Preparation of magnetic ion imprinted polymer with waste beer yeast as functional monomer for Cd(ii) adsorption and detection

Abstract

In this work, a magnetic ion imprinted polymer (MIIP) with specific recognition capability toward cadmium was prepared by a sol–gel method using waste beer yeast, which is a macromolecule biomass, as a functional monomer.

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

“…These findings further demonstrate that IIP-Fe 3 O 4 @SiO 2 @CNFs had a higher affinity for Sb(III) than the NIP. Similar results have been reported in the literature [ 50 , 51 , 52 ].…”

“…The analytical characteristics of the IIP-Fe 3 O 4 @SiO 2 @CNFs adsorbent were compared with those reported in the literature for the preconcentration of Sb(III) and are presented in Table 5 . The developed method showed improved or similar analytical performance in terms of LOD, LOQ and linearity as compared to those reported by References [ 48 , 49 , 50 , 52 ]. However, the current method had high LOD and LOQ as well as narrow linear range as compared to those reported in the literature [ 2 , 17 , 39 , 51 , 53 ].…”

“…Furthermore, when the Scatchard plot displays an anomaly from linearity (showing two linear plots in one set of data), the results suggest that the adsorbent has more than one type of binding site. These binding sites can be categorised as high-affinity (low K d value) and low-affinity (high K d value) binding sites [ 51 , 52 ]. Figure 8 shows the Scatchard plots of Sb(III)-IIP-Fe 3 O 4 @SiO 2 @CNFs and NIP-Fe 3 O 4 @SiO 2 @CNFs.…”

A new bio-compatible Cd2+-selective nanostructured fluorescent imprinted polymer for cadmium ion sensing in aqueous media and its application in bio imaging in Vero cells

“…[33][34][35] In a parallel approach, ion-imprinted polymers (IIPs) are similar to MIPs except that ionic species are trapped in the polymer structure during the synthesis process. [36][37][38][39][40] Fabricating uorescent ion-imprinted polymers is still a challenging task since most of the metal ions have no uorescence characteristics. Despite this, several uorescent metal ion-imprinted polymers have already been reported.…”

“… 33–35 In a parallel approach, ion-imprinted polymers (IIPs) are similar to MIPs except that ionic species are trapped in the polymer structure during the synthesis process. 36–40 …”