In vitro photoinactivation of S. aureus and photocatalytic degradation of tetracycline by novel phthalocyanine-graphene quantum dots nano-assemblies

Openda, Yolande Ikala; Mgidlana, Sithi; Nyokong, Tebello

doi:10.1016/j.jlumin.2022.118863

Journal of Luminescence

2022

DOI: 10.1016/j.jlumin.2022.118863

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In vitro photoinactivation of S. aureus and photocatalytic degradation of tetracycline by novel phthalocyanine-graphene quantum dots nano-assemblies

Yolande Ikala Openda

Sithi Mgidlana

Tebello Nyokong

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2024

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Cited by 7 publications

References 57 publications

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Harnessing the Potential of Graphene Quantum Dots for Multifunctional Biomedical Applications

Han,

Hao,

Zeng

et al. 2024

The Chemical Record

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The existing and emerging demand for materials for life and health has contributed to the cultivation and development of respective markets. Nevertheless, the current generation of biomedical materials has yet to fully satisfy the clinical requirements of the market, which is still in its relative infancy. Research and development in this area must be prioritized in light of the pivotal role of new life and health materials in the biological field. Among many life and health materials, GQDs, an emerging nanomaterial, exhibit considerable promise in the biomedical field, primarily due to their exceptional properties. Furthermore, the direct preparation and functionalization of GQDs have facilitated the development of specific functional composites based on GQDs. The biological applications of GQDs are undergoing rapid growth, which makes it necessary to publish a review article presenting the latest advances in this field. This review provides an overview of the significant advances in synthesizing GQDs, the techniques employed for structural characterizations, and the properties that have been elucidated. Furthermore, it presents recent findings on applying GQDs in antimicrobial, anticancer, biosensing, drug delivery, and bioimaging applications. Finally, it explores the potential of GQDs in biomedicine and biotechnology, highlighting the current challenges that remain to be addressed.

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Harnessing the Potential of Graphene Quantum Dots for Multifunctional Biomedical Applications

Han,

Hao,

Zeng

et al. 2024

The Chemical Record

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Photoinactivation of Escherichia coli and Staphylococcus aureus using Porphyrin-CuInS2/ZnS quantum dot conjugates immobilized on Mesoporous Silica

Ndlovu,

Chokoe,

Masebe

et al. 2024

Chem. Pap.

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Bacterial pathogens remain major contributors to illnesses as they have developed several resistance mechanisms against standard treatments. Innovative porphyrin-quantum dots conjugated materials have great potential in addressing the limitations in the current disinfection methods. The antimicrobial activity of metal-free and In(III) derivative of 4-(15-(4-boronophenyl)-10,20-diphenylporphyrin-5-yl)benzoic acid conjugated to CuInS2/ZnS quantum dots is investigated in this study at laboratory-scale experiments under controllable conditions. The conjugate was also immobilized on mesoporous silica for recovery and reusability purposes. Findings of the study were driven by antimicrobial photodynamic inactivation (aPDI) in the presence of a porphyrin and quantum dots. POR(In)-CIS/ZnS QDs-Silica was the best performing conjugate with a singlet quantum yield (ΦΔ) of 0.72 and a log reduction of 9.38 and 9.76 against Escherichia coli and S. aureus, respectively.

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A comprehensive review on recent developments in the graphene quantum dot framework for organic transformations

Prakash

Roopan

2023

Journal of Organometallic Chemistry

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In vitro photoinactivation of S. aureus and photocatalytic degradation of tetracycline by novel phthalocyanine-graphene quantum dots nano-assemblies

Cited by 7 publications

References 57 publications

Harnessing the Potential of Graphene Quantum Dots for Multifunctional Biomedical Applications

Harnessing the Potential of Graphene Quantum Dots for Multifunctional Biomedical Applications

Photoinactivation of Escherichia coli and Staphylococcus aureus using Porphyrin-CuInS2/ZnS quantum dot conjugates immobilized on Mesoporous Silica

A comprehensive review on recent developments in the graphene quantum dot framework for organic transformations

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