrificial nature of SEI forming additives li... A robust solid-electrolyte interphase(SEI)enabled by electrolyte additive is a promising approach to stabilize Li anode and improve Li cycling efficiency.However,the self-sacrificial nature of SEI forming additives limits their capability to stabilize Li anode for long-term cycling.Herein,we demonstrate nanocapsules made from metal–organic frameworks for sustained release of LiNO3 as surface passivation additive in commercial carbonate-based electrolyte.The nanocapsules can offer over 10 times more LiNO3 than the solubility of LiNO3.Continuous supply of LiNO3 by nanocapsules forms a nitride-rich SEI layer on Li anode and persistently remedies SEI during prolonged cycling.As a result,lifespan of thin Li anode in 50μm,which experiences drastic volume change and repeated SEI formation during cycling,has been notably improved.By pairing with an industry-level thick LiCoO2 cathode,practical Li-metal full cell demonstrates a remarkable capacity retention of 90%after 240 cycles,in contrast to fast capacity drop after 60 cycles in LiNO3 saturated electrolyte. 展开更多
关键词 Metal–organic frameworks LiNO3 Nanocapsules Lithium-metal anode Lithium-metal batteries
暂未订购 下载PDF
Interconnected carbon nanocapsules with high N/S co-doping as stable and high-capacity potassium-ion battery anode 认领 引用 被引量：10
5
作者 Honghui Bi Xiaojun He +3 位作者 Lei Yang Hongqiang Li Biyu Jin Jieshan Qiu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第3期195-204,I0007,共10页
Carbonaceous materials have drawn much attention in potassium-ion batteries (PIBs) due to their low price and superior physicochemical properties. However, the application of carbonaceous materials in PIB anodes is hi... Carbonaceous materials have drawn much attention in potassium-ion batteries (PIBs) due to their low price and superior physicochemical properties. However, the application of carbonaceous materials in PIB anodes is hindered by sluggish kinetics and large volume expansion. Herein, N/S co-doped carbon nanocapsule (NSCN) is constructed for superior K+ storage. The NSCN possesses 3D nanocapsule framework with abundant meso/macropores, which guarantees structural robustness and accelerates ions/electrons transportation. The high-level N/S co-doping in carbon matrix not only generates ample defects and active sites for K+ adsorption, but also expands interlayer distance for facile K+ intercalation/deintercalation. As a result, the NSCN electrode delivers a high reversible capacity (408 mAh g−1 at 0.05 A g−1), outstanding rate capability (149 mAh g−1 at 5 A g−1) and favorable cycle stability (150m Ah g−1 at 2 A g−1 after 2000 cycles). Ex situ TEM, Raman and XPS measurements demonstrate the excellent stability and reversibility of NSCN electrode during potassiation/depotassiation process. This work provides inspiration for the optimization of energy storage materials by structure and doping engineering. 展开更多
关键词 3D Carbon nanocapsules N/S co-doping Carbon anode Potassium-ion battery
暂未订购 下载PDF
Magnetic and Microwave-absorption Properties of Graphite-coated(Fe,Ni)Nanocapsules 认领 引用 被引量：9
6
作者 Zhigao Xie Dianyu Geng +2 位作者 Xianguo Liu Song Ma Zhidong Zhang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2011年第7期607-614,共8页
The structure,magnetic and microwave-absorption properties of graphite-coated(Fe,Ni)alloy nanocapsules,synthesized by the arc-discharge method,have been studied.High-resolution transmission electron microscopy shows t... The structure,magnetic and microwave-absorption properties of graphite-coated(Fe,Ni)alloy nanocapsules,synthesized by the arc-discharge method,have been studied.High-resolution transmission electron microscopy shows that the nanocapsules have a core/shell structure with(Fe,Ni)alloy as the core and graphite as the shell.All(Fe,Ni)alloy nanocapsules/paraffin composites show good microwave-absorption properties.The optimal reflection loss(RL)was found for(Fe70Ni30)/C nanocapsules/paraffin composites,being-47.84 dB at 14.6 GHz for an absorber thickness of 1.99 mm,while the RL values exceeding-10 dB were found in the 12.4–17.4 GHz range,which almost covers the Ku band(12.4–18 GHz).For(Fe70Ni30)/C nanocapsules/paraffin composites,RL values can exceed-10 dB in the 11.4–18 GHz range with an absorber thickness of 1.91 mm,which cover the whole Ku band. 展开更多
