Facile synthesis of “green” gold nanocrystals using cynarin in an aqueous solution

Katırcıoğlu, Zeynep; Şakalak, Hüseyin; Ulaşan, Mehmet; Gören, Ahmet; Yavuz, Mustafa Selman

doi:10.1016/j.apsusc.2014.03.013

Cited by 7 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Varma and co-workers in 2008, using coffee and tea extracts. 134 leaves, 139 Charanthus roseus leaf extract where eight metabolites were identified by GC-MS, 140 and Terminalia chebula aqueous extract where polyphenols act as reducing agents and their oxidized forms as stabilizers 141 To override both the dependence on fossil fuels and diminish CO 2 emissions associated to classical H 2 production processes, alternatives consisting in its generation from NH 3 , 147 biomass resources, 148 water splitting 149 or hydrogen transfer reactions are actively sought. 150 Concerning the choice of solvent used for hydrogenation applications, alternatives to classical organic solvents are actively pursued due to the risks associated to their high flammability, toxicity and volatility properties.…”

Section: Hydroxyl Compounds From Natural Sourcesmentioning

confidence: 99%

“…More recently, Kim and co-workers have reported the synthesis of PdNPs using fruit juices, leading to spherical PdNPs exhibiting uniform size distributions (between 2 and 25 nm depending on the juice type); they have proved that sugars and polyols present in the juices are in a first-time reducing agents, and inhibiting the agglomeration of nuclei in a last stage; the as-prepared PdNPs showed size-dependent SERS activities with applications in ultrasensitive detection of organic molecules. Cynarine, a hydroxycinnamic acid extracted from artichoke leaves, Charanthus roseus leaf extract where eight metabolites were identified by GC-MS, and Terminalia chebula aqueous extract where polyphenols act as reducing agents and their oxidized forms as stabilizers led to the formation of bigger PdNPs (ca. from 25 to 100 nm) in the presence of anisotropic particles .…”

Section: Synthesis Of Palladium-based Nanoparticles In Polyol Mediummentioning

confidence: 99%

See 1 more Smart Citation

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

2019

View full text Add to dashboard Cite

Alcohols, in particular polyols, are well-known for the synthesis of metal nanoparticles often acting as reducing agents, solvents, and stabilizers. Given not only their structural flexibility depending on the number of OH functions and their inherent H bonding interactions, but also the wide range of polyol molecular weights readily available, different physico-chemical properties (boiling point, polarity, viscosity) could be exploited towards the synthesis of well-defined nanomaterials. In particular, the relevance of the supramolecular structure of polyols has a fundamental impact on the formation of metal nanoparticles thereby favoring the dispersion of the nanoclusters. In the field of the metal-based nanocatalysis, palladium occupies a privileged position mainly due to its remarkable versatility in terms of reactivity representing a foremost tool in synthesis. In this review, we describe the controlled synthesis of Pd-based nanoparticles in polyol medium focusing on the progress in terms of tailoring size, morphology, structure, and surface state. Moreover, we discuss the use of 4.2. C(sp)-C(sp 2) Sonogashira cross-coupling 4.3. C(sp 2)-C(sp 2) Hiyama-Denmark cross-coupling 4.4. C(sp 2)-C(sp 2) Heck-Mizoroki cross-coupling 4.5. C(sp 2)-C(sp 2 /sp 3) Suzuki-Miyaura cross-coupling 4.5.1. In PEG and glycerol media 4.5.2. Solid-supported nanocatalysts 4.6. C(sp 2)-C(sp 2)-C(sp 2) Carbonylative Suzuki cross-coupling 4.7. C(sp 2)-C(sp 2) Ullmann-type homo-coupling 4.8. Miscellaneous: SiN and C-N amination reactions 5. Conclusions and outlook

show abstract

Section: Hydroxyl Compounds From Natural Sourcesmentioning

confidence: 99%

Section: Synthesis Of Palladium-based Nanoparticles In Polyol Mediummentioning

confidence: 99%

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

2019

View full text Add to dashboard Cite

show abstract

Nanotechnology in Plants

Öçsoy

Tasdemir

Mazicioglu

et al. 2018

Plant Genetics and Molecular Biology

View full text Add to dashboard Cite

The integration of nanotechnology in medicine has had a tremendous impact in the past few decades. The discovery of synthesis of nanomaterials (NMs) and their functions as versatile tools promoted various applications in nano-biotechnology and nanomedicine. Although the physical and chemical methods are still considered as commonly used methods, they introduce several drawbacks such as the use of toxic chemicals (solvent, reducing, and capping agents) and poor control of size, size distribution, and morphology, respectively. Additionally, the NMs synthesized in organic solvents and hydrophobic surfactants rapidly aggregate in aqueous solutions or under physiologic conditions, limiting their applications in medicine. Many of the phase-transfer strategies were developed and applied for the transfer of NMs into aqueous solutions. Although great efforts have been put into phase transfers, they mostly include expensive, time-consuming, intensive labor work, multi steps, and complicated procedures.Use of plant extracts in the biological synthesis method offers stark advantages over other biomolecules (protein, enzyme, peptide, and DNA). Plant extracts have been commonly used for food, medicine, NM synthesis, and biosensing. There are many viable techniques developed for the production of plant extracts with various contents based on their simplicity, cost, and the type of extract content. In this chapter, we conduct a comparative study for extract preparation techniques, the use of extracts for metallic single and hybrid nanoparticle (NP) synthesis, and their antimicrobial properties against pathogenic and plant-based bacteria. Graphical Abstract.

show abstract

Porphyran-capped gold nanoparticles modified carbon paste electrode: a simple and efficient electrochemical sensor for the sensitive determination of 5-fluorouracil

Lima

Calaça

Viana

et al. 2018

Applied Surface Science

View full text Add to dashboard Cite

Facile synthesis of “green” gold nanocrystals using cynarin in an aqueous solution

Cited by 7 publications

References 48 publications

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

Nanotechnology in Plants

Porphyran-capped gold nanoparticles modified carbon paste electrode: a simple and efficient electrochemical sensor for the sensitive determination of 5-fluorouracil

Contact Info

Product

Resources

About