1
|
Mu J, Li X, Jia Q. Anchoring Au nanoclusters into coordination polymers: A novel approach toward ATP detection and its application. Talanta 2024; 277:126306. [PMID: 38795592 DOI: 10.1016/j.talanta.2024.126306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/09/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Adenosine triphosphate (ATP) is the main source of energy required for all life activities and is used as a biomarker for diseases such as cancer. It is of great significance to design a novel fluorescent probe with favorable performance for monitoring the changes of ATP concentration. Herein, a fluorescence probe named ZnCPs@AuNCs for ATP sensing was designed and fabricated by integrating AuNCs into ZnCPs. The emission intensity of AuNCs was greatly enhanced upon the formation of the ZnCPs@AuNCs nanocomposites, which may be attributed to ZnCPs restricting the molecular motion of AuNCs. Upon the introduction of ATP, the fluorescence intensity at 564 nm of ZnCPs@AuNCs is quenched. According to this phenomenon, a sensitive and reliable ATP sensing platform was established. Moreover, ZnCPs@AuNCs were incorporated into a poly (vinyl alcohol) matrix for the fabrication of fluorescent film, which exhibited solid-state fluorescence. Inspired by the remarkable fluorescent properties of ZnCPs@AuNCs, the fluorescent hydrogel was prepared by mixing ZnCPs@AuNCs with κ-carrageenan, which demonstrated a response to ATP and favorable self-healing ability. This work presents a perspective of ZnCPs@AuNCs in multiple applications such as biosensing, fluorescent film, and hydrogel construction.
Collapse
Affiliation(s)
- Jin Mu
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xiqian Li
- Obstetrics & Gynecology, China-Japan Union Hospital of Jilin University, Changchun, 130012, China
| | - Qiong Jia
- College of Chemistry, Jilin University, Changchun, 130012, China.
| |
Collapse
|
2
|
Han Y, Wang M, Xie H, Zhou Y, Wang S, Wang G. Fabrication of Au nanoclusters confined on hydroxy double salt-based intelligent biosensor for on-site monitoring of urease and its inhibitors. Talanta 2024; 271:125725. [PMID: 38295444 DOI: 10.1016/j.talanta.2024.125725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 02/02/2024]
Abstract
Sensitive and convenient sensing of urease and its inhibitors is exceptionally urgent in clinical diagnosis and new drug development. In this study, the gold nanoclusters (AuNCs) and hydroxyl double salt (HDS) were composited by a simple confinement effect to prepare highly fluorescent AuNCs@HDS composites to monitor urease and its drug inhibitors. HDS was used as a matrix to confine AuNCs (AuNCs@HDS), facilitating the emission intensity of AuNCs. However, acidic conditions (low pH) can disrupt the structure of HDS to break the confinement effect, and quench the fluorescence of AuNCs. Therefore, a sensing platform for pH-related enzyme urease detection was constructed based on the sensitive response of AuNCs@HDS to pH. This sensing platform had a linear response range of 0.5-22.5 U/L and a low limit of detection (LOD) of 0.19 U/L for urease. Moreover, this sensing platform was also applied to monitor urease inhibitors and urease in human saliva samples. Additionally, a portable hydrogel kit combined with a smartphone was developed for urease detection to achieve portable, low-cost, instrument-free, and on-site monitoring of urease.
Collapse
Affiliation(s)
- Yaqing Han
- Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, PR China; College of Medical Engineering & the Key Laboratory for Medical Functional, Nanomaterials, Jining Medical University, Jining, 272067, PR China
| | - Mengke Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional, Nanomaterials, Jining Medical University, Jining, 272067, PR China
| | - Han Xie
- Shenyang Key Laboratory of Medical Molecular Theranostic Probes, School of Pharmacy, Shenyang Medical University, Shenyang, 110034, PR China
| | - Yitong Zhou
- Shenyang Key Laboratory of Medical Molecular Theranostic Probes, School of Pharmacy, Shenyang Medical University, Shenyang, 110034, PR China
| | - Shun Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional, Nanomaterials, Jining Medical University, Jining, 272067, PR China.
| | - Guannan Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional, Nanomaterials, Jining Medical University, Jining, 272067, PR China; Shenyang Key Laboratory of Medical Molecular Theranostic Probes, School of Pharmacy, Shenyang Medical University, Shenyang, 110034, PR China.
| |
Collapse
|
3
|
Li M, Xie Y, Zhang J, Su X. Self-Assembled Integrated Nanozyme Cascade Biosensor with Dual Catalytic Activity for Portable Urease Analysis. Anal Chem 2024; 96:1284-1292. [PMID: 38194438 DOI: 10.1021/acs.analchem.3c04652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
In this work, a novel nanozyme (Cu@Zr) with all-in-one dual enzyme and fluorescence properties is designed by simple self-assembly. A nanozyme cascade sensor with disodium phenyl phosphate (PPDS) as substrate was first established by exploiting the dual enzymatic activities of phosphatase and laccase. Specifically, phosphatase cleaves the P-O bond of PPDS to produce colorless phenol, which is then oxidized by laccase and complexed with the chromogenic agent 4-aminoantipyrine (4-AP) to produce red quinoneimine (QI). Strikingly, the NH3 produced by the urease hydrolysis of urea can interact with Cu@Zr, accelerating the electron transfer rate and ultimately leading to a significantly improved performance of the cascade reaction. Moreover, the fluorescence at 440 nm of Cu@Zr is further quenched by the inner filter effect (IFE) of QI. Thus, the colorimetric and fluorescence dual-mode strategy for sensitive urease analysis with LODs of 3.56 and 1.83 U/L was established by the proposed cascade sensor. Notably, a portable swab loaded with Cu@Zr was also prepared for in situ urease detection with the aid of a smartphone RGB readout. It also provides a potentially viable analytical avenue for environmental and biological analysis.
Collapse
Affiliation(s)
- Meini Li
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Yunfei Xie
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Jiabao Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Xingguang Su
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| |
Collapse
|