Entropy-driven adsorption of carbon nanotubes on (0 0 1) and (1 1 1) surfaces of CeO2 islands grown on sapphire substrate

Kunsági‐Máté, Sándor; Nie, Jundan

doi:10.1016/j.susc.2010.01.011

Cited by 10 publications

(2 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This property has very important consequences in many applications. For example, according to our recent theoretical work [13], examinations of depositing CNTs onto a structured CeO 2 surface highlighted determinant role of the entropy during such interaction. However, if a rigid structure of nanotube dimer reaches the surface, the reduction of the freedom, therefore, reduction of the entropy becomes much lower compared to when the flexible individual nanotube adsorbs to the surface.…”

Section: Resultsmentioning

confidence: 95%

See 1 more Smart Citation

Modified dispersion of functionalized multi-walled carbon nanotubes in acetonitrile

Nie

Kunsági‐Máté

2010

Chemical Physics Letters

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 95%

“…In our recent work [13], we showed that the high reduction of the entropy during adsorption of carbon nanotubes onto the CeO 2 surface inhibits itself the high coverage of the substrate. Applying this idea to the case of liquid phase epitaxy (LPE), considerable adsorption of carbon nanotube monomers onto the surface cannot be predicted.…”

Section: Introductionmentioning

confidence: 97%

Modified dispersion of functionalized multi-walled carbon nanotubes in acetonitrile

Nie

Kunsági‐Máté

2010

Chemical Physics Letters

Self Cite

View full text Add to dashboard Cite

Antioxidant activity of omega-3 derivatives and their delivery via nanocages and nanocones: DFT and experimental in vivo investigation

2017

View full text Add to dashboard Cite

The antioxidant properties of omega-3 were investigated via experimental in vivo and theoretical methods. For experimental evaluation, oxidative stress was induced by 30 min bilateral renal ischemia and 24 h of reperfusion in male Sprague Dawley rats. The oxidative stress was evaluated through measuring malondialdehyde (MDA) and ferric reducing/antioxidant power (FRAP) levels in renal tissue. In