Protein-Induced Electrochemiluminescence Enhancement of Tetraphenylvinyl Derivatives for Ultrasensitive Bioanalysis

化学 生物分析 电化学发光 蛋白质检测 色谱法 组合化学 纳米技术 检出限 材料科学
作者
Pan Zhou,Xiaochun Zhu,Xiaofeng Wang,Ruo Yuan,Yaqin Chai
出处
期刊:Analytical Chemistry [American Chemical Society]
卷期号:96 (49): 19473-19482
标识
DOI:10.1021/acs.analchem.4c04027
摘要

Herein, the bovine serum albumin (BSA)-loaded tetrakis[4-(4′-cyanophenyl)phenyl]ethane nanoaggregates (NAs) (BSA@TBPE-(CN)4 NAs) as a novel electrochemiluminescence (ECL) emitter were first prepared, which exhibited superior ECL performance via the newly defined protein-induced ECL enhancement. Impressively, BSA not only restricted the intramolecular motions by its hydrophobic cavity to improve optical radiation for enhancing ECL efficiency but also promoted the electrochemical excitation of BSA@TBPE-(CN)4 NAs in which amino acid residues of BSA altered the surface states and narrowed the energy gap of BSA@TBPE-(CN)4 NAs for further boosting the ECL efficiency. Furthermore, the BSA@TBPE-(CN)4 NAs displayed a more dispersed state due to electrostatic repulsion caused by its considerable negative charges, which was conducive to reacting more fully with coreactants for improving ECL emission. Excitingly, the BSA@TBPE-(CN)4 NAs exhibited a threefold stronger ECL intensity and a 4.8-fold higher ECL efficiency compared to those of TBPE-(CN)4 NAs. Thus, as an application, an ECL biosensor was fabricated based on the BSA@TBPE-(CN)4 NAs as an efficient emitter and the mismatch-fueled three-dimensional (3D) DNA walker as an effective signal amplifier for the rapid and ultrasensitive detection of microRNA-21 with a detection limit (LOD) of 19.1 aM, and it was successfully applied to assess the microRNA-21 expression of human cancer cells MCF-7 and HeLa. This work developed a novel avenue to reasonably synthesize highly efficient organic ECL emitters for motivating their potential application in ultrasensitive biosensing and high-resolution ECL bioimaging.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
c程序语言发布了新的文献求助10
1秒前
lll发布了新的文献求助10
2秒前
科研通AI2S应助hy采纳,获得10
3秒前
123发布了新的文献求助10
4秒前
swordshine完成签到,获得积分10
5秒前
阿鹏完成签到,获得积分10
6秒前
6秒前
胡勇关注了科研通微信公众号
8秒前
英姑应助机智楼房采纳,获得10
8秒前
英俊的铭应助墨aizhan采纳,获得10
9秒前
Ava应助angel采纳,获得10
9秒前
李y梅子完成签到,获得积分10
9秒前
瑾瑜完成签到 ,获得积分10
10秒前
竹筏过海应助森sen采纳,获得30
10秒前
Clarence0320应助阿鹏采纳,获得10
10秒前
11秒前
yrw完成签到,获得积分10
11秒前
12秒前
我在发布了新的文献求助10
12秒前
12秒前
Lalalakal发布了新的文献求助10
12秒前
LY完成签到 ,获得积分10
12秒前
13秒前
Adzuki0812完成签到 ,获得积分10
13秒前
c程序语言完成签到,获得积分10
13秒前
14秒前
14秒前
16秒前
水池完成签到,获得积分10
17秒前
发一篇JACS发布了新的文献求助10
17秒前
竹筏过海应助森sen采纳,获得30
18秒前
AHUAMM发布了新的文献求助10
18秒前
怕黑尔芙发布了新的文献求助200
19秒前
Nuts发布了新的文献求助10
19秒前
jianfei123发布了新的文献求助10
20秒前
avocadoQ完成签到 ,获得积分10
22秒前
完美世界应助Cindy采纳,获得50
22秒前
流年亦梦完成签到 ,获得积分10
22秒前
CipherSage应助星星采纳,获得10
24秒前
高分求助中
The late Devonian Standard Conodont Zonation 2000
Nickel superalloy market size, share, growth, trends, and forecast 2023-2030 2000
The Lali Section: An Excellent Reference Section for Upper - Devonian in South China 1500
Very-high-order BVD Schemes Using β-variable THINC Method 870
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 800
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
Fundamentals of Dispersed Multiphase Flows 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3254315
求助须知:如何正确求助?哪些是违规求助? 2896538
关于积分的说明 8293128
捐赠科研通 2565468
什么是DOI,文献DOI怎么找? 1393064
科研通“疑难数据库(出版商)”最低求助积分说明 652418
邀请新用户注册赠送积分活动 629894