Bioinspired synthesis of zinc oxide nano-flowers: A surface enhanced antibacterial and harvesting efficiency

Murtaza Hasan; Mahrukh Altaf; Ayesha Zafar; Shahbaz Gul Hassan; Zeeshan Ali; Ghazala Mustafa; Tauseef Munawar; Muhammad Saqib Saif; Tuba Tariq; Faisal Iqbal; Muhammad Waqas Khan; Asif Mahmood; Nasir Mahmood; Xugang Shu

doi:10.1016/j.msec.2020.111280

Bioinspired synthesis of zinc oxide nano-flowers: A surface enhanced antibacterial and harvesting efficiency

Mater Sci Eng C Mater Biol Appl. 2021 Feb:119:111280. doi: 10.1016/j.msec.2020.111280. Epub 2020 Jul 23.

Authors

Affiliations

¹ College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Department of Biochemistry & Biotechnology (Baghdad-ul-Jadeed Campus), The Islamia University of Bahawalpur, 63100, Pakistan.
² Department of Biochemistry & Biotechnology (Baghdad-ul-Jadeed Campus), The Islamia University of Bahawalpur, 63100, Pakistan.
³ College of Information Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, China.
⁴ School of Chemical and Material Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan.
⁵ Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
⁶ Department of Physics, The Islamia University, Bahawalpur 63100, Pakistan.
⁷ School of Electrical and Computer Engineering, RMIT University, 124 La Trobe Street, 3001 Melbourne, Victoria, Australia.
⁸ School of Chemical and Biomolecular Engineering, The University of Sydney, 2006, Sydney, Australia.
⁹ College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China. Electronic address: xgshu@21cn.com.

PMID: 33321572
DOI: 10.1016/j.msec.2020.111280

Abstract

Despite of broad range application, the cost effective, highly stable and reproduceable synthesis of ZnO is needed, especially which can make it biosafe as well. Here, a unique bioinspired synthesis of ZnO nanoflowers (NFs) has been introduced using Withania coagulans extract as reducing agent. Different molar concentrations were assessed to counter the effect of structural, morphological, antibacterial activity and high efficiency of algae harvesting. The UV-spectroscopy authenticates the synthesis of ZnO NFs having Wurtzite hexagonal structure with the size in the range of 360-550 nm. While surface analysis revealed the presence of stabilizing agent like phenolic, amine, etc. on surface of ZnO NFs. These perineum ZnO NFs exhibited a stronger antibacterial with Gram-positive bacteria Staphylococcus aureus as compare to Gram-negative bacteria Pseudomonas aeruginosa and greater harvesting efficiency up to 94% on the account of greater surface area and unique surface chemistry, thus leading a new horizon of more efficient and effective applications for ethanol production.

Keywords: Antibacterial activity; Green synthesis; Harvesting efficiency; Nanoflowers; Zinc oxide.

MeSH terms

Anti-Bacterial Agents / pharmacology
Microbial Sensitivity Tests
Pseudomonas aeruginosa
Staphylococcus aureus
Zinc Oxide* / pharmacology

Substances

Anti-Bacterial Agents
Zinc Oxide