Ultrasensitive detection alkaline phosphatase activity using 3-aminophenylboronic acid functionalized gold nanoclusters
Ultrasensitive detection alkaline phosphatase activity using 3-aminophenylboronic acid functionalized gold nanoclusters
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使用 3-氨基苯硼酸功能化金纳米簇超灵敏检测碱性磷酸酶活性
DOI:
10.1016/j.snb.2018.10.083
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发表时间:
2019-02
期刊:
影响因子:
--
通讯作者:
Su Xingguang
中科院分区:
文献类型:
--
作者:
Liu Qing;Li Hongxia;Jin Rui;Li Ning;Yan Xu;Su Xingguang
Herein, a fluorescent bi-enzyme sensing platform for ultrasensitive detection of alkaline phosphatase activity was developed based on 3-aminophenylboronic acid functionalized gold nanoclusters (APBA-Au NCs). Alkaline phosphatase (ALP) can catalyze hydrolysis of phenyl phosphate to phenol, which can be subsequently hydroxylated to generate catechol in the presence of tyrosinase (TYR). Due to the special covalent combination between the catechol and boric acid group, the five-membered cyclic esters can be formed on the ligands of APBA-Au NCs, leading to the fluorescence quenching of the Au NCs. Thus, according to the change of fluorescence signal, the proposed biosensor can be utilized to ultrasensitive detection ALP. Under the optimal condition, there exhibited good linear relationships between fluorescence intensity change of APBA-Au NCs and the concentration of ALP in the range of 0.02–2.0 U/L. The detection limits reached 0.005 U/L. The developed strategy was employed to monitor enzyme activity in real samples with satisfactory results obtained, illustrating the potential application of this biosensor.
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影响因子:
4.1
作者:
Junsheng Chen;Bin Yang;Chuanshuai Li;Kaibo Zheng;K. Žídek;T. Pullerits
通讯作者:
Junsheng Chen;Bin Yang;Chuanshuai Li;Kaibo Zheng;K. Žídek;T. Pullerits
影响因子:
9.5
作者:
Tan, Yi;Zhang, Ling;Sun, Hongyan
通讯作者:
Sun, Hongyan
影响因子:
7.4
作者:
Xu Yan;Yang Song;Chengzhou Zhu;Hongxia Li;Dan Du;X. Su;Yuehe Lin
通讯作者:
Xu Yan;Yang Song;Chengzhou Zhu;Hongxia Li;Dan Du;X. Su;Yuehe Lin
DOI:
10.1088/0953-8984/28/25/254001
发表时间:
2016-05
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
Junsheng Chen;K. Žídek;M. Abdellah;M. Al-Marri;Kaibo Zheng;T. Pullerits
通讯作者:
Junsheng Chen;K. Žídek;M. Abdellah;M. Al-Marri;Kaibo Zheng;T. Pullerits
影响因子:
9.5
作者:
Song, Zhegang;Kwok, Ryan T. K.;Tang, Ben Zhong
通讯作者:
Tang, Ben Zhong