[HTML][HTML] Inner filter effect in fluorescence spectroscopy: As a problem and as a solution

SK Panigrahi, AK Mishra - Journal of Photochemistry and Photobiology C …, 2019 - Elsevier
This article discusses three aspects of inner filter effect (IFE) in fluorescence spectroscopy.(i)
First, IFE as undesirable in fluorescence measurements: IFE results in non-linear …

Analysis of various solid samples by synchronous fluorescence spectroscopy and related methods: A review

A Samokhvalov - Talanta, 2020 - Elsevier
This critical Review covers the literature reports on analysis of different types of solid
samples by the synchronous fluorescence spectroscopy (SFS) and its varieties, which …

Fast one-pot microwave-assisted green synthesis of highly fluorescent plant-inspired S, N-self-doped carbon quantum dots as a sensitive probe for the antiviral drug …

NA Qandeel, AA El-Masry, M Eid, MA Moustafa… - Analytica Chimica …, 2023 - Elsevier
In this study, we report a one-pot, green, cost-efficient, and fast synthesis of plant-based
sulfur and nitrogen self-co-doped carbon quantum dots (S, N-CQDs). By 4-min microwave …

A molecular imprinted fluorescence sensor based on carbon quantum dots for selective detection of 4-nitrophenol in aqueous environments

K Wang, L Tan, Y Zhang, D Zhang, N Wang… - Marine Pollution …, 2023 - Elsevier
Abstract P-nitrophenol (4-NP) is the most persistent and highly toxic species among
nitrophenol. In this work, a novel fluorescent probe for the detection of 4-NP in aqueous …

Graphene quantum dots as a nanoprobe for analysis of o-and p-nitrophenols in environmental water adopting conventional fluorometry and smartphone image …

R El-Shaheny, S Yoshida, T Fuchigami - Microchemical Journal, 2020 - Elsevier
A selective, sensitive, and safe nanoprobe was developed for detection of the endocrine
disruptors; o-and p-nitrophenols (ONP and PNP, respectively) based on blue luminescent …

Detection of trace tetracycline in fish via synchronous fluorescence quenching with carbon quantum dots coated with molecularly imprinted silica

J Yang, ZZ Lin, AZ Nur, Y Lu, MH Wu, J Zeng… - … Acta Part A: Molecular …, 2018 - Elsevier
A novel fluorescence-based sensor combining synchronous fluorescence spectroscopy
(SFS) with molecularly imprinted polymers (MIPs) was fabricated with reverse …

Unconventional steady-state fluorescence spectroscopy as an analytical technique for analyses of complex-multifluorophoric mixtures

K Kumar, M Tarai, AK Mishra - TrAC Trends in Analytical Chemistry, 2017 - Elsevier
Over the years mainly three unconventional fluorescence techniques, Excitation–emission
matrix fluorescence (EEMF), synchronous fluorescence spectroscopy (SFS), and total …

Rapid in situ measurements of algal cell concentrations using an artificial neural network and single-excitation fluorescence spectrometry

JY Liu, LH Zeng, ZH Ren, TM Du, X Liu - Algal Research, 2020 - Elsevier
Accurate measurements of the algal cell concentration are very important in microalgae
culturing and ecological monitoring. To realize an automatic, in situ measurement of the cell …

Study on the dependence of fluorescence intensity on optical density of solutions: the use of fluorescence observation field for inner filter effect corrections

SK Panigrahi, AK Mishra - Photochemical & Photobiological Sciences, 2019 - Springer
In this study, we report the identification of absorbance value of an analyte at the excitation
wavelength that corresponds to the maximum of the observed fluorescence intensity …

Turn-off fluorescence of S, N-doped carbon dots for determination of two nitro-containing drugs in dosage forms and human plasma

ME El Sharkasy, MM Tolba, F Belal, MI Walash… - … Acta Part A: Molecular …, 2023 - Elsevier
This study describes the development of an environmentally-friend optical nanosensor for
the rapid spectrofluorimetric assessment of two nitro-compounds, namely nitrofurantoin and …