Silver nanoparticles coated by green graphene quantum dots for accelerating the healing of MRSA-infected wounds

2020 ◽  
Vol 8 (23) ◽  
pp. 6670-6682 ◽  
Author(s):  
Xianghua Zhong ◽  
Chunyi Tong ◽  
Tiansheng Liu ◽  
Li Li ◽  
Xu Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Silver Nanoparticles ◽  
Bacterial Infection ◽  
Human Health ◽  
Graphene Quantum Dots ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Multidrug Resistant Bacteria ◽  
Clinical Therapy ◽  
Infected Wounds

Bacterial infection, especially multidrug-resistant bacteria-induced infection, threatens human health seriously, which has posed great challenges for clinical therapy.

scholarly journals Comparison of methods to detect the in vitro activity of silver nanoparticles (AgNP) against multidrug resistant bacteria

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Emerson Danguy Cavassin ◽  
Luiz Francisco Poli de Figueiredo ◽  
José Pinhata Otoch ◽  
Marcelo Martins Seckler ◽  
Roberto Angelo de Oliveira ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Multidrug Resistant ◽  
Vitro Activity ◽  
Resistant Bacteria ◽  
Comparison Of Methods ◽  
In Vitro Activity ◽  
Multidrug Resistant Bacteria

Bactericidal effect of silver nanoparticles against multidrug-resistant bacteria

2009 ◽  
Vol 26 (4) ◽  
pp. 615-621 ◽  
Author(s):  
Humberto H. Lara ◽  
Nilda V. Ayala-Núñez ◽  
Liliana del Carmen Ixtepan Turrent ◽  
Cristina Rodríguez Padilla
Keyword(s):  
Silver Nanoparticles ◽  
Bactericidal Effect ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Multidrug Resistant Bacteria

scholarly journals Nitrogen Functionalities of Amino-Functionalized Nitrogen-Doped Graphene Quantum Dots for Highly Efficient Enhancement of Antimicrobial Therapy to Eliminate Methicillin-Resistant Staphylococcus aureus and Utilization as a Contrast Agent

2021 ◽  
Vol 22 (18) ◽  
pp. 9695
Author(s):  
Wen-Shuo Kuo ◽  
Ping-Ching Wu ◽  
Chi-Yao Hung ◽  
Chia-Yuan Chang ◽  
Jiu-Yao Wang ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Quantum Dots ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Continuous Wave ◽  
Graphene Quantum Dots ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Methicillin Resistant ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

There is an urgent need for materials that can efficiently generate reactive oxygen species (ROS) and be used in photodynamic therapy (PDT) as two-photon imaging contrast probes. In this study, graphene quantum dots (GQDs) were subjected to amino group functionalization and nitrogen doping (amino-N-GQDs) via annealing and hydrothermal ammonia autoclave treatments. The synthesized dots could serve as a photosensitizer in PDT and generate more ROS than conventional GQDs under 60-s low-energy (fixed output power: 0.07 W·cm−2) excitation exerted by a 670-nm continuous-wave laser. The generated ROS were used to completely eliminate a multidrug-resistant strain of methicillin-resistant Staphylococcus aureus (MRSA), a Gram-positive bacterium. Compared with conventional GQDs, the amino-N-GQDs had superior optical properties, including stronger absorption, higher quantum yield (0.34), stronger luminescence, and high stability under exposure. The high photostability and intrinsic luminescence of amino-N-GQDs contribute to their suitability as contrast probes for use in biomedical imaging, in addition to their bacteria tracking and localization abilities. Herein, the dual-modality amino-N-GQDs in PDT easily eliminated multidrug-resistant bacteria, ultimately revealing their potential for use in future clinical applications.

scholarly journals Characterization and biological investigation of silver nanoparticles biosynthesized from Galaxaura rugosa against multidrug-resistant bacteria

2020 ◽  
Vol 14 (1) ◽  
pp. 1651-1659
Author(s):  
Raghad R. Alzahrani ◽  
Manal M. Alkhulaifi ◽  
Nouf M. Alenazi ◽  
Nawal M. Almusayeib ◽  
Musarat Amina ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Multidrug Resistant Bacteria ◽  
Biological Investigation
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