Quercetin spectrofluorometric quantification in aqueous media using different surfactants as fluorescence promoters

Alva-Ensastegui, J.C.; Palomar-Pardavé, M.; Romero-Romo, M.; Ramı́rez-Silva, Maria Teresa

doi:10.1039/c8ra01213j

Cited by 24 publications

(9 citation statements)

References 21 publications

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“…This was in conformity with the fluorescence emission spectra of quercetin when forming a complex with the neutral molecule, at which an emission peak at around 600 nm was observed. 73 Accordingly, the violet-red of the sample with bubbles under exposure of the 405 nm laser could be explained by the contribution of the quercetin either resided at the air/water interface of bubbles or attached at the binding site of albumin. Furthermore, the observed green colour in the image of samples with bubbles after centrifugation was given by free solvated quercetin, showing the bubbles' annihilabilities during centrifugation.…”

Section: Resultsmentioning

confidence: 99%

Utilizing polymer-conjugate albumin-based ultrafine gas bubbles in combination with ultra-high frequency radiations in drug transportation and delivery

Phan

et al. 2021

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Utilizing polymer-conjugate albumin-based ultrafine gas bubbles in combination with ultra-high frequency radiations in drug transportation and delivery

Phan

et al. 2021

RSC Adv.

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“…SDS is an anionic surfactant that formed micelles at a particular concentration, which known as critical micellar concentration (CMC) when it dispersed in water …”

Section: Resultsmentioning

confidence: 99%

“…SDS is an anionic surfactant that formed micelles at a particular concentration, which known as critical micellar concentration (CMC) when it dispersed in water. [19] Figure 2a shows the fluorescence spectra of NPBU, with increasing concentrations of SDS. NPBU in aqueous medium showed only one emission band at ∼ 325 nm, which could be because of ICT behaviour of the NPBU.…”

Section: Steady State Fluorescence Experimentsmentioning

confidence: 99%

Synthesis and Binding Affinity of Hydrophobic Tail Containing Naphthalene Derivatives with Different Type of Organized Media

Mani

Pandey²,

Tripathi

2020

ChemistrySelect

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In this article, we are introducing the synthesis of two naphthalene derivatives (NPBU (butyl 2‐(naphthalene‐2‐yl)acetate) and NPME (methyl 2‐(naphthalene‐2‐yl)acetate)) having different length of aliphatic tail. These two newly synthesized naphthalene derivative are used as a fluorophore to understand the binding interaction with surfactants (SDS (sodium dodecyl sulfate), CTAB (cetrimonium bromide) and Triton X‐100) and also with β‐CD (β‐cyclodextrin). Because of long hydrophobic tail, NPBU is more hydrophobic in nature and showed self‐aggregation properties in aqueous medium. Whereas, the short aliphatic tail containing NPME not showed any self‐aggregation property in an aqueous medium. Because of hydrophobicity NPBU could binds with the hydrophobic inner core of micelles of SDS, CTSB and Triton X‐100. NPBU also formed inclusion complex with inner hydrophobic cavity of β‐CD. However, because of low hydrophobicity NPME, could not able to binds with hydrophobic inner core of micelles and also it was not able to bind with hydrophobic cavity of β‐CD. The calculated CMC (critical micelle concentration) values of SDS, CTAB and Triton X‐100 by using NPBU fluorophore are ∼12 mM, ∼0.8 mM and ∼0.12 mM respectively. The NPME binds with β‐CD and formed inclusion complexes NPBU@β‐CD and calculated binding constant was 0.22 × 102 M−1. Thus this presented comparative study is showing the importance of a hydrophobic tail, attached to naphthalene molecule. The attachment of a long hydrophobic tail makes the fluorophore sensitive towards microenvironment of surfactants and make naphthalene molecules suitable for investigation of structure and dynamics of micellization of different types of surfactants.

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“…Because of this, they have higher self-correction accuracy and larger Stokes shifts (>150 nm) than traditional fluorophores, which helps to reduce interference caused by self-absorption and self-fluorescence [12]. Although natural flavonols are particularly suitable as fluorescence-based sensors and biological imaging agents [13,14], research in such applications is still in its infancy. Fluorescent nanoparticles with a 'core@shell' structure can be formed between redox active AIEgens and silver ions via redox reactions, thus solving the problem of fluorescence quenching caused by the fusion of traditional fluorophores and plasma precious metals.…”

Section: Introductionmentioning

confidence: 99%

Silver@quercetin Nanoparticles with Aggregation-Induced Emission for Bioimaging In Vitro and In Vivo

Xiao

et al. 2022

IJMS

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Fluorescent materials based on aggregation-induced emission luminogens (AIEgens) have unique advantages for in situ and real-time monitoring of biomolecules and biological processes because of their high luminescence intensity and resistance to photobleaching. Unfortunately, many AIEgens require time-consuming and expensive syntheses, and the presence of residual toxic reagents reduces their biocompatibility. Herein, silver@quercetin nanoparticles (Ag@QCNPs), which have a clear core–shell structure, were prepared by redox reaction of quercetin (QC), a polyphenolic compound widely obtained from plants, including those used as foods, and silver ions. Ag@QCNPs show both aggregation-induced luminescence and the distinct plasma scattering of silver nanoparticles, as well as good resistance to photobleaching and biocompatibility. The Ag@QCNPs were successfully used for cytoplasmic labeling of living cells and for computerized tomography imaging in tumor-bearing mice, demonstrating their potential for clinical applications.

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Quercetin spectrofluorometric quantification in aqueous media using different surfactants as fluorescence promoters

Abstract: Quercetin spectrofluorometric quantification was carried out in aqueous media using micelles of surfactants, namely: CTAB, SDS and TX100 as promoters of quercetin fluorescence and stability.

Cited by 24 publications

References 21 publications

Utilizing polymer-conjugate albumin-based ultrafine gas bubbles in combination with ultra-high frequency radiations in drug transportation and delivery

Utilizing polymer-conjugate albumin-based ultrafine gas bubbles in combination with ultra-high frequency radiations in drug transportation and delivery

Synthesis and Binding Affinity of Hydrophobic Tail Containing Naphthalene Derivatives with Different Type of Organized Media

Silver@quercetin Nanoparticles with Aggregation-Induced Emission for Bioimaging In Vitro and In Vivo

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