Constructing Metal Nanoparticle Multilayers with Polyphenylene Dendrimer/Gold Nanoparticles via “Click” Chemistry

Li, Huiqiang; Li, Zhanxian; Wu, Linzhi; Zhang, Yuna; Yu, Mingming; Wei, Liuhe

doi:10.1021/la400397q

Cited by 21 publications

(19 citation statements)

References 40 publications

(59 reference statements)

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“…Li et al reported stable immobilization of dendrimer structures through LbL assembly between azide-functional polymer and polyphenylene dendrimer-stabilized gold nanoparticles with alkynes at their peripheries ( Figure 8). 266 Reduction of chloroauric acid (H[AuCl 4 ]¢3H 2 O) by sodium borohydride in the presence of polyphenylene dendrimer as the stabilizing thiol ligand resulted in polyphenylene dendrimer-capped gold nanoparticles. Subsequently, azide-functionalized PAA and the dendrimergold nanoparticles were fabricated into multilayer films by LbL assembly coupled with click chemistry.…”

Section: Materials Aspectsmentioning

confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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Materials fabrication with nanoscale structural precision based on bottom-up-type self-assembly has become more important in various current disciplines in chemistry including materials chemistry, organic chemistry, physical chemistry, analytical chemistry, biochemistry, colloid and surface chemistry, and supramolecular chemistry. Although the design of new materials based on nanoscale self-assembly is anticipated as a key concept, preparing complete three-dimensional structures at nanoscale precision remains a difficult target using current technologies. Rather, dimension-reduced approaches such as layering of two-dimensional nanostructures into precisely controlled lamellar nanomaterials are currently achievable. In particular, layer-by-layer (LbL) assembly is known as a highly versatile method for fabrication of controlled layered structures from various kinds of component materials using very simple, inexpensive, and rapid procedures. Therefore, fabrication of multilayer films through the LbL deposition process has attracted growing interest from various research communities. The high versatility and flexibility of LbL assembly is continuously creating new concepts, new materials, new procedures, and new applications. In this highlight review, we focus on nanoarchitectonics by LbL assembly. After an initial introduction on the invention and a brief history of the LbL assembly technique, innovations and the evolution of the technique are described based mainly on recent examples, which are categorized into two sections: (i) developments in methodology (technical, material, and phenomenological aspects with expansion of concept) and (ii) progress in applications (physical, chemical/biochemical, and biomedical applications).

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Section: Materials Aspectsmentioning

confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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“…[29][30][31][32] Due to their high flexibility and deformability , well ordered NP assemblies can still be formed even in systems having larger size/shape distribution discrepancies. Previous reports on nanoparticle-cored dendrimers prepared directly in the presence of dendrimers 33 or via solvent-mediated dendritic ligand exchange reaction [34][35][36][37] have included the study of spacing-dependent dipolar interactions in 2D arrays of iron oxide NPs, 38 liquid-crystalline selfassemblies of dendronized gold nanoparticles, [39][40][41] construction of covalently bound dendrimer-NP multilayers, 42 and the use of dendronized hybrid systems in drug delivery, [43][44][45] imaging and theranostics, 46 …”

Section: Introductionmentioning

confidence: 99%

Dendron-Mediated Engineering of Interparticle Separation and Self-Assembly in Dendronized Gold Nanoparticles Superlattices

et al. 2015

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Self-assembly of nanoparticles into designed structures with controlled interparticle separations is of crucial importance for the engineering of new materials with tunable functions and for the subsequent bottom-up fabrication of functional devices. In this study, a series of lipophilic, highly flexible, disulfide dendritic wedges (generations 0-4), based on 2,2-bis(hydroxymethyl)propionic acid, was designed to bind Au nanoparticles with a thiolate bond. By controlling the solvent evaporation rate, the corresponding dendron-capped Au hybrids were found to self-organize into hexagonal close-packed (hcp) superlattices. The interparticular spacing was progressively varied from 2.2 to 6.3 nm with increasing dendritic generation, covering a range that is intermediate between commercial ligands and DNA-based ligand shells. Dual mixtures made from some of these dendronized hybrids (i.e., same inner core size but different dendritic covering) yielded binary superlattice structures of unprecedented single inorganic components, which are isostructural with NaZn13 and CaCu5 crystals.

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“…The covalent crosslinking of multilayers oen requires the multilayers to have specic reactive species built in. Although the construction of LbL PAMAM multilayers using covalent interactions has been reported, their application in retarded release systems has not been seriously considered, [33][34][35] and the inuence of covalent crosslinking on retarded release in such multilayers requires further study. The development of strategies for simultaneously achieving covalent crosslinking of the multilayers and incorporating drug reservoirs will greatly assist the application of these multilayers in biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

Post-infiltration and subsequent photo-crosslinking strategy for layer-by-layer fabrication of stable dendrimers enabling repeated loading and release of hydrophobic molecules

Wang

Zhou

et al. 2015

J. Mater. Chem. B

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The layer-by-layer (LbL) technique has been intensively investigated as a straightforward method for the incorporation of drug molecules or other bioactive species, enabling retarded release in drug delivery devices, in bioactive interfaces, in tissue engineering, and in regenerative medicine. The preparation of crosslinked LbL multilayers with embedded drug reservoirs for delayed release remains a challenging task, however. In the present study we have developed a method for the simultaneous utilisation of covalent interlayer linkages and drug reservoirs that can hold model drug molecules. A strategy of postinfiltration of photoactive bifunctional small molecules followed by UV irradiation has been employed for crosslinking the LbL multilayers, incorporating poly(amido amine) (PAMAM) molecules, which serve as a drug reservoir. The covalent linkage significantly alters the release profile of the model drug from the multilayers, with retarded release of hydrophobic molecules from a solvent, and enabling the loaded multilayers to withstand rinsing with 75% ethanol, the most commonly used sterilization procedure.

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Constructing Metal Nanoparticle Multilayers with Polyphenylene Dendrimer/Gold Nanoparticles via “Click” Chemistry

Cited by 21 publications

References 40 publications

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

Dendron-Mediated Engineering of Interparticle Separation and Self-Assembly in Dendronized Gold Nanoparticles Superlattices

Post-infiltration and subsequent photo-crosslinking strategy for layer-by-layer fabrication of stable dendrimers enabling repeated loading and release of hydrophobic molecules

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