PMID- 38013435 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231212 IS - 1520-6882 (Electronic) IS - 0003-2700 (Linking) VI - 95 IP - 49 DP - 2023 Dec 12 TI - Integrating Intelligent Logic Gate Dual-Nanozyme Cascade Fluorescence Capillary Imprinted Sensors for Ultrasensitive Simultaneous Detection of 2,4-Dichlorophenoxyacetic Acid and 2,4-Dichlorophenol. PG - 18139-18148 LID - 10.1021/acs.analchem.3c03571 [doi] AB - Herein, a dual-nanozyme cascade catalysis triemission fluorescence capillary imprinted sensor integrated with intelligent logic gates was constructed for simultaneous detection of 2,4-dichlorophenoxyacetic acid (2,4-DA) and 2,4-dichlorophenol (2,4-DCP). The novel nanozyme fluorescence organic framework (Bi, Co-MOF) was grafted on the surface of Fe(3)O(4) modified with histidine to form a nanozyme composite (FBM) with dual-enzyme activity, which was imprinted with 2,4-DA to prepare a fluorescence molecularly imprinted polymer (FBM@MIP). Carbon dots (CDs) coupling with FBM@MIP (FBM@MIP/CDs) was inhaled into a capillary to construct a dual-nanozyme capillary imprinted sensor directly. The FBM@MIP/CDs capillary sensor realized to detect 2,4-DA and 2,4-DCP simultaneously within a linear concentration range of 1.0 x 10(-12)-1.2 x 10(-9) M and 1.0 x 10(-12)-4.8 x 10(-9) M with the detection limit of 0.75 and 0.68 pM, respectively. Interestingly, a smartphone-assisted portable capillary fluorescence intelligent sensing platform was developed that can detect 2,4-DA and 2,4-DCP visually without tedious operations such as soaking and drying. Combined with a smartphone, the linear relationships between RGB ratios and concentrations of 2,4-DA and 2,4-DCP were established with the detection limit of 0.93 and 0.81 pM, respectively. The integrated logic gates provided a promising way for intelligent sensing of multiple targets simultaneously, which provided a new strategy for ultrasensitive simultaneous detection of multiple pollutants with a microvolume (18 muL/time) in complex environments. FAU - Chen, Yu AU - Chen Y AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. FAU - Tang, Kangling AU - Tang K AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. FAU - Zhou, Qin AU - Zhou Q AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. FAU - Wang, Xiangni AU - Wang X AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. FAU - Wang, Ruoyan AU - Wang R AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. FAU - Zhang, Zhaohui AU - Zhang Z AUID- ORCID: 0000-0002-7318-6630 AD - College of Biological and Chemical Engineering, Changsha University, Changsha 410022, PR China. AD - College of Chemistry and Chemical Engineering, Jishou University, Jishou,Hunan 416000, China. AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China. LA - eng PT - Journal Article DEP - 20231128 PL - United States TA - Anal Chem JT - Analytical chemistry JID - 0370536 SB - IM EDAT- 2023/11/28 06:42 MHDA- 2023/11/28 06:43 CRDT- 2023/11/28 03:39 PHST- 2023/11/28 06:43 [medline] PHST- 2023/11/28 06:42 [pubmed] PHST- 2023/11/28 03:39 [entrez] AID - 10.1021/acs.analchem.3c03571 [doi] PST - ppublish SO - Anal Chem. 2023 Dec 12;95(49):18139-18148. doi: 10.1021/acs.analchem.3c03571. Epub 2023 Nov 28.