Green synthesis of nanoparticles: current prospectus

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Tejaswi Thunugunta ◽  
Anand C. Reddy ◽  
Lakshmana Reddy D.C.
Keyword(s):  
Green Synthesis ◽  
Material Science ◽  
Low Cost ◽  
Nanoparticle Synthesis ◽  
Biological Synthesis ◽  
Synthesis Of Nanoparticles ◽  
The Past ◽  
Environmental Friendly ◽  
Physical Chemical ◽  
Biological Methods

AbstractIn the past few years, nanoparticles have been applied in various fields of science and technology, ranging from material science to biotechnology. Thus, the synthesis of nanoparticles can be considered as a dynamic area in research and application of nanoparticles. The different methods of nanoparticle synthesis include physical, chemical, and biological methods. Of these methods, the biological synthesis is to be comparatively widely used due to its advantages of being low cost, nontoxic and environmental friendly. Bio-applications of nanoparticles have pawed way for green synthesis of nanoparticles. In this review, we have provided brief information on various biological agents used for the synthesis of nanoparticles.

Biological Nanofactories: Using Living Forms for Metal Nanoparticle Synthesis

2020 ◽  
Vol 20 ◽  
Author(s):  
Shilpi Srivastava ◽  
Zeba Usmani ◽  
Atanas G. Atanasov ◽  
Vinod Kumar Singh ◽  
Nagendra Pratap Singh ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Oil Recovery ◽  
Environmental Remediation ◽  
Nanoparticle Synthesis ◽  
Metal Nanoparticle ◽  
Biological Synthesis ◽  
Synthesis Of Nanoparticles ◽  
Living Organisms ◽  
Biological Methods ◽  
Green Technique

: Metal nanoparticles are nanosized entities with dimensions of 1-100 nm that are increasingly in demand due to applications in diverse fields like electronics, sensing, environmental remediation, oil recovery and drug delivery. Metal nanoparticles possess large surface energy and properties different from bulk materials due to their small size, large surface area with free dangling bonds and higher reactivity. High cost and pernicious effects associated with the chemical and physical methods of nanoparticle synthesis are gradually paving the way for biological methods due to their eco-friendly nature. Considering the vast potentiality of microbes and plants as sources, biological synthesis can serve as a green technique for the synthesis of nanoparticles as an alternative to conventional methods. A number of reviews are available on green synthesis of nanoparticles but few have focused on covering the entire biological agents in this process. Therefore present paper describes the use of various living organisms like bacteria, fungi, algae, bryophytes and tracheophytes in the biological synthesis of metal nanoparticles, the mechanisms involved and the advantages associated therein.

scholarly journals Biological Synthesis of Metallic Nanoparticles from Different Plant Species

2021 ◽  
Author(s):  
Kalyan Singh Kushwah ◽  
Deepak Kumar Verma
Keyword(s):  
Green Synthesis ◽  
Material Science ◽  
Metallic Nanoparticles ◽  
Cerium Dioxide ◽  
Biological Synthesis ◽  
Hazardous Chemical ◽  
Chemical Effects ◽  
Wide Range ◽  
Biological Methods ◽  
Hazardous Compounds

Green chemistry for the synthesis of different nanoparticles (NPs) from metal has become a new and promising field of research in nanotechnology in recent years. The inspire applications of metal oxide NPs have attracted the interest of researchers around the world. Various physical, chemical and biological methods in material science are being adapted to synthesize different types of NPs. Green synthesis has gained widespread attention as a sustainable, reliable, and eco-friendly protocol for biologically synthesizing a wide range of metallic NPs. Green synthesis has been proposed to reduce the use of hazardous compounds and as a state of a harsh reaction in the production of metallic NPs. Plants extract used for biosynthesis of NPs such as silver (Ag), cerium dioxide (C2O2), copper oxide (CuO), Gold (Au), titanium dioxide (TiO2), and zinc oxide (ZnO). This review article gives an overview of the plant-mediated biosynthesis of NPs that are eco-friendly and have less hazardous chemical effects.

