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Green Synthesis of Silver Nanoparticles - Nature Cannot Be Left Out

机译：银纳米粒子的绿色合成-无法遗漏自然

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Research interest towards the synthesis of silver nanoparticles has grown tremendously in the recent years due to their application in the biomedical field, catalysis, optics, electronic to mention a few. These applications have triggered the synthesis of silver nanoparticles via several chemical and biological methods. The chemical methods can lead to absorption of hazardous chemicals on the surface of the nanoparticles thus, causing undesired toxicity issues and limit their biomedical applications. Owing to the important attributes silver nanoparticles has in the biomedical field such as disinfectant, antimicrobial, and as anti-cancer agents, their synthesis via a sustainable process is paramount for their usefulness in all these diverse applications. These sustainable processes take advantage of the green chemistry principles by employing green reagents to avoid the use of hazardous substances and in support of environmental sustainability. Nature has blessed the earth with an immense diversity of natural endowments such as plants of different species, DNA, RNA, proteins, and microbes which are readily available as biomaterials towards a more sustainable green synthesis of nanomaterials. However, among all these naturally occurring material, extracts of diverse range of plant species have been preferentially used in synthesising silver nanoparticles. This is due to their vast availability in nature which can be easily incorporated into large-scale production of nanomaterials and their rich source of phytochemicals with added medicinal values. These phytochemicals have the natural tendency to reduce silver ions to silver nanoparticles. In addition, plant's materials are biodegradable with little or no adverse effect on the environment and are important as medicines, flavours, fragrances, pigments, insecticides and other fine chemicals. Many research groups have reported the synthesis of silver nanoparticles using plant extract of different species and their applications mostly in the biomedical field. This chapter will look into silver nanoparticles synthesis, characterization, and application in the different biomedical field.
机译：近年来，由于其在生物医学领域，催化，光学，电子等领域的应用，近年来对银纳米颗粒合成的研究兴趣已大大增长。这些应用触发了通过几种化学和生物学方法合成银纳米颗粒。化学方法可能导致有害化学物质吸收在纳米粒子的表面上，从而导致不良的毒性问题并限制其生物医学应用。由于银纳米颗粒在生物医学领域（例如消毒剂，抗微生物剂和作为抗癌剂）具有重要的属性，因此通过可持续的方法合成银对于它们在所有这些不同应用中的用途至关重要。这些可持续过程通过使用绿色试剂来避免使用有害物质并支持环境可持续性，从而利用绿色化学原理。大自然为地球提供了丰富的自然资源，例如各种物种的植物，DNA，RNA，蛋白质和微生物，它们很容易作为生物材料用于实现更可持续的绿色纳米材料合成。然而，在所有这些天然存在的材料中，已将各种植物物种的提取物优先用于合成银纳米颗粒。这是由于它们在自然界中的广泛可用性，可以轻松地用于大规模生产纳米材料以及其丰富的具有附加医学价值的植物化学物质来源。这些植物化学物质具有将银离子还原为银纳米颗粒的自然趋势。另外，植物的材料是可生物降解的，对环境几乎没有或没有不利影响，并且作为药物，调味剂，香料，颜料，杀虫剂和其他精细化学品非常重要。许多研究小组已经报告了使用不同物种的植物提取物合成银纳米颗粒的方法，以及它们的应用主要在生物医学领域。本章将研究银纳米颗粒的合成，表征及其在不同生物医学领域中的应用。

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  • 来源
    《Nanotechnology research journal》 |2017年第1期|1-22|共22页
  • 作者

    Anyik John Leo; Oluwatobi S. Oluwafemi;

  • 作者单位

    Department of Applied Chemistry,Centre for Nanomaterials Science Research University of Johannesburg, Johannesburg, South Africa;

    Department of Applied Chemistry,Centre for Nanomaterials Science Research University of Johannesburg, Johannesburg, South Africa;

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