Synthesizing aqueous fullerene colloidal suspensions by new solvent-exchange methods

Hilburn, Martha E; Murdianti, Befrika S.; Maples, Randall D.; Williams, Jason S.; Damron, Joshua T.; Kuriyavar, Satish I.; Ausman, Kevin D.

doi:10.1016/j.colsurfa.2012.03.010

Cited by 23 publications

(20 citation statements)

References 38 publications

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“…Derivatization and solubilization have been disregarded in this field. The most relevant techniques of AFD preparation are solvent exchange [11,14,15], dialysis [16], and mixing [17][18][19]. However, the total yield of fullerene transfer into water of 100 % has not yet been achieved, which leads to significant losses and increases for the cost of the final product, especially for EMFs.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of the solvent-exchange process for high-yield synthesis of aqueous fullerene dispersions

Mikheev¹,

Pirogova²,

Bolotnik³

et al. 2018

Nanosystems: Phys. Chem. Math.

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The ultrasound-assisted solvent-exchange technique for aqueous fullerene dispersions (AFD) of C 60 (10 −4 -10 −6 M) have been improved for high-yield synthesis, thereby achieving AFDs with total recovery over 90 %. Using ICP-AES, HPLC-UV, HGC-MS, the elemental and residual organic compounds have been estimated as not exceeding 3 ppm. The possible structure of fullerene clusters in AFD was assumed as {n[C 60 ]mC 6 H 5 COO − (m − x)Na + }xNa + .

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Section: Introductionmentioning

confidence: 99%

“…Apart from the yield, the main drawback for the solvent-exchange process is significant amounts of hazardous organic substances in AFDs [11,14,15]. However, not much attention is paid to the purity of the produced dispersions, which is unacceptable for biomedicine.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the solvent-exchange process for high-yield synthesis of aqueous fullerene dispersions

Mikheev¹,

Pirogova²,

Bolotnik³

et al. 2018

Nanosystems: Phys. Chem. Math.

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“…Fullerenes have been dispersed in pure water as stable colloids using functionalization, [83] solvent exchange, [84] or even after prolonged mixing of [60]fullerene (C 60 ) and water. [85] Deguchi et al developed a simple method for the dispersion of fullerenes by injecting a saturated THF solution of (11 of 29) 1602423 fullerene into water, followed by THF removal by purging gaseous nitrogen.…”

Section: Dispersion Of Cnms In Pure Watermentioning

confidence: 99%

Green Processing of Carbon Nanomaterials

Kawamoto

2016

Advanced Materials

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Carbon nanomaterials (CNMs) from fullerenes, carbon nanotubes, and graphene are promising carbon allotropes for various applications such as energy-conversion devices and biosensors. Because pristine CNMs show substantial van der Waals interactions and a hydrophobic nature, precipitation is observed immediately in most organic solvents and water. This inevitable aggregation leads to poor processability and diminishes the intrinsic properties of the CNMs. Highly toxic and hazardous chemicals are used for chemical and physical modification of CNMs, even though efficient dispersed solutions are obtained. The development of an environmentally friendly dispersion method for both safe and practical processing is a great challenge. Recent green processing approaches for the manipulation of CNMs using chemical and physical modification are highlighted. A summary of the current research progress on: i) energy-efficient and less-toxic chemical modification of CNMs using covalent-bonding functionality and ii) non-covalent-bonding methodologies through physical modification using green solvents and dispersants, and chemical-free mechanical stimuli is provided. Based on these experimental studies, recent advances and challenges for the potential application of green-processable energy-conversion and biological devices are provided. Finally, a conclusion section is provided summarizing the insights from the present studies as well as some future perspectives.

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“…Various other solvents have been used with or without THF for the production of sub-100 nm low dimensional C 60 nanoclusters. Other examples can be found elsewhere 37,38 . Recently Park et al 39 investigated the critical effect of solvent geometry on the morphology of C 60 prepared by a drop-drying process at room temperature.…”

Section: Nanostructured Crystalline Fullerenesmentioning

confidence: 99%