A novel sensing strategy for the detection of Staphylococcus aureus DNA by using a graphene oxide-based fluorescent probe

The Analyst ◽  
2013 ◽  
Vol 138 (9) ◽  
pp. 2749 ◽  
Author(s):  
Shu Pang ◽  
Yuan Gao ◽  
Yan Li ◽  
Siyu Liu ◽  
Xingguang Su
Keyword(s):  
Staphylococcus Aureus ◽  
Graphene Oxide ◽  
Fluorescent Probe

scholarly journals Silver nanoparticle-graphene oxide mixture as anti-bacterial against Staphylococcus aureus

2019 ◽  
Author(s):  
Wipsar Sunu Brams Dwandaru ◽  
Afrizal Lathiful Fadli ◽  
Dani Rahmawati Hakim ◽  
Absari Hanifah ◽  
Emi Kurnia Sari
Keyword(s):  
Staphylococcus Aureus ◽  
Graphene Oxide ◽  
Silver Nanoparticle ◽  
Oxide Mixture

scholarly journals Synthetic scale-up of a novel fluorescent probe and its biological evaluation for surface detection of Staphylococcus aureus

2017 ◽  
Vol 36 ◽  
pp. 1-9 ◽  
Author(s):  
Luke Bywaters ◽  
Lauren Mulcahy-Ryan ◽  
Mark Fielder ◽  
Alex Sinclair ◽  
Adam Le Gresley
Keyword(s):  
Staphylococcus Aureus ◽  
Fluorescent Probe ◽  
Scale Up ◽  
Biological Evaluation ◽  
Surface Detection

scholarly journals Metal-Carbon Interactions on Reduced Graphene Oxide under Facile Thermal Treatment: Microbiological and Cell Assay

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
N. L. V. Carreño ◽  
A. M. Barbosa ◽  
V. C. Duarte ◽  
C. F. Correa ◽  
C. Ferrúa ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Graphene Oxide ◽  
Cell Viability ◽  
Reduced Graphene Oxide ◽  
Nanocomposite Films ◽  
Control Group ◽  
Cell Viability Assay ◽  
Viability Assay ◽  
Reduced Graphene

Silver-functionalized reduced graphene oxide (Ag-rGO) nanosheets were prepared by single chemical and thermal processes, with very low concentration of silver. The resulting carbon framework consists of reduced graphene oxide (rGO) sheets or 3D networks, decorated with anchored silver nanoparticles. The Ag-rGO nanosheets were dispersed into a polymer matrix and the composites evaluated for use as biological scaffolds. The rGO material in poly(dimethylsiloxane) (PDMS) has been tested for antimicrobial activity against Gram-positiveStaphylococcus aureus(S. Aureus) bacteria, after exposure times of 24 and 120 hours, as well as in the determination of cell viability on cultures of fibroblast cells (NIH/3T3). Using 1 mL of Ag-rGO in PDMS the antibacterial effectiveness againstStaphylococcus aureuswas limited, showing an increased amount of Colony Forming Units (CFU), after 24 hours of contact. In the cell viability assay, after 48 hours of contact, the group of 1 mL of Ag-rGO with PDMS was the only group that increased cell viability when compared to the control group. In this context, it is believed these behaviors are due to the increase in cell adhesion capacity promoted by the rGO. Thus, the Ag-rGO/PDMS hybrid nanocomposite films can be used as scaffolds for tissue engineering, as they limit antimicrobial activity.

scholarly journals Cotton fabrics coated with Ag-TiO2 and Ag-TiO2/reduced graphene oxide nanocomposites

2020 ◽  
Author(s):  
Laura Chirila ◽  
Marcela Corina Rosu ◽  
Sabina Olaru ◽  
Cristian Tudoran ◽  
Dragos-Viorel Cosma ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Antimicrobial Effect ◽  
Inhibition Zone ◽  
Inhibitory Effect ◽  
Cotton Fabrics ◽  
Skin Bacteria ◽  
Reduced Graphene ◽  
Coated Cotton

Ag-TiO2 and Ag-TiO2/reduced graphene oxide nanopowders were deposited onto 100% cotton fabrics via electrostatic spraying method. The surface of cotton fabrics was pre-treated by plasma at atmospheric pressure using argon and nitrogen mixture. The as-prepared cotton fabrics were characterized in terms of structural and optical properties by X-ray diffraction (XRD) and optical reflectance measurements. The photocatalytic self-cleaning ability of Ag-TiO2 and Ag-TiO2/reduced graphene oxide coated cotton fabrics was evaluated by the photo-discoloration of methylene blue and berries juice stains, under 6 h simulated visible light irradiation. The combined functionalized coating on cotton fabrics demonstrated an improved photocatalytic effect compared with untreated cotton fabrics. The antimicrobial activity of Ag-TiO2 and Ag-TiO2/reduced graphene oxide coated cotton fabrics was tested against the Staphylococcus aureus and Candida albicans test strains as model microorganism of skin bacteria and fungi, respectively. An antimicrobial effect against the Staphylococcus aureus is observed even if the inhibition zone is not present. Untreated fabrics showed no antibacterial activity. No inhibitory effect on fungi colony growth was observed.

Minocycline hydrochloride loaded graphene oxide enables enhanced osteogenic activity in the presence of Gram-positive bacteria, Staphylococcus aureus

2019 ◽  
Vol 7 (22) ◽  
pp. 3590-3598 ◽  
Author(s):  
Jiajun Qiu ◽  
Wenhao Qian ◽  
Jinkai Zhang ◽  
Dafu Chen ◽  
Kelvin W. K. Yeung ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Graphene Oxide ◽  
Bacterial Infections ◽  
Oxide Films ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Osteogenic Activity ◽  
Minocycline Hydrochloride

Minocycline hydrochloride loaded graphene oxide films offer a solution for the issues of insufficient osseointegration and bacterial infections on the implants.

scholarly journals A label-free fluorescent probe for Hg2+ and biothiols based on graphene oxide and Ru-complex

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Linlin Wang ◽  
Tianming Yao ◽  
Shuo Shi ◽  
Yanlin Cao ◽  
Wenliang Sun
Keyword(s):  
Graphene Oxide ◽  
Fluorescent Probe ◽  
Label Free ◽  
Ru Complex
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