Evaluation of growth, primary productivity, nutritional composition, redox state, and antimicrobial activity of red seaweeds Gracilaria debilis and Gracilaria foliifera under pCO2-induced seawater acidification
In the present study, a novel colorimetric dual sensor for ultra sensitive detection of S2- ion or cysteine was designed by the encapsulation of Ag-ZnCo2O4 nanocomposite on chitosan (CS) matrix (CS-Ag-ZnCo2O4 NCs). The CS-Ag-ZnCo2O4 NCs was characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDAX). TEM results shows that the nanomaterial was polydisperse in nature. The zeta potential and particle size of NCs were found to be −35.4 mV ± 3 mV and 12 ± 2 nm respectively. The synthesized NCs were highly sensitive, specific and sensitive towards the detection of S2- ion or cysteine. The dual detection of S2- ion or cysteine was confirmed by the disappearance of UV–visible absorption spectra of CS-Ag-ZnCo2O4 NCs at 404 nm. Here, the limit of detection (LOD) of S2- ion or cysteine by the present probe was calculated to be 0.62 nM and 2.87 nM. In advent, the detection of S2- ion or cysteine under varying environmental conditions were also performed. Thus, the CS-Ag-ZnCo2O4 NCs provides a convenient and reliable way for the detection of S2- ion or cysteine.
Molybdenum ions (Mo) can improve plants’ nutritional value primarily by enhancing nitrogenous metabolism. In this study, the comparative effects of seed priming using Mo were evaluated among…
The CdS/Ag2S nanocomposites (NCs) were synthesized by chemical co-precipitation technique. The optical properties and multifunctionality of the NCs were studied by evaluating photoluminescence,…
In the present study, a novel colorimetric dual sensor for ultra sensitive detection of S2- ion or cysteine was designed by the encapsulation of Ag-ZnCo2O4 nanocomposite on chitosan (CS) matrix (…