Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots.
Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots.
复制标题
DOI:
10.3390/ma15165760
复制
发表时间:
2022-08-20
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
Early-stage pancreatic cancer remains challenging to detect, leading to a poor five-year patient survival rate. This obstacle necessitates the development of early detection approaches based on novel technologies and materials. In this work, the presence of a specific pancreatic cancer-derived miRNA (pre-miR-132) is detected using the fluorescence properties of biocompatible nitrogen-doped graphene quantum dots (NGQDs) synthesized using a bottom-up approach from a single glucosamine precursor. The sensor platform is comprised of slightly positively charged (1.14 0.36 mV) NGQDs bound via stacking and/or electrostatic interactions to the negatively charged (−22.4 6.00 mV) bait ssDNA; together, they form a complex with a 20 nm average size. The NGQDs’ fluorescence distinguishes specific single-stranded DNA sequences due to bait–target complementarity, discriminating them from random control sequences with sensitivity in the micromolar range. Furthermore, this targetability can also detect the stem and loop portions of pre-miR-132, adding to the practicality of the biosensor. This non-invasive approach allows cancer-specific miRNA detection to facilitate early diagnosis of various forms of cancer.
登录
查看更多内容
影响因子:
4.6
作者:
Ghafary SM;Nikkhah M;Hatamie S;Hosseinkhani S
通讯作者:
Hosseinkhani S
影响因子:
14.9
作者:
Chen C;Ridzon DA;Broomer AJ;Zhou Z;Lee DH;Nguyen JT;Barbisin M;Xu NL;Mahuvakar VR;Andersen MR;Lao KQ;Livak KJ;Guegler KJ
通讯作者:
Guegler KJ
影响因子:
11.1
作者:
Mangolini A;Ferracin M;Zanzi MV;Saccenti E;Ebnaof SO;Poma VV;Sanz JM;Passaro A;Pedriali M;Frassoldati A;Querzoli P;Sabbioni S;Carcoforo P;Hollingsworth A;Negrini M
通讯作者:
Negrini M
影响因子:
5.8
作者:
Campbell, Elizabeth;Hasan, Md. Tanvir;Naumov, Anton V.
通讯作者:
Naumov, Anton V.
影响因子:
6.1
作者:
Ma, Y.;Chen, A. Y.;Li, Y.
通讯作者:
Li, Y.