Metallogel Template Fabrication of pH‐Responsive Copolymer Nanowires Loaded with Silver Nanoparticles and Their Photocatalytic Degradation of Methylene Blue

Wen, Xing; Tang, Li‐Ming; Li, Botian

doi:10.1002/asia.201402575

Cited by 15 publications

(16 citation statements)

References 47 publications

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“…Therefore, the size and distribution of the formed Ag NPs could be controlled by reduction time. Different from Ag NPs loaded P(MBA-4VP) nanowires, where Ag NPs were all dispersed throughout the core of the nanowires [29], the formed Ag NPs on P(MBA-AAc) nanowires are inclined to disperse in the whole nanowires and size of the Ag NPs is more smaller under the same reduction condition. However, when the reduction time is further increased to 4 h, the size of the formed Ag NPs greatly increases because of serious agglomeration while the number of Ag NPs on P(MBA-AAc) nanowires decreases due to the leaching of Ag NPs to the reducing agent (showed in Fig.…”

Section: Characterization Of P(mba-aac) 1d Nanostructures and Ag Nps mentioning

confidence: 97%

“…In our previous research, we have found that Ag NPs loaded P(MBA-4VP) nanowires have highly photocatalytic activity and photostability, and the photodegradation rate of MB is dependent on the content and size of Ag NPs [29]. However, even though the maximum value of the rate constant k for photodegradation of MB catalyzed by Ag NPs loaded P(MBA-4VP) nanowires is still less than the value of photodegradation of MB catalyzed by Ag NPs loaded P(MBA-AAc) nanowires at pH 7.…”

Section: Evaluation Of Photocatalytic Performancementioning

confidence: 99%

“…However, 4VP is not really biocompatible, which could be severe hints for biomedical applications [28]. Additionally, we also have obtained silver nanoparticles (Ag NPs) loaded P(MBA-4VP) nanowires through the reduction of silver ions instead of template removal after copolymerization [29]. Different from the traditional method, silver ions originally existed inside the copolymer nanowires without physical entrapment.…”

Section: Introductionmentioning

confidence: 98%

“…A wide range of protective systems have been used to increase the stability and dispersion of metallic nanoparticles, such as dendrimers [31], block copolymer micelles [32], hydrogels [33] and metallogels [34]. In our previous research [29], we have used 1D copolymer nanostructures to immobilize and stabilize the Ag NPs, which possess a large specific surface area, as well as resistance to high temperature and different solvents. Thus, these as-prepared Ag NPs loaded P(MBA-4VP) nanowires have highly photocatalytic activity, photostability and reusability for methylene blue (MB).…”

Section: Introductionmentioning

confidence: 99%

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One-dimensional copolymer nanostructures loaded with silver nanoparticles fabricated via metallogel template copolymerization and their pH dependent photocatalytic degradation of methylene blue

Wen

Tang

2015

Journal of Molecular Catalysis A: Chemical

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Section: Characterization Of P(mba-aac) 1d Nanostructures and Ag Nps mentioning

confidence: 97%

Section: Evaluation Of Photocatalytic Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

One-dimensional copolymer nanostructures loaded with silver nanoparticles fabricated via metallogel template copolymerization and their pH dependent photocatalytic degradation of methylene blue

Wen

Tang

2015

Journal of Molecular Catalysis A: Chemical

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“…In addition, PISA has recently been exploited to prepare so‐called nanoworms, an emerging subclass of polymeric nanoparticles with a number of potentially beneficial physical properties such as high surface area and aspect ratio . Due to these unique properties, nanoworms have recently attracted considerable interest in a variety of different fields including catalysis, material science, immunology, tissue engineering, and drug delivery . In addition to nanoworms, amphiphilic block copolymer vesicle structures or polymersomes have been commonly exploited for biomedical applications .…”

Section: Introductionmentioning

confidence: 99%

Controlling Nanomaterial Size and Shape for Biomedical Applications via Polymerization‐Induced Self‐Assembly

Khor

Quinn

Whittaker

et al. 2018

Macromol. Rapid Commun.

