Synthesis of platinum nanoparticles using dried Anacardium occidentale leaf and its catalytic and thermal applications

Sheny, D.S.; Philip, Daizy; Mathew, Jyothis

doi:10.1016/j.saa.2013.05.028

Cited by 96 publications

(42 citation statements)

References 24 publications

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“…The material Pd-300 was used as a catalyst for Suzuki–Miyaura reactions. High yield of aryliodides and arylbromides [52] were obtained which were higher than palladium nanoparticles used for similar reactions. This catalyst is far superior to commercially available palladium catalyst (10 % Pd/C) and Pd(OAc) 2 and, hence, can be used as a potential catalyst of future.…”

Section: Reviewmentioning

confidence: 99%

“…Sheny et al [52] have reported the biosynthesis of palladium nanoparticles from dried leaf powder of Anacardium occidentale at pH 6–9. TEM images showed irregular rod-shaped particles which were crystalline.…”

Section: Reviewmentioning

confidence: 99%

“…Platinum nanoparticles from tea polyphenol acting both as reducing and capping agent have been fabricated [52]. These functionalized nanoparticles of 30–60 nm were crystalline in nature with face-centred cubic structure.…”

Section: Reviewmentioning

confidence: 99%

“…For instance, the herbal extracts, generally used for green synthesis of nanoparticles, contain phenols, sugars and acids which act as reducing as well as stabilizing agents. Such phytochemicals in combination with cis-platin synergise apoptosis in breast cancer and cervical cancer [52, 72, 84]. A combination of platinum nanoparticles with ion irradiation has been found to enhance the efficiency of cancer therapy [85].…”

Section: Reviewmentioning

confidence: 99%

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Green Synthesis, Characterization and Uses of Palladium/Platinum Nanoparticles

2016

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Biogenic synthesis of palladium (Pd) and platinum (Pt) nanoparticles from plants and microbes has captured the attention of many researchers because it is economical, sustainable and eco-friendly. Plant and their parts are known to have various kinds of primary and secondary metabolites which reduce the metal salts to metal nanoparticles. Shape, size and stability of Pd and Pt nanoparticles are influenced by pH, temperature, incubation time and concentrations of plant extract and that of the metal salt. Pd and Pt nanoparticles are broadly used as catalyst, as drug, drug carrier and in cancer treatment. They have shown size- and shape-dependent specific and selective therapeutic properties. In this review, we have discussed the biogenic fabrication of Pd/Pt nanoparticles, their potential application as catalyst, medicine, biosensor, medical diagnostic and pharmaceuticals.

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Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

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Green Synthesis, Characterization and Uses of Palladium/Platinum Nanoparticles

2016

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“…), platinum (Sheny et al . ) and palladium (Dauthal & Mukhopadhyay ). Among the various metal particles, gold nanoparticles (GNPs) are of interest due to their exceptional optoelectronic and electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Biogenic synthesis of gold nanoparticle using fractioned cellular components from eukaryotic algae and cyanobacteria

Roychoudhury

Bhattacharya

Dasgupta

et al. 2016

Phycological Research

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Summary In the present investigation fractioned cellular components like intact pigment bearing thylakoids/chloroplasts, carotenoids, protein, polysaccharides were extracted from the cyanobacterium Anabaena sphaerica and green alga Chlorococcum infusionum. Each of these extracts was used separately in search for efficient reducing agents during gold nanoparticle (GNP) production in pro‐ and eukaryotic algal cell systems. The whole biomass and extracted compounds or cellular structures were exposed in 25 mg L−1 aqueous hydrogen tetrachloroaurate solutions separately at room temperature. Isolated viable chloroplasts from C. infusionum and thylakoids from A. sphaerica were found to be able to reduce gold ions. The protein extracts of both strains were also able to synthesize GNP at 4°C. Extracted polysaccharides of the two strains responded differently. Polysaccharides from A. sphaerica showed positive response in GNP synthesis, whereas no change was observed for C. infusionum. The carotenoids extracts from both strains acted like an efficient reducing agent. Initially the reducing efficiency of these extracted components was confirmed by the appearance of purple color in biomass or in experimental media. The GNPs, synthesized within the biomass were extracted by sonication with sodium citrate. The UV–vis spectroscopy of extracted purple colored suspensions and media showed the absorption bands at approximately 530–540 nm indicating a strong positive signal of GNP synthesis. Transmission electro n microscopy determined the size and shapes of the particles. The X‐ray diffraction study of the synthesized GNP revealed that the 2θ values appeared at 38.2°, 44.5°, 64.8° and 77.8°. Amongst all, isolated thylakoids and chloroplast showed only spherical GNP production with variable size range at pH 4. Monodisperse GNPs were also synthesized by isolated thylakoids and chloroplast at pH 9. A detailed morphological change of gold treated biomass was revealed employing scanning electron microscopy. The fluorescent property of gold loaded cells was studied by fluorescence microscopy.

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Green Synthesis of Metallic Nanoparticles Using Biopolymers and Plant Extracts

El‐Sherbiny¹,

Salih²

2018

Green Metal Nanoparticles

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Synthesis of platinum nanoparticles using dried Anacardium occidentale leaf and its catalytic and thermal applications

Cited by 96 publications

References 24 publications

Green Synthesis, Characterization and Uses of Palladium/Platinum Nanoparticles

Green Synthesis, Characterization and Uses of Palladium/Platinum Nanoparticles

Biogenic synthesis of gold nanoparticle using fractioned cellular components from eukaryotic algae and cyanobacteria

Green Synthesis of Metallic Nanoparticles Using Biopolymers and Plant Extracts

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