Amphiphilic polymeric particles with core–shell nanostructures: emulsion-based syntheses and potential applications

Ho, Kin Man; Li, Wei Ying; Wong, Chun Him; Li, Pei

doi:10.1007/s00396-010-2276-9

Cited by 91 publications

(62 citation statements)

References 98 publications

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“…[29,96] Furthermore, the physical properties of homopolymer microgels can be easily modified by incorporation of functional comonomers during the precipitation polymerization. Using acidic or basic comonomers like acrylic acid [54,93] or N- (3-aminopropyl) methacrylamide hydrochloride [45] an additional sensitivity against pH can be achieved [39,85]. Beside this, there exists a large number of nanoparticle-microgel hybrids.…”

Section: Introductionmentioning

confidence: 98%

Responsive Microgels at Surfaces and Interfaces

Wellert

Richter

Hellweg

et al. 2014

Zeitschrift Für Physikalische Chemie

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Stimuli responsive surface structures attract increasing attention due to a large variety of envisioned applications. The controlled organization of poly(N-isopropyl acrylamid), PNIPAM microgel particles at solid surfaces inspired numerous research activities. In this review article, we briefly discuss the swelling/deswelling properties of adsorbed microgel particles in comparison to the behavior in the bulk phase. The presence of the solid interface highly influences and changes their behavior with respect to the properties in solution. Furthermore, the confinement on a solid substrate allows the direct and in-situ investigation of the mechanical properties of the microgel particles. Additionally, we briefly review the research on microgel particles at liquid interfaces. At these interfaces new interesting effects occur. Moreover, we discuss some interesting work on potential applications. In this context, microgel particles are often used as an active component for responsive coatings of various functionality envisioning applications, e.g. in medicine, biotechnology, and nanooptics.Zusammenfassung: Responsive Oberflächenmaterialien finden aufgrund der damit verbundenen potentiellen technischen Anwendungsmöglichkeiten große Beachtung in der aktuellen Forschung. Die Möglichkeit, kolloidale Gelpartikel aus poly(N-Isopropylacrylamid), PNIPAM an festen Oberflächen kontrolliert anzuordnen, inspirierte vielfältige Forschungsakivitäten. In diesem Übersichtsartikel diskutieren wir das Quellverhalten adsorbierter Mikrogelpartikel im Vergleich zu

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Section: Introductionmentioning

confidence: 98%

Responsive Microgels at Surfaces and Interfaces

Wellert

Richter

Hellweg

et al. 2014

Zeitschrift Für Physikalische Chemie

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“…Such materials provide a new class of supramolecular building blocks, exhibiting unusual, unique properties with potential applications in drug and gene deliveries, enzyme immobilization, colloidal nanocatalysts, chemical sensing, functional coating. Emulsion-based synthetic strategies for preparation of amphiphilic core-shell particles were recently reviewed in [80].…”

Section: Smart Emulsionsmentioning

confidence: 99%

Smart and green interfaces: From single bubbles/drops to industrial environmental and biomedical applications

Dutschk

Karapantsios

Liggieri

et al. 2014

Advances in Colloid and Interface Science

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Interfaces can be called Smart and Green (S&G) when tailored such that the required technologies can be implemented with high efficiency, adaptability and selectivity. At the same time they have also to be eco-friendly, i.e. products must be biodegradable, reusable or simply more durable. Bubble and drop interfaces are in many of these smart technologies the fundamental entities and help develop smart products of the everyday life.Significant improvements of these processes and products can be achieved by implementing and manipulating specific properties of these interfaces in a simple and smart way, in order to accomplish specific tasks. The severe environmental issues require in addition attributing ecofriendly features to these interfaces, by incorporating innovative , or, sometime, recycle materials and conceiving new production processes which minimize the use of natural resources and energy. Such concept can be extended to include important societal challenges related to support a sustainable development and a healthy population.The achievement of such ambitious targets requires the technology research to be supported by a robust development of theoretical and experimental tools, needed to understand in more details the behavior of complex interfaces. A wide but not exhaustive review of recent work concerned with green and smart interfaces is presented, addressing different scientific and technological fields. The presented approaches reveal a huge potential in relation to various technological fields, such as nanotechnologies, biotechnologies, medical diagnostics, new or improved materials.

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“…Quaternary ammonium chitosan derivatives have shown potential in various pharmaceutical applications, such as delivery vehicle of peptides or proteins [17][18][19], novel mucoadhesive polymeric nanocomplex platform [20][21], antimicrobial agent [22][23], et al In drug controlled release system, it is a powerful tool to control interaction of polymer with drugs and enhance drug loading efficiency, as well as to tailor drug release period [24].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and drug delivery property of 2-N-carboxymethyl-6-O-diethylaminoethyl-chitosan

et al. 2013

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A novel route is demonstrated for the synthesis of 2-N-carboxymethyl-6-O-diethylaminoethyl-chitosan (DEAE-CMC) by incorporation of carboxymethyl groups as hydrophilic moieties to the C2-NH 2 , and diethylaminoethyl groups as hydrophobic moieties to the C6-CH 2 OH of the structural unit of chitosan, via a protection-graft-deprotection procedure with benzaldehyde as protective agent. The structure, morphology, and thermal properties of the chitosan graft copolymers were characterized by means of FT-IR, 1 H NMR, SEM, TGA and DSC. Chitosan and its derivatives were used as carrier of model drug-Vitamin B 12 (VB 12 ), and their controlled delivery behaviour in phosphate buffer solution (pH 7.4) were studied. The results show that the release rate of VB 12 from the carrier of DEAE-CMC copolymer becomes much slower than that of chitosan in phosphate buffer solution.

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Amphiphilic polymeric particles with core–shell nanostructures: emulsion-based syntheses and potential applications

Cited by 91 publications

References 98 publications

Responsive Microgels at Surfaces and Interfaces

Responsive Microgels at Surfaces and Interfaces

Smart and green interfaces: From single bubbles/drops to industrial environmental and biomedical applications

Synthesis, characterization, and drug delivery property of 2-N-carboxymethyl-6-O-diethylaminoethyl-chitosan

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