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The isotopic effects of C-13-labeled large carbon cage (C-70) fullerenes and their formation process
Wang CL(汪称龙); Ruan LF(阮龙飞); Chang XL(常雪灵); Yang ST(杨胜韬); Guo XH(郭喜红); Yuan H(袁慧); Shi WQ(石伟群); Sun BY(孙宝云); Zhao YL(赵宇亮); Wang, CL; Ruan, LF; Chang, XL; Zhang, XL; Yang, ST; Guo, XH; Yuan, H; Guo, CB; Shi, WQ; Sun, BY; Zhao, YL
Source PublicationRSC ADVANCES
Corresponding Author常雪灵 ; 杨胜韬
AbstractFullerene, C-60, and its derivatives, have been fully investigated and commercialized. The importance of large carbon cage-based fullerenes for biomedical applications was gradually recognized due to their fantastic biological effects. In nanotoxicology, the key detection techniques are able to retain the intrinsic structure and properties of nanomaterials in a biological background. However, there were puzzling questions regarding how to facilely obtain detectable fullerene nanomaterials and their formation process. In this study, C-13-enriched fullerenes of a large carbon cage, C-70, were synthesized on a large scale from a C-13-enriched raw carbon material by an arc-discharge method. The stable isotope C-13 was directly incorporated into the skeleton of the fullerene cages without destroying their intrinsic structures. The isotopic effects of C-13-labeled C-70 were investigated in detail. The amount of C-13 labelling of C-70 was about 7% higher than that of the natural abundance, which greatly improved the C-13 detection signal in isotope ratio mass spectrometry and gave an apparent 8-fold carbon nuclear magnetic resonance signal enhancement for the fullerenes. The C-13-enriched fullerenes showed significant isotopic effects, such as the strongest peak position shifting up (m/z > 840) and the Poisson distribution of the isotopic peaks in the mass spectra, and the migration or splitting of infrared and Raman characteristic peaks. When comparing the C-13 labelling amounts and the isotopic effects of C-13-enriched C-70 and those of C-13-enriched C-60, the formation dynamics of the fullerenes were different with different carbon cages; lower carbon cage fullerenes were easily generated in the arc-discharge process, and the C-13 stable isotopic effects in high carbon fullerenes were also slightly weak. Moreover, these important isotopic effects of the C-13-enriched fullerenes will facilitate the development of new analytical methods for carbon nanomaterials in vivo.
Subject AreaChemistry
Indexed BySCI ; ADS ; EI ; CA
WOS Research AreaChemistry, Multidisciplinary
WOS SubjectChemistry
WOS IDWOS:000361559700037
ADS Bibcode2015RSCAd...576949W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015RSCAd...576949W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015RSCAd...576949W/citations
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Wang CL,Ruan LF,Chang XL,et al. The isotopic effects of C-13-labeled large carbon cage (C-70) fullerenes and their formation process[J]. RSC ADVANCES,2015,5(94):76949-76956.
APA 汪称龙.,阮龙飞.,常雪灵.,杨胜韬.,郭喜红.,...&Zhao, YL.(2015).The isotopic effects of C-13-labeled large carbon cage (C-70) fullerenes and their formation process.RSC ADVANCES,5(94),76949-76956.
MLA 汪称龙,et al."The isotopic effects of C-13-labeled large carbon cage (C-70) fullerenes and their formation process".RSC ADVANCES 5.94(2015):76949-76956.
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