关键词 Magnetic Nanocapsules Microwave absorption
暂未订购 下载PDF
Versatile metal graphitic nanocapsules for SERS bioanalysis 认领 引用 被引量：2
7
作者 Shengkai Li Jiamei Xu +3 位作者 Shen Wang Xin Xia Long Chen Zhuo Chen 《Chinese Chemical Letters》 SCIE CAS CSCD 2019年第9期1581-1592,共12页
The novel graphitic nanomaterial of metal graphitic nanocapsules(MGNs) with superior stability, unique optical properties and biocompatibility possess great potential in biomedical and bioanalytical applications. The ... The novel graphitic nanomaterial of metal graphitic nanocapsules(MGNs) with superior stability, unique optical properties and biocompatibility possess great potential in biomedical and bioanalytical applications. The graphitic shell can quench the background fluorescence interference from external environments via a fluorescence resonance energy transfer(FRET) process and even avoid unnecessary reactions catalyzed by inner metal core. The graphitic shell with several characteristic Raman bands itself can act as Raman signal probe or internal standard(IS), especially the 2D-band within the cellular Raman-silent region helps to reduce the interference signals from external conditions. The present context attempts to give a comprehensive overview about the preparation and unique properties of MGNs as well as their applications in SERS biodetection and bioimaging. 展开更多
关键词 Versatile Metal graphitic nanocapsules SERS Biodetection Bioimaging
暂未订购 下载PDF
Toward Artificial Peptide Nanocapsules 认领 引用 被引量：11
8
作者 Yuan Wang Bing Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第10期240-243,共4页
HIGHLIGHTS The formation of peptide nanocapsules is facilitated by a gradient interface,where the differential solvent concentration drives the peptides to preferentially localize and assemble.The peptide nanocapsules... HIGHLIGHTS The formation of peptide nanocapsules is facilitated by a gradient interface,where the differential solvent concentration drives the peptides to preferentially localize and assemble.The peptide nanocapsules,characterized by their hollow structures,demonstrated potential as carriers for targeted drug delivery.1 Introduction Peptide nanocapsules are a type of nanoscale delivery system that encapsulates active substances within a shell composed of peptides,leveraging the unique properties of peptides such as biocompatibility and biodegradability[1].Historically,the development of peptide nanocapsules was inspired primordially by the natural biological processes. 展开更多
关键词 Peptide nanocapsules Self-assembly Drug delivery Nanomedicine
暂未订购 下载PDF
Synthesis and characterization of novel biocompatible nanocapsules encapsulated lily fragrance 认领 引用 被引量：2
9
作者 Weihong Ji Tianlu Zhang +3 位作者 Zhiguo Lu Jie Shen Zuobing Xiao Xin Zhang 《Chinese Chemical Letters》 SCIE CAS CSCD 2019年第3期739-742,共4页
