1
|
Zhang X, Deng Y, Qiu H, Yi S, Huang S, Chen L, Hu S. Target-cycling synchronized rolling circle amplification strategy for biosensing Helicobacter pylori DNA. LUMINESCENCE 2023; 38:334-340. [PMID: 36754596 DOI: 10.1002/bio.4457] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/31/2023] [Accepted: 02/05/2023] [Indexed: 02/10/2023]
Abstract
Helicobacter pylori is closely linked to many gastric diseases such as gastric ulcers and duodenal ulcers. Therefore, biosensing H. pylori has attracted wide attention from both scientists and clinicians. Here, we proposed an electrochemiluminescence (ECL)-based platform that could sensitively detect H. pylori DNA. In this platform, a novel target-cycling synchronized rolling circle amplification was used for signal amplification. Silver nanoclusters (Ag NCs) were synthesized on the circle DNA products, embedding them with the ability to catalyze the electrochemical reduction of K2 S2 O8 , in turn resulting in rapid consumption of the ECL co-reactant near the working electrode, and leading to a decrease in the ECL emission intensity. In addition to its excellent stability and selectivity, the proposed strategy had a low detection limit of 10 pM, an indication that it can be beneficially applied to test biosamples. Furthermore, a biosensing chip was designed to improve the throughput and shed new light on large-scale clinical biosensing applications.
Collapse
Affiliation(s)
- Xiaorong Zhang
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Yuan Deng
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Hongzhao Qiu
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Sirui Yi
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Sijia Huang
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Lanlan Chen
- College of Chemistry, Key Laboratory of Analysis and Detecting Technology, Food Safety MOE, Fuzhou University, Fuzhou, Fujian, China
| | - Shanwen Hu
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| |
Collapse
|
2
|
Zhou M, Li L, Dan N. Enhanced electrochemiluminescence immunoassay: 1. Wisely using an electronically neutral ruthenium complex luminophore. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|