scholarly journals Honey Mediated Green Synthesis of Nanoparticles: New Era of Safe Nanotechnology

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Eranga Roshan Balasooriya ◽  
Chanika Dilumi Jayasinghe ◽  
Uthpala Apekshani Jayawardena ◽  
Ranasinghe Weerakkodige Dulashani Ruwanthika ◽  
Rohini Mendis de Silva ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Room Temperature ◽  
Nanoparticle Synthesis ◽  
Cost Effective ◽  
Synthesis Methods ◽  
New Era ◽  
Synthesis Of Nanoparticles ◽  
The Past ◽  
Gold Silver ◽  
Novel Concept

With the advent of nanotechnology, many related industries rapidly developed over the recent past. Generally, top-down and bottom-up approaches are the two major processes used to synthesize nanoparticles; most of these require high temperatures, vacuum conditions, and harsh/toxic chemicals. As a consequence, adverse effects impacted organisms including humans. Some synthesis methods are expensive and time-consuming. As a corollary, the concept of “green nanotechnology” emerged with the green synthesis of nanoparticles commencing a new epoch in nanotechnology. This involves the synthesis of nanomaterial from microorganisms, macroorganisms, and other biological materials. Honey is documented as the world’s oldest food source with exceptional medical, chemical, physical, and pharmaceutical values. Honey mediated green synthesis is a relatively novel concept used during the past few years to synthesize gold, silver, carbon, platinum, and palladium nanoparticles. Honey acts as both a stabilizing and a reducing agent and importantly functions as a precursor in nanoparticle synthesis. This method usually requires room temperature and does not produce toxic byproducts. In conclusion, honey mediated green synthesis of nanoparticles provides a simple, cost effective, biocompatible, reproducible, rapid, and safe method. The special activity of honey functionalized nanoparticles may provide valuable end products with numerous applications in diverse fields.

scholarly journals The Biological methods of selenium nanoparticles synthesis, their characteristics and properties

2020 ◽  
pp. 6-20
Author(s):  
O. Tsehmistrenko
Keyword(s):  
Metal Ions ◽  
Green Synthesis ◽  
Alternative Energy ◽  
Extracellular Polymeric Substances ◽  
Crop Yields ◽  
Production Optimization ◽  
Total Charge ◽  
Coating Agent ◽  
Synthesis Of Nanoparticles ◽  
Biological Methods

Nanotechnologies have an impact on every sphere of life, change approaches to environmental recovery, introduce new methods of disease analysis and prevention, treatment, drug delivery and gene therapy, affect the provision of environmentally friendly alternative energy sources, increase crop yields, animal and poultry productivity. Physical, chemical, biological methods of synthesis of nanoparticles, selenium in particular, their properties and the factors participating in reduction of metal ions to nanoparticles are considered. Limitations of nanoparticle synthesis inherent in the biological method (identification and isolation of bioactive fragment responsible for biomineralization of metal ions, analysis of ways to develop individual nanoparticles) and factors contributing to the intensification of nanoparticle production (optimization of pH, temperature, contact time, mixing degree) changes in the total charge of functional organic molecules on the cell wall). It has been proved that these factors affect the size, morphology, composition of nanoparticles and their efficiency during the synthesis. The model of green synthesis with the use of physicochemical means and their biomedical applications have been summarized. There are organisms used for the synthesis of NPs - terrestrial and marine bacteria, bacterial extracellular polymeric substances as bioreductants, fungi, yeast, algae, viruses, microorganisms. It has been demonstrated the biochemical ways of microorganisms in order to fight the toxicity of metals during the synthesis of nanoproducts and the factors that determine the toxicity of metals that are converted into nanoparticles (size, shape, coating agent, nanoparticle density and type of pathogen). The biological role of selenium and features of its influence on an organism in a nanoscale scale are shown. Key words: nanotechnologies, nanoselenium, bacteria, green synthesis, enzymes.

