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A Tagetes minuta based eco-benign synthesis of multifunctional Au/MgO nanocomposite with enhanced photocatalytic, antibacterial and DPPH scavenging activities.
Khan, Afaq Ullah; Khan, Qudrat Ullah; Tahir, Kamran; Ullah, Sami; Arooj, Aaranda; Li, Baoshan; Rehman, Khalil Ur; Nazir, Sadia; Khan, Mati Ullah; Ullah, Irfan.
Afiliación
  • Khan AU; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
  • Khan QU; Key Laboratory of Optoelectronic Devices and Systems, Ministry of Education and Guangdong Province, Collage of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China.
  • Tahir K; Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan.
  • Ullah S; Department of Chemistry, COMSATS University Islamabad (CUI), Abbottabad campus, 22060, Pakistan.
  • Arooj A; Department of Chemistry, COMSATS University Islamabad (CUI), Abbottabad campus, 22060, Pakistan.
  • Li B; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China. Electronic address: bsli@mail.buct.edu.cn.
  • Rehman KU; Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan.
  • Nazir S; Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan.
  • Khan MU; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
  • Ullah I; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Mater Sci Eng C Mater Biol Appl ; 126: 112146, 2021 Jul.
Article en En | MEDLINE | ID: mdl-34082957
In this research work, facile, economical and eco-benign experimental procedure were adopted to synthesize Au/MgO nanocomposite with the help of Tagetes minuta leaves extract. Phytochemicals present in the leaves of Tagetes minuta were acting as reducing and stabilizing agents to avoid aggregation of nanomaterials during the preparation of Au/MgO nanocomposite. The biologically synthesized nanocomposite were systematically characterized by UV-vis spectroscopy, Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared microscopy (FTIR), High resolution transmission electron microscopy (HRTEM), Thermogravimetric analysis (TGA), dynamic light scattering (DLS) and elemental mapping. UV-visible spectrum confirmed the presence of MgO and Au due to the presence of two SPR peaks at 315 nm and 528 nm, respectively. Moreover, the Au/MgO nanocomposite exhibited superior photocatalytic, antibacterial, hemolytic, and antioxidant activities. Photocatalytic performance tests of Au/MgO nanocomposite were- appraised by the rapid degradation of the methylene blue (MB) under UV light illumination. More importantly, after four successive cycles of MB degradation, the photocatalytic efficacy remained unchanged, which ensures the stability of the Au/MgO nanocomposite. Furthermore, the antibacterial tests showed that the advanced nanocomposite inhibited the growth of Escherichia coli, Bacillus subtilis, and Staphylococcus aureus with zones of inhibition 18 (±0.3), 21 (±0.5), and 19 (±0.4) mm, respectively. The cytotoxicity study revealed that Au/MgO nanocomposite is nontoxic to ordinary healthy RBCs. Interestingly, the Au/MgO nanocomposite also possesses an excellent antioxidant activity, whereby effectively scavenging 82% stable and harmful DPPH. Overall, the present study concludes that eco-benign Au/MgO nanocomposite has excellent potential for the remediation of bacterial pathogens and degradation of MB.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tagetes / Nanocompuestos / Nanopartículas del Metal Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tagetes / Nanocompuestos / Nanopartículas del Metal Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos