Phosphorescence approach based on silica protected carbon dots for autofluorescence interference-free and highly selective detection of fluoride

磷光 化学 检出限 自体荧光 离子键合 荧光 分析化学(期刊) 离子 色谱法 光学 有机化学 物理
作者
Meng-Xian Liu,Xiaobing Chen,Wen-Ye Liu,Jianhua Wang,Yong‐Liang Yu,Shuai Chen
出处
期刊:Analytica Chimica Acta [Elsevier BV]
卷期号:1287: 342102-342102 被引量:1
标识
DOI:10.1016/j.aca.2023.342102
摘要

Fluoride (F−), an anion with the smallest ionic radius and highest charge density, plays an important role in biomedical and environmental processes, making the development of accurate F− detection methods of great importance. Fluorometric methods with simplicity and sensitivity have gained considerable attention in F− detection. However, their accuracy faces challenges due to issues like autofluorescence interference during real-time light excitation and limited selectivity. Therefore, it is important to establish a simple, real-time light excitation-free, and highly selective method for the accurate determination of F− in complicated samples. Herein, a novel phosphorescent approach is developed for the selective and accurate detection of F− in complex samples. Phosphorescence emission CDs@SiO2 is fabricated by confining CDs in a silica protective layer. This design retains the favorable water solubility of silica while benefitting from its inertness, making it resistant to most substances. Furthermore, phosphorescent analysis without real-time light excitation eliminates autofluorescence interference, significantly improving the signal-to-noise ratio (SNR) and simplifying sample pretreatment. The specific interaction between F− and the Si–O bond can lead to the degradation of the silica protective layer, exposing the CDs to the solution, resulting in phosphorescence quenching, achieving the highly accurate and sensitive detection of F− with a linear range of 0.001–4 mM and a limit of detection (LOD) of 1 μM. This novel F− phosphorescence method based on the metal-free phosphorescent nanomaterial CDs@SiO2 integrates the benefits of no autofluorescence interference, high selectivity, and full aqueous compatibility, and its combination with a smartphone provides a simple, portable, and cost-effective detection platform for accurate and highly sensitive determination of F− in complex samples.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Ankh完成签到 ,获得积分10
刚刚
1秒前
善良天抒发布了新的文献求助10
1秒前
我不看月亮完成签到,获得积分10
2秒前
www发布了新的文献求助20
2秒前
淡定从凝完成签到,获得积分10
2秒前
超大碗芋泥完成签到,获得积分10
3秒前
xxxgoldxsx完成签到,获得积分10
3秒前
FashionBoy应助平生采纳,获得10
4秒前
alex完成签到,获得积分10
5秒前
Ding应助dddd采纳,获得10
5秒前
Nara2021完成签到,获得积分10
5秒前
5秒前
轻狂书生完成签到,获得积分10
6秒前
6秒前
harmory完成签到,获得积分10
6秒前
Ding应助小杨采纳,获得10
6秒前
大眼睛的草莓给大眼睛的草莓的求助进行了留言
6秒前
形容词加名词完成签到 ,获得积分10
6秒前
西出阳关完成签到,获得积分10
7秒前
无花果应助lllllllll采纳,获得10
7秒前
8秒前
我爱读文献完成签到,获得积分10
9秒前
CAt5完成签到,获得积分10
9秒前
香蕉觅云应助jfeng采纳,获得10
9秒前
852应助咸鱼之王采纳,获得10
9秒前
栖木木完成签到 ,获得积分10
9秒前
爱听歌的糖豆完成签到,获得积分10
9秒前
shiizii完成签到,获得积分10
9秒前
每天看一篇论文完成签到,获得积分10
10秒前
bbb完成签到,获得积分10
10秒前
胡闹的小南完成签到,获得积分10
10秒前
10秒前
10秒前
10秒前
10秒前
10秒前
稳住完成签到,获得积分10
11秒前
科研通AI5应助fangfang采纳,获得200
11秒前
11秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Social Research Methods (4th Edition) by Maggie Walter (2019) 2390
A new approach to the extrapolation of accelerated life test data 1000
北师大毕业论文 基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 390
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Robot-supported joining of reinforcement textiles with one-sided sewing heads 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4009325
求助须知:如何正确求助?哪些是违规求助? 3549162
关于积分的说明 11301105
捐赠科研通 3283572
什么是DOI,文献DOI怎么找? 1810370
邀请新用户注册赠送积分活动 886205
科研通“疑难数据库(出版商)”最低求助积分说明 811301