Fragranced products are wildly used in our daily life. However, their storage, application and quality are severely influenced by their strong volatility. In order to overcome these natural defects of fragrances,fragr... Fragranced products are wildly used in our daily life. However, their storage, application and quality are severely influenced by their strong volatility. In order to overcome these natural defects of fragrances,fragrance encapsulation approaches have been developed recently. In this study, a mild, simple and lowcost method of fragrance encapsulation was invented. Liposomes composed of soya lecithin/DSPEPEG2000/PLGA were prepared to encapsulate lily fragrance(LF). And these nanosized fragrance products was named LF-NPs. The hydrodynamic diameters of LF-NPs were approximately 100 nm and their encapsulation efficiency was up to 21.9%. Besides, LF-NPs could also prolong the release time of lily fragrance. Finally, the cytotoxicity tests indicated that LF-NPs offered biocompatibility. Therefore, LF-NPs were expected to have application prospects. 展开更多
关键词 Nanocapsules Encapsulation Fragrance Biocompatibility Simple operation
暂未订购 下载PDF
Facile synthesis of chromium chloride/poly(methyl methacrylate) core/shell nanocapsules by inverse miniemulsion evaporation method and application as delayed crosslinker in secondary oil recovery 认领 引用 被引量：1
10
作者 Jing-Yang Pu Keith P.Johnston +4 位作者 Ping-Keng Wu Muaaz Ahmad Ming-Liang Luo Na Zhang Ju-Tao He 《Petroleum Science》 SCIE EI CAS CSCD 2023年第1期396-406,共11页
Cr(III)ehydrolyzed polyacrylamide(HPAM)gels have been extensively studied as a promising strategy controlling waste water production for mature oilfields.However,the gelation time of the current technologies is not lo... Cr(III)ehydrolyzed polyacrylamide(HPAM)gels have been extensively studied as a promising strategy controlling waste water production for mature oilfields.However,the gelation time of the current technologies is not long enough for in-depth placement.In this study,we report a novel synthesis method to obtain chromium chloride/poly(methyl methacrylate)(PMMA)nanocapsules which can significantly delay the gelation of HPAM through encapsulating the chromium chloride crosslinker.The chromium chloride-loaded nanocapsules(CreNC)are prepared via a facile inverse miniemulsion evaporation method during which the hydrophobic PMMA polymers,pre-dispersed in an organic solvent,were carefully controlled to precipitate onto stable aqueous miniemulsion droplets.The stable aqueous nanodroplets(W)containing Cr(III)are dispersed in a mixture of organic solvent(O1)with PMMA and nonsolvent medium(O2)to prepare an inverse miniemulsion.With the evaporation of the O1,PMMA forms CreNCs around the aqueous droplets.The CreNCs are readily transferred into water from the organic nonsolvent phase.The CreNCs exhibit the tunable size(358-983 nm),Cr loading(7.1%-19.1%),and Cr entrapment efficiency(11.7%-80.2%),with tunable zeta potentials in different PVA solutions.The CreNCs can delay release of Cr(III)and prolong the gelation time of HPAM up to 27 days. 展开更多
关键词 Nanocapsules Inverse miniemulsion evaporation Chromium chloride crosslinker HPAM gelation Secondary oil recovery
暂未订购 下载PDF
Study on the preparation of Pt nanocapsules 认领 引用 被引量：1
11
作者 Yi-fan Zhang Zhen Ji +3 位作者 Ke Chen Bo-wen Liu Cheng-chang Jia Shan-wu Yang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2017年第1期109-114,共6页
Ag@Pt core-shell nanoparticles（Ag@Pt NPs） were prepared by a co-reduction method. Pt nanocapsules with diameters of less than 10 nm were obtained by an electrochemical method. Cyclic voltammetry（CV） scanning was u... Ag@Pt core-shell nanoparticles（Ag@Pt NPs） were prepared by a co-reduction method. Pt nanocapsules with diameters of less than 10 nm were obtained by an electrochemical method. Cyclic voltammetry（CV） scanning was used to cavitate the Ag@Pt NPs, and the morphology, structure, and cavitation conditions were studied. The results indicate that the effective cavitation conditions to obtain Pt nanoparticles from Ag@Pt NPs are a scanning voltage of 0 to 0.8 V and continuous CV scanning over 2 h. This cavitation method is also applicable for the syntheses of Ir, Ru, and Ru-Pt nanocapsules. 展开更多
关键词 platinum nanocapsules cavitation preparation methods
暂未订购 下载PDF
