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Search Results for green-synthesis

Article
Plant Extracts Mediated Synthesis of Nanoparticles: A Review of Innovations for Dentistry

Noor Kazem, Rana I. Mahmood, Alaa Al-Taie

Pages: 337-352

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Abstract

Lately, nanotechnology has made significant advancements in various scientific and medical fields, including dentistry, by developing nanoparticles with distinct chemical and physical properties. Green synthesis is considered an eco-friendly alternative and a safe and sustainable method compared to conventional chemical and physical synthesis methods, which often contain toxic and environmentally harmful materials. This method is also cost-effective, biocompatible, and consumes less energy, thereby reducing pollution and environmental hazards, and making it suitable for various biomedical applications. Many nanoparticles have been employed in dentistry to enhance preventive treatments, including dental implants, orthodontics, the treatment of tooth decay bacteria, and endodontics. Despite their numerous benefits in the dental field, nanoparticles can exhibit toxicity risks, long-term impacts, and limited stability that require further investigation before their use in clinical applications. This review analyzes and classifies over 70 studies from the past 10 years based on plant extract source, nanoparticle types, and dental applications. We offer a new classification framework that organizes nanoparticles synthesized using green methods according to their manufacturing process and functional applications in dentistry. Comparative analysis reveals that, for instance, zinc oxide and silver nanoparticles synthesized through a green process exhibit the highest antibacterial activity with low toxicity. This review highlights current research gaps in biostability and toxicity, and provides insights into potential clinical applications and future research directions. It focuses on the role and benefits of the green method in improving the properties of nanoparticles, as well as its impact and effectiveness in developing dental materials and mitigating biological risks, opening up broad and new horizons in advanced dental treatments.

Article
Effect of Banana Peels Extract Ratio on The Sustainable Eco-Friendly Synthesis of Zinc Oxide Nanoparticles

Atheel Alwash, Farah M. Ibrahim, Salam Mohammed

Pages: 297-303

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Abstract

In this work, environmentally friendly zinc oxide nanoparticles was produced using sustainable green technology. With several loading amounts, such as 5%, 10%, 50%, and 100%, the banana peel extract was utilized as a capping agent. This was followed by calcinations at 400 ºC for 3 h in a muffle furnace. To evaluate the physical and chemical change of the synthesized nanoparticles, XRD, FTIR, UV-VIS and SEM/EDAX was used. The characterization results reveald that the all the green synthesized ZnO NPs samples strongly supports the well-crystallinity with high phase purity. The average crystallite size of the prepared samples was calculated using Debye-Scherer's formula and the results shows that with an increase in extract amount, the average crystallite size was shrinking. The FTIR result verified the successful chemical reaction between zinc salt and banana peel extract. The UV-VIS results showed the effect of size quantisization phenomena at 100% extract adding. Finally, the SEM images for all the prepared samples confirm the spherical shape.

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