145

136

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Rapid developments in the polymerization-induced self-assembly (PISA) technique have paved the way for the environmentally friendly production of nanoparticles with tunable size and shape for a diverse range of applications. In this feature article, the biomedical applications of PISA nanoparticles and the substantial progress made in controlling their size and shape are highlighted. In addition to early investigations into drug delivery, applications such as medical imaging, tissue culture, and blood cryopreservation are also described. Various parameters for controlling the morphology of PISA nanoparticles are discussed, including the degree of polymerization of the macro-CTA and core-forming polymers, the concentration of macro-CTA and core-forming monomers, the solid content of the final products, the solution pH, the thermoresponsitivity of the macro-CTA, the macro-CTA end group, and the initiator concentration. Finally, several limitations and challenges for the PISA technique that have been recently addressed, along with those that will require further efforts into the future, will be highlighted.

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Metallogels: Availability, Applicability, and Advanceability

et al. 2019

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amount of cross-linked solid. According to the nature of solvents, gels are categorized into hydrogel and organogel to indicate whether the solvent is water or organic solvent(s), respectively. As to the gelation driving forces, gels can be classified into physical gels in which intermolecular interactions are responsible for gel formation, and chemical gels in which the gel skeleton is cross-linked by covalent bonds.Incorporation of metal components (metal ions, metal-organic molecules, and metal nanoparticles) is an effective way to locally establish extra interactions among the building blocks and consequently trigger gel formation, [2][3][4] weaken [5] or enhance [6] gel strength, and modify gel morphology. [7,8] Moreover, addition of metal components is a straightforward way to integrate the specific properties of metals with the properties of organic matrix, therefore to tune properties like conductivity, [9] color, [10,11] rheological behavior, [12] adsorption, [13] emission, [14] photophysical properties, [15] magnetism, [16,17] antibacterial activities, [18,19] catalytic activities, [20][21][22][23] redox activities, [24,25] and selfhealing properties. [26][27][28] Therefore, a broad response range to physical and chemical stimuli can be achieved. For instance, the incorporation of multivalence ions such as Fe 2+ /Fe 3+ , [25,29] Co 2+ / Co 3+ , [30] Cu + /Cu 2+ , [31] results in redox reactive hydrogels; the incorporation of magnetic nanoparticles like Fe 3 O 4[17] causes the gel to respond to external magnetic fields. In addition to the abovementioned intrinsically functional superiorities, metallogels can also serve as ideal templates to generate new materials, [13,22,23,32,33] such as 3D networks, [34] porous structures, [35] chiral materials, [36][37][38] quantum dots, [39] and nanorods. [40] Following the rapid advancement of exploration on the knowledge acquisition toward the major roles that metallogels are playing in catalysis, sensing, biomedicine, electronics, and optical devices, the focus of research has been transferred to the design principles of metallogels in the last decade. Owing to the advancements in the instrumental characterizations and theoretical calculations, [41] a number of pioneering efforts on metallogel design have been made and several innovative reviews have summarized these inspiring contributions. [32,[42][43][44] Despite their extensively acknowledged application advantages in many fields, the discovery of new metallogels with expected functionalities is still highly dependent on experimental screening and serendipity. The challenge stems from the susceptible balance among those complicated intermolecular interactions and the elaborate structure requirements of metallogels.Another research niche that needs to be clarified before discussing recent development of metallogels is: how to sort Introducing metal components into gel matrices provides an effective strategy to develop soft materials with advantageous properties such as: optical activity, conductivity, magn...

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Metallogel Template Fabrication of pH‐Responsive Copolymer Nanowires Loaded with Silver Nanoparticles and Their Photocatalytic Degradation of Methylene Blue

Cited by 15 publications

References 47 publications

One-dimensional copolymer nanostructures loaded with silver nanoparticles fabricated via metallogel template copolymerization and their pH dependent photocatalytic degradation of methylene blue

One-dimensional copolymer nanostructures loaded with silver nanoparticles fabricated via metallogel template copolymerization and their pH dependent photocatalytic degradation of methylene blue

Controlling Nanomaterial Size and Shape for Biomedical Applications via Polymerization‐Induced Self‐Assembly

Metallogels: Availability, Applicability, and Advanceability

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