The Role of Surfactant and Costabilizer in Controlling Size of Nanocapsules Containing TEGDMA in Miniemulsion 认领 引用 被引量：1
12
作者 GUO Jinxin PAN Qiuhua +4 位作者 HUANG Cui ZHAO Yanbing OUYANG Xiaobai HUO Yonghong DUAN Sansan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2009年第6期1004-1006,共3页
Nanocapsules with triethylene glycol dimethacrylate(TEGDMA)as core material and polyurethane as wall material used for self-healing bonding resin were prepared by interfacial polycondensation in miniemulsion.The influ... Nanocapsules with triethylene glycol dimethacrylate(TEGDMA)as core material and polyurethane as wall material used for self-healing bonding resin were prepared by interfacial polycondensation in miniemulsion.The influence of surfactant and costabilizer concentration on nanocapsules size and stability of nanocapsules was investigated.The size and its polydispersity of the nanocapsules were measured by light-scattering particle size analyzer.When the concentration of SDS were increased from 2.5wt%to 10wt%,the size decreases from 340.5 nm to 258.3 nm,PDI decreased from 0.210 to 0.111.As the concentration of HD increased,the size and PDI were both decreased,When reaching 10wt%,the size was 258.0 nm,PDI was 0.130.SDS and HD play important effect in synthesis of Nanocapsules containing TEGDMA.By changing the surfactant and costabilizer concentration it was possible to synthesize a wide variety of nanocapsules sizes.The performance and technical parameters of nanocapsules had been researched preliminarily,which built the solid foundation for the application to the self-repairing bonding resin. 展开更多
关键词 triethylene glycol dimethacrylate nanocapsules interfacial polycondensation miniemulsion
暂未订购 下载PDF
Structure and Magnetic Properties of Boron-oxide and Boron-nitride Coated Iron Nanocapsules 认领 引用 被引量：1
13
作者 W.S. Zhang J.G. Zheng +3 位作者 E. Briick P.Z. Si D.Y. Geng Z.D. Zhang 《Journal of Materials Science & Technology》 SCIE EI CAS 2010年第11期1051-1056,共6页
The boron-oxide coated iron nanocapsules have been prepared by arc-discharge in a mixture of diborane and nitrogen,and then the boron-nitride coated iron nanocapsules by a subsequent annealing under a nitrogen atmosph... The boron-oxide coated iron nanocapsules have been prepared by arc-discharge in a mixture of diborane and nitrogen,and then the boron-nitride coated iron nanocapsules by a subsequent annealing under a nitrogen atmosphere at 1100 ℃.After the arc-discharge,the boron-oxide coated iron nanocapsules form,which show an amorphous surface layer of B2O3 （and/or B） and a core of γ-Fe,α-Fe,FeB phases.After being annealed,part of the α-Fe phase transforms to the γ-Fe phase,and the FeB phase decomposes while the BN phase forms.The BN shell structure formed in the BN encapsulating iron nanocapsules is incomplete.Magnetic properties of the boron-oxide coated and the boron-nitride coated iron nanocapsules were compared and discussed in terms of the particles sizes,the phase components,and the surface structures. 展开更多
关键词 Arc discharge Nanocapsules Magnetic properties
暂未订购 下载PDF
Magnetic Nanocapsules 认领 引用 被引量：1
14
作者 Zhidong ZHANG 《Journal of Materials Science & Technology》 SCIE EI CAS 2007年第1期1-14,共14页
A brief review on recent advances in the area of the magnetic nanocapsules is given. The most applicable nanoencapsulation procedures are introduced, which include： （1） physical techniques such as arc-discharge, ev... A brief review on recent advances in the area of the magnetic nanocapsules is given. The most applicable nanoencapsulation procedures are introduced, which include： （1） physical techniques such as arc-discharge, evaporating, etc.; （2） chemical techniques such as chemical vapor deposition, solid-state reactions, etc. The structure and magnetic properties of various nanocapsules with different core/shell structures are studied in details, for possibly applications in magnetic recording, magnetic refrigerator, magnetic fluids, superconductors and medicine. 展开更多
