scholarly journals Measuring nanoparticle-induced resonance energy transfer effect by electrogenerated chemiluminescent reactions

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 3861-3871
Author(s):  
Pilar Perez-Tejeda ◽  
Alberto Martínez-Delgado ◽  
Elia Grueso ◽  
Rosa M. Giráldez-Pérez

Electrogenerated chemiluminescence efficiencies, redox potentials, photoluminescent (quenching and coupling) effects, and AFM images for the [Ru(bpy)3]2+/Au@tiopronin system were determined in aqueous solutions of the gold nanoparticles at pH 7.0.

The Analyst ◽  
2020 ◽  
Vol 145 (22) ◽  
pp. 7412-7420
Author(s):  
Hui Liu ◽  
Hao Yin ◽  
TingTing Yang ◽  
HouCheng Ding ◽  
YongPing Dong

A label-free ECL sensor for thrombin was fabricated based on ECL resonance energy transfer occurred between ZnGa2O4/g-C3N4 and AuNP/GR nanocomposites, which revealed a new role of spinel-type semiconductor oxides in the fabrication of ECL sensors.


2020 ◽  
Vol 24 (05n07) ◽  
pp. 985-992
Author(s):  
Tawseef Ahmad Dar ◽  
Amir Sohel Bulbul ◽  
Muniappan Sankar ◽  
Karl M. Kadish

Meso-tetrapyrenylporphyrin and its metal (Co[Formula: see text], Cu[Formula: see text], Ni[Formula: see text] and Zn[Formula: see text]) complexes were synthesized, characterized and studied for their spectral, electrochemical and energy transfer properties. DFT optimization was carried out to gain an insight into the interactions between the porphyrin [Formula: see text]-system and the pyrenyl substituents. The pyrenyl substituents and the porphyrin core remain essentially orthogonal to each other in both the free base and the metallated porphyrins. Redox potentials of the pyrenylporphyrins are marginally shifted as compared to their corresponding phenyl derivatives. Förster resonance energy transfer (FRET) studies were carried out in toluene for free-base pyrenylporphyrin and its Zn(II) complex. Since pyrene is a good donor, an efficient energy transfer from pyrene (D) to the porphyrin core (A) on the order of 80–85% was observed for these two compounds. It was observed that energy transfer occurs mainly via ”through-bond” (TB) interaction rather than ”through-space” (TS) interaction.


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