Developing conductive inks for printed electronics has gained increasing interest in recent years as a low-cost and environmentally friendly alternative to traditional organic metal-based inks. This study aims to investigate the influence of silver nitrate (AgNO3) concentration at different temperatures and the effect of polyvinylpyrrolidone (PVP) surfactant concentration on the properties of the colloidal silver nanoparticles (AgNPs) conductive inks. In this study, water-based AgNPs were prepared using a chemical reduction method. The effect of AgNO3 concentration, the reaction temperature, and the amount of PVP as a stabilizing agent on the size, shape, and purity of the synthesized AgNPs was investigated. The stability, thermal characteristics, and functional groups of the water-based AgNPs were also evaluated. The printed AgNPs patterns were examined for morphological and electrical properties. Results indicated that the concentration of AgNO3 and reaction temperature influence the size of AgNPs particles and their clustering. A high concentration of AgNO3 results in a higher yield of AgNPs and subsequently increases the electrical conductivity to 2.69×10° S/m. Adding PVP improves the stability of AgNPs for up to 45 days. Therefore, the development of water-based colloidal AgNPs conductive ink in this study can be used in inkjet printing to fabricate environmentally friendly printed electronics. 

Stability and conductivity of water-based colloidal silver nanoparticles conductive inks for sustainable printed electronics

Nanoscience is a rapidly growing science stream that has been one of the cost-effective and energy-efficient approaches with wide applications. Water pollution is a major issue that is increasing continuously due to anthropogenic activities and several organic and inorganic contaminants. To overcome this issue, nanoparticles (NPs) have been successfully used to treat water. These NPs possess many beneficial applications in many fields like agriculture, cosmetics, photoconductors, environmental biotechnology, glass and alloy production, solar cells, nanomedicine and drug deliveries, biosensors, food industries, etc. The properties comprising high surface area, greater chemical reactivity, and mechanical properties play a vital role in imparting such beneficiary properties. As a result, there has been an increasing demand for the synthesis of NPs. However, excess usage of NPs further creates toxic by-products. Therefore, scientists and researchers are now focussing on the biogenic synthesis of NPs. The biological routes of NP synthesis have been crucial because they are eco-friendly and environmentally safe. This chapter highlights the usage of different approaches and biogenic sources for the production of NPs. It also discusses the recent advancement in the use of biogenic NPs with respect to applications for wastewater treatment. 

A Synthesis of Biogenic Nanoparticles (NPs) for the Treatment of Wastewater and Its Application: A Review

Exploring the antibacterial potential of green synthesized silver nanoparticle decorated on functionalized multi-walled carbon nanotube: synthesis and analysis

In this report, we have developed highly water soluble and stable silver nanoparticles (Ag NPs) utilizing N-Cholyl Mercapto Histidine (NCMH) as a reducing and stabilizing agent with near the primary critical micellar concentration (CMC) under ambient sunlight irradiation. Moreover, The NCMH was firstly synthesized by demonstrating the reaction between cholic acid and 2- Mercapto Histidine through a simple acid amine coupling approach. The primary and secondary CMC of NCMH surfactant was measured by pyrene (1 × 10 

Eco-friendly Synthesis of N- Cholyl Mercapto Histidine Capped Silver Nanoparticles and its sensing of mercury (II) ions and photo catalytic degradation of Methyl orange

Indigenous chemical compounds found in plants such as phenolics, alkaloids, carotenoids, xanthophylls and terpenoids are used by chemists for a variety of synthetic applications. The Sustainable Chemistry or green chemistry,...

Synthesis and Catalytic Applications of Silver Nanoparticles: A Sustainable Chemical Approach using Indigenous Reducing and Capping Agents from Hyptis capitata

This work presents a novel method for generating bimetallic silver and zinc oxide nanoparticles (Ag/ZnO-NPs) using Hylocereus costaricensis (HC) stem extract and microwave irradiation. Silver and zinc oxide nanoparticles were...

Eco-Friendly Synthesis and Enhanced Antibacterial Action of Bimetallic Ag/ZnO Nanoparticles Using Hylocereus costaricensis Stem Extract

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Synthesis and Catalytic Applications of Silver Nanoparticles: A Sustainable Chemical Approach using Indigenous Reducing and Capping Agents from Hyptis capitata

Eco-Friendly Synthesis and Enhanced Antibacterial Action of Bimetallic Ag/ZnO Nanoparticles Using Hylocereus costaricensis Stem Extract