关键词 Magnetic Nanocapsules
暂未订购 下载PDF
Enhanced antibacterial activity of cotton via silver nanocapsules deposited by atmospheric pressure plasma jet 认领 引用
15
作者 张潇漫 马晓萍 +4 位作者 李茂洋 季佩宇 黄天源 诸葛兰剑 吴雪梅 《Plasma Science and Technology》 SCIE EI CAS CSCD 2023年第3期130-137,共8页
In this work,the antibacterial activity of cotton containing silver nanocapsules prepared by atmospheric pressure plasma(APP)deposition is investigated.The nanocapsules consist of a shell and a silver nanoparticle(Ag ... In this work,the antibacterial activity of cotton containing silver nanocapsules prepared by atmospheric pressure plasma(APP)deposition is investigated.The nanocapsules consist of a shell and a silver nanoparticle(Ag NP)core,where the core is used to bring antibacterial activity,and the shell is utilized to suppress the potential toxicity of Ag NPs.The surface morphology and the elements of the samples are analyzed by scanning electron microscopy(SEM),energy dispersive x-ray and x-ray photoelectron spectroscopy(XPS).The SEM results show that the skin of the cotton fibers will fall off gradually after APP treatment over 3 min,and the XPS results show that the Ag content will rise to 1.6%after APP deposition for 10 min.Furthermore,the antimicrobial activity tests show that the reduction rates of Escherichia coli and Staphylococcus aureus can achieve 100%when the sample is treated for 10 min,which exhibits excellent antibacterial activity.In addition,the UV absorption properties of the cotton will also be correspondingly improved,which brings a broader application prospect for antibacterial cotton. 展开更多
关键词 atmospheric pressure plasma(APP) nanocapsules antimicrobial activity cotton
暂未订购 下载PDF
Synthesis and Characterization of Nanocapsules of α-Fe(NiCoAl) Solid-solution 认领 引用
16
作者 DianyuGENG J.C.Kim +3 位作者 C.J.Cho ChonglinCHEN XianguoZHAO ZidongZHANG 《Journal of Materials Science & Technology》 SCIE EI CAS 2005年第3期297-300,共4页
α-Fe(NiCoAl) solid-solution nanocapsules were prepared with pure powders of Fe, Ni, Co and Al by the plasma arc-discharging using a copper crucible. The shapes of the nanocapsules are in polyhedrons with the core/she... α-Fe(NiCoAl) solid-solution nanocapsules were prepared with pure powders of Fe, Ni, Co and Al by the plasma arc-discharging using a copper crucible. The shapes of the nanocapsules are in polyhedrons with the core/shell structure. The body centered cubic (BCC) phase is formed in the core. The size of the nanocapsules is in the range of 10-120 nm and the thickness of the shell is 4-11 nm. Saturation magnetization JS=150 Am2/kg and coercivity iHC=24.3 kA/m are achieved for the nanocapsules. 展开更多
关键词 Nanocapsules a-Fe solid solution Plasma arc discharge Magnetic properties
暂未订购 下载PDF
A new scale for optimized cryogenic magnetocaloric effect in ErAl_2@Al_2O_3 nanocapsules 认领 引用 被引量：1
17
作者 F.Wei S.Ma +6 位作者 L.Yang Y.Feng J.Z.Wang A.Hua X.G.Zhao D.Y.Geng Z.D.Zhang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2018年第5期848-854,共7页
The Er Al2@Al2O3 nanocapsules with Er Al2core and Al2O3 shell were synthesized by modified arc-charge technique.The typical core-shell structure of the nanocapsules was confirmed by high resolution transmission electr... The Er Al2@Al2O3 nanocapsules with Er Al2core and Al2O3 shell were synthesized by modified arc-charge technique.The typical core-shell structure of the nanocapsules was confirmed by high resolution transmission electron microscopy and X-ray photoelectron spectroscopy.Transmission electron microscopy analysis shows the irregular sphere of the nanocapules with an average diameter of 26 nm.Magnetic investigation revealed the Curie temperature of