Article
Nanoscience & Nanotechnology
Zhongzheng Yu, Chang-Keun Lim, Wen Kiat Chan, Yu Chen, Wei Shao, Yan Zhang, Paras N. Prasad, Timothy Thatt Yang Tan
Summary: A novel approach utilizing UCNPs nanoformulation containing ICG to detect water content in organic solvents via turn-on or turn-off fluorescence process with high sensitivity at the ppm level has been reported. This method provides a guide for designing fluorescent nanosensors for water detection in organic solvents and deepens understanding of energy transfer processes in the system.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Yulian Zhu, Xiaomei Guo, Xiao Ma, Kai Liu, Yuting Han, Yongquan Wu, Xun Li
Summary: In this study, a rare earth upconversion luminescent (UCL) nanocomposite probe UCNP-PEG-NOF1 was designed and synthesized for the UCL detection of Cys. The probe exhibited good selectivity and high sensitivity for Cys, with a low background signal and strong penetration ability.
Article
Chemistry, Applied
Hongqi Chen, Wei Tang, Yunchun Liu, Lun Wang
Summary: In this study, a quantitative image analysis method based on cyanine dye-upconversion nanoparticles composite luminescent nanoprobe for the detection of nitrite was developed. The method showed fast response time, low sample consumption, and powerful data support, and was successfully applied for the analysis of nitrite in environmental water and food samples.
Article
Chemistry, Organic
Ajay Kumar, Manaranjan Sahu, Uday Maitra
Summary: Reactions in both protic and aprotic water-miscible solvents can be affected by water presence, as seen in the water-induced quenching of Tb(III) luminescence in a methanolic solution containing salicylic acid. This quenching was used for accurate measurement of water content in various solvents at concentrations ranging from 0.1% to 4% (v/v).
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Papri Mondal, Jit Satra, Divesh N. Srivastava, Gopala Ram Bhadu, Bibhutosh Adhikary
Summary: In this study, a MnO2-modified Ag-based codoped upconversion nanoparticle (UCNP) was designed as an optical turn-on fluorometric probe for highly sensitive and selective detection of trace As3+ (0.028 ppb). Luminescence resonance energy transfer (LRET) between MnO2 as the energy acceptor and cod-AMO-3 as the energy donor was utilized for the detection of As3+.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Lipeng Pan, Kailun Huang, Guangzong Min, Xiaobao Li, Junjun Shao, Fangxing Ma, Lingqing Kong, Mingye Zou, Guoqing Meng, Wei Chen, Likun Yang, Xiang-Yang Liu, Naibo Lin
Summary: The study introduces a simple and compact fiber optic sensor for the detection and quantification of TYR. The sensor has high sensitivity and portability, making it a convenient and practical point of care detection method.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Chengshan Ji, Ruiqing Fan, Jian Zhang, Tiancheng Sun, Ke Zhu, Xin Jiang, Wenwen Jia, Yulin Yang
Summary: Researchers have successfully synthesized a series of novel rare earth metal-organic framework materials and used their excellent luminescent properties to construct stable luminescent probes for detecting captopril molecules, showing high sensitivity and application prospects.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Wei Tang, Ruo Mi, Lun Wang, Hongqi Chen
Summary: The system combines quantitative image analysis with magnetic separation technology, showing low background interference and high separation efficiency, making it suitable for application in biology.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Wen-Kai Fang, Liu Liu, Li-ling Zhang, Da Liu, Yang Liu, Hong-Wu Tang
Summary: Early diagnosis is crucial for the treatment of Alzheimer's disease. This study combines optical trapping and highly doped upconversion nanoparticles for the detection of AβOs, showing high sensitivity and specificity.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Qin Ouyang, Li Wang, Waqas Ahmad, Yawen Rong, Huanhuan Li, Yuqian Hu, Quansheng Chen
Summary: A sensitive biosensor based on luminescent resonance energy transfer (LRET) was developed for detecting carbendazim (CBZ) pesticide residues. The biosensor showed high sensitivity and specificity for quantifying CBZ within a range of 0.1-5000 ng.mL(-)(1). Validation of the biosensor's precision and accuracy was carried out using an HPLC method with no significant differences observed.
Article
Chemistry, Multidisciplinary
Zhou Ding, Yue He, Hongtao Rao, Le Zhang, William Nguyen, Jingjing Wang, Ying Wu, Caiqin Han, Christina Xing, Changchun Yan, Wei Chen, Ying Liu
Summary: In this study, a novel rare-earth-doped upconverted nanomaterial NaYF4:Yb,Tm fluorescent probe was developed for the detection of cancer-related specific miRNAs in low abundance. The probe achieved fluorescence based on upconversion of nanomaterials NaYF4:Yb,Tm, with optimal doping ratio of 40:1. The probe showed potential for distinguishing different types of miRNA, making it a valuable tool for disease diagnosis, including early cancer detection.
Article
Chemistry, Organic
Saurodeep Mandal, Koushik Pramanik, Sujoy Das, Md Majharul Islam, Sukhendu Mandal, Prithidipa Sahoo
Summary: In this study, a Dansyl functionalized fluorescent probe capable of sensing trace amounts of water contaminant via color change was designed and synthesized. Experimental and theoretical evaluations proved the potential of the probe and shed light on its sensing mechanism. Additionally, the probe can be used as a cell imaging dye.
LETTERS IN ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Analytical
Bing Deng, Jingyi Feng, Ning Duan, Shaoxiang Yang, Hongyu Tian, Baoguo Sun
Summary: A novel fluorescent probe (probe 1) was developed for detecting water content in organic solvents. It successfully determined trace water content in various solvents and could also be used for human serum albumin detection. Interestingly, probe 1 had different color response and fluorescence characteristics in deuterated and nondeuterated solvents.
Article
Chemistry, Applied
Neha Dubey, Sudeshna Chandra
Summary: Upconversion nanoparticles doped with lanthanides can efficiently convert near-infrared excitation into UV and visible emissions, making them appealing materials for applications like drug delivery and bioimaging.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Analytical
Zhikun Zhang, Liu Zhang, Ping Han, Qingju Liu
Summary: Terbium-based metal-organic frameworks were used to construct a fluorescence probe for the detection of organophosphorus pesticides. The method showed high sensitivity and selectivity, and was successfully applied to the analysis of tap water and strawberry samples.