scholarly journals Green Chemistry Based Benign Routes for Nanoparticle Synthesis

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Parth Malik ◽  
Ravi Shankar ◽  
Vibhuti Malik ◽  
Nitin Sharma ◽  
Tapan Kumar Mukherjee
Keyword(s):  
Green Chemistry ◽  
Developing Economies ◽  
Nanoparticle Synthesis ◽  
Review Article ◽  
Synthesis Of Nanoparticles ◽  
The Past ◽  
Area Of Interest ◽  
Synthesis Routes ◽  
The Right ◽  
Scientific Fields

Green chemistry has been an eye catching area of interest since the past few years. With the problem of energy crisis looming high and its constraint being particularly vulnerable on the developing economies, the need for giving alternative traditional chemistry a serious consideration as well as adequate room for development has received significant boost through the coveted efforts of multidisciplinary and interdisciplinary scientific fields. Nanoscience has been the right field in this dimension as it opens up the door to multiple opportunities through enabling a number of chemical, biochemical, and biophysical transformations in a significantly easier and reliable manner. The use of nanoparticles has made the fields of catalysis, synthesis, and enzyme immobilizations as well as molecular interactions a lot much easier, rapid and easily controllable. This review article sheds light on the popular alternative synthesis routes being employed for the synthesis of nanoparticles, the pivotal being from microbes, plants, and chemical routes via sonication, microwaving, and many others.

Optimization of Biosynthesis of Silver Oxide Nanoparticles and Its Anticancer Activity

2017 ◽  
Vol 16 (05n06) ◽  
pp. 1750018 ◽  
Author(s):  
Vithiya Karunagaran ◽  
Kumar Rajendran ◽  
Shampa Sen
Keyword(s):  
Silver Oxide ◽  
Average Particle Size ◽  
Nanoparticle Synthesis ◽  
Biological Synthesis ◽  
Oxide Nanoparticles ◽  
Average Particle ◽  
Synthesis Of Nanoparticles ◽  
Silver Oxide Nanoparticles ◽  
Oxide Nanoparticle ◽  
Chang Liver

Silver oxide nanoparticle can be synthesized by chemical and biological methods. Biological synthesis has emerged as an exciting, ecofriendly approach. However, the process tends to be slow when we consider its industrial applicability. The development of reliable method for rapid synthesis of nanoparticles is one of the significant zones of interests in current nanotechnological research. In this paper, optimization of physiochemical parameters for rapid silver oxide nanoparticle synthesis using Bacillus thuringiensis SSV1 culture supernatant has been elucidated. Spherical-shaped silver oxide nanoparticles with an average particle size of 30[Formula: see text]nm were obtained. The cytotoxic effect of silver oxide nanoparticles was studied against HepG2 and Chang liver cell lines by MTT assay. These nanoparticles showed dose-dependent response on HepG2 (IC[Formula: see text]g/mL) and Chang liver cells (IC[Formula: see text]g/mL).

scholarly journals Biogenic Nanoparticles: Synthesis, Characterisation and Applications

2021 ◽  
Vol 11 (6) ◽  
pp. 2598
Author(s):  
Bilal Mughal ◽  
Syed Zohaib Javaid Zaidi ◽  
Xunli Zhang ◽  
Sammer Ul Hassan
Keyword(s):  
Nanoparticle Synthesis ◽  
Biogenic Synthesis ◽  
Daily Lives ◽  
Biochemical Sensors ◽  
Synthesis Of Nanoparticles ◽  
Nanoparticles Synthesis ◽  
The Stability ◽  
Biological Methods ◽  
Optimum Production ◽  
Biogenic Nanoparticles

Nanotechnology plays a big part in our modern daily lives, ranging from the biomedical sector to the energy sector. There are different physicochemical and biological methods to synthesise nanoparticles towards multiple applications. Biogenic production of nanoparticles through the utilisation of microorganisms provides great advantages over other techniques and is increasingly being explored. This review examines the process of the biogenic synthesis of nanoparticles mediated by microorganisms such as bacteria, fungi and algae, and their applications. Microorganisms offer a disparate environment for nanoparticle synthesis. Optimum production and minimum time to obtain the desired size and shape, to improve the stability of nanoparticles and to optimise specific microorganisms for specific applications are the challenges to address, however. Numerous applications of biogenic nanoparticles in medicine, environment, drug delivery and biochemical sensors are discussed.

