central composite design (ccD) was applied to optimize the synthesis condition of silver nanoparticles (Agnps) using the extract of Plantago major (P. major) seeds via a low cost and single-step process. the aqueous seed extract was applied as both reducing element and capping reagent for green production of Agnps. five empirical factors of synthesis including temperature (Temp), pH, volume of P. major extract (V ex), volume of Agno 3 solution (V Ag) and synthesis time were used as independent variables of model and peak intensity of Surface plasmon Resonance (SpR) originated from nps as the dependent variable. the predicted optimal conditions was determined to be: Temp = 55 °C, pH = 9.9,V ex = 1.5 mL, V Ag = 30 mL, time = 60 min. The characterization of the prepared AgNPs at these optimum conditions was conducted by Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), transmission electron microscopy (TEM) and X-ray diffraction (XRD) to determine the surface biofunctionalities. Bio-activity of these Agnps against bacteria and fungi were evaluated based on its assay against Micrococcus luteus, Escherichia coli and Penicillium digitatum. furthermore, antioxidant capacity of these nps was checked using the ferric reducing antioxidant power (fRAp) assay. Nanotechnology is an important field of modern research which has been the principal of various technologies and main innovations; and is expected to be the basis of many other outstanding innovations in future. Because of importance and applications, research and development in nanoscience has been grown throughout the world during a short period of time 1-5. One of the major outputs of these studies is the introduction of new kind of materials in the nano-scale, including nonofilms, nanoparticles, nanowires and nanoclusters. Among different kinds of nanomaterials, metal nanoparticles are well-known due to their interesting properties in optical, electrical, magnetic and catalytic aspects 6. Metal nanomaterials prepared from the noble metals, in particular gold or silver, have attracted great interests due to their generated strong Surface Plasmon Resonance (SPR) 7. This fact should be noted that the SPR is a sensitive indicator of nanostructures geometry, which can be applied to follow the systematic and controlled variations in their geometry during preparation. SPR has been also widely used in sensing field which is known as "plasmonics" 8. During the past few decades, the exceptional properties of AgNPs have introduced them as reliable candidate for using in different fields such as biomedical 9 , antimicrobial and anti-infection medical device 10,11 , water
This article provides an overview of graphene-and carbon nanotube (CNT)-based biosensing devices or based on other kind of carbon nanomaterials capable of detecting the COVID-19 virus. "
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.