PMID- 31310956 OWN - NLM STAT- MEDLINE DCOM- 20200211 LR - 20200211 IS - 1873-3557 (Electronic) IS - 1386-1425 (Linking) VI - 223 DP - 2019 Dec 5 TI - Turn-on detection of MicroRNA155 based on simple UCNPs-DNA-AuNPs luminescence energy transfer probe and duplex-specific nuclease signal amplification. PG - 117345 LID - S1386-1425(19)30735-8 [pii] LID - 10.1016/j.saa.2019.117345 [doi] AB - A novel luminescence energy transfer (LET) probe for detection of tumor related microRNAs using NaGdF(4):Yb,Er@NaYF(4) upconversion nanoparticles (UCNPs) as energy donors and gold nanoparticles (AuNPs) as energy acceptors was developed. Using the double modified complementary DNA sequences of microRNA155 (miRNA155) as a bridge, NaGdF(4):Yb,Er@NaYF(4) UCNPs and AuNPs were conjugated to form NaGdF(4):Yb,Er@NaYF(4) UCNPs-DNA-AuNPs nanocomplexes (UCNPs-DNA-AuNPs) probe. The energy transfer would occur when the distance between donor and acceptor gets closer. In the presence of target miRNA155, DNA-RNA heteroduplexes appeared as product, but the luminescence intensity was not changed obviously. In the existence of duplex-specific nuclease (DSN), DSN could hydrolyze the DNA strand of DNA-RNA heteroduplexes, the bridge linked NaGdF(4):Yb,Er@NaYF(4) UCNPs and AuNPs was destroyed, which induced that the quenched luminescence intensity was recovered and RNA was released. The released miRNA155 could react with another UCNPs-DNA-AuNPs probe to form DNA-RNA heteroduplexes again. This cyclic reaction generates an amplification of luminescence signal for quantitative detection of miRNA155. Under the illumination of 980 nm laser, the concentration ranges from 0.1 nM to 15 nM and the detection of limits was 0.045 nM for detection of miRNA155. Moreover, the UCNPs-DNA-AuNPs probe was used in quantify miRNA155 in cell lysates with satisfactory results. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Lu, Yunyun AU - Lu Y AD - Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China. FAU - Wang, Lun AU - Wang L AD - Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China. Electronic address: wanglun@mail.ahnu.edu.cn. FAU - Chen, Hongqi AU - Chen H AD - Anhui Key Laboratory of Chemo-Biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China. Electronic address: hq80chen@mail.ahnu.edu.cn. LA - eng PT - Journal Article DEP - 20190709 PL - England TA - Spectrochim Acta A Mol Biomol Spectrosc JT - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JID - 9602533 RN - 0 (MIRN155 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (Nucleic Acid Heteroduplexes) RN - 7440-57-5 (Gold) RN - EC 3.1.- (Endonucleases) SB - IM MH - Endonucleases/*metabolism MH - *Energy Transfer MH - Fluorescence Resonance Energy Transfer MH - Gold/*chemistry MH - Humans MH - K562 Cells MH - *Luminescence MH - Metal Nanoparticles/*chemistry/ultrastructure MH - MicroRNAs/genetics/*metabolism MH - Nucleic Acid Heteroduplexes/*metabolism MH - Particle Size OTO - NOTNLM OT - Detection OT - Duplex-specific nuclease OT - Gold nanoparticles OT - Luminescence energy transfer OT - MicroRNA155 OT - Upconversion nanoparticles EDAT- 2019/07/17 06:00 MHDA- 2020/02/12 06:00 CRDT- 2019/07/17 06:00 PHST- 2019/02/01 00:00 [received] PHST- 2019/06/14 00:00 [revised] PHST- 2019/07/07 00:00 [accepted] PHST- 2019/07/17 06:00 [pubmed] PHST- 2020/02/12 06:00 [medline] PHST- 2019/07/17 06:00 [entrez] AID - S1386-1425(19)30735-8 [pii] AID - 10.1016/j.saa.2019.117345 [doi] PST - ppublish SO - Spectrochim Acta A Mol Biomol Spectrosc. 2019 Dec 5;223:117345. doi: 10.1016/j.saa.2019.117345. Epub 2019 Jul 9.