Journal ArticleDOI
Engineered Optoplasmonic Core-Satellite Microspheres for SERS Determination of Methamphetamine Derivative and its Precursors
Yan Hong,Minli Li,Zehua Wang,Buyi Xu,Yating Zhang,Shouxu Wang,Weidong He,Chong Wang,Guoyun Zhou,Yuanming Chen,Yuanzhang Su,Jun Li,Tian Xun Gong +12 more
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In this article , the core-satellite optoplasmonic particle comprised of the central dielectric silica sphere and the surrounding gold nanorods with varied aspect ratio (AR) were fabricated through electrostatic-assisted self-assembly.Abstract:
In this work, the core-satellite optoplasmonic particle comprised of the central dielectric silica sphere and the surrounding gold nanorods (AuNRs) with varied aspect ratio (AR) were fabricated through electrostatic-assisted self-assembly. The manipulation over the optoplasmonic resonance of the hybrid material was accomplished through tuning the AR of AuNRs at the perimeter of the silica microsphere, which enables the optimization of local plasmonic-photonic electric field enhancement in accordance with the incident wavelength. The monolayer structure assembled by the hybrid particles, termed as optoplasmonic surface, serves as a robust surface-enhanced Raman spectroscopy (SERS) sensing substrate because the building block is surprisingly agglomeration-resistive under severe conditions including the dryness and salination. The optimal SERS excitation plane of the optoplasmonic surface was found to be the equatorial one due to the geometrical factor holding the higher density of AuNRs, the plasmonic-photonic interaction between adjacent optoplasmonic particles and the light guiding effect. The fabricated optoplasmonic surface (silica sphere diameter = 4 µm, AR of AuNR = 3.2) was implemented for the SERS sensing of 3,4-methylenedioxymethamphetamine (MDMA) and the corresponding precursors including safrole and piperonal, achieving a limit of detection (LOD) down to the magnitude of 5 nM with the excitation wavelength at 785 nm. Practical SERS tests on the glassware surface and mimic drug demonstrate the compatibility of the optoplasmonic sensing platform in cooperation with the portable Raman spectrometers. This hybrid probe with engineerable resonance and elevated stability is a promising candidate for the application of SERS inspection in forensic activities. read more
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Journal ArticleDOI
Fabrication of optoplasmonic particles through electroless deposition and the application in SERS-based screening of nodule-involved lung cancer.
Zehua Wang,Yan Hong,H Yan,Huaichao Luo,Yating Zhang,Lintao Li,Shun Lu,Yuanming Chen,Dongsheng Wang,Yuanzhang Su,Gang Yin +10 more
TL;DR: In this article , a core-satellite optoplasmonic particle containing a silica microsphere covered with gold nanoparticles (AuNPs) was developed through wet chemistry synthesis in aqueous phase.
Journal ArticleDOI
Silica Nanospheres Coated Silver Islands as an Effective Opto-Plasmonic SERS Active Platform for Rapid and Sensitive Detection of Prostate Cancer Biomarkers
TL;DR: In this paper , an opto-plasmonic hybrid structure for sensitive detection of the prostate cancer biomarker sarcosine using silica nanospheres coated silver nano-islands as a facile and efficient surfaceenhanced Raman spectroscopy (SERS) active substrate has been developed via thin (5-15 nm) deposition of silver islands using a simple and cost-effective Radio Frequency (RF) sputtering technique followed by the synthesis and decoration of silica nano-nospheres synthesized via Stober's method.
Journal ArticleDOI
Methamphetamine detection using nanoparticle-based biosensors: A comprehensive review
TL;DR: In this article , a comprehensive review focuses on the detection of METH using nanoparticles in real world samples such as biological fluids and wastewater, while discussing varieties of materials used as nanoparticles and that aid in its recognition.
