Photoluminescence carbon dot as a sensor for detecting of Pseudomonas aeruginosa bacteria: Hydrothermal synthesis of magnetic hollow NiFe2O4-carbon dots nanocomposite material. (15th March 2019)

• Record Type: Journal Article
• Authors: Ahmadian-Fard-Fini, Shahla; Ghanbari, Davood; Salavati-Niasari, Masoud
• Is Part Of: Composites. Number 161(2019)
• Page Start: 564
• Page End: 577
• Publication Date: 2019-03-15
• Subjects: Carbon dots -- P. Aeruginosa bacteria -- Nanostructures -- Magnetic -- Photoluminescence; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2018.12.131
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: The purpose of this research is synthesis of photoluminescence nanoparticles for detection of Pseudomonas aeruginosa that is feasible for bio medial applications. Carbon nano-templates were prepared from soot by burning of almond as a green precursor. Then NiFe2 O4 nanoparticles were synthesized on the carbon templates. For preparation of hollow structures, the product was calcinated for removing of carbon templates. Finally, carbon dots were synthesized on the hollow nickel ferrite cores by applying ethylene diamine and citric acid. Phase of the products was approved by X-ray diffraction (XRD), scanning electron microscopy (SEM) depict the morphology and transmission electron microscopy (TEM) probe the grain size and hollow structures of the nickel ferrite, carbon dot and nanocomposites. Fourier transform infrared (FT-IR) spectroscopy approved the purity of the nanostructures. Ultraviolet–visible (UV–Vis) absorption and photo-luminescence (PL) spectroscopy confirmed appropriate photo-luminescence under ultraviolet irradiation. Vibrating sample magnetometer (VSM) shows ferromagnetic property of the both hollow NiFe2 O4 and nickel ferrite-carbon nanocomposite. This work presents a new nanostructure as green prepared photoluminescence sensor for detecting of Pseudomonas aeruginosa bacteria, lead and mercury ions. Outcomes confirm decreasing in photoluminescence intensity of the nanocomposite by enhancing of Pseudomonas aeruginosa, Pb(II) and Hg(II) ions. Antibacterial effect of NiFe2 O4 -carbon dot on the degradation of Pseudomonas aeruginosa bacteria was also examined. Graphical abstract: Image 1 Highlights: Carbon nano-templates were prepared from soot by burning of almond. NiFe2 O4 nanoparticles were synthesized on the carbon templates. Carbon dots were synthesized on the hollow magnetic nickel ferrite cores. New photoluminescence sensor for detecting of bacteria was introduced.