Green synthesis of Carica papaya mediated silver nanoparticles: Characterization, antibacterial activity, and bioelectricity generation for sustainable applications in nanotechnology

被引:2
作者
Ohiduzzaman, Md [1 ,2 ]
Khan, M. N. I. [3 ]
Khan, K. A. [1 ,4 ]
机构
[1] Jagannath Univ, Dept Phys, Dhaka 1100, Bangladesh
[2] Jashore Univ Sci & Technol, Dept Phys, Jashore 7408, Bangladesh
[3] Atom Energy Ctr, Mat Sci Div, Dhaka, Bangladesh
[4] Bangamata Sheikh Fojilatunnesa Mujib Sci & Technol, Jamalpur, Bangladesh
关键词
Green synthesis; Green Carica papaya extract; Ag NPs; CPE-electrochemical cell; Characterization; Antibacterial activity; internal resistance; MICROWAVE-ASSISTED EXTRACTION; OXIDE NANOPARTICLES; ZNO NANOPARTICLES; AG NANOPARTICLES; FRUIT EXTRACT; PEEL EXTRACT; LEAF EXTRACT; BIOSYNTHESIS; LEAVES; ANTIOXIDANT;
D O I
10.1016/j.molstruc.2024.139141
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study presents a sustainable method for synthesizing silver nanoparticles (Ag NPs) using green Carica papaya extract (CPE) as a reducing and stabilizing agent. The green synthesis minimizes environmental impact and utilizes bioactive compounds in Carica papaya (CP), offering an economical and sustainable alternative. The goal is to employ CPE for the eco-friendly synthesis of Ag NPs, followed by comprehensive characterization, antibacterial evaluation, cytotoxicity against brine shrimp, and examination of bioelectricity generation. Locally sourced CP was boiled in deionized water, then cooled and filtered twice. The bio-reduction of silver ions to Ag NPs was confirmed by a color change when 45 mL of 0.005 M AgNO3 was mixed with 5 mL of CPE. Characterization through UV-vis absorption spectrophotometry (UV), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive X-ray spectroscopy (EDX), Transmission electron microscopy (TEM), and Gas chromatography-mass spectrometry (GC-MS) analysis confirms the successful formation and consistent size distribution of Ag nanoparticles. CPE is a crucial reducing agent, as evidenced by a distinct UV-visible peak at 422 nm. X-ray crystal analysis verifies highly crystalline Ag NPs with a face-centered cubic lattice structure. The d-spacing values in SAED images are consistent with the results obtained from XRD. Antimicrobial effectiveness against Escherichia coli and Staphylococcus epidermidis is demonstrated. The study explores the bioelectricity generation potential of CPEsynthesized Ag NPs, indicating promising prospects for sustainable energy solutions. Preliminary experiments show the ability of the nanoparticles to catalyze bio-electrochemical reactions. This dual-benefit study underscores CPEs role in antibacterial properties and bioelectricity generation, laying the groundwork for further research in sustainable nanotechnology applicable to healthcare and energy sectors and contributing to the advancement of environmentally friendly technologies.
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页数:13
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