Rapid Microwave-Assisted Synthesis of Nitrogen-Doped Carbon Quantum Dots as Fluorescent Nanoprobe for Sensitive Estimation of Tizanidine in Human Urine and Dosage Forms: Application to Content Uniformity Testing

IF 3.2 4区 化学 Q2 CHEMISTRY, ANALYTICAL
Luminescence Pub Date : 2025-04-01 DOI:10.1002/bio.70160
Sara Elhak, Yasser El-Shabrawy, Fathalla Belal, Galal Magdy
{"title":"Rapid Microwave-Assisted Synthesis of Nitrogen-Doped Carbon Quantum Dots as Fluorescent Nanoprobe for Sensitive Estimation of Tizanidine in Human Urine and Dosage Forms: Application to Content Uniformity Testing","authors":"Sara Elhak,&nbsp;Yasser El-Shabrawy,&nbsp;Fathalla Belal,&nbsp;Galal Magdy","doi":"10.1002/bio.70160","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>This study introduces a novel sensitive and environment-friendly spectrofluorimetric method for determination of an important muscle relaxant drug, tizanidine, with no need for using organic solvents or any pre-derivatization steps. This strategy depends on tizanidine quenching effect on the native fluorescence of newly synthesized nitrogen-doped carbon quantum dots (N-CQDs) from <i>Tetraclinis articulata</i> extract, for the first time, using a microwave-assisted synthetic strategy in only 4 min. Full characterization of the synthesized N-CQDs was performed by different microscopic and spectroscopic techniques. The synthesized N-CQDs showed good fluorescence emission at 380 nm when excited at 312 nm. This method is the first one for tizanidine analysis spectrofluorimetrically using N-CQDs as nanosensors. The developed approach demonstrated good linearity within the range of 0.1–1.0 μg/mL with a correlation coefficient of 0.9997 and a detection limit of 0.024 μg/mL. The developed approach was successfully applied for tizanidine estimation in its tablets and human urine samples with high % recoveries (98.04–101.67) and low %RSD (&lt; 1.5) values. Furthermore, the content uniformity testing of the tizanidine tablets was performed in accordance with the USP guidelines. The method's eco-friendliness was evaluated using AGREE and ComplexGAPI metrics. Validation of the method was performed according to ICHQ2 (R2) guidelines.</p>\n </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Luminescence","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/bio.70160","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0

Abstract

This study introduces a novel sensitive and environment-friendly spectrofluorimetric method for determination of an important muscle relaxant drug, tizanidine, with no need for using organic solvents or any pre-derivatization steps. This strategy depends on tizanidine quenching effect on the native fluorescence of newly synthesized nitrogen-doped carbon quantum dots (N-CQDs) from Tetraclinis articulata extract, for the first time, using a microwave-assisted synthetic strategy in only 4 min. Full characterization of the synthesized N-CQDs was performed by different microscopic and spectroscopic techniques. The synthesized N-CQDs showed good fluorescence emission at 380 nm when excited at 312 nm. This method is the first one for tizanidine analysis spectrofluorimetrically using N-CQDs as nanosensors. The developed approach demonstrated good linearity within the range of 0.1–1.0 μg/mL with a correlation coefficient of 0.9997 and a detection limit of 0.024 μg/mL. The developed approach was successfully applied for tizanidine estimation in its tablets and human urine samples with high % recoveries (98.04–101.67) and low %RSD (< 1.5) values. Furthermore, the content uniformity testing of the tizanidine tablets was performed in accordance with the USP guidelines. The method's eco-friendliness was evaluated using AGREE and ComplexGAPI metrics. Validation of the method was performed according to ICHQ2 (R2) guidelines.

快速微波辅助合成氮掺杂碳量子点荧光纳米探针用于人体尿液和剂型中替扎尼定的灵敏测定:在含量均匀性检测中的应用
本研究介绍了一种灵敏、环保的新型荧光光谱法,用于测定一种重要的肌肉松弛药物替扎尼定,不需要使用有机溶剂或任何衍生化前步骤。该策略依赖于替扎尼定对四环虫提取物中新合成的氮掺杂碳量子点(N-CQDs)的天然荧光的猝灭作用,首次使用微波辅助合成策略,仅需4分钟。利用不同的显微和光谱技术对合成的N-CQDs进行了全面表征。当激发波长为312 nm时,合成的N-CQDs在380 nm处有良好的荧光发射。这是第一个利用N-CQDs作为纳米传感器进行替扎尼定荧光分析的方法。方法在0.1 ~ 1.0 μg/mL范围内线性良好,相关系数为0.9997,检出限为0.024 μg/mL。该方法可用于替扎尼定片剂和人尿样品的测定,回收率高(98.04 ~ 101.67),RSD值低(< 1.5)。并按照美国药典指南进行了替扎尼定片的含量均匀性检验。使用AGREE和ComplexGAPI指标评估该方法的生态友好性。根据ICHQ2 (R2)指南对方法进行验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Luminescence
Luminescence 生物-生化与分子生物学
CiteScore
5.10
自引率
13.80%
发文量
248
审稿时长
3.5 months
期刊介绍: Luminescence provides a forum for the publication of original scientific papers, short communications, technical notes and reviews on fundamental and applied aspects of all forms of luminescence, including bioluminescence, chemiluminescence, electrochemiluminescence, sonoluminescence, triboluminescence, fluorescence, time-resolved fluorescence and phosphorescence. Luminescence publishes papers on assays and analytical methods, instrumentation, mechanistic and synthetic studies, basic biology and chemistry. Luminescence also publishes details of forthcoming meetings, information on new products, and book reviews. A special feature of the Journal is surveys of the recent literature on selected topics in luminescence.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信