通过改变掺杂比和pH提高氮掺杂碳点的量子产率

IF 6.5 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Sensors and Actuators Reports Pub Date : 2023-05-26 DOI:10.1016/j.snr.2023.100165

Megan B. Prado, Nguyen T. Truong, Adam K. Wanekaya

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引用次数: 0

摘要

本文以柠檬酸和尿素为原料，在水热微波辅助热解下合成了氮掺杂CDs (NCDs)。使用不同的碳与尿素摩尔比，并测量了不同ph值下的ph依赖性荧光和量子产率(QY)。所有非传染性疾病均表现出pH依赖性荧光，pH值为1-13时荧光增强。总体而言，碳与掺杂物质摩尔比为1:6的NCDs在pH为11时的QY最高，为19%。此外，在pH 7-11之间观察到高量子产率。因此，制备的非传染性疾病可作为具有成本效益的荧光pH传感器或生物成像应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Improving the quantum yield of nitrogen-doped carbon dots by varying dopant ratios and pH

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Improving the quantum yield of nitrogen-doped carbon dots by varying dopant ratios and pH

Herein, nitrogen-doped CDs (NCDs) were synthesized in a hydrothermal microwave-assisted pyrolysis using citric acid and urea. Differing carbon-to-urea molar ratios were used and the pH-dependent fluorescence and quantum yield (QY) at various pHs were measured. All NCDs demonstrated pH-dependent fluorescence with increased fluorescence from pH 1-13. Overall, the NCDs with a carbon-to-dopant molar ratio of 1:6 demonstrated the highest QY of 19% in pH 11. Additionally, high quantum yields were observed between pH 7-11. Therefore, NCDs, as prepared, may serve as cost-effective fluorescent pH sensors or in bioimaging applications.

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来源期刊

Sensors and Actuators Reports Multiple-

CiteScore

9.60

自引率

0.00%

发文量

审稿时长

49 days

期刊介绍： Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications. For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.