A novel N/Au co-doped carbon dot probe for continuous detection of silicate and phosphate by resonance Rayleigh scattering

Abstract

Co-doped carbon dots are new multifunctional carbon nanomaterials.

A new strategy for RRS-based determination of phosphate with a bifunctional Fe3O4 magnetic nanoparticle surface molecularly imprinted polydopamine probe

“…The treatment of the sample was according to a previous study. 31 10 mL each of tap water, lake water and industrial wastewater and the suspended solids were removed with filter paper and filtered with a 0.45 μm microporous filter membrane. The sample was centrifuged at 10 000 rpm for 10 min, and the appropriate amount of supernatant was diluted to obtain the sample solution for test.…”

“…The treatment of the sample was according to a previous study. 31 10 mL each of tap water, lake water and industrial wastewater and the suspended solids were removed with lter paper and ltered with a 0.45 mm microporous lter membrane.…”

Fluorescence wavelength shifts combined with light scattering for ratiometric sensing of chloride in the serum based on CsPbBr3@SiO2 perovskite nanocrystal composite halide exchanges

“…The former is referred to as first-order scattering (FOS), while the latter is known as second-order scattering (SOS) and frequency doubling scattering (FDS), respectively. [14][15][16] Typically, light scattering is a wellknown photophysical phenomenon in nanomaterials that depends on particle size and shape and is proportional to the square of particle volume in the Rayleigh scattering theory. 17,18 Therefore, for size-dependent fluorescent systems that experience fluorescence quenching or enhancement due to decomposition, aggregation, or plasmons, the aforementioned ratiometric platform can be easily realized based on simultaneous fluorescence and scattering intensity responses to the target.…”

A stable and sensitive Au metal organic frameworks resonance Rayleigh scattering nanoprobe for detection of SO32– in food based on fuchsin addition reaction

“…Nanoparticles have excellent optical properties, and a series of new RRS methods have been developed based on their surface plasmon RRS effect (7)(8)(9)(10)(11). Silicate (SiO 3 2− ) and phosphate (PO (12). In recent years, a series of new methods of RRS energy transfer (RRS-ET) have been developed to expand the analysis scope, and some substances that cannot be measured by RRS can be realized by means of RRS-ET method.…”

“…With the increase of SiO 3 2– , SiMo/PMo reacted with CD N/Au probe to form large particles, resulting in enhanced RRS intensity at 555 nm. Based on this, Li et al established a new RRS-ET method to detect SiO 3 2– and PO 4 3– continuously ( 12 ). In recent years, a series of new methods of RRS energy transfer (RRS-ET) have been developed to expand the analysis scope, and some substances that cannot be measured by RRS can be realized by means of RRS-ET method.…”