Green synthesis of silver nanoparticles from Catunaregam tomentosa extract

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chanyapat Ittibenjapong ◽  
Prit Kanjanahitanon ◽  
Punnita Chaichamni ◽  
Sirirat Panich ◽  
Nuchutha Thamsumet
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Antioxidant Activities ◽  
Biological Synthesis ◽  
Surface Plasmon Resonance Peak ◽  
Plasmon Resonance Peak ◽  
Medical Supplies ◽  
Significant Difference ◽  
Size Stability ◽  
Biological Methods

Abstract Silver nanoparticles (AgNPs) have been widely used in many fields (e.g., sensors, medical supplies, food, cosmetics, medicines, etc.) due to their unique properties such as optical property, antibacterial property, and high conductivity. AgNPs are normally synthesized by chemical, physical, or biological methods. Among these methods, biological synthesis or green synthesis of AgNPs has drawn much attention since it is an easy and environmental-friendly method. Herein, AgNPs synthesized using Catunaregam tomentosa extracts were studied. The extracts obtained from different C. tomentosa fruit were found to be blue, green, and brown. It was found from the foam test and IR spectra that all extracts (blue, green, and brown extracts) contained saponins. According to the DPPH assay, the blue and the green extracts had the antioxidant activities of 84.47 ± 12.13 and 47.66 ± 2.86 mg ascorbic acid equivalent/g of C. tomentosa powder, respectively. This showed that the blue and the green extracts could act as reducing agents in AgNPs synthesis. The successfully synthesized AgNPs using C. tomentosa extracts showed the surface plasmon resonance peak at 400 nm corresponding to literatures. The particle sizes and zeta potential values measured by dynamic light scattering also indicated the size stability of the synthesized AgNPs during seven-day period with no significant difference (P > 0.05).

scholarly journals BIOLOGICAL SYNTHESIS OF KERATIN NANOPARTICLES FROM DOVE FEATHER (COLUMBA LIVIA) AND ITS APPLICATIONS

2019 ◽  
pp. 142-146
Author(s):  
NANTHAVANAN P ◽  
KANDASAMY ARUNGANDHI ◽  
SUNMATHI D ◽  
NIRANJANA J
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Visible Spectrum ◽  
Columba Livia ◽  
Salmonella Typhi ◽  
Biological Synthesis ◽  
X Ray Diffraction ◽  
Zone Of Inhibition ◽  
X Ray ◽  
Synthesis Of Nanoparticles

Objectives: The aim of the present study was to synthesize keratin nanoparticles from dove feathers. Methods: Crude keratin was extracted by chemical method. The protein content was estimated by Lowry’s method and it was found to be 0.18 mg/ml. The keratin nanoparticles were obtained using glutaraldehyde as cross-linking agent. Results: A single peak maximum at 270 nm corresponds to the surface plasmon resonance of keratin nanoparticles was observed in the ultraviolet-visible spectrum. The size of keratin nanoparticles was 78 nm. The crystalline size of keratin nanoparticles was 79.6 nm and it was obtained by X-ray diffraction. The antibacterial activity of crude keratin and keratin nanoparticles was determined which revealed that keratin nanoparticles showed higher zone of inhibition than crude keratin protein against Staphylococcus aureus and Salmonella typhi. Keratin nanoparticles showed higher antioxidant activity than crude keratin. Conclusion: Biological synthesis of nanoparticles has many advantages such as ecofriendly and low cost and can be synthesized in large scale. The keratin nanoparticles can be applied in wound dressing, biosorbent, and cosmetics.

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