Green synthesis, and characterization of zinc oxide nanoparticles using Piper longum catkin extract and its in vitro antimicrobial activity against multi-drug-resistant non-typhoidal Salmonella spp.

Eco-Friendly One Pot Synthesis of Zinc Oxide Nanoparticles Using Catkin Extract of Piper longum: In Vitro Antibacterial, Antioxidant and Antibiofilm Potential against Multi Drug Resistant Enteroaggregative E. coli

“…The powdered catkin of P. longum (10 g) was added to 100 mL of nanopure water, which was then heated to 60 • C for 1 h; using Whatman No. 1 filter paper, the solid particulates were removed, and the filtrate was stored at 4 • C until the synthesis of ZnO NPs [7].…”

“…To remove impurities, the ZnO NPs were washed three times with methanol, followed by nanopure water. Finally, the ZnO NPs were air dried overnight at 80 • C and stored at 4 • C until further use [7].…”

“…The structural properties of the green synthesized ZnO NPs were investigated by means of PXRD (Bruker D8 Advance, Billerica, MA, USA) operated with a scanning step size of 0.02λ (λ = 1.54060 Å) at CuKα radiation using 40 KeV and 40 mA. The high-resolution TEM (HR-TEM; JEM 2100, Jeol, Tokyo, Japan) and SEM (Jeol 6390LV, Tokyo, Japan) analysis of the samples was used to perform the morphological analysis of ZnO NPs [7].…”

Antioxidant, Antibacterial and Antibiofilm Potential of Green Synthesized Silver-Zinc Oxide Nanocomposites from Curcuma longa Extract against Multi-Drug-Resistant Enteroaggregative E. coli

“…The antibacterial properties of silver (Ag) NPs against a wide range of drug-resistant pathogens are well-known [6]. Similarly, zinc oxide (ZnO) NPs have received recent attention, since they have been designated as 'generally regarded as safe' (GRAS) by U.S. Food and Drug Administration (US-FDA) and are known to possess characteristic anti-inflammatory, antibacterial, antifungal, antidiabetic, and photocatalytic properties [7]. A combination of Ag-and ZnO-forming Ag/ZnO nanocomposite (NC) heterostructures with the synergistic generation of reactive oxygen species (ROS) has recently been recognized as a broad-spectrum antibacterial agent in tackling drug-resistant infections [8].…”

Characterization and Bioactivity of Piper chaudocanum L. Extract-Doped ZnO Nanoparticles Biosynthesized by Co-Precipitation Method

“…The Piper (P.) genus has been traditionally used to treat various ailments, including headaches, liver ailments, body aches, epilepsy in children, colds, flu, and as an antidote for various toxins and weather-related illnesses [19]. Several Piper species, such as P. longum [20], P. betle [21], and P. nigrum [22] have been employed as reducing and capping agents in the production of ZnO NPs. Recently, P. chaudocanum L., a member of the Piper genus, has been in employment to synthesize nanoparticles [23][24][25][26] because it comprises various compounds such as alkaloids, triterpenoids, flavonoids, steroids, tannins, phenolic compounds, and piperine.…”