PMID- 25193172
OWN - NLM
STAT- MEDLINE
DCOM- 20141216
LR  - 20181202
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1364
DP  - 2014 Oct 17
TI  - Design of a surface-immobilized 4-nitrophenol molecularly imprinted polymer via 
      pre-grafting amino functional materials on magnetic nanoparticles.
PG  - 12-9
LID - S0021-9673(14)01323-5 [pii]
LID - 10.1016/j.chroma.2014.08.058 [doi]
AB  - In order to resolve the low adsorption capacity of the surface molecularly 
      imprinting methods, an approach was developed for the preparation of magnetic 
      imprinted polymers by pre-grafting the amino functional material, 
      3-aminopropyltriethoxysilane (APTES), on the surface of the silica coated 
      magnetic substrate. APTES was used for amino functionalization of the silica 
      coated Fe3O4 nanoparticles. Amino groups were used for immobilization of the 
      template molecules on the magnetic surface and additionally to react with the 
      terminal vinyl groups of cross-linker, ethylene glycol dimethacrylate (EGDMA), by 
      the Michael addition reaction. In this way, the imprinting sites of the analytes 
      formed on the substrate were increased. The sorbent was synthesized in the 
      presence of 4-nitrophenol (4-NP) and EGDMA as the template and cross-linker, 
      respectively. Different parameters affecting the adsorption, such as pH, 
      desorption solvent type and adsorption time were evaluated and optimized. The 
      prepared magnetic molecularly imprinted polymer (MMIP) showed high adsorption 
      capacity and proper selectivity for the template molecule. The kinetic adsorption 
      curve indicated that 90 min was sufficient to achieve the adsorption equilibrium 
      for MMIP. The maximum adsorption capacity was 129.1 mg g(-1). The experiments 
      exhibited a linear range of 10-3000 mug L(-1) for 4-NP with the correlation 
      coefficient (R(2)) of 0.997. The results of the real sample analysis confirmed 
      the applicability of the proposed MMIP for quantitative analysis of 4-NP in the 
      aqueous samples.
CI  - Copyright (c) 2014 Elsevier B.V. All rights reserved.
FAU - Mehdinia, Ali
AU  - Mehdinia A
AD  - Department of Marine Science, Iranian National Institute for Oceanography and 
      Atmospheric Science, Tehran, Iran. Electronic address: mehdinia@inio.ac.ir.
FAU - Dadkhah, Sahar
AU  - Dadkhah S
AD  - Department of Chemistry, Faculty of Science, K. N. Toosi University of 
      Technology, Tehran, Iran.
FAU - Baradaran Kayyal, Tohid
AU  - Baradaran Kayyal T
AD  - Department of Chemistry, Faculty of Science, K. N. Toosi University of 
      Technology, Tehran, Iran.
FAU - Jabbari, Ali
AU  - Jabbari A
AD  - Department of Chemistry, Faculty of Science, K. N. Toosi University of 
      Technology, Tehran, Iran.
LA  - eng
PT  - Journal Article
DEP - 20140823
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Cross-Linking Reagents)
RN  - 0 (Magnetite Nanoparticles)
RN  - 0 (Methacrylates)
RN  - 0 (Nitrophenols)
RN  - 0 (Polymers)
RN  - 0 (Propylamines)
RN  - 0 (Silanes)
RN  - 0 (Water Pollutants, Chemical)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - 7BK5G69305 (ethylene dimethacrylate)
RN  - L8S6UBW552 (amino-propyl-triethoxysilane)
RN  - Y92ZL45L4R (4-nitrophenol)
SB  - IM
MH  - Adsorption
MH  - Cross-Linking Reagents/chemistry
MH  - Kinetics
MH  - Magnetite Nanoparticles/*chemistry
MH  - Magnets
MH  - Methacrylates/chemistry
MH  - *Molecular Imprinting
MH  - Nitrophenols/analysis/*chemistry
MH  - Polymers/*chemistry
MH  - Propylamines
MH  - Seawater/chemistry
MH  - Silanes/*chemistry
MH  - Silicon Dioxide/*chemistry
MH  - Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - 4-Nitrophenol
OT  - Immobilized template
OT  - Magnetic nanoparticles
OT  - Pre-grafted functional material
OT  - Surface imprinted polymer
EDAT- 2014/09/07 06:00
MHDA- 2014/12/17 06:00
CRDT- 2014/09/07 06:00
PHST- 2014/06/24 00:00 [received]
PHST- 2014/08/12 00:00 [revised]
PHST- 2014/08/18 00:00 [accepted]
PHST- 2014/09/07 06:00 [entrez]
PHST- 2014/09/07 06:00 [pubmed]
PHST- 2014/12/17 06:00 [medline]
AID - S0021-9673(14)01323-5 [pii]
AID - 10.1016/j.chroma.2014.08.058 [doi]
PST - ppublish
SO  - J Chromatogr A. 2014 Oct 17;1364:12-9. doi: 10.1016/j.chroma.2014.08.058. Epub 
      2014 Aug 23.