scholarly journals Competition between Photoinduced Electron Transfer and Resonance Energy Transfer in an Example of Substituted Cytochrome c–Quantum Dot Systems

2021 ◽  
Vol 125 (13) ◽  
pp. 3307-3320
Author(s):  
Jakub Sławski ◽  
Rafał Białek ◽  
Gotard Burdziński ◽  
Krzysztof Gibasiewicz ◽  
Remigiusz Worch ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Cytochrome C ◽  
Quantum Dot ◽  
Photoinduced Electron Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy

A novel dual-switch fluorescent probe for Cr(iii) ion based on PET–FRET processes

The Analyst ◽  
2014 ◽  
Vol 139 (14) ◽  
pp. 3607-3613 ◽  
Author(s):  
Fangzhi Hu ◽  
Baozhan Zheng ◽  
Dongmei Wang ◽  
Maoping Liu ◽  
Juan Du ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Fluorescent Probe ◽  
Fluorescence Resonance Energy Transfer ◽  
Photoinduced Electron Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Sensing System ◽  
System P ◽  
Fluorescence Resonance

Two different strategies for photoinduced electron transfer (PET) and fluorescence resonance energy transfer (FRET) have been designed and combined into one sensing system.

A 3D pillared-layer metal–organic framework with fluorescence property for detection of nitroaromatic explosives

2019 ◽  
Vol 43 (2) ◽  
pp. 963-969 ◽  
Author(s):  
Qi Wang ◽  
Da Jun Liu ◽  
Li Li Cui ◽  
Xiao-Li Hu ◽  
Xin-Long Wang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Fluorescence Quenching ◽  
Photoinduced Electron Transfer ◽  
Metal Organic Framework ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Nitroaromatic Explosives ◽  
Luminescent Sensor ◽  
Metal Organic

A novel pillared-layer Cd-MOF was synthesized as luminescent sensor for detection of nitroaromatic explosives with highly selective and recyclable properties. The study also shows that the photoinduced electron transfer and resonance energy transfer were possible mechanisms of fluorescence quenching.

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

Towards Single-Molecule Diagnostics Using Microfluidic Manipulation and Quantum Dot Nanosensors

2007 ◽  
Author(s):  
Hsin-Chih Yeh ◽  
Christopher M. Puleo ◽  
Yi-Ping Ho ◽  
Tza-Huei Wang
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Single Molecule ◽  
Dna Sequences ◽  
Mutational Analysis ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Single Molecule Detection ◽  
Specific Analysis ◽  
Low Volume

In this report, we review several single-molecule detection (SMD) methods and newly developed nanocrystal-mediated single-fluorophore strategies for ultrasensitive and specific analysis of genomic sequences. These include techniques, such as quantum dot (QD)-mediated fluorescence resonance energy transfer (FRET) technology and dual-color fluorescence coincidence and colocalization analysis, which allow separation-free detection of low-abundance DNA sequences and mutational analysis of oncogenes. Microfluidic approaches developed for use with single-molecule detection to achieve rapid, low-volume, and quantitative analysis of nucleic acids, such as electrokinetic manipulation of single molecules and confinement of sub-nanoliter samples using microfluidic networks integrated with valves, are also discussed.

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