Polyelectrolyte complex-silica hybrid colloidal particles decorated with different polyelectrolytes

Hu, Jin-Jia; Hsieh, Yi Hsuan

doi:10.1016/j.jcis.2014.09.063

Cited by 14 publications

(12 citation statements)

References 55 publications

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“…As shown in Figure 2b, the two main peaks near −100 ppm and −110.5 ppm are attributed to Q 3 [Si(OSi) 3 (OH)] and Q 4 [Si(OSi) 4 ] with relative percentages of 30.2% and 69.8% respectively, which suggests the formation of well-condensed silica under the catalysis of NH 2 -Alginate. These results are in good agreement with the previous report that the mineralized silica using amine-containing polymers as catalysis and template exhibited a Q 4 /Q 3 ratio from 1.0 to 2.5 [25,26,27,28,29]. …”

Section: Resultssupporting

confidence: 93%

Constructing Biopolymer-Inorganic Nanocomposite through a Biomimetic Mineralization Process for Enzyme Immobilization

Jiang

et al. 2015

Materials

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Inspired by biosilicification, biomimetic polymer-silica nanocomposite has aroused a lot of interest from the viewpoints of both scientific research and technological applications. In this study, a novel dual functional polymer, NH2-Alginate, is synthesized through an oxidation-amination-reduction process. The “catalysis function” ensures the as-prepared NH2-Alginate inducing biomimetic mineralization of silica from low concentration precursor (Na2SiO3), and the “template function” cause microscopic phase separation in aqueous solution. The diameter of resultant NH2-Alginate micelles in aqueous solution distributed from 100 nm to 1.5 μm, and is influenced by the synthetic process of NH2-Alginate. The size and morphology of obtained NH2-Alginate/silica nanocomposite are correlated with the micelles. NH2-Alginate/silica nanocomposite was subsequently utilized to immobilize β-Glucuronidase (GUS). The harsh condition tolerance and long-term storage stability of the immobilized GUS are notably improved due to the buffering effect of NH2-Alginate and cage effect of silica matrix.

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Section: Resultssupporting

confidence: 93%

Constructing Biopolymer-Inorganic Nanocomposite through a Biomimetic Mineralization Process for Enzyme Immobilization

Jiang

et al. 2015

Materials

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“…C3Ms have been utilized to produce various types of metallic and semiconductor nanoparticles, including metals [ 174 , 180 , 181 , 182 , 183 , 184 ], metal oxides [ 185 , 186 , 187 , 188 , 189 ], and quantum dots [ 190 , 191 , 192 ]. The coacervate core can also be used for biomimetic mineralization of silica [ 193 ], barium carbonate [ 194 ], and calcium carbonate [ 195 ]. Furthermore, C3Ms can template the formation of well-defined nanogels after chemical cross-linking of the core [ 196 , 197 , 198 ].…”

Section: Other Technological Applicationsmentioning

confidence: 99%

On Complex Coacervate Core Micelles: Structure-Function Perspectives

2020

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The co-assembly of ionic-neutral block copolymers with oppositely charged species produces nanometric colloidal complexes, known, among other names, as complex coacervates core micelles (C3Ms). C3Ms are of widespread interest in nanomedicine for controlled delivery and release, whilst research activity into other application areas, such as gelation, catalysis, nanoparticle synthesis, and sensing, is increasing. In this review, we discuss recent studies on the functional roles that C3Ms can fulfil in these and other fields, focusing on emerging structure–function relations and remaining knowledge gaps.

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“…Polyelectrolytes (PEs) with ionizable groups on their backbones or side chains are usually effectively charged in solution due to ionic dissociation. [17][18][19] Not only can they assemble into different structures by themselves, but they also interact strongly with solid substrates, and in turn, they may substantially alter the respective surface characteristics. In the eld of nanotechnology, simplistically, the versatile and robust electrostatic complexation between NPs and PEs is recognized to be ne-tuned to co-assemble on the nanometer scale in a very elaborate manner, generating hybrid aggregates of controlled sizes between 100 nm and 100 mm, with advanced functionalities.…”

Section: Introductionmentioning

confidence: 99%

“…In the eld of nanotechnology, simplistically, the versatile and robust electrostatic complexation between NPs and PEs is recognized to be ne-tuned to co-assemble on the nanometer scale in a very elaborate manner, generating hybrid aggregates of controlled sizes between 100 nm and 100 mm, with advanced functionalities. [17][18][19] On this basis, herein, glycidyl azide polymer (GAP), an energetic polymer, serves as the backbone, then cationic and anionic sites are tethered to it by "click chemistry". The formed triazole ring is both the connection point between the ionic site and the backbone, and energetic structure.…”

Section: Introductionmentioning

confidence: 99%

A new strategy for the fabrication of high performance reactive microspheres via energetic polyelectrolyte assembly

Zhang

et al. 2017

RSC Adv.

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Since the thermite reaction in aluminum-based nanostructured energetic materials (NEMs) is closely involved with Al and oxide nanoparticles (NPs), intimate interfacial contact between the Al and oxide NPs is widely considered to be a key parameter for the NEMs with high reactivity. With the aim to overcome the disadvantage of inert modifiers without energetic groups, used in the assembly approach, which is a cutting-edge solution to precisely organize the arrangement of the Al and oxide NPs and lead to enhanced intimacy, we successfully prepared GAP-based (GAP, glycidyl azide polymer) energetic polyelectrolytes (GEPEs) and demonstrated electrostatic assembly as a facile way to fabricate high performance, reactive Al/Fe 2 O 3 microspheres after modification of the Al and Fe 2 O 3 NPs with the GEPEs.The pressurization rate of the obtained reactive microspheres, a relative measurement of the reactivity, reached 410.36 MPa s À1, which is the highest value obtained so far, and is 1-2 orders of magnitude higher than that of other reported Al/Fe 2 O 3 NEMs. The incorporated GEPEs serve three main roles:GEPEs act as a modifier by interacting strongly with the NPs, and improve the intimacy of the Al and Fe 2 O 3 via powerful electrostatic attraction between the modified NPs; the assembly of the reactive microspheres can be achieved through the directing assembly of the GEPEs themselves; internal gas released by the decomposition of energetic sites existing inside the assembled microspheres rapidly separates the NPs to prevent adverse sintering and to weaken the nanostructure loss during the reaction, resulting in an improvement of the reactivity.

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Polyelectrolyte complex-silica hybrid colloidal particles decorated with different polyelectrolytes

Cited by 14 publications

References 55 publications

Constructing Biopolymer-Inorganic Nanocomposite through a Biomimetic Mineralization Process for Enzyme Immobilization

Constructing Biopolymer-Inorganic Nanocomposite through a Biomimetic Mineralization Process for Enzyme Immobilization

On Complex Coacervate Core Micelles: Structure-Function Perspectives

A new strategy for the fabrication of high performance reactive microspheres via energetic polyelectrolyte assembly

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