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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李佳翰(Jia-Han Li) | |
| dc.contributor.author | Yu-Jui Wang | en |
| dc.contributor.author | 王于瑞 | zh_TW |
| dc.date.accessioned | 2021-06-17T08:37:45Z | - |
| dc.date.available | 2024-08-16 | |
| dc.date.copyright | 2019-08-16 | |
| dc.date.issued | 2019 | |
| dc.date.submitted | 2019-08-08 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/74472 | - |
| dc.description.abstract | 我們研究了由聚合物微球產生的光子奈米噴流應用於表面增強拉曼散射方法，並進一步提高細胞裂殖素（一種植物生長調節劑）的檢測靈敏度。採用分散聚合法製備單分散聚苯乙烯微球，並用氣水界面漂浮法將微球在表面增強拉曼散射基底上塗覆。該組合結構使得能夠產生與電漿共振耦合的光子奈米噴流，從而增強拉曼散射信號，該提出結構的進一步研究可用於光學傳感應用。
我們研究了具有與微球結構不同光學性質的生物相容性水凝膠核殼微球帶來的光子奈米噴流。發現殼層的存在可以顯著影響光子奈米噴流的特性，例如焦距，強度，有效長度和焦點尺寸。Klarite基底上的生物相容性核殼微球的光子奈米噴流的數值模擬，其是經典的表面增強拉曼散射基底，顯示在檢測系統中添加核殼微球的情況下，拉曼信號可以是與不存在核殼微球的情況相比，在水中增強23倍，在空氣中增強108倍。我們對使用由生物相容性水凝膠核殼微球產生的可調諧光子奈米噴流的研究顯示了未來生物傳感應用的潛力。 | zh_TW |
| dc.description.abstract | The photonic nanojets generated by polymeric microspheres are studied and used for further improving the detection sensitivity of kinetin, a kind of plant growth regulators, via the surface-enhanced Raman scattering method. Monodisperse polystyrene microspheres were prepared by using dispersion polymerization method and coated on the surface-enhanced Raman scattering substrate by air-water interfacial floating method. This combined structure enables the generation of photonic nanojets coupled with the plasmonic resonances so that the Raman signals can be enhanced. Further study of this proposed structure could be useful for optical sensing applications.
We numerically studied the photonic nanojets brought about from biocompatible hydrogel core-shell microspheres with different optical properties. It was found that the presence of the shell layer can significantly affect the characteristics of the photonic nanojets, such as the focal distance, intensity, effective length, and focal size. The numerical simulations of the photonic nanojets from the biocompatible core-shell microspheres on a Klarite substrate, which is a classical surface-enhancing Raman scattering substrate, showed that the Raman signals in the case of adding the core-shell microspheres in the system can be further enhanced 23 times in water and 108 times in air as compared in the case in which no core-shell microspheres are present. Our study of using tunable photonic nanojets produced from the biocompatible hydrogel core-shell microspheres shows potential in future biosensing applications. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T08:37:45Z (GMT). No. of bitstreams: 1 ntu-108-R06525100-1.pdf: 35110590 bytes, checksum: df55a2d9b7e5c6bb4097e9fc9b7fef7d (MD5) Previous issue date: 2019 | en |
| dc.description.tableofcontents | STATEMENT OF CONTRIBUTION I
中文摘要 II ABSTRACT III LIST OF TABLE VII LIST OF DIAGRAM VIII CHAPTER 1 INTRODUCTION AND MOTIVATION 1 CHAPTER 2 THEORY 5 2.1 PHOTONIC NANOJETS GENERATED BY MICROSPHERES FOR SURFACE-ENHANCED RAMAN SCATTERING APPLICATIONS 5 2.1.1 Photonic Nanojets 5 2.1.2 Surface-Enhanced Raman Scattering 8 2.2 SIMULATION 11 2.2.1 Finite-Difference Time-Domain Method 11 2.3 EXPERIMENT 16 2.3.1 Dispersion Polymerization method 16 2.3.2 Air-Water Interfacial Floating Method 22 CHAPTER 3 METHODOLOGY 24 3.1 SIMULATION 24 3.1.1 Effects of the Refractive Index of Microspheres on Photonic Nanojets 24 3.1.2 Effects of the Size of Monodisperse Polystyrene Microspheres on Photonic Nanojets 25 3.1.3 Effects of the Surrounding Medium on Photonic Nanojets 25 3.1.4 Enhancements of SERS Signals by Polystyrene Microspheres 26 3.1.5 Effects of Various of Parameters of the Shell of Core-shell Microspheres on Photonic Nanojets 27 3.1.6 Enhancements of SERS Signals by Core-Shell Microspheres 29 3.2 EXPERIMENT 30 3.2.1 Experimental Materials 30 3.2.2 Experimental Apparatus 31 3.2.3 Experimental Procedure 33 3.2.4 Synthesized Polymeric Emulsion Particles 34 3.2.4.1 Polymerization Method 34 3.2.4.2 Size of Synthesized Polystyrene