Green chemical decoration of multiwalled carbon nanotubes with polyoxometalate-encapsulated gold nanoparticles: visible light photocatalytic activities

Li, Shiwen; Yu, Xuelian; Zhang, Guangjin; Ma, Ying; Yao, Jiannian; Keita, Bineta; Nadjo, L.; Zhao, Hui

doi:10.1039/c0jm02683b

Cited by 86 publications

(65 citation statements)

References 27 publications

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“…15. HRTEM investigation reveals that hexagonal ZnO nanorods ‘with pencil like tip’ are crosslinked together by PMA anions 148 and self-assembled to nanoplatelets with grain boundaries as shown in Fig. 15(a 1,2 and b 1,2,3 ).…”

Section: Catalytic Deposition Mechanismmentioning

confidence: 99%

Morphology Transition Engineering of ZnO Nanorods to Nanoplatelets Grafted Mo8O23-MoO2 by Polyoxometalates: Mechanism and Possible Applicability to other Oxides

Abdelmohsen

Rouby

Ismail

et al. 2017

Sci Rep

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A new fundamental mechanism for reliable engineering of zinc oxide (ZnO) nanorods to nanoplatelets grafted Mo8O23-MoO2 mixed oxide with controlled morphology, composition and precise understanding of the nanoscale reaction mechanism was developed. These hybrid nanomaterials are gaining interest due to their potential use for energy, catalysis, biomedical and other applications. As an introductory section, we demonstrate a new expansion for the concept ‘materials engineering’ by discussing the fabrication of metal oxides nanostructures by bottom-up approach and carbon nanoparticles by top-down approach. Moreover, we propose a detailed mechanism for the novel phenomenon that was experienced by ZnO nanorods when treated with phosphomolybdic acid (PMA) under ultra-sonication stimulus. This approach is expected to be the basis of a competitive fabrication approach to 2D hybrid nanostructures. We will also discuss a proposed mechanism for the catalytic deposition of Mo8O23-MoO2 mixed oxide over ZnO nanoplatelets. A series of selection rules (SRs) which applied to ZnO to experience morphology transition and constitute Abdelmohsen theory for morphology transition engineering (ATMTE) will be demonstrated through the article, besides a brief discussion about possibility of other oxides to obey this theory.

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Section: Catalytic Deposition Mechanismmentioning

confidence: 99%

Morphology Transition Engineering of ZnO Nanorods to Nanoplatelets Grafted Mo8O23-MoO2 by Polyoxometalates: Mechanism and Possible Applicability to other Oxides

Abdelmohsen

Rouby

Ismail

et al. 2017

Sci Rep

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“…POMs have the unique ability to implement stepwise redox reactions while keeping their structure mainly unchanged. Once reduced, POMs such as [SiW 12 [179] efficiently transfer electrons to Au(III) therefore producing Au-NPs (see Fig. 9).…”

Section: Metal Complexes and Inorganic Systemsmentioning

confidence: 98%

Controlled spontaneous generation of gold nanoparticles assisted by dual reducing and capping agents

et al. 2011

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“…[14,15] The morphology of the AuNP-s@POMD was characterized by TEM (Figure 1), and the size distribution is shown in Figure S1 (Supporting Information). First, POMDs were readily grafted on the surface of AuNPs via a one-step synthetic route.…”

Section: Resultsmentioning

confidence: 99%

“…In Figure 1 B, the 1.35 nm-thick shell consists of a monolayer of POMD anions (Supporting Information, Figure S1B). [14,15,21] Subsequently, the N-acetyl-Cys-LPFFD peptide (N-Ac-CLPFFD) was conjugated to the AuNPs through the cysteine thiol group in 10:1 molar ratio with the AuNPs. The TEM image revealed that AuNPs@POMD was surrounded by a monolayer of POM anions.…”

Section: Resultsmentioning

confidence: 99%

Gold‐Nanoparticle‐Based Multifunctional Amyloid‐β Inhibitor against Alzheimer’s Disease

Gao

Sun

Dong

et al. 2014

Chemistry A European J

148

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Targeting amyloid-β (Aβ)-induced complex neurotoxicity has received considerable attention in the therapeutic and preventive treatment of Alzheimer's disease (AD). The complex pathogenesis of AD suggests that it requires comprehensive treatment, and drugs with multiple functions against AD are more desirable. Herein, AuNPs@POMD-pep (AuNPs: gold nanoparticles, POMD: polyoxometalate with Wells-Dawson structure, pep: peptide) were designed as a novel multifunctional Aβ inhibitor. AuNPs@POMD-pep shows synergistic effects in inhibiting Aβ aggregation, dissociating Aβ fibrils and decreasing Aβ-mediated peroxidase activity and Aβ-induced cytotoxicity. By taking advantage of AuNPs as vehicles that can cross the blood-brain barrier (BBB), AuNPs@POMD-pep can cross the BBB and thus overcome the drawbacks of small-molecule anti-AD drugs. Thus, this work provides new insights into the design and synthesis of inorganic nanoparticles as multifunctional therapeutic agents for treatment of AD.

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Green chemical decoration of multiwalled carbon nanotubes with polyoxometalate-encapsulated gold nanoparticles: visible light photocatalytic activities

Cited by 86 publications

References 27 publications

Morphology Transition Engineering of ZnO Nanorods to Nanoplatelets Grafted Mo8O23-MoO2 by Polyoxometalates: Mechanism and Possible Applicability to other Oxides

Morphology Transition Engineering of ZnO Nanorods to Nanoplatelets Grafted Mo8O23-MoO2 by Polyoxometalates: Mechanism and Possible Applicability to other Oxides

Controlled spontaneous generation of gold nanoparticles assisted by dual reducing and capping agents

Gold‐Nanoparticle‐Based Multifunctional Amyloid‐β Inhibitor against Alzheimer’s Disease

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