PMID- 35378121
OWN - NLM
STAT- MEDLINE
DCOM- 20220620
LR  - 20220730
IS  - 1096-0953 (Electronic)
IS  - 0013-9351 (Linking)
VI  - 212
IP  - Pt A
DP  - 2022 Sep
TI  - Core-shell magnetic molecularly imprinted polymer for selective recognition and 
      detection of sunset yellow in aqueous environment and real samples.
PG  - 113209
LID - S0013-9351(22)00536-9 [pii]
LID - 10.1016/j.envres.2022.113209 [doi]
AB  - Magnetic Molecularly imprinted polymers (MMIPs) have been recently recognized as 
      an exceptional tool for monitoring and decontamination of environmental and 
      biological samples of diverse nature. Based on the potential applications as 
      sorbents and biomimetic sensors, herein, a core-shell magnetic-molecularly 
      imprinted polymer (MMIP) was developed as a selective material for separation and 
      sensing of sunset yellow (SY) dye in an aqueous environment and real samples. The 
      MMIP was synthesized via precipitation polymerization using SY as a template, MAA 
      as a functional monomer (chosen based on simulation studies), EGDMA as a 
      cross-linking agent, and AIBN as an initiator. To elaborate the specificity of 
      MMIP, a comparative agent, magnetic non-imprinted polymer (MNIP) was also 
      synthesized. The XRD results showed that the MMIP showed both crystalline and 
      amorphous structure attributed to the presence and polymeric and non-polymeric 
      groups. The FTIR spectra confirmed synthesis of intermediate and final MMIP 
      product. The SEM results showed spherical morphology and porous structure of the 
      MMIP with an average particle size of 0.636 mum in diameter. The MMIP was first 
      employed as a sorbent for the removal of SY from the aqueous environment. The 
      binding experiments performed at optimized operating conditions (pH 2; time 
      30 min; sorbent dosage 3 mg; sorbate concentration 80 ppm) showed more 
      selectivity when compared with MNIP. The data fitted best to Langmuir's sorption 
      isotherm (Q(o) 359.8 mg/g) and followed the pseudo-second-order kinetic model. 
      The synthesized MMIP was also used as an electrochemical sensor for detection of 
      SY dye in the aqueous environment, which exhibited a linear range of detection as 
      (1.51 x 10(-6) - 1.5 x 10(-3) M). The limit of detection (LOD) and limit of 
      quantification (LOQ) were found to be 0.00413 M and 0.0137 M, respectively. While 
      the R(2) value was found to be 0.997 at optimized analytical conditions. These 
      results suggested that the synthesized MMIP can be applied for the selective 
      separation and quantification of SY dye in sample of diverse nature.
CI  - Copyright (c) 2022 Elsevier Inc. All rights reserved.
FAU - Malik, Sumeet
AU  - Malik S
AD  - Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 
      25120, Pakistan.
FAU - Khan, Adnan
AU  - Khan A
AD  - Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 
      25120, Pakistan. Electronic address: adnankhan@uop.edu.pk.
FAU - Rahman, Gul
AU  - Rahman G
AD  - Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 
      25120, Pakistan.
FAU - Ali, Nauman
AU  - Ali N
AD  - Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 
      25120, Pakistan.
FAU - Khan, Hamayun
AU  - Khan H
AD  - Department of Chemistry, Islamia College University, Peshawar, KP, 25120, 
      Pakistan.
FAU - Khan, Sabir
AU  - Khan S
AD  - Laboratory of Physical Chemistry Research, Faculty of Sciences, National 
      University of Engineering, Av. Tupac Amaru 210, Rimac, Lima, Peru; Institute of 
      Chemistry, Sao Paulo State University (UNESP) and National Institute of 
      Alternative Technologies for Detection, Toxicological Evaluation and Removal of 
      Micropollutants and Radioactives (INCT-DATREM), 14801-970, Araraquara, SP, 
      Brazil.
FAU - Sotomayor, Maria D P T
AU  - Sotomayor MDPT
AD  - Institute of Chemistry, Sao Paulo State University (UNESP) and National Institute 
      of Alternative Technologies for Detection, Toxicological Evaluation and Removal 
      of Micropollutants and Radioactives (INCT-DATREM), 14801-970, Araraquara, SP, 
      Brazil. Electronic address: m.sotomayor@unesp.br.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20220401
PL  - Netherlands
TA  - Environ Res
JT  - Environmental research
JID - 0147621
RN  - 0 (Azo Compounds)
RN  - 0 (Molecularly Imprinted Polymers)
RN  - 0 (Polymers)
RN  - H77VEI93A8 (6-hydroxy-5-((p- sulfophenyl)azo)-2-naphthalenesulfonic acid disodium 
      salt)
SB  - IM
MH  - Adsorption
MH  - Azo Compounds
MH  - Magnetic Phenomena
MH  - *Molecular Imprinting/methods
MH  - Molecularly Imprinted Polymers
MH  - Polymers/chemistry
OTO - NOTNLM
OT  - Electrochemical/biomimetic sensor
OT  - Environmental samples
OT  - MMIP
OT  - Real samples
OT  - Sorbent
OT  - Sunset yellow
EDAT- 2022/04/05 06:00
MHDA- 2022/06/22 06:00
CRDT- 2022/04/04 20:10
PHST- 2022/02/03 00:00 [received]
PHST- 2022/03/01 00:00 [revised]
PHST- 2022/03/25 00:00 [accepted]
PHST- 2022/04/05 06:00 [pubmed]
PHST- 2022/06/22 06:00 [medline]
PHST- 2022/04/04 20:10 [entrez]
AID - S0013-9351(22)00536-9 [pii]
AID - 10.1016/j.envres.2022.113209 [doi]
PST - ppublish
SO  - Environ Res. 2022 Sep;212(Pt A):113209. doi: 10.1016/j.envres.2022.113209. Epub 
      2022 Apr 1.