Interaction of Tetrandrine with Human Serum Albumin: a Fluorescence Quenching Study

Binding Interaction of Captopril with Metal Ions: A Fluorescence Quenching Study

“…If the K sv decreased with increased temperature, it could be concluded that the quenching process was static rather than dynamic. 13,14 Static quenching implies either the existence of a sphere of effective quenching or the formation of a ground state non-fluorescent complex, whereas collisional or dynamic quenching involves the collision and subsequent formation of a transient complex between an excited state fluorophore and a ground state quencher. The excited state complex dissociates upon radiative and non-radiative deactivation.…”

Study on the fluorescence resonance energy transfer between CdS quantum dots and Eosin Y

“…By fitting the data to eqn (4), r is found to be 4.36 nm, which is much smaller than the value of 7 nm required for energy transfer to occur (18,19), indicating that the energy transfer from CdS QDs to Eosin Y has high probability. These results also confirm that a FRET process occurs between CdS QDs and Eosin Y.…”

“…where the spatial orientation factor K 2 and the refraction index n 0 are accepted as 2/3 and 1.336, respectively (18,19). ΦD is the quantum yield of CdS QDs, measured as 12.3% using Rhodamine 6G as the reference standard (20), and J (λ) is the spectral overlap integral which can be calculated from eqn (6):…”

Interaction between melamine and bovine serum albumin: Spectroscopic approach and density functional theory

“…Tyr and Trp are highly sensitive to the polarity of microenvironment and also display the possible shift in fluorescence emission wavelength maximum k max . A blue shift of k max means the amino acid residues are located in a more hydrophobic environment and a red shift of k max implies the amino acid residues are in a polar environment [28,29]. The results show the synchronous fluorescence spectra of Tyr and Trp have no obvious changes (Figure omitted).…”