共查询到20条相似文献,搜索用时 15 毫秒
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Ultrasensitive Surface‐Enhanced Raman Spectroscopy Detection Based on Amorphous Molybdenum Oxide Quantum Dots 下载免费PDF全文
Surface‐enhanced Raman spectroscopy (SERS) based on plasmonic semiconductive material has been proved to be an efficient tool to detect trace of substances, while the relatively weak plasmon resonance compared with noble metal materials restricts its practical application. Herein, for the first time a facile method to fabricate amorphous HxMoO3 quantum dots with tunable plasmon resonance is developed by a controlled oxidization route. The as‐prepared amorphous HxMoO3 quantum dots show tunable plasmon resonance in the region of visible and near‐infrared light. Moreover, the tunability induced by SC CO2 is analyzed by a molecule kinetic theory combined with a molecular thermodynamic model. More importantly, the ultrahigh enhancement factor of amorphous HxMoO3 quantum dots detecting on methyl blue can be up to 9.5 × 105 with expending the limit of detection to 10?9 m . Such a remarkable porperty can also be found in this HxMoO3‐based sensor with Rh6G and RhB as probe molecules, suggesting that the amorphous HxMoO3 quantum dot is an efficient candidate for SERS on molecule detection in high precision. 相似文献
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Nanoplasmonics: A Deformable Nanoplasmonic Membrane Reveals Universal Correlations Between Plasmon Resonance and Surface Enhanced Raman Scattering (Adv. Mater. 26/2014) 下载免费PDF全文
Minhee Kang Jae‐Jun Kim Young‐Jae Oh Sang‐Gil Park Ki‐Hun Jeong 《Advanced materials (Deerfield Beach, Fla.)》2014,26(26):4509-4509
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Silver‐Nanorod Bundles: A Hierarchically Ordered Array of Silver‐Nanorod Bundles for Surface‐Enhanced Raman Scattering Detection of Phenolic Pollutants (Adv. Mater. 24/2016) 下载免费PDF全文
Chuhong Zhu Guowen Meng Peng Zheng Qing Huang Zhongbo Li Xiaoye Hu Xiujuan Wang Zhulin Huang Fadi Li Nianqiang Wu 《Advanced materials (Deerfield Beach, Fla.)》2016,28(24):4870-4870
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Plasmonic Nanostructures: 3D Nanostar Dimers with a Sub‐10‐nm Gap for Single‐/Few‐Molecule Surface‐Enhanced Raman Scattering (Adv. Mater. 15/2014) 下载免费PDF全文
Manohar Chirumamilla Andrea Toma Anisha Gopalakrishnan Gobind Das Remo Proietti Zaccaria Roman Krahne Eliana Rondanina Marco Leoncini Carlo Liberale Francesco De Angelis Enzo Di Fabrizio 《Advanced materials (Deerfield Beach, Fla.)》2014,26(15):2352-2352
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A label-free approach using plasmonic coupling interference (PCI) nanoprobes for nucleic acid detection using surface-enhanced Raman scattering (SERS) is described. To induce a strong plasmonic coupling effect, a nanonetwork of silver nanoparticles with the Raman label located between adjacent nanoparticles is assembled by Raman-labeled DNA-locked nucleic acid (LNA) duplexes. The PCI method then utilizes specific nucleic acid sequences of interest as competitor elements for the Raman-labeled DNA strands to interfere the formation of nanonetworks in a competitive binding process. As a result, the plasmonic coupling effect induced through the formation of the nanonetworks is significantly diminished, resulting in a reduced SERS signal. The potential of the PCI technique for biomedical applications is illustrated by detecting single-nucleotide polymorphism (SNP) and microRNA sequences involved in breast cancers. The results of this study could lead to the development of nucleic acid diagnostic tools for biomedical diagnostics and biosensing applications using SERS detection. 相似文献
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Nanoporous Networks: Assembly of a Bacteriophage‐Based Template for the Organization of Materials into Nanoporous Networks (Adv. Mater. 21/2014) 下载免费PDF全文
Noémie‐Manuelle Dorval Courchesne Matthew T. Klug Po‐Yen Chen Steven E. Kooi Dong Soo Yun Nina Hong Nicholas X. Fang Angela M. Belcher Paula T. Hammond 《Advanced materials (Deerfield Beach, Fla.)》2014,26(21):3568-3568
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Hotspots: Hotspot‐Engineered 3D Multipetal Flower Assemblies for Surface‐Enhanced Raman Spectroscopy (Adv. Mater. 34/2014) 下载免费PDF全文
Kinam Jung Jungsuk Hahn Sungjun In Yongjun Bae Heechul Lee Peter V. Pikhitsa Kwangjun Ahn Kyungyeon Ha Jong‐Kwon Lee Namkyoo Park Mansoo Choi 《Advanced materials (Deerfield Beach, Fla.)》2014,26(34):5923-5923
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Plasmonics: Plasmon‐Enhanced Sub‐Wavelength Laser Ablation: Plasmonic Nanojets (Adv. Mater. 10/2012)
Ventsislav K. Valev Denitza Denkova Xuezhi Zheng Arseniy I. Kuznetsov Carsten Reinhardt Boris N. Chichkov Gichka Tsutsumanova Edward J. Osley Veselin Petkov Ben De Clercq Alejandro V. Silhanek Yogesh Jeyaram Vladimir Volskiy Paul A. Warburton Guy A. E. Vandenbosch Stoyan Russev Oleg A. Aktsipetrov Marcel Ameloot Victor V. Moshchalkov Thierry Verbiest 《Advanced materials (Deerfield Beach, Fla.)》2012,24(10):OP28-OP28