PMID- 27453987 OWN - NLM STAT- MEDLINE DCOM- 20170206 LR - 20171024 IS - 1873-4235 (Electronic) IS - 0956-5663 (Linking) VI - 86 DP - 2016 Dec 15 TI - Synthesis and sensing integration: A novel enzymatic reaction modulated Nanoclusters Beacon (NCB) "Illumination" strategy for label-free biosensing and logic gate operation. PG - 588-594 LID - S0956-5663(16)30640-6 [pii] LID - 10.1016/j.bios.2016.07.011 [doi] AB - A novel fluorescent label-free "turn-on" NAD(+) and adenosine triphosphate (ATP) biosensing strategy is proposed by fully exploiting ligation triggered Nanocluster Beacon (NCB). In the presence of the target, the split NCB was brought to intact, which brought the C-rich sequence and enhancer sequence in close proximity resulting in the lightening of dark DNA/AgNCs ("On" mode). Further application was presented for logic gate operation and aptasensor construction. The feasibility was investigated by Ultraviolet-visible spectroscopy (UV-vis), Fluorescence, lifetime and High Resolution Transmission Electron Microscopy (HRTEM) etc. The strategy displayed good performance in the detection of NAD(+) and ATP, with the detection limit of 0.002nM and 0.001mM, the linear range of 10-1000nM and 0.003-0.01mM, respectively. Due to the DNA/AgNCs as fluorescence reporter, the completely label-free fluorescent strategy boasts the features of simplicity and low cost, and showing little reliance on the sensing environment. Meanwhile, the regulation by overhang G-rich sequence not relying on Forster energy transfer quenching manifests the high signal-to-background ratios (S/B ratios). This method not only provided a simple, economical and reliable fluorescent NAD(+) assay but also explored a flexible G-rich sequence regulated NCB probe for the fluorescent biosensors. Furthermore, this sensing mode was expanded to the application of a logic gate design, which exhibited a high performance for not only versatile biosensors construction but also for molecular computing application. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Hong, Lu AU - Hong L AD - Key Laboratory of Functional Molecular Solids, Wuhu, Anhui Province, 241000 PR China; College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Normal University, Wuhu, 241000 PR China; Key Laboratory of Chem-Biosensing, Wuhu, Anhui Province, 241000 PR China. FAU - Zhou, Fu AU - Zhou F AD - Key Laboratory of Functional Molecular Solids, Wuhu, Anhui Province, 241000 PR China; College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Normal University, Wuhu, 241000 PR China; Key Laboratory of Chem-Biosensing, Wuhu, Anhui Province, 241000 PR China. FAU - Wang, Guangfeng AU - Wang G AD - Key Laboratory of Functional Molecular Solids, Wuhu, Anhui Province, 241000 PR China; College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Normal University, Wuhu, 241000 PR China; Key Laboratory of Chem-Biosensing, Wuhu, Anhui Province, 241000 PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082 PR China. Electronic address: wangyuz@mail.ahnu.edu.cn. FAU - Zhang, Xiaojun AU - Zhang X AD - Key Laboratory of Functional Molecular Solids, Wuhu, Anhui Province, 241000 PR China; College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Normal University, Wuhu, 241000 PR China; Key Laboratory of Chem-Biosensing, Wuhu, Anhui Province, 241000 PR China. LA - eng PT - Journal Article DEP - 20160707 PL - England TA - Biosens Bioelectron JT - Biosensors & bioelectronics JID - 9001289 RN - 0 (Nanoconjugates) RN - 0U46U6E8UK (NAD) RN - 3M4G523W1G (Silver) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - 9007-49-2 (DNA) SB - IM MH - Adenosine Triphosphate/*analysis MH - Computers, Molecular MH - DNA/*chemistry/radiation effects MH - Equipment Design MH - Equipment Failure Analysis MH - Feasibility Studies MH - Lighting/instrumentation MH - Microscopy, Fluorescence/*instrumentation MH - NAD/*analysis MH - Nanoconjugates/*chemistry/radiation effects MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Signal Processing, Computer-Assisted/*instrumentation MH - Silver/chemistry MH - Staining and Labeling OTO - NOTNLM OT - Ag nanocluster OT - Label-free OT - Logic gate OT - NAD(+) OT - Nanoclusters Beacon (NCB) EDAT- 2016/07/28 06:00 MHDA- 2017/02/07 06:00 CRDT- 2016/07/26 06:00 PHST- 2016/05/18 00:00 [received] PHST- 2016/06/27 00:00 [revised] PHST- 2016/07/06 00:00 [accepted] PHST- 2016/07/26 06:00 [entrez] PHST- 2016/07/28 06:00 [pubmed] PHST- 2017/02/07 06:00 [medline] AID - S0956-5663(16)30640-6 [pii] AID - 10.1016/j.bios.2016.07.011 [doi] PST - ppublish SO - Biosens Bioelectron. 2016 Dec 15;86:588-594. doi: 10.1016/j.bios.2016.07.011. Epub 2016 Jul 7.