Fast clean-up and selective enrichment of florfenicol in milk by restricted access media molecularly imprinted magnetic microspheres based on surface-initiated photoiniferter-mediated polymerization

Lv, Yun‐Kai; Zhang, Jing; Li, Mengzhe; Zhou, Shaodan; Ren, Xing-Hui; Wang, Jing

doi:10.1039/c6ay00417b

Cited by 18 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the more recent examples include block and star polymer syntheses . Despite this, iniferter chemistry remains very important in forming photo‐initiated grafting from particles or surfaces of various types with a significant number of publications from just 2016–2017 . The process of surface‐initiated photoiniferter‐mediated polymerization is compared with surface‐initiated atom transfer radical polymerization (ATRP), surface reversible RAFT polymerization, and surface‐initiated NMP in a recent review …”

Section: Mechanism Of Raft Polymerizationmentioning

confidence: 99%

A Critical Survey of Dithiocarbamate Reversible Addition‐Fragmentation Chain Transfer (RAFT) Agents in Radical Polymerization

Moad

2018

J. Polym. Sci. Part A: Polym. Chem.

View full text Add to dashboard Cite

This manuscript is dedicated to Professor Mitsuo Sawamoto's outstanding achievements in polymer chemistry and recognizes his recent retirement from 40 years of exceptional service to Kyoto University.ABSTRACT: This article provides a critical review of the properties, synthesis, and applications of dithiocarbamates Z 0 Z 00 NC(=S)SR as mediators in reversible addition-fragmentation chain transfer (RAFT) polymerization. These are among the most versatile RAFT agents. Through choice of substituents on nitrogen (Z 0 , Z 00 ), the polymerization of most monomer types can be controlled to provide living characteristics (i.e., low dispersities, high end-group fidelity, and access to complex architectures). These include the more activated monomers (MAMs; e.g., styrenes and acrylates) and the less activated monomers (LAMs; e.g., vinyl esters and vinylamides). Dithiocarbamates with balanced activity (e.g., 1H-pyrazole-1-carbodithioates) or switchable RAFT agents [e.g., a N-methyl-N-(4-pyridinyl)dithiocarbamate] allow control MAMs and LAMs with a single RAFT agent and provide a pathway to lowdispersity poly(MAM)-block-poly(LAM).A few dithiocarbamates, for example, those with Z 0 Z 00 NC(=S)S-"near the center of Figure 1(a), show some capacity for controlling the polymerization of both MAMs and LAMs. However, the activity of these intermediate activity RAFT agents with respect to one or both monomer classes is usually compromised 13,[15][16][17][18] to the extent that, while achieving reasonable control over molar mass for both MAMs and LAMs, they provide higher Ð (e.g., >1.3) with 1,1-disubstituted MAMs and some retardation with LAMs (e.g., vinyl acetate) and intermediate activated monomers (IAMs; e.g., ).It has also been demonstrated that it is possible to switch the activity of certain dithiocarbamates [e.g., the N-(4-pyrdinyl) dithiocarbamates, most often with a protonation/deprotonation switch-refer Fig. 1], to provide good control over both These switchable RAFT agents allow the synthesis of poly(MAM)s, for example, low Ð poly(alkyl methacrylates), when in their switched, protonated, state, and Additional supporting information may be found in the online version of this article.

show abstract

Section: Mechanism Of Raft Polymerizationmentioning

confidence: 99%

A Critical Survey of Dithiocarbamate Reversible Addition‐Fragmentation Chain Transfer (RAFT) Agents in Radical Polymerization

Moad

2018

J. Polym. Sci. Part A: Polym. Chem.

View full text Add to dashboard Cite

show abstract

“…In Figure 3 B, the strong absorption peak near 1087 cm −1 was caused by the antisymmetric stretching vibration of SiOSi, and the bending vibration of SiO led to the characteristic peak near at 460 cm −1 , 27 indicating that a layer of silica gel should had coated on the surface of Fe 3 O 4 . Both of the stretching vibration peak of NH at 1553 cm −1 and the asymmetric stretching vibration band of CH 2 at 2919 cm −1 , 28 as seen in Figure 3C, suggested that the amino group should have been grafted successfully. In Figure 3 D, The peak at 1216 cm −1 attributed to SCN stretching vibration, explored the existence of the iniferter 29 .…”

Section: Resultsmentioning

confidence: 93%

A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

Wang

Bao

Tan

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

In order to improve the solubility and the long-cycle performance of hydrophobic drug sorafenib (SOR), and to obtain an ideal smart drug delivery system for the effective treatment of liver cancer, S-SMIP, a pH/GSH double-sensitive sorafenib stealth imprinting material, was successfully prepared by UV-initiated surface imprinted polymerization on the basis of polyethylene glycol 2000 (PEG 2000 ) acted as "gate keeper" modified magnetic substrate. The results showed that S-SMIP had a good adsorption capacity of 260.0 mg g À1 and an excellent selectivity factor α 2.33. S-SMIP's kinetic adsorption data accorded well with the pseudo-second-order model and its mechanism was controlled mainly by chemical adsorption. The drug release experiments in vitro indicated S-SMIP could not only greatly improve the solubility of SOR, but also had the pH/GSH dual-sensitive response performance. Compared with the non-stealth imprinted material SMIP, S-SMIP still had a better long-cycle effect on the release of SOR, increasing to160 h from 130 h. So, the target material S-SMIP could greatly prolong the half-life of SOR, which provided a good idea for the development of a smart drug delivery system.

show abstract

“…For example, Lv et al prepared orfenicol Fe 3 O 4 @RAMIP (restricted access molecularly imprinted polymer) nanoparticles for the enrichment and separation of orfenicol from milk. 5 Xu et al prepared sulfamethazine silica@RAMIP for on-line detection of sulfonamides in bovine milk. 6 These matrices are traditional materials, and it is necessary to nd new core materials to improve the enrichment performance.…”

Section: Introductionmentioning

confidence: 99%

A restricted access molecularly imprinted polymer coating on metal–organic frameworks for solid-phase extraction of ofloxacin and enrofloxacin from bovine serum

et al. 2019

View full text Add to dashboard Cite

show abstract

Fast clean-up and selective enrichment of florfenicol in milk by restricted access media molecularly imprinted magnetic microspheres based on surface-initiated photoiniferter-mediated polymerization

Abstract: A novel RAM-MIMM with water-compatible, exclusion biomacromolecules and selective enrichment analytes was prepared using a surface-initiated iniferter technique for magnetic dispersion extraction of trace florfenicol from milk samples.

Cited by 18 publications

References 17 publications

A Critical Survey of Dithiocarbamate Reversible Addition‐Fragmentation Chain Transfer (RAFT) Agents in Radical Polymerization

A Critical Survey of Dithiocarbamate Reversible Addition‐Fragmentation Chain Transfer (RAFT) Agents in Radical Polymerization

A novel smart stealth sorafenib delivery system based on the magnetic imprinting material modified by polyethylene glycol

A restricted access molecularly imprinted polymer coating on metal–organic frameworks for solid-phase extraction of ofloxacin and enrofloxacin from bovine serum

Contact Info

Product

Resources

About