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Characterization of molecularly imprinted polymer nanoparticles by photon correlation spectroscopy
RISE., Swedish ICT, Acreo. Biothema AB, Sweden.
Lund University, Sweden; University of California, USA.
Lund University, Sweden.
RISE., Swedish ICT, Acreo.
2014 (engelsk)Inngår i: Journal of Molecular Recognition, ISSN 0952-3499, E-ISSN 1099-1352, Vol. 27, nr 12, s. 714-721Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We follow template-binding induced aggregation of nanoparticles enantioselectively imprinted against (S)-propranolol, and the non-imprinted ones, using photon correlation spectroscopy. The method is simple - mix and measure. We have characterized binding of (R,S)-propranolol to the imprinted nanoparticles and determined the degree of non-specificity. Chiral properties were investigated using (S)-imprinted nanoparticle and (S)-propranolol as a template and (R)-propranolol as a control. Studying aggregation induced by three propranolol-related analytes enabled us to determine parts of the template involved in the specific binding. We follow template-binding induced aggregation of nanoparticles enantioselectively imprinted against (S)-propranolol, and the non-imprinted ones, using photon correlation spectroscopy (dynamic light scattering). The method requires no separation steps. We have characterized binding of (R,S)-propranolol to the imprinted polymers and determined the degree of non-specificity by comparing the specific binding with the results obtained using non-imprinted nanoparticles. Using (S)-propranolol as a template for binding to (S)-imprinted nanoparticle, and (R)-propranolol as a non-specific control, we have determined range of concentrations where chiral recognition can be observed. By studying aggregation induced by three analytes related to propranolol, atenolol, betaxolol, and 1-amino-3-(naphthalen-1-yloxy)propan-2-ol, we were able to determine which parts of the template are involved in the specific binding, discuss several details of specific adsorption, and the structure of the imprinted site.

sted, utgiver, år, opplag, sider
John Wiley and Sons Ltd , 2014. Vol. 27, nr 12, s. 714-721
Emneord [en]
aggregation kinetics, Brownian motion, chiral selectivity, colloidal suspension, molecularly imprinted polymers, nanoparticle, polymer, propranolol, chemistry, molecular imprinting, particle size, photon, procedures, spectroscopy, stereoisomerism, Nanoparticles, Photons, Polymers, Spectrum Analysis
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-46157DOI: 10.1002/jmr.2397Scopus ID: 2-s2.0-84927138481OAI: oai:DiVA.org:ri-46157DiVA, id: diva2:1457962
Merknad

CODEN: JMORE; Correspondence Address: Krozer, A.; Acreo Swedish ICT AB, Arvid Hedvallsbacke 4, Sweden; Chemicals/CAS: propranolol, 13013-17-7, 318-98-9, 3506-09-0, 4199-09-1, 525-66-6; Polymers; Propranolol

Tilgjengelig fra: 2020-08-13 Laget: 2020-08-13 Sist oppdatert: 2020-12-01bibliografisk kontrollert

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