Smartphone-assisted colorimetric dual-mode sensing system based on europium-doped metal–organic frameworks for rapid on-site visual detection of Fe3+ and doxycycline

荧光 检出限 发光 材料科学 线性范围 双模 碲化镉光电 分析化学(期刊) 化学 光电子学 光学 色谱法 物理 工程类 航空航天工程
作者
Xiaodan Wu,Kangling Tang,Yu Chen,Zhaohui Zhang
出处
期刊:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [Elsevier BV]
卷期号:308: 123705-123705 被引量:4
标识
DOI:10.1016/j.saa.2023.123705
摘要

Exploring a rapid, sensitive, low-cost, in-situ intelligent monitoring multi-target fluorescence detection platform is important for food safety and environmental monitoring. A dual-mode ratiometric fluorescence sensing system integrated with a smartphone based on a luminescent metal–organic framework (NH2-MIL-53) and CdTe/Eu was developed for visual, in-situ analysis of Fe3+ and doxycycline (DOX) in this paper. Interestingly, with increasing Fe3+ concentration, the fluorescence sensing system exhibits dual-emission with CdTe QDs at 540 nM as the response signal and NH2-MIL-53 at 438 nm as the reference signal, resulting in a significant color shift of fluorescence color from blue-green to blue, with a linear range of 5––1550 nM and a detection limit of 1.08 nM. In the presence of DOX, the blue fluorescence of NH2-MIL-53 and the green fluorescence of CdTe QDs were quenched respectively by the internal filtering effect and the photoelectron transfer effect. While DOX enhances the red fluorescence of Eu3+ by the antenna effect, forming a triple-emission fluorescence sensor. The visual color of this fluorescent sensor shifted from blue green to grey to pink-white to pink to fuchsia to red as the DOX concentration increased with a detection limit of 0.11 nM. Furthermore, the developed intelligent sensing platform achieved real-time in-situ detection of Fe3+ and DOX with detection limit of 1.47 nM and 6.43 nM, respectively. The platform was applied to detection actual samples with satisfactory results, which proved a promising application for real-time on-site food safety monitoring and human health monitoring.
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
xiu完成签到 ,获得积分10
刚刚
栗爷完成签到,获得积分0
刚刚
深年完成签到,获得积分10
1秒前
求知若渴完成签到,获得积分0
1秒前
所所应助科研通管家采纳,获得10
1秒前
情怀应助科研通管家采纳,获得10
1秒前
华仔应助科研通管家采纳,获得30
1秒前
李爱国应助科研通管家采纳,获得10
2秒前
Orange应助科研通管家采纳,获得10
2秒前
我是老大应助科研通管家采纳,获得10
2秒前
华仔应助科研通管家采纳,获得10
2秒前
SciGPT应助科研通管家采纳,获得10
2秒前
2秒前
一团小煤球完成签到,获得积分10
2秒前
2秒前
NexusExplorer应助科研通管家采纳,获得10
2秒前
2秒前
2秒前
卡乐瑞咩吹可完成签到,获得积分10
2秒前
田様应助科研通管家采纳,获得10
2秒前
苦咖啡行僧完成签到 ,获得积分10
2秒前
鹤鸣完成签到,获得积分10
3秒前
守望阳光1完成签到,获得积分10
3秒前
正直天空发布了新的文献求助10
3秒前
5秒前
YU发布了新的文献求助10
5秒前
大方元风完成签到 ,获得积分10
5秒前
隐形曼青应助自觉寒梦采纳,获得10
6秒前
ntxlks完成签到,获得积分10
6秒前
祝雲完成签到,获得积分10
6秒前
Spice完成签到 ,获得积分10
7秒前
John完成签到,获得积分20
7秒前
高高诗柳发布了新的文献求助10
8秒前
8秒前
江舟添盛望完成签到 ,获得积分10
10秒前
10秒前
晶晶发布了新的文献求助10
11秒前
大气灵枫发布了新的文献求助10
11秒前
不安的硬币应助DrW采纳,获得10
12秒前
yuanletong完成签到 ,获得积分10
12秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
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 4038388
求助须知:如何正确求助?哪些是违规求助? 3576106
关于积分的说明 11374447
捐赠科研通 3305798
什么是DOI,文献DOI怎么找? 1819322
邀请新用户注册赠送积分活动 892672
科研通“疑难数据库(出版商)”最低求助积分说明 815029