Microspheres Observed by Scanning Electron Microscope 36 3.2.5 Synthesized Polystyrene Microspheres Coated on a SERS Substrate 37 3.2.5.1 Coating Method 37 3.2.5.2 Synthesized Polystyrene Microspheres with Commercial SERS Substrate Observed by Optical Microscopy 38 3.2.5.3 Synthesized Polystyrene Microspheres with Commercial SERS Substrate Observed by Scanning Electron Microscope 39 3.2.6 Raman Detection 39 CHAPTER 4 RESULTS AND DISCUSSION 41 4.1 USING THE PHOTONIC NANOJETS GENERATED BY MICROSPHERES FOR IMPROVING SURFACE-ENHANCED RAMAN SCATTERING DETECTION 41 4.1.1 Effects of the Refractive Index of Microspheres on Photonic Nanojets 41 4.1.2 Effects of the Size of Monodisperse Polystyrene Microspheres on Photonic Nanojets 44 4.1.3 Effects of the Surrounding Medium on Photonic Nanojets 48 4.1.4 Enhancements of SERS Signals by Polystyrene Microspheres 49 4.1.5 Measurements of Conversion Rate of Synthesized Polystyrene Microspheres 54 4.1.6 Observation of Particulate Size of Synthesized Polystyrene Microspheres 55 4.1.7 Observation of SERS Substrate with or without Synthesized Polystyrene Microspheres 58 4.1.8 Raman Spectra of Plant Growth Regulators on SERS Substrates with and without the Synthesized Polystyrene Microspheres 63 4.2 NUMERICAL STUDY OF TUNABLE PHOTONIC NANOJETS GENERATED BY BIOCOMPATIBLE HYDROGEL CORE-SHELL MICROSPHERES FOR SURFACE-ENHANCED RAMAN SCATTERING APPLICATIONS 68 4.2.1 Effects of the Thickness of the Shell of Core-Shell Microspheres on Photonic Nanojets 69 4.2.2 Effects of Size of Core-Shell Microspheres on Photonic Nanojets 77 4.2.3 Effects of Surrounding Medium on Photonic Nanojets 82 4.2.4 Enhancements of SERS Signals by Core-Shell Microspheres 84 CHAPTER 5 CONCLUSIONS 90 CHAPTER 6 REFERENCES 93 | |
| dc.language.iso | en | |
| dc.subject | 電漿共振 | zh_TW |
| dc.subject | 分散聚合法 | zh_TW |
| dc.subject | 氣水介面漂浮法 | zh_TW |
| dc.subject | 微球結構 | zh_TW |
| dc.subject | 激動素 | zh_TW |
| dc.subject | 植物生長調節劑檢測 | zh_TW |
| dc.subject | 表面增強拉曼散射 | zh_TW |
| dc.subject | 光學檢測 | zh_TW |
| dc.subject | 核殼狀微球結構 | zh_TW |
| dc.subject | 高分子 | zh_TW |
| dc.subject | 生物相容性 | zh_TW |
| dc.subject | 生醫檢測 | zh_TW |
| dc.subject | 光子奈米噴流 | zh_TW |
| dc.subject | 農業應用 | zh_TW |
| dc.subject | Agricultural application | en |
| dc.subject | Surface-enhanced Raman scattering | en |
| dc.subject | Plasmonic resonance | en |
| dc.subject | Dispersion polymerization method | en |
| dc.subject | Air-water interfacial floating method | en |
| dc.subject | Microsphere | en |
| dc.subject | Kinetin | en |
| dc.subject | Plant growth regulators sensing | en |
| dc.subject | Photonic nanojet | en |
| dc.subject | Optical sensing | en |
| dc.subject | Core-shell microsphere | en |
| dc.subject | Polymer | en |
| dc.subject | Biocompatible | en |
| dc.subject | Biosensing | en |
| dc.title | 利用一層聚苯乙烯微球與具有生物相容性水凝膠核殼微球產生之光子奈米噴流於增進表面增強拉曼散射應用 | zh_TW |
| dc.title | Using Photonic Nanojets Generated by a Layer of Polystyrene Microspheres and Biocompatible Hydrogel Core-Shell Microspheres for Improving Surface-Enhanced Raman Scattering Applications | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 107-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 薛承輝(Chun-Hway Hsueh),許文翰(Wen-Hann Sheu),戴子安(Chi-An Dai),王淑珍(Shu-Jen Wang) | |
| dc.subject.keyword | 光子奈米噴流,表面增強拉曼散射,電漿共振,分散聚合法,氣水介面漂浮法,微球結構,激動素,植物生長調節劑檢測,農業應用,光學檢測,核殼狀微球結構,高分子,生物相容性,生醫檢測, | zh_TW |
| dc.subject.keyword | Photonic nanojet,Surface-enhanced Raman scattering,Plasmonic resonance,Dispersion polymerization method,Air-water interfacial floating method,Microsphere,Kinetin,Plant growth regulators sensing,Agricultural application,Optical sensing,Core-shell microsphere,Polymer,Biocompatible,Biosensing, | en |
| dc.relation.page | 99 | |
| dc.identifier.doi | 10.6342/NTU201902638 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2019-08-10 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-108-1.pdf 未授權公開取用 | 34.29 MB | Adobe PDF |
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