Nov 2020 DOI 10.14302/issn.2689-2855.jan-20-3616
Hossien Hosseini SeyedCorresponding author
Department of Chemistry, Faculty of Science, Islamshahr Branch, Islamic Azad University, Tehran, Iran, Nika Pooyesh Strategic Sciences Research Institute, NBP Economic Group, Tehran-Iran
The composites of Cu, Carbonyl iron (CI), carbon nanofiber (CNF), graphite nanoflake (GNF)/polypyrrole (PPy) and [(Cu-CI-CNF-GNF) 0.5-PAA]-PPy0.5 were synthesized via different methods by in-situ polymerization on the surface of nanoparticles (NPs) with core-shell structure. This paper describes a method for polyacrylic acid (PAA) coating of NPs in aqueous solution. Then PPy coating was performed by template polymerization on NPs-PAA. Morphology, magnetic and conductivity properties were observed via scanning electron microscopy (SEM), vibrating sample magnetometer (VSM) and four probe method, respectively. The microwave characterization of nanocomposite was evaluated through arch test based on a network analyzer. The PPy nanocomposites possessed the excellent microwave multi absorbers properties in 2-18 GHz. It was also found that nanocomposites with 50% w/w and light weight exhibit good microwave absorbing properties in 2-3 GHz and 5-14 GHz frequency, so can be used to cellphone, radio frequency and radar shielding.
Mar 2024 DOI 10.14302/issn.2379-7835.ijn-24-4921
Bajaj ManyaCorresponding author
Hippocrates trusted foodstuff, maybe medicine, and healthcare management, administration, and costing are important. Nutraceuticals, derived from "nutrition" and "pharmaceutical," cover differing healing areas like “antagonistic-hard, cold and cough, sleep difficulties, digestion, cancer prevention, osteoporosis, blood pressure, cholesterol management, pain relievers, depression, and diabetes”. “Stephen De Felice”, “founder of the Foundation for Innovation in Medicine, created the term in 1989”.Functional foods, like milk and orange juice, supply health benefits that surpass food, in the way that a better lifestyle and a lower risk of ailment. Nutraceuticals, in another way, involve fortified dairy products like milk that help avoid or cure illnesses and disorders apart from anaemia.Conventional arrangements like Solvents extraction , Soxhlet distillation ,maceration and “Non conventional designs” like ‘Microwave assisted origin’, Ultrasound Assisted Extraction are used to restore the bioactive material from plants for nutraceuticals.”The Indian Health and Dietary Supplement Association” supports drug, nutraceutical, herbaceous, and direct selling energies by categorising them based on chemical arrangement, food type, and conventional arrangement.This paper gives a brief review on nutraceuticals ,its history , its market trend , extraction techniques , benefits and its applications .