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Article
Synthesis of yellow fluorescent carbon dots and their application to the determination of chromium(III) with selectivity improved by pH tuning
Carbon dots with yellow fluorescence (y-CDs) were synthesized from sucrose by acid carbonization with phosphoric acid as the dehydrating agent. Optimal yield was obtained by heating sucrose in concentrated pho...
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Article
Detection of Sn(II) ions via quenching of the fluorescence of carbon nanodots
We report that fluorescent carbon nanodots (C-dots) can act as an optical probe for quantifying Sn(II) ions in aqueous solution. C-dots are synthesized by carbonization and surface oxidation of preformed sago ...
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Article
Size-controlled microbeads through the influence of the coalescence effect in the emulsification solvent evaporation method
This paper reports a novel, simple, repeatable and cost-effective protocol for producing Ca-alginate beads with controlled sizes ranging from 50–250 μm with a narrow size distribution. The characteristics of t...
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Article
Demonstration of a simple, economical and practical technique utilising an imprinted polymer for metal ion sensing
This paper describes a simple, economical and practical optical sensor that has been developed using an ion imprinted polymer for detecting copper(II) ion using reflectance spectrometry. The imprinted polymer ...