Integrating dye-intercalated DNA dendrimers with electrospun nanofibers: a new fluorescent sensing platform for nucleic acids, proteins, and cells

2015 ◽  
Vol 3 (17) ◽  
pp. 3541-3547 ◽  
Author(s):  
Huaming Wang ◽  
Wei Tang ◽  
Hejia Wei ◽  
Yan Zhao ◽  
Shichao Hu ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Related Species ◽  
Electrospun Nanofibers ◽  
Fluorescent Dye ◽  
Fluorescent Sensing ◽  
Sensing Platform

A fluorescent dye-intercalated DNA dendrimer probe was integrated with electrospun nanofibers to create an amplified sensing platform for disease-related species.

scholarly journals A multicolor and ratiometric fluorescent sensing platform for metal ions based on arene–metal-ion contact

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Anna Kanegae ◽  
Yusuke Takata ◽  
Ippei Takashima ◽  
Shohei Uchinomiya ◽  
Ryosuke Kawagoe ◽  
...  
Keyword(s):  
Metal Ions ◽  
Metal Ion ◽  
Near Infrared ◽  
Molecular Design ◽  
Theoretical Calculations ◽  
Probe Design ◽  
One Pot ◽  
Fluorescent Sensing ◽  
Sensing Platform ◽  
Ratiometric Detection

AbstractDespite continuous and active development of fluorescent metal-ion probes, their molecular design for ratiometric detection is restricted by the limited choice of available sensing mechanisms. Here we present a multicolor and ratiometric fluorescent sensing platform for metal ions based on the interaction between the metal ion and the aromatic ring of a fluorophore (arene–metal-ion, AM, coordination). Our molecular design provided the probes possessing a 1,9-bis(2′-pyridyl)-2,5,8-triazanonane as a flexible metal ion binding unit attached to a tricyclic fluorophore. This architecture allows to sense various metal ions, such as Zn(II), Cu(II), Cd(II), Ag(I), and Hg(II) with emission red-shifts. We showed that this probe design is applicable to a series of tricyclic fluorophores, which allow ratiometric detection of the metal ions from the blue to the near-infrared wavelengths. X-ray crystallography and theoretical calculations indicate that the coordinated metal ion has van der Waals contact with the fluorophore, perturbing the dye’s electronic structure and ring conformation to induce the emission red-shift. A set of the probes was useful for the differential sensing of eight metal ions in a one-pot single titration via principal component analysis. We also demonstrate that a xanthene fluorophore is applicable to the ratiometric imaging of metal ions under live-cell conditions.

An efficient fluorescent sensing platform for biomolecules based on fenton reaction triggered molecular beacon cleavage strategy

2013 ◽  
Vol 41 ◽  
pp. 442-445 ◽  
Author(s):  
Rong Hu ◽  
Ya-Ru Liu ◽  
Xiao-Bing Zhang ◽  
Weihong Tan ◽  
Guo-Li Shen ◽  
...  
Keyword(s):  
Fenton Reaction ◽  
Molecular Beacon ◽  
Fluorescent Sensing ◽  
Sensing Platform

CeO2 Nanowire-BODIPY-Adenosine Triphosphate Fluorescent Sensing Platform for Highly Specific and Sensitive Detection of Arsenate

2018 ◽  
Vol 90 (24) ◽  
pp. 14507-14513 ◽  
Author(s):  
Lili Tong ◽  
Xiuxiu Wang ◽  
Wen Gao ◽  
Zhenhua Liu ◽  
Zhenzhen Chen ◽  
...  
Keyword(s):  
Adenosine Triphosphate ◽  
Sensitive Detection ◽  
Fluorescent Sensing ◽  
Sensing Platform

Graphdiyne-Based One-Step DNA Fluorescent Sensing Platform for the Detection of Mycobacterium tuberculosis and Its Drug-Resistant Genes

2019 ◽  
Vol 11 (39) ◽  
pp. 35622-35629 ◽  
Author(s):  
Fan Chang ◽  
Lijun Huang ◽  
Chaozhong Guo ◽  
Guoming Xie ◽  
Jiaqiang Li ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Drug Resistant ◽  
Fluorescent Sensing ◽  
Resistant Genes ◽  
Sensing Platform ◽  
One Step

scholarly journals Ultra-thin metal-organic framework nanoribbons

2019 ◽  
Vol 7 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Bingqing Wang ◽  
Meiting Zhao ◽  
Liuxiao Li ◽  
Ying Huang ◽  
Xiao Zhang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Nanometer Scale ◽  
Proof Of Concept ◽  
Fluorescent Sensing ◽  
Sensing Platform ◽  
Sensitivity And Selectivity ◽  
Metal Organic ◽  
Structure Engineering ◽  
General Method

Abstract Structure engineering of metal-organic frameworks (MOFs) at the nanometer scale is attracting increasing interest due to their unique properties and new functions that normally cannot be achieved in bulk MOF crystals. Here, we report the preparation of ultra-thin MOF nanoribbons (NRBs) by using metal-hydroxide nanostructures as the precursors. Importantly, this general method can be used to synthesize various kinds of ultra-thin MOF NRBs, such as MBDC (M = Co, Ni; BDC = 1,4-benzenedicarboxylate), NiCoBDC, CoTCPP (TCPP = tetrakis(4-carboxyphenyl)porphyrin) and MIL-53(Al) NRBs. As a proof-of-concept application, the as-prepared ultra-thin CoBDC NRBs have been successfully used as a fluorescent sensing platform for DNA detection, which exhibited excellent sensitivity and selectivity. The present strategy might open an avenue to prepare MOF nanomaterials with new structures and unique properties for various promising applications.

Cobalt (II) complex as a fluorescent sensing platform for the selective and sensitive detection of triketone HPPD inhibitors

2021 ◽  
Vol 404 ◽  
pp. 124015 ◽  
Author(s):  
Lu Li ◽  
Shuang Gao ◽  
Liu Yang ◽  
Yu-Long Liu ◽  
Ping Li ◽  
...  
Keyword(s):  
Sensitive Detection ◽  
Fluorescent Sensing ◽  
Sensing Platform

Nitrogen-doped carbon dots derived from electrospun carbon nanofibers for Cu(ii) ion sensing

2019 ◽  
Vol 43 (4) ◽  
pp. 1812-1817 ◽  
Author(s):  
Yang Li ◽  
Zhicheng Liu ◽  
Lu Bai ◽  
Yaqing Liu
Keyword(s):  
Carbon Nanofibers ◽  
Carbon Dots ◽  
Nitrogen Doped ◽  
Fluorescent Sensing ◽  
Ion Sensing ◽  
Sensing Platform ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dots were synthesized via the chemical breakdown of electrospun polyacrylonitrile-based carbon nanofibers and employed as a fluorescent sensing platform.

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