Synthesis and Applications of Noble Metal Nanoparticles: A Review

Pareek, Vikram; Bhargava, Arpit; Gupta, Rinki; Jain, N. K.; Panwar, Jitendra

doi:10.1166/asem.2017.2027

Cited by 168 publications

(80 citation statements)

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“…The use of nanoparticles science is completely exhibit an improved novel properties compared with larger particles of the bulk materials due to the variations in the particles size, morphology and distribution. Nowadays, noble metals like silver, gold and platinum are commonly used in green chemistry without using toxic chemicals via a method involve use of environmentally friendly processes as a simple and viable alternative to synthetic chemicals and physical processes [35] .Several researchers reported the biosynthesis and possible applications of metal nanoparticles by plant leaf extracts [36].…”

Section: Introductionmentioning

confidence: 99%

The Conquering influence of the Nano extracts of pomegranate peels and pistachio leaves in amelioration of acute liver failure

Hassan¹,

Hammam

Awadallah³

et al. 2020

Preprint

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ObjectiveAcute liver failure (ALF) is a clinical condition with an unclear history of pathophysiology, making it a challenging task for scientists to reverse the disease in its initial phase and to help the liver re-function as usual: this study was proposed to estimate the hepatoprotective effects of Punicagranatum peel and Pistaciaatlantica leaves as a multi-rich antioxidants ingredients either in their normal and/or in their nano forms against thioacetamide induced acute liver failure in a rodent model.MethodSixty male Wistar rats were divided into six equal groups, the first group employed as a control; the second group was given a dose of thioacetamide (TAA)-350 mg/bwip., from the third to the sixth group received TAA □ 2ml of 100gm of aqueous extracts of PunicagranatumL and Pistaciaatlantica either in their normal and/or Nano forms consecutively along 2 weeks.Resultsrecorded significant elevation in liver enzymes, lipid profiles, LPO and NO with marked significant decrease in GSH and SOD accompanied by elevation in inflammatory cytokine (IL6,TNF-α and AFP) in addition to a noticeable increase in HSP70 level & degradation in DNA respectively in TAA challenged group. However significant and subsequent amelioration of most of the impaired markers has been observed with ipnano treatment of both extracts.ConclusionThe current results highlighted the high performance of both plant nano extracts and their hepatoprotective impact and their possible therapeutic role in the amelioration of TAA induced acute liver failure in experimental animals.

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Section: Introductionmentioning

confidence: 99%

The Conquering influence of the Nano extracts of pomegranate peels and pistachio leaves in amelioration of acute liver failure

Hassan¹,

Hammam

Awadallah³

et al. 2020

Preprint

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“…Besides the fundamental interest on the individual NPs properties, research has been dedicated also to the synthesis of new supramolecules containing metal NPs that act as optical antennas (Bharadwaj et al, 2009;Novotny and Hecht, 2006), synthesis and characterization of metaldielectric photonic nanocomposites (de Araújo and Kassab, 2016;Kassab and de Araújo, 2019), as well as fabrication of metamaterials based on metal nanostructures (Lee et al, 2014;Chen et al, 2016;Menezes et al, 2019;Yeshchenko et al, 2019). Surface-enhanced Raman spectroscopy, enhanced photoluminescence, biosensing, photovoltaic cells and thermotherapy are examples of very active areas in many laboratories (see for example: Qin and Bischof, 2012;Saha et al, 2012;Pareek et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Controlling light with light in silver-nanospheres and gold-nanorods colloids

Araújo¹,

Reyna²,

Oliveira³

2019

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A review is presented on recent research that demonstrate the control of light-by-light in colloids containing silver-nanospheres (Ag-NS) and gold-nanorods (Au-NR). The presentation is based on experiments performed with pulsed lasers by exploiting the ultrafast electronic nonlinearity of samples exhibiting cubic-quintic nonlinearities. Guiding and confinement of light induced by optical vortex solitons in colloidal suspensions of Ag-NS, and nonlinear processes of light scattering, absorption and refraction in colloids with Au-NR were investigated in the experiments. The results are analyzed by numerical simulations based on modified nonlinear Schrödinger equations. The developments herein discussed are in the forefront of interest for plasmonic applications with metal nanoparticles.

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“…Metal nanoclusters have attracted considerable attention of materials scientists and engineers due to their potential applications in diverse fields ranging from energy, environment, and biology to industry . Generally, the physical and chemical properties of nanoclusters strongly depend on cluster size, shape, morphology, and charge states .…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, noble metal nanoclusters (NMNCs) possess some distinct physicochemical properties from their bulk counterpart, which is related to their high surface‐to‐volume ratio, large number of low‐coordinated surface atoms and discrete electronic states . NMNCs are easily surface‐functionalized, which endows them with superiority in advanced application fields like catalysis, sensors, medicine, optoelectronics, and biotechnology . Experimentalists focus on the preparation, characterization, functionalization, and applications of NMNCs, while theoreticians devote to the calculations for structural, electronic, and optical properties of NMNCs, as well as their interactions with molecules, light, electrons, and other nanostructures .…”

Section: Introductionmentioning

confidence: 99%

“…NMNCs are easily surface‐functionalized, which endows them with superiority in advanced application fields like catalysis, sensors, medicine, optoelectronics, and biotechnology . Experimentalists focus on the preparation, characterization, functionalization, and applications of NMNCs, while theoreticians devote to the calculations for structural, electronic, and optical properties of NMNCs, as well as their interactions with molecules, light, electrons, and other nanostructures . Among the above studies, water–metal interfaces are ubiquitous and of utmost importance in environment, biological processes, and diverse technological fields …”

Section: Introductionmentioning

confidence: 99%

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Quantum mechanical studies of full‐shell noble metal nanoclusters in water

Xia

Shao

2018

Int J of Quantum Chemistry

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Water-metal interfaces are ubiquitous, but their underlying physicochemical principles remain elusive. In this work, we performed scalar-relativistic and dispersion-corrected first-principle calculations for full-shell noble metal nanoclusters in water for characterizing their electronic interactions. With increasing nanocluster (NC) size, the average bond lengths of Ag and Au NCs decrease due to their strong relative effects, while those of Pd and Pt NCs increase normally. The calculated Löwdin net atomic charges show that naked full-shell M x (M is denoting Ag, Au, Pd, and Pt with x = 13, 55, 147, respectively) nanoclusters have core-shell charge separations with positively charged core and negatively charged surface. Ag and Au NCs have higher charge separations with their well delocalized s-electrons as compared with Pd and Pt NCs. The charged surface noble metal atoms of nanoclusters gain a small amount of electrons from neighbor oxygen atoms of water. The electronic structure analysis manifests a mixing state of hybrid s-p-d orbitals of noble metal nanoclusters with O_p states of water, which gives rise to the electronic interactions of dative-bond character between noble metal nanoclusters and water. Such a kind of electronic interaction leads to charge transfer from neighbor oxygen atoms of water to surface noble metal atoms. These findings have an implication for those researches and applications in association with noble metal nanoclusters in liquid environments. K E Y W O R D S first-principle, noble metal nanocluster, water-metal interface

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Synthesis and Applications of Noble Metal Nanoparticles: A Review

Cited by 168 publications

References 0 publications

The Conquering influence of the Nano extracts of pomegranate peels and pistachio leaves in amelioration of acute liver failure

The Conquering influence of the Nano extracts of pomegranate peels and pistachio leaves in amelioration of acute liver failure

Controlling light with light in silver-nanospheres and gold-nanorods colloids

Quantum mechanical studies of full‐shell noble metal nanoclusters in water

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