Journal ArticleDOI
Aflatoxins’ Clean-Up in Food Samples by Graphene Oxide–Polyvinyl Poly Pyrrolidone—Hollow Fiber Solid-Phase Microextraction
TLDR
In this paper, the authors reported the synthesis of graphene oxide and polyvinyl poly pyrrolidone composite and its application in the extraction of aflatoxins in food samples.Abstract:
The present investigation reports the synthesis of graphene oxide–polyvinyl poly pyrrolidone composite and its application in the extraction of aflatoxins in food samples. This composite was successfully synthesized and characterized with analytical instruments such as UV–Vis, FITR, XRD, and SEM techniques. The extraction was carried out by reinforced hollow fiber liquid-phase microextraction coupled with high-performance liquid chromatography (HPLC). Various parameters that affect the productivity of the present technique were exhaustively explored, and the quantifications were carried out under the optimized states. The limits of detection (LODs) were found to be 0.33, 0.10, 0.37, and 0.10 ng g−1, and limits of quantification (LOQs) were 1.10, 0.33, 1.24, and 0.33 ng g−1, respectively, for aflatoxins B1, B2, G1, and G2. The accuracy of the present method was determined based on the relative recovery (RR%) of the aflatoxins and the RR% of aflatoxins B1, B2, G1, and G2 which were found to be quite good (between 60.20 and 108.20 for 1 ng g−1 and between 62.02 and 95.39 for 5 ng g−1) in food samples. Applicability of the sorbent for the separation and quantification of the above-mentioned aflatoxins from food samples were examined. The developed method is straightforward, reliable, and effective, and has been successfully applied in determination of aflatoxins from food samples.read more
Citations
More filters
Journal ArticleDOI
Reduction of <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <mn>1</mn> <mo>/</mo> <mi>f</mi> </math> Noise in Single-Walled Carbon Nanotubes (SWCNTs) Using Gas Adsorption Technique
L. Natrayan,S. Angalaeswari,Senthil Kumar Kaliappan,C. N. D. K. Reddy,V. Sivaprakash,Pravin P. Patil,Pachappan Murugan +6 more
TL;DR: In this paper , gas adsorption was used in single-walled carbon nanotubes (SWCNT) to reduce the noise amplitude and increase the resistivity of the SWCNT.
Journal ArticleDOI
Development of Novel Bio-mulberry-Reinforced Polyacrylonitrile (PAN) Fibre Organic Brake Friction Composite Materials
Naresh Kumar,L. Natrayan,Guru Kasirajan,Senthil Kumar Kaliappan,M. Raj Kamal,Pravin P. Patil,Muse Degefe Chewaka +6 more
TL;DR: In this article , the brake pads were fabricated with the various wt% of mulberry fibres and PAN fibre with an equal ratio and aramid fibre [3-6%] in the hydraulic hind brake molding machine.
Journal ArticleDOI
Development and Characterization of Carbon-Based Adsorbents Derived from Agricultural Wastes and Their Effectiveness in Adsorption of Heavy Metals in Waste Water
L. Natrayan,Senthil Kumar Kaliappan,C. N. Dheeraj Kumar Reddy,M. Karthick,N. Sivakumar,Pravin P. Patil,S. Sekar,S. Thanappan +7 more
TL;DR: In this paper , the pyrolyzed biochar with high surface area was employed to adsorb Pb2+ (lead) ions, the heaviest pollutants in the water bodies.
Journal ArticleDOI
Effect of Mechanical Properties on Fibre Addition of Flax and Graphene-Based Bionanocomposites
L. Natrayan,Senthil Kumar Kaliappan,Baskara S. Sethupathy,S. Sekar,Pravin P. Patil,G. Velmurugan,Tewedaj Tariku Olkeba +6 more
TL;DR: In this article , the structural properties of natural fiber-based polymer nanocomposites have been examined using the Taguchi L9 design, such as flexural, tensile, and impact properties.
Journal ArticleDOI
Investigation of Mechanical and Thermal Properties on Novel Wheat Straw and PAN Fibre Hybrid Green Composites
Naresh Kumar,Senthil Kumar Kaliappan,S Sandana Socrates,L. Natrayan,Praveen Bhai Patel,Pravin P. Patil,S. Sekar,Wubishet Degife Mammo +7 more
TL;DR: Grewia optiva wheat straw waste fiber and PAN fiber are combined in this paper to create new composite materials, and the results showed that PAN fiber is quite effective as composites.
References
More filters
Journal ArticleDOI
Graphene and Graphene Oxide: Synthesis, Properties, and Applications
TL;DR: An overview of the synthesis, properties, and applications of graphene and related materials (primarily, graphite oxide and its colloidal suspensions and materials made from them), from a materials science perspective.
Journal ArticleDOI
Single Sheet Functionalized Graphene by Oxidation and Thermal Expansion of Graphite
Michael J. McAllister,Je-Luen Li,Douglas H. Adamson,Hannes C. Schniepp,Ahmed Abdala,Jun-Jun Liu,Margarita Herrera-Alonso,David L. Milius,Roberto Car,Robert K. Prud'homme,Ilhan A. Aksay +10 more
TL;DR: In this article, a detailed analysis of the thermal expansion mechanism of graphite oxide to produce functionalized graphene sheets is provided, where it is shown that the decomposition rate of the epoxy and hydroxyl sites exceeds the diffusion rate of evolved gases, yielding pressures that exceed the van der Waals forces holding the graphene sheets together.
Journal ArticleDOI
Specific surface area of carbon nanotubes and bundles of carbon nanotubes
TL;DR: In this article, the theoretical external specific surface area of single and multi-walled carbon nanotubes and of carbon-nanotube bundles is calculated as a function of their characteristics.
Journal ArticleDOI
Production, properties and potential of graphene
TL;DR: In this paper, the most promising and appealing properties of graphene are summarized from an exponentially growing literature, with a particular attention to matching production methods to characteristics and to applications, including the high carrier mobility value in suspended and annealed samples for electronic devices, the thickness-dependent optical transparency and, in the mechanical section, the high robustness and full integration of graphene in sensing device applications, emphasizing on the high potential of graphene not only as a post-silicon materials for CMOS device application but more ambitiously as a platform for post-CMOS molecular architecture in
Journal ArticleDOI
Aflatoxins: A Global Concern for Food Safety, Human Health and Their Management
TL;DR: This review focuses on resources, production, detection and control measures of aflatoxins to ensure food and feed safety and provides knowledge on aflatoxin toxicity to help in ensure food safety.
Related Papers (5)
Electrospun polymer composite nanofiber-based in-syringe solid phase extraction in tandem with dispersive liquid-liquid microextraction coupled with HPLC-FD for determination of aflatoxins in soybean.
Nina Nouri,Hassan Sereshti +1 more