一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Bioelectrochemistry >>article
Bioelectrochemistry

Bioelectrochemistry

IF: 4.8
Download PDF

Selective aptasensor of deoxynivalenol based on dual signal enhancement of thionine electrochemistry using silver nanoparticle-loaded label at gold nanoparticle?…

Published:9 December 2024 DOI: 10.1016/j.bioelechem.2024.108881 PMID: 39657431
Xiaoying Cui,?Ke Zhao,?Zhengquan Qu,?Xipeng Chao,?Lingling Xie,?Hanyu Chen,?Baoshan He,?Baozhong Zhang

Abstract

In this work, an efficient sensing platform deoxynivalenol (DON) detection was constructed through monitoring the current change of a competitive mechanism triggered by DON, leading the signal label detached from the electrode surface by square-wave voltammetry using thionine (Thi) as a redox indicator. The complementary strand of aptamer (cDNA) and Thi were loaded onto Fe/Ni bimetallic metal-organic framework loaded with sliver nanoparticles (AgNPs@FeNi-MOF) to construct AgNPs@FeNi-MOF/cDNA/Thi signal probes. In the presence of DON, the aptamer sequence was more predisposed to form an aptamer-DON complex, resulting in the displacement of the cDNA. The signal probe was subsequently released, leading to a decrease in the signal intensity of Thi. Notably, AgNPs@FeNi-MOF has a larger electroactive specific surface area and is able to load more cDNA and thi, which can amplify the signal. Under the optimal experimental conditions, the developed sensor exhibits a good linear response in the range of 1?×?10-2 to 1?×?104 pg/mL, with a limit of detection (LOD) of 5.68?fg/mL and has good selectivity, reproducibility and stability.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Sodium hydroxide 1310-73-2 NaOH 1358 suppliers $14.00-$17490.00
Bovine albumin 9048-46-8 N/A 914 suppliers $15.00-$18680.00
AFLATOXIN B1 1162-65-8 C17H12O6 236 suppliers $46.00-$1625.00
DEOXYNIVALENOL 51481-10-8 C15H20O6 216 suppliers $49.00-$207480.00

Similar articles

IF:0

D-Glucose-Mediated Gold Nanoparticle Fabrication for Colorimetric Detection of Foodborne Pathogens

Biosensors Seo Yeon Park, Rajamanickam Sivakumar,etc Published: 1 June 2024
IF:0

Bioactivity of Mupirocin Nanoparticle-Loaded Hydrogel against Methicillin-Resistant Staphylococcus aureus (MRSA)

Applied microbiology Sukanjana Kamlungmak,?Monwadee Wonglapsuwan,etc Published: 3 March 2022
刚察县| 肥西县| 渭南市| 宣城市| 平凉市| 昌黎县| 收藏| 绥中县| 平舆县| 崇仁县| 白城市| 荣昌县| 孝昌县| 台中市| 凌云县| 林口县| 玉屏| 松江区| 华坪县| 洞头县| 惠水县| 五峰| 资阳市| 广灵县| 淮滨县| 宁南县| 白朗县| 韩城市| 武隆县| 石景山区| 聊城市| 昌都县| 靖远县| 德惠市| 辽中县| 新竹市| 盐津县| 祥云县| 石景山区| 阿拉善右旗| 台前县|