Polyhydroxy fullerenes

Georgieva, Angelina; Pappu, Vijay; Krishna, Vijay; Georgiev, Pando; Ghiviriga, Ion; Indeglia, Paul A.; Xu, Xin; Fan, Z. Hugh; Koopman, Ben; Pardalos, Pãnos M.; Moudgil, Brij M.

doi:10.1007/s11051-013-1690-6

Cited by 21 publications

(17 citation statements)

References 19 publications

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“…However, the determination of the number of -OH groups requires both tedious work and application of numerous analytical techniques, too expensive even in the case of pure fullerenol. 26 In order to assure complete removal of alkaline ions, the reaction product should be transformed into an acidic form on a strongly acidic ion exchange resin. Still, this provokes deterioration of the reaction product, probably due to the transformation of the vicinal hydroxy groups to the corresponding ketone structure, 19 thus changing the amount of hydrogen atoms present in the sample.…”

Section: Resultsmentioning

confidence: 99%

“…While the latter technique is rather sensitive to the presence of reactants (e.g. tetrabutylammonium hydroxide) used in the synthesis of fullerenols, 26 it is of no practical help when physico-chemical characterization of fullerenol and its by-products is in question. 17 Therefore, such spectra can be used only as an additional support for assumed hydroxylation, rather than an argument against it.…”

Section: Resultsmentioning

confidence: 99%

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Basic hydrolysis of fullerene-based esters: a tiny step away from nucleophilic addition to fullerene

Cerar

Cerkovnik

2015

ACSi

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Direct nucleophilic addition of -OH groups on the C 60 skeleton in the basic hydrolysis of ethyl ester of T h -symmetric fullerenehexamalonic acid (T h -FHMA), leading to the formation of a hybrid with features of T h -FHMA and fullerenol, has been observed as an important side reaction. The hydroxylation takes place at considerably milder conditions as those usually used in the synthesis of C 60 fullerenols. UV/Vis and IR spectroscopy were successfully used as a fast monitoring tool which might be of help also in other investigations where additions on C 60 skeleton of molecules with distinct absorption spectra take place.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Basic hydrolysis of fullerene-based esters: a tiny step away from nucleophilic addition to fullerene

Cerar

Cerkovnik

2015

ACSi

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“…The undissolved residue again was washed in distilled water and dried (sample 2) [7]. This method may be also use for fictionalization of fullerene and endohedral metal fullerenes [8].…”

Section: Methodsmentioning

confidence: 99%

Nanodispersed Powders of Fe-Ni Particles with Carbon Shell

Чурилов¹,

Глушенко²,

Комогорцев³

et al. 2017

J. Sib. Fed. Univ., Math. phys.

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The initial carbon condensate containing nickel-iron nanoparticles with a graphite conversion was synthesized in the high-frequency carbon-helium arc plasma at ambient pressure. The nickel-iron particles were extracted by the treatment of the carbon condensate with nitric and hydrochloric acids. Undissolved residue and dissolved sample were received. Undissolved residue has both the structure and magnetic properties of (MR/Ms = 0.30, Hc = 270 Oe). Lack of hysteresis loops for the dissolved sample shown that metals are in the paramagnetic state.

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“…In this regard, polyhydroxy fullerenes (PHF) have shown their potential use for cancer imaging [63]. In addition, it was observed that PHF nanoparticles functionalized with amines (PHF-NH 2 ) were soluble in water and exhibited green emission with a quantum yield of ∼17%.…”

Section: Contrast Agentmentioning

confidence: 99%

Carbon Nanomaterials for Breast Cancer Treatment

Casais-Molina

Cab

Canto

et al. 2018

Journal of Nanomaterials

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Currently, breast cancer is considered as a health problem worldwide. Furthermore, current treatments neither are capable of stopping its propagation and/or recurrence nor are specific for cancer cells. Therefore, side effects on healthy tissues and cells are common. An increase in the efficiency of treatments, along with a reduction in their toxicity, is desirable to improve the life quality of patients affected by breast cancer. Nanotechnology offers new alternatives for the design and synthesis of nanomaterials that can be used in the identification, diagnosis, and treatment of cancer and has now become a very promising tool for its use against this disease. Among the wide variety of nanomaterials, the scientific community is particularly interested in carbon nanomaterials (fullerenes, nanotubes, and graphene) due to their physical properties, versatile chemical functionalization, and biocompatibility. Recent scientific evidence shows the potential uses of carbon nanomaterials as therapeutic agents, systems for selective and controlled drug release, and contrast agents for diagnosing and locating tumors. This generates new possibilities for the development of innovative systems to treat breast cancer and can be used to detect this disease at much earlier stages. Thus, applications of carbon nanomaterials in breast cancer treatment are discussed in this article.

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Polyhydroxy fullerenes

Cited by 21 publications

References 19 publications

Basic hydrolysis of fullerene-based esters: a tiny step away from nucleophilic addition to fullerene

Basic hydrolysis of fullerene-based esters: a tiny step away from nucleophilic addition to fullerene

Nanodispersed Powders of Fe-Ni Particles with Carbon Shell

Carbon Nanomaterials for Breast Cancer Treatment

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