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- W4387608401 abstract "Abstract In this work, Sudan Blue II dye is successfully grafted on the walls of chloro-functionalised MCM-48. The synthesized probe selectively detect Cu 2+ ion by fluorescence spectroscopy. The probe designated as SB@modMCM-48 was characterized by various spectroscopic methods including FT-IR, SEM, EDX and N 2 adsorption-desorption isotherm, etc. The fluorescent intensity of the probe is quenched by 14 times in presence of Cu 2+ ion. The fluorescent detection is reversible, selective with low detection limits. The LOD and K a (association constant) was calculated to be 1.45 × 10 − 10 M and 5.38 × 10 7 M − 1 respectively with a linear range of detection. The addition of Cu 2+ ion to the probe solution also imparted a visual color change. Paper strip sensor was also developed for naked eye detection of Cu 2+ . The low LOD limits, binding stoichiometric constant, etc. point towards high affinity of Cu 2+ towards the nanosensor. Interestingly, the Cu 2+ :sensor complex selectively sense amino acid cysteine in its aqueous solution, with a limit of detection of 10.46 × 10 − 8 M." @default.
- W4387608401 created "2023-10-14" @default.
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- W4387608401 date "2023-10-13" @default.
- W4387608401 modified "2023-10-14" @default.
- W4387608401 title "Sudan Blue II Dye loaded modified MCM-48: Colorimetric, Paper Strip, and Fluorescent Sensor for Cu 2+ ion" @default.
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- W4387608401 doi "https://doi.org/10.21203/rs.3.rs-3421933/v1" @default.
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