Er Al2@Al2O3 nanocapsules at 20 K and the typical superparamagnetic behavior between blocking temperature and Curie temperature.Based on the blocking temperature and average diameter,the magnetocrystalline anisotropy constant of Er Al2@Al2O3nanocapsules was estimated to illustrate the magnetic contribution to the-SM.The large-SMof 14.25 J/（kg K）was obtained under 50 k Oe at 5 K.A vital parameter β was introduced in the present work to scale the optimized magnetic characteristics and the optimized mechanism was discussed in detail according to classical superparamagnetic theory.The results demonstrate that the optimal-SMwill be obtained when the magnetic parameter β is close to the theoretical coefficient. 展开更多
关键词 Nanocapsules Magnetocaloric effect Superparamagnetic property Cryogenic refrigeration
暂未订购 下载PDF
Microwave Absorption of Crystalline Fe/MnO@C Nanocapsules Embedded in Amorphous Carbon 认领 引用 被引量：32
18
作者 Gaihua He Yuping Duan Huifang Pang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2020年第4期152-167,共16页
Crystalline Fe/MnO@C core–shell nanocapsules inlaid in porous amorphous carbon matrix(FMCA)was synthesized successfully with a novel confinement strategy.The heterogeneous Fe/MnO nanocrystals are with approximate sin... Crystalline Fe/MnO@C core–shell nanocapsules inlaid in porous amorphous carbon matrix(FMCA)was synthesized successfully with a novel confinement strategy.The heterogeneous Fe/MnO nanocrystals are with approximate single-domain size which gives rise to natural resonance in 2–18 GHz.The addition of MnO2 confines degree of graphitization catalyzed by iron and contributes to the formation of amorphous carbon.The heterogeneous materials composed of crystalline–amorphous structures disperse evenly and its density is significantly reduced on account of porous properties.Meanwhile,adjustable dielectric loss is achieved by interrupting Fe core aggregation and stacking graphene conductive network.The dielectric loss synergistically with magnetic loss endows the FMCA enhanced absorption.The optimal reflection loss(RL)is up to−45 dB,and the effective bandwidth(RL<−10 dB)is 5.0 GHz with 2.0 mm thickness.The proposed confinement strategy not only lays the foundation for designing high-performance microwave absorber,but also offers a general duty synthesis method for heterogeneous crystalline–amorphous composites with tunable composition in other fields. 展开更多
关键词 Crystalline nanocapsule Amorphous carbon Core–shell structure Interfacial polarization Microwave absorption
暂未订购 下载PDF
Bio-assembled smart nanocapsules for targeted delivery of KRAS shRNA and cancer cell bioimage 认领 引用
19
作者 Maonan Wang Zengchao Guo +7 位作者 Jiayu Zeng Liu Liu Yihan Wang Jinpeng Wang Hongbing Lu Haijun Zhang Hui Jiang Xuemei Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第1期270-273,共4页
The five-year survival rate for pancreatic cancer is less than 5%. However, the current clinical multimodal therapy combined with first-line chemotherapy drugs only increases the patient’s median survival from 5.0 mo... The five-year survival rate for pancreatic cancer is less than 5%. However, the current clinical multimodal therapy combined with first-line chemotherapy drugs only increases the patient’s median survival from 5.0 months to 7.2 months. Consequently, a new strategy of cancer treatments is urgently needed to overcome this high-fatality disease. Through a series of biometric analyses, we found that KRAS is highly expressed in the tumor of pancreatic cancer patients, and this high expression is closely related to the poor prognosis of patients. It shows that inhibiting the expression of KRAS has great potential in gene therapy for pancreatic cancer. Given those above, we have exploited the possibility of targeted delivery of KRAS shRNA with the intelligent and bio-responsive