Potential of Spectroscopic Techniques in the Characterization of “Green Nanomaterials”

Sharma, Gaurav; Pandey, Sonika; Ghatak, Somenath; Watal, Geeta; Prashant, K.

doi:10.1016/b978-0-12-811487-2.00003-7

Cited by 18 publications

(11 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wet-chemical processes are commonly used methods for synthesizing NPs, and implicate that NPs are grown in liquid media in the presence of several reactants, reducing and stabilizing/protecting agents (e.g., capping agents/ligands). Typically, NPs are synthesized by chemical reduction either by organic or inorganic reducing agents, via the colloidal route or by sol-gel method [ 32 , 33 , 34 ]. Although these methods yield high production of NPs at a low cost, they also contain some drawbacks (e.g., use of hazardous solvents, processing of harmful by-products and contamination from precursor chemicals) [ 32 ].…”

Section: General Methods For Synthesizing Nanoparticles With Tailomentioning

confidence: 99%

“…Physical synthesis of NPs involves various methods such as ultrasonication, electron beam, ion implantation, laser radiation, spray pyrolysis and vapor phase [ 34 ]. However, these physical methods have some drawbacks that make them less suitable for synthesizing NPs (e.g., high cost, low production rate, use of a huge amount of energy for maintaining the high temperature and pressure) [ 32 ].…”

Section: General Methods For Synthesizing Nanoparticles With Tailomentioning

confidence: 99%

See 1 more Smart Citation

Green and Cost-Effective Synthesis of Metallic Nanoparticles by Algae: Safe Methods for Translational Medicine

et al. 2020

View full text Add to dashboard Cite

Metal nanoparticles (NPs) have received much attention for potential applications in medicine (mainly in oncology, radiology and infectiology), due to their intriguing chemical, electronical, catalytical, and optical properties such as surface plasmon resonance (SPR) effect. They also offer ease in controlled synthesis and surface modification (e.g., tailored properties conferred by capping/protecting agents including N-, P-, COOH-, SH-containing molecules and polymers such as thiol, disulfide, ammonium, amine, and multidentate carboxylate), which allows (i) tuning their size and shape (e.g., star-shaped and/or branched) (ii) improving their stability, monodispersity, chemical miscibility, and activity, (iii) avoiding their aggregation and oxidation over time, (iv) increasing their yield and purity. The bottom-up approach, where the metal ions are reduced in the NPs grown in the presence of capping ligands, has been widely used compared to the top-down approach. Besides the physical and chemical synthesis methods, the biological method is gaining much consideration. Indeed, several drawbacks have been reported for the synthesis of NPs via physical (e.g., irradiation, ultrasonication) and chemical (e.g., electrochemisty, reduction by chemicals such as trisodium citrate or ascorbic acid) methods (e.g., cost, and/ortoxicity due to use of hazardous solvents, low production rate, use of huge amount of energy). However, (organic or inorganic) eco-friendly NPs synthesis exhibits a sustainable, safe, and economical solution. Thereby, a relatively new trend for fast and valuable NPs synthesis from (live or dead) algae (i.e., microalgae, macroalgae and cyanobacteria) has been observed, especially because of its massive presence on the Earth’s crust and their unique properties (e.g., capacity to accumulate and reduce metallic ions, fast propagation). This article discusses the algal-mediated synthesis methods (either intracellularly or extracellularly) of inorganic NPs with special emphasis on the noblest metals, i.e., silver (Ag)- and gold (Au)-derived NPs. The key factors (e.g., pH, temperature, reaction time) that affect their biosynthesis process, stability, size, and shape are highlighted. Eventually, underlying molecular mechanisms, nanotoxicity and examples of major biomedical applications of these algal-derived NPs are presented.

show abstract

Section: General Methods For Synthesizing Nanoparticles With Tailomentioning

confidence: 99%

Section: General Methods For Synthesizing Nanoparticles With Tailomentioning

confidence: 99%

Green and Cost-Effective Synthesis of Metallic Nanoparticles by Algae: Safe Methods for Translational Medicine

et al. 2020

View full text Add to dashboard Cite

show abstract

“…There are three methods that are generally used for the synthesis of SeNPs and these are the physical, (Iravani, 2011; Jagadish et al ., 2018), chemical (Khiralla & El‐Deeb, 2015; Hosnedlova et al ., 2018) and biological method (Sharma et al ., 2017; Skalickova et al ., 2017; Wadhwani et al ., 2017; Rekha et al ., 2019). The physical method involves the use of hydrothermal techniques, UV radiation and laser ablation (Wadhwani et al ., 2016).…”

Section: Synthesis Of Selenium Nanoparticlesmentioning

confidence: 99%

“…The physical method involves the use of hydrothermal techniques, UV radiation and laser ablation (Wadhwani et al ., 2016). In the chemical method, organic or inorganic agents are used to reduce selenium salts into SeNPs (Sharma et al ., 2017).…”

Section: Synthesis Of Selenium Nanoparticlesmentioning

confidence: 99%

“…Green chemistry procedures place emphasis on the use of biological systems which include microorganisms (Saxena et al ., 2012), plants and plant extracts (Sharma et al ., 2017; Skalickova et al ., 2017). Biological systems are used as capping, reducing and stabilising agents in replacement of chemicals (He et al , 2019).…”

Section: Synthesis Of Selenium Nanoparticlesmentioning

confidence: 99%

See 1 more Smart Citation

Advances in green synthesis of selenium nanoparticles and their application in food packaging

Ndwandwe

Malinga

Kayitesi

et al. 2020

Int J of Food Sci Tech

View full text Add to dashboard Cite

show abstract

Synthesis and Characterization of Zinc Oxide Nanoparticles and Their Impact on Plants

Iranbakhsh

Ardebili

2021

Nanotechnology in the Life Sciences

View full text Add to dashboard Cite

Potential of Spectroscopic Techniques in the Characterization of “Green Nanomaterials”

Cited by 18 publications

References 80 publications

Green and Cost-Effective Synthesis of Metallic Nanoparticles by Algae: Safe Methods for Translational Medicine

Green and Cost-Effective Synthesis of Metallic Nanoparticles by Algae: Safe Methods for Translational Medicine

Advances in green synthesis of selenium nanoparticles and their application in food packaging

Synthesis and Characterization of Zinc Oxide Nanoparticles and Their Impact on Plants

Contact Info

Product

Resources

About