Journal ArticleDOI
Construction of hierarchical porous 3D nanostructures with high specificity as SERS aptasensors for rapid and ultrasensitive detection of MC-LR
TL;DR: In this paper , a 3D-PSM with a hierarchical biporous structure was used to detect microcystin-LR at concentrations as low as 0.01 nmol/L, with fast recognition time (10 min), low sample consumption (20 μL), and simple operation.
Journal ArticleDOI
Contactless and robust dielectric microspheres-assisted surface-enhanced Raman scattering sensitivity improvement for anthrax biomarker detection
TL;DR: In this article , a contactless and robust dielectric microspheres (DMs)-assisted surface enhanced Raman scattering (SERS) enhancement method was presented to improve SERS detection sensitivity detection sensitivity.
References
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Present and Future of Surface-Enhanced Raman Scattering
Judith Langer,Dorleta Jimenez de Aberasturi,Javier Aizpurua,Ramon A. Alvarez-Puebla,Baptiste Auguié,Baptiste Auguié,Jeremy J. Baumberg,Guillermo C. Bazan,Steven E. J. Bell,Anja Boisen,Alexandre G. Brolo,Jaebum Choo,Dana Cialla-May,Dana Cialla-May,Volker Deckert,Volker Deckert,Laura Fabris,Karen Faulds,F. Javier García de Abajo,Royston Goodacre,Duncan Graham,Amanda J. Haes,Christy L. Haynes,Christian W. Huck,Tamitake Itoh,Mikael Käll,Janina Kneipp,Nicholas A. Kotov,Hua Kuang,Eric C. Le Ru,Eric C. Le Ru,Hiang Kwee Lee,Jian-Feng Li,Xing Yi Ling,Stefan A. Maier,Thomas G. Mayerhöfer,Thomas G. Mayerhöfer,Martin Moskovits,Kei Murakoshi,Jwa-Min Nam,Shuming Nie,Yukihiro Ozaki,Isabel Pastoriza-Santos,Jorge Pérez-Juste,Juergen Popp,Juergen Popp,Annemarie Pucci,Stephanie Reich,Bin Ren,George C. Schatz,Timur Shegai,Sebastian Schlücker,Li-Lin Tay,K. George Thomas,Zhong-Qun Tian,Richard P. Van Duyne,Tuan Vo-Dinh,Yue Wang,Katherine A. Willets,Chuanlai Xu,Hongxing Xu,Yikai Xu,Yuko S. Yamamoto,Bing Zhao,Luis M. Liz-Marzán +64 more
TL;DR: Prominent authors from all over the world joined efforts to summarize the current state-of-the-art in understanding and using SERS, as well as to propose what can be expected in the near future, in terms of research, applications, and technological development.
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Characterization of size, surface charge, and agglomeration state of nanoparticle dispersions for toxicological studies
TL;DR: The role of important factors such as solution ionic strength, pH, and particle surface chemistry that control nanoparticle dispersion was examined in this article, where the size and zeta potential of four TiO2 and three quantum dot samples dispersed in different solutions (including one physiological medium) were characterized.
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Electromagnetic theories of surface-enhanced Raman spectroscopy
TL;DR: This review summarizes the development of theories over the past four decades pertinent to SERS, especially those contributing to the current understanding of surface-plasmon (SP) resonances in the nanostructured conductor.
Journal ArticleDOI
Gold nanorod-based localized surface plasmon resonance biosensors: A review
TL;DR: A detailed review of the key underpinning science for such systems and of recent progress in the development of a number of LSPR-based biosensors which use gold nanorods as the active element is provided in this paper.
Journal ArticleDOI
Ultrasonic dispersion of nanoparticles for environmental, health and safety assessment--issues and recommendations.
TL;DR: Survey potential sonication effects that can alter the physicochemical or biological properties of dispersed nanomaterials and discuss methods to mitigate these effects, and propose a method for standardizing the measurement of sonication power to facilitate reproducibility of studies involving engineered nanoparticle suspensions obtained via sonication.
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