Synthesis of gold nanoparticles in a biocompatible fluid from sputtering deposition onto castor oil

Wender, Heberton; Oliveira, Luciane F. de; Feil, Adriano F.; Lissner, E.; Migowski, Pedro; Meneghetti, Mário R.; Teixeira, Sérgio R.; Dupont, Jaı̈rton

doi:10.1039/c0cc01353f

Cited by 88 publications

(114 citation statements)

References 20 publications

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“…Green synthesis of chalcogenides nanomaterials using castor oil and its isolate ricinoleic acid as eco-friendly bio-based capping agents have recently been reported [73][74][75][76][77][78][79]. This is environmentally interesting because the use of castor oil and ricinoleic acid as both capping and dispersing agents, eliminate the need for the use of air-sensitive, toxic and expensive chemicals such as trioctylphosphine (TOP), trioctylphosphine oxide (TOPO) and alkyl amines.…”

Section: Green Synthesis Of Nanomaterials Using Castor Oil or Ricinolmentioning

confidence: 99%

Castor oil as a potential renewable resource for the production of functional materials

Mubofu

2016

Sustain Chem Process

169

124

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Castor oil is increasingly becoming an important bio-based raw material for industrial applications. The oil is nonedible and can be extracted from castor seeds from the castor plant belonging to the family Euphorbiaceae. The oil is a mixture of saturated and unsaturated fatty acid esters linked to a glycerol. The presence of hydroxyl group, a double bond, carboxylic group and a long chain hydrocarbon in ricinoleic acid (a major component of the oil), offer several possibilities of transforming it into variety of materials. The oil is thus a potential alternative to petroleum-based starting chemicals for the production of materials with variety of properties. Despite this huge potential, very little has recently been reviewed on the use of castor oil as a bio-resource in the production of functional materials. This review therefore highlights the potential of castor oil in the production of these diverse materials with their projected global market potential. The review gives the background information of castor oil and its geographical availability, the properties and its uses as bio-based resource for synthesis of various materials. The review further highlights on the use of castor oil or ricinoleic acid as a green capping agent in the synthesis of nanomaterials.

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Section: Green Synthesis Of Nanomaterials Using Castor Oil or Ricinolmentioning

confidence: 99%

Castor oil as a potential renewable resource for the production of functional materials

Mubofu

2016

Sustain Chem Process

169

124

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“…More details for the SAXS experiments can be found in the ESIw and elsewhere. 17 UV-Vis absorption spectroscopy was measured on a Varian Cary 100 spectrophotometer using 1 mm quartz cuvettes.…”

Section: Characterisationmentioning

confidence: 99%

“…In fact, recent reports suggest that NPs nucleate and grow on the IL surfaces, 16 as also observed for sputtering onto castor oil. 17 Thus, the chemical configuration of the IL surface and the energy of the sputtered atoms must play crucial roles in the formation of NPs.…”

Section: Introductionmentioning

confidence: 99%

On the formation of anisotropic gold nanoparticles by sputtering onto a nitrile functionalised ionic liquid

Wender

Migowski

Feil

et al. 2011

Phys. Chem. Chem. Phys.

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Sputtering deposition of gold onto the 1-(butyronitrile)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BCN)MIÁN(Tf) 2 ionic liquid (IL) has generated colloidal and stable gold nanospheres (AuNS) and gold nanodisks (AuND) in a bimodal size distribution. Upon increasing the sputtering discharge voltage, three distinct phenomena were observed: (i) the mean diameter of both AuNS and AuND decreased; (ii) the population with lower diameters increased and (iii) the formation of AuND disappeared at voltages higher than 340 V. By dissolving the colloidal gold nanoparticles (AuNPs) in isopropanol and dropping the product onto carbon-coated Cu grids, 2D and 3D superlattices tended to be formed, as observed by transmission electron microscopy (TEM). Therefore, the formation of AuND is probably related to a strong interaction between sputtered Au atoms of low kinetic energy and the nitrile groups orientated to the vacuum phase of the IL surface, which drives the preferential anisotropic lateral growth.

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“…Wender et al used castor oil, a biocompatible lowvolatile fluid that is composed mainly of a mixture of triglycerides predominantly derived from unsaturated and hydroxylated fatty acids, as a liquid sputtering medium for Au NP synthesis [33]. Sputter deposition of the Au target at 330 V for 300 s yielded Au NPs with diameters of 3.6 ± 1.0 nm.…”

Section: C-h-o-containing Polymersmentioning

confidence: 99%

“…First, metal NP synthesis using ionic liquids will be discussed, which includes the synthesis of single material NPs and the effect of sputtering conditions [19][20][21][22][23][24][25][26][27], various alloying strategies [15,23,24,28], and techniques for transferring synthesized NPs [29][30][31]. Subsequently, we discuss NP synthesis using low-volatile polymers, including the use of thiol compounds and transfer techniques [32][33][34][35][36][37][38][39]. Finally, potential applications of liquid medium sputtered NPs, such as their use as ORR electrocatalysts and Suzuki-Miyaura coupling reacScheme.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Nanoparticle Synthesis via Liquid Medium Sputtering and its Applications

Young¹,

Yoo²,

Jang³

2016

Journal of Electrochemical Science and Technology

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Nanoparticles (NPs), which have been investigated intensively as electrocatalysts, are usually synthesized by chemical methods that allow precise size and shape control. However, it is difficult to control the components and compositions of alloy NPs. On the other hand, the conventional physical method, sputtering with solid substrates, allows for facile composition control but size control is difficult. Recently, "liquid medium sputtering" has been suggested as an alternative method that is capable of combining the advantages of the chemical and conventional physical methods. In this review, we will discuss NP synthesis via the liquid medium sputtering technique using ionic liquid and low-volatile polymer media. In addition, potential applications of the technique, including the generation of oxygen reduction reaction electrocatalysts, will be discussed.

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Synthesis of gold nanoparticles in a biocompatible fluid from sputtering deposition onto castor oil

Abstract: The sputtering of Au targets onto castor oil generates stable spherical gold nanoparticles (AuNPs) of 2.4 to 3.8 nm. The AuNP size increases with the discharge voltage and the mechanism of nucleation and growth are related to the energy of the atoms/clusters ejected from the target.

Cited by 88 publications

References 20 publications

Castor oil as a potential renewable resource for the production of functional materials

Castor oil as a potential renewable resource for the production of functional materials

On the formation of anisotropic gold nanoparticles by sputtering onto a nitrile functionalised ionic liquid

Recent Progress in Nanoparticle Synthesis via Liquid Medium Sputtering and its Applications

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