Rapid and ultrasensitive solution-based SERS detection of drug additives in aquaculture by using polystyrene sulfonate modified gold nanobipyramids was written by Amin, Muhammad Usman;Li, Lingwei;Zhang, Ruiyuan;Fang, Jixiang. And the article was included in Talanta in 2023.Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride This article mentions the following:
In recent years, surface-enhanced Raman spectroscopy (SERS) has been widely used in various fields for the rapid detection of trace-level mol. targets. In this study, we have developed a simple and effective solution-based SERS protocol to improve the activity for the detection of cationic dye mols. in aquaculture. The polystyrene sulfonate functionalized gold nanobipyramids (PSS-Au BPs) were synthesized from the cetyltrimethylammonium bromide (CTAB) reaction system followed by the ligand exchange process. The halide ions-induced aggregation of PSS-Au BPs was carried out by using four type of different salts such as NaCl, NaBr, MgCl2 and MgSO4 to investigate their influence on the SERS activity. The results demonstrate that the ionic strength of the solution has an important impact on the colloidal stability and SERS activity. The PSS-Au BPs show an improved SERS sensitivity at lower concentrations of the aggregating agents in solution-based SERS by detecting the crystal violet (CV) mols. with a limit of detection (LOD) to 3.28 x 10-11 M. Furthermore, to demonstrate the generality of our proposed strategy, trace amounts of three more dyes such as malachite green (MG), methylene blue (MB), and rhodamine 6G (R-6G), as well as other mols. such as thiram and bisphenol-S were also detected. This protocol not only provides a method for rapid on-site detection of trace-level mols. but can also be applied to other SERS-based anal. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride).
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics