Photo-induced resonance energy transfer and nonlinear optical response in ball-type phthalocyanine conjugated to semiconductor and graphene quantum dots

2018 ◽  
Vol 42 (8) ◽  
pp. 6040-6050 ◽  
Author(s):  
Njemuwa Nwaji ◽  
Ojodomo J. Achadu ◽  
Tebello Nyokong
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Nonlinear Optical ◽  
Graphene Quantum Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Semiconductor Quantum Dots ◽  
Nonlinear Optical Response ◽  
Optical Performance ◽  
Covalently Linked

Ball-type zinc and gallium phthalocyanines were covalently linked to graphene and semiconductor quantum dots resulting in enhanced triplet parameters and nonlinear optical performance.

Daunomycin delivery by ultrasmall graphene quantum dots to DNA duplexes: understanding the dynamics by resonance energy transfer

2020 ◽  
Vol 8 (42) ◽  
pp. 9756-9763
Author(s):  
Riya Sinha ◽  
Pradipta Purkayastha
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Graphene Quantum Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Dna Duplexes ◽  
Π Stacking

Crystalline graphene quantum dots are shown to carry daunomycin to DNA via π–π stacking with the planar anthracenyl moiety of the drug.

Resonance Energy Transfer Improves the Biological Function of Bacteriorhodopsin within a Hybrid Material Built from Purple Membranes and Semiconductor Quantum Dots

Nano Letters ◽  
2010 ◽  
Vol 10 (7) ◽  
pp. 2640-2648 ◽  
Author(s):  
Aliaksandra Rakovich ◽  
Alyona Sukhanova ◽  
Nicolas Bouchonville ◽  
Evgeniy Lukashev ◽  
Vladimir Oleinikov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Hybrid Material ◽  
Biological Function ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Semiconductor Quantum Dots ◽  
Purple Membranes

scholarly journals Bioluminescence-Based Energy Transfer Using Semiconductor Quantum Dots as Acceptors

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2909 ◽  
Author(s):  
Anirban Samanta ◽  
Igor L. Medintz
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Organic Dyes ◽  
Stokes Shift ◽  
Resonance Energy Transfer ◽  
Fluorescence Emission ◽  
Resonance Energy ◽  
Semiconductor Quantum Dots ◽  
Renilla Luciferase ◽  
Bioluminescent Protein

Bioluminescence resonance energy transfer (BRET) is the non-radiative transfer of energy from a bioluminescent protein donor to a fluorophore acceptor. It shares all the formalism of Förster resonance energy transfer (FRET) but differs in one key aspect: that the excited donor here is produced by biochemical means and not by an external illumination. Often the choice of BRET source is the bioluminescent protein Renilla luciferase, which catalyzes the oxidation of a substrate, typically coelenterazine, producing an oxidized product in its electronic excited state that, in turn, couples with a proximal fluorophore resulting in a fluorescence emission from the acceptor. The acceptors pertinent to this discussion are semiconductor quantum dots (QDs), which offer some unrivalled photophysical properties. Amongst other advantages, the QD’s large Stokes shift is particularly advantageous as it allows easy and accurate deconstruction of acceptor signal, which is difficult to attain using organic dyes or fluorescent proteins. QD-BRET systems are gaining popularity in non-invasive bioimaging and as probes for biosensing as they don’t require external optical illumination, which dramatically improves the signal-to-noise ratio by avoiding background auto-fluorescence. Despite the additional advantages such systems offer, there are challenges lying ahead that need to be addressed before they are utilized for translational types of research.

Sign in / Sign up

Export Citation Format

Share Document