nanomedicine to detect the special oxidative stress microenvironment of cancer cells and realize efficient cancer theranostics. Our observations demonstrate that by designing the smart self-assembled nanocapsules of melanin with fluorescent nanoclusters we can readily achieve the bio-recognition and bioimaging of cancer cells in biological solution or serum.The self-assembled nanocapsules can make a significant bio-response to the oxidative stress microenvironment of cancer cells and generate fluorescent zinc oxide Nanoclusters in situ for targeted cell bioimaging. Moreover, it can also readily facilitate cancer cell suppression through the targeted delivery of KRAS shRNA and low-temperature hyperthermia. This raises the possibility to provide a promising theranostics platform and self-assembled nanomedicine for targeted cancer diagnostics and treatments through special oxidative stress-responsive effects of cancer cells. 展开更多
关键词 Smart bio-responsive nanocapsules Intelligent nanomedicine shRNA KRAS Fluorescent bioimaging Oxidative stress response
暂未订购 下载PDF
Gas-blasting nanocapsules to accelerate carboplatin lysosome release and nucleus delivery for prostate cancer treatment 认领 引用 被引量：1
20
作者 Shunli Fu Shuang Liang +6 位作者 Dandan Jiang Rui Yang Zipeng Zhang Lili Chang Xinke Zhang Yongjun Liu Na Zhang 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2021年第2期192-202,共11页
To improve therapeutic effect and reduce severely side effects of carboplatin(CBP),the gas-generating nanocapsules were developed to accelerate CBP lysosome release and nucleus delivery.CBP/SB-NC was prepared by co-lo... To improve therapeutic effect and reduce severely side effects of carboplatin(CBP),the gas-generating nanocapsules were developed to accelerate CBP lysosome release and nucleus delivery.CBP/SB-NC was prepared by co-loading CBP and NaHCO 3(SB)in nanocapsules using w/o/w emulsification solvent evaporation.They exhibited vesicle-like spherical morphology,uniform particle size and negative zeta potential.Reaching the tumor site with a relatively high concentration is the first step for CBP delivery and the results showed that CBP/SB-NC could effectively increase drug accumulation at tumor site.After that,the drug delivery carriers need to be internalized into tumor cells and the in vitro cellular uptake ability results showed CBP/SB-NC could be internalized into RM-1 cells more efficient than CBP solution.After internalized by RM-1 cells,the gas-blasting release process was tested in acid environment.It was demonstrated that 5 mg/ml NaHCO 3 was optimal to achieve pH-responsive gas-blasting release.In vitro release results showed that CBP significantly rapid release in acid environment(pH 5.0)compared to neutral pH(pH 7.4)(P<0.05).Meanwhile,TEM and the change of the concentration of H+results exhibited that the explosion of CBP/SB 5-NC was more easily happened in lysosome acid environment(pH 5.0).The blasting release can accelerate CBP lysosome release to cytoplasm.Furthermore,the nucleus delivery results showed CBP/SB 5-NC can promote pH-triggered rapid nucleus delivery.And the results of Pt-DNA adduct assay showed that the binding efficiency between CBP and DNA of CBP/SB 5-NC was higher than CBP solution.At last,in vitro and in vivo anti-tumor efficacy proved that CBP/SB 5-NC could enhance anti-tumor activity for prostate cancer therapy.CBP/SB 5-NC also showed superior safety in vitro and in vivo by hemolysis assay and histopathological study.All of the results demonstrate that CBP/SB 5-NC would be an efficient gas-blasting release formulation to enhance prostate cancer treatment. 展开更多
关键词 Carboplatin Nanocapsule pH-responsive release Gas-blasting Prostate cancer
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 4 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