微波製作奈米顆粒的初步探討

Preliminary Study on the Microwave Preparation of Nanoparticles

李蘊成(Wan-Shing Lee)

指導教授 ： 傅傳博

國立暨南國際大學/科技學院/應用化學學系/碩士(2019年)

https://doi.org/10.6837/ncnu201900248

摘要

本篇論文主要是探討有關高螢光強度的檸檬酸螢光碳點的製備和實驗條件優化。在研究中會使用兩種不同的氮源（二乙三胺或雙氰胺）用於檸檬酸碳點微波反應合成反應中。在研究中籍由調整反應温度、水量、反應物濃度、反應物比例以及反應時間，合成螢光強度較高的碳點。結果看見二乙三胺和檸檬酸在水中微波反應，產物的螢光強度最高。而且亦嘗試了使用微波加熱法成功合成了螢光強度較高的雙氰胺-檸檬酸碳點。它們若果使用其他生物分子進行表面修飾，未來在生物分析的方面具有應用價值。

關鍵字

螢光碳點 ； 檸檬酸 ； 二乙三胺 ； 雙氰胺

並列摘要

This paper mainly discusses the preparation and optimization of experimental conditions for citric-acid based carbon dots of high fluorescence intensity. In the study, two different nitrogen sources--diethylenetriamine or dicyandiamide--were used in the microwave-assisted synthesis of the citric-acid based carbon dots. In the experiment, the reaction temperature, the amount of water, the concentration and ratio of the reactants, and the reaction time were adjusted to synthesize the carbon dots of higher fluorescence intensity. It was found that the product of diethylenetriamine and citric acid synthesized in water by the microwave-assisted method had the highest fluorescence intensity. Moreover, the dicyandiamide-citric acid carbon dots of higher fluorescence intensity were successfully synthesized by microwave heating. If used with other biomolecules for surface modification, they are valuable and promising for future applications in bioanalysis.

並列關鍵字

Fluorescent carbon dots ； citric acid ； diethylenetriamine ； dicyandiamide

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