Comparative study of human steroid 5α-reductase isoforms in prostate and female breast skin tissues: sensitivity to inhibition by finasteride and epristeride

Ranjan, Mala; Diffley, Penny E.; Stephen, G; Price, David E.; Walton, Terence J.; Newton, Russell P.

doi:10.1016/s0024-3205(02)01627-2

Cited by 38 publications

(8 citation statements)

References 42 publications

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“…Figure 7 depicts the Stern-Volmer plot of fluorescence quenching of CQDs with different concentrations of quencher at four different temperatures i. e. 299, 304, 309, 314 K respectively. As per the reports, the plot F 0 / F versus concentration of quencher [Q] should be linear for the quenching type of static or dynamic [52]. The plot showing the good linearity within the investigated concentrations of quencher and agrees with Stern-Volmer equation.…”

Section: Fluorescence Quenching Mechanismsupporting

confidence: 74%

Spectroscopic Investigation of Interaction Between Carbon Quantum Dots and D-Penicillamine Capped Gold Nanoparticles

et al. 2015

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This study reports the interaction and energy transfer between fluorescent carbon quantum dots (CQDs) and D-Penicillamine capped gold nanoparticles (DPA-AuNPs). The CQDs was synthesized by a simple chemical oxidation method at room temperature. The prepared CQDs shows a strong fluorescence at λ em = 430 nm when excited at λ ex = 320 nm. The interaction of CQDs with DPA-AuNPs was characterized by fluorescence spectroscopy, Transmission Electron Microscopy (TEM) study and Dynamic Light Scattering (DLS) techniques. The fluorescence study shows the continuous quenching in the fluorescence intensity of CQDs in presence of increasing concentrations of DPA-AuNPs. The change in fluorescence spectra of CQDs in presence of increasing concentration of DPA-AuNPs and quenching are suggestive of a rapid adsorption of CQDs on the surface of DPA-AuNPs. The K sv , K, K q and n values were calculated and results indicated that the dynamic type of quenching takes place. The distance between donor and acceptor (r) is 6.07 nm which supports the energy transfer by Fluorescence Resonance Energy Transfer (FRET) phenomenon. The plausible mechanism for FRET is also discussed.

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Section: Fluorescence Quenching Mechanismsupporting

confidence: 74%

Spectroscopic Investigation of Interaction Between Carbon Quantum Dots and D-Penicillamine Capped Gold Nanoparticles

et al. 2015

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“…23,28,29 In certain concentrations, there is linear relationship between F 0 /F and [Pc] (Stern-Volmer curve) if the quenching type is single static or dynamic quenching. 30 The proposed maximum value for dynamic quenching process at room temperature is 2:0 Â 10 10 M À1 s À1 , 31 while k q in this study was found to be 10 13 M À1 s À1 . The results indicated that the°uorescence quenching of BSA and HSA by AlPc was a static quenching process.…”

Section: A±nity Measurementsmentioning

confidence: 47%

Spectroscopic analysis of the interaction between tetra-(p-sulfoazophenyl-4-aminosulfonyl)-substituted aluminum (III) phthalocyanines and serum albumins

Zheng

Lin

et al. 2017

J. Innov. Opt. Health Sci.

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The binding interaction between tetra-(p-sulfoazophenyl-4-aminosulfonyl)-substituted aluminum (III) phthalocyanine (AlPc), and two-serum albumins (bovine serum albumin (BSA) and human serum albumin (HSA)) has been investigated. AlPc could quench the intrinsic°uorescence of BSA and HSA through a static quenching process. The primary and secondary binding sites of AlPc on BSA were domain I and III of BSA. The primary binding site of AlPc on HSA was domain I, and the secondary binding sites of AlPc on HSA were found at domains I and II. Our results suggest that AlPc readily interact with BSA and HSA implying that the amphiphilic substituents AlPc may contribute to their transportation in the blood.

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“…3(A) that for neutral pH, the nature of curve is linear within the studied concentration. This suggests that a single type of quenching, either static or dynamic quenching, exists at neutral pH [22]. But for the 3.5 and 9.5 pH the Stern-Volmer plots there is an upward curvature.…”

Section: Effect Of Phmentioning

confidence: 95%

Effect of temperature and pH on interaction between bovine serum albumin and cetylpyridinium bromide: Fluorescence spectroscopic approach

Mote¹,

Han²,

Patil³

et al. 2010

Journal of Luminescence

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Comparative study of human steroid 5α-reductase isoforms in prostate and female breast skin tissues: sensitivity to inhibition by finasteride and epristeride

Cited by 38 publications

References 42 publications

Spectroscopic Investigation of Interaction Between Carbon Quantum Dots and D-Penicillamine Capped Gold Nanoparticles

Spectroscopic Investigation of Interaction Between Carbon Quantum Dots and D-Penicillamine Capped Gold Nanoparticles

Spectroscopic analysis of the interaction between tetra-(p-sulfoazophenyl-4-aminosulfonyl)-substituted aluminum (III) phthalocyanines and serum albumins

Effect of temperature and pH on interaction between bovine serum albumin and cetylpyridinium bromide: Fluorescence spectroscopic approach

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