Polyaminocyclodextrin nanosponges: synthesis, characterization and pH-responsive sequestration abilities

Renato Noto; Maria Luisa Saladino; Paolo Maria Giuseppe Lo Meo; Marco Russo; Delia Francesca Chillura Martino

Polyaminocyclodextrin nanosponges: synthesis, characterization and pH-responsive sequestration abilities

Renato Noto, Maria Luisa Saladino, Paolo Maria Giuseppe Lo Meo, Marco Russo, Delia Francesca Chillura Martino

Risultato della ricerca: Article

Abstract

New pH-responsive nanosponges were obtained by reacting four different polyaminocyclodextrins with heptakis-(6-bromo)-(6-deoxy)-β-cyclodextrin. The materials obtained were characterized by various techniques (FT-IR, potentiometric titration, differential scanning calorimetry (DSC), porosimetry (BET), 13C{1H} CP-MAS NMR). Their adsorption abilities at different pH values were verified towards a suitable set of model guests, and seem mainly controlled by electrostatic interactions, as a function of the protonation/charge status of the polymer matrix. By contrast, data positively point out a lesser importance assumed by the induced-fit effect, important in affecting the formation of host-guest complexes in solution. The frequency-switched Lee-Goldburg (FSLG) heteronuclear correlation solid-state NMR technique was exploited in order to assess the possible location of the guests within the polymer matrix.

Lingua originale	English
pagine (da-a)	49941-49953
Numero di pagine	13
Rivista	RSC Advances
Volume	6
Stato di pubblicazione	Published - 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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Noto, R., Saladino, M. L., Lo Meo, P. M. G., Russo, M., & Chillura Martino, D. F. (2016). Polyaminocyclodextrin nanosponges: synthesis, characterization and pH-responsive sequestration abilities. RSC Advances, 6, 49941-49953.

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title = "Polyaminocyclodextrin nanosponges: synthesis, characterization and pH-responsive sequestration abilities",

abstract = "New pH-responsive nanosponges were obtained by reacting four different polyaminocyclodextrins with heptakis-(6-bromo)-(6-deoxy)-β-cyclodextrin. The materials obtained were characterized by various techniques (FT-IR, potentiometric titration, differential scanning calorimetry (DSC), porosimetry (BET), 13C{1H} CP-MAS NMR). Their adsorption abilities at different pH values were verified towards a suitable set of model guests, and seem mainly controlled by electrostatic interactions, as a function of the protonation/charge status of the polymer matrix. By contrast, data positively point out a lesser importance assumed by the induced-fit effect, important in affecting the formation of host-guest complexes in solution. The frequency-switched Lee-Goldburg (FSLG) heteronuclear correlation solid-state NMR technique was exploited in order to assess the possible location of the guests within the polymer matrix.",

author = "Renato Noto and Saladino, {Maria Luisa} and {Lo Meo}, {Paolo Maria Giuseppe} and Marco Russo and {Chillura Martino}, {Delia Francesca}",

year = "2016",

language = "English",

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pages = "49941--49953",

journal = "RSC Advances",

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T1 - Polyaminocyclodextrin nanosponges: synthesis, characterization and pH-responsive sequestration abilities

AU - Noto, Renato

AU - Saladino, Maria Luisa

AU - Lo Meo, Paolo Maria Giuseppe

AU - Russo, Marco

AU - Chillura Martino, Delia Francesca

PY - 2016

Y1 - 2016

N2 - New pH-responsive nanosponges were obtained by reacting four different polyaminocyclodextrins with heptakis-(6-bromo)-(6-deoxy)-β-cyclodextrin. The materials obtained were characterized by various techniques (FT-IR, potentiometric titration, differential scanning calorimetry (DSC), porosimetry (BET), 13C{1H} CP-MAS NMR). Their adsorption abilities at different pH values were verified towards a suitable set of model guests, and seem mainly controlled by electrostatic interactions, as a function of the protonation/charge status of the polymer matrix. By contrast, data positively point out a lesser importance assumed by the induced-fit effect, important in affecting the formation of host-guest complexes in solution. The frequency-switched Lee-Goldburg (FSLG) heteronuclear correlation solid-state NMR technique was exploited in order to assess the possible location of the guests within the polymer matrix.

AB - New pH-responsive nanosponges were obtained by reacting four different polyaminocyclodextrins with heptakis-(6-bromo)-(6-deoxy)-β-cyclodextrin. The materials obtained were characterized by various techniques (FT-IR, potentiometric titration, differential scanning calorimetry (DSC), porosimetry (BET), 13C{1H} CP-MAS NMR). Their adsorption abilities at different pH values were verified towards a suitable set of model guests, and seem mainly controlled by electrostatic interactions, as a function of the protonation/charge status of the polymer matrix. By contrast, data positively point out a lesser importance assumed by the induced-fit effect, important in affecting the formation of host-guest complexes in solution. The frequency-switched Lee-Goldburg (FSLG) heteronuclear correlation solid-state NMR technique was exploited in order to assess the possible location of the guests within the polymer matrix.

UR - http://hdl.handle.net/10447/178146

M3 - Article

VL - 6

SP - 49941

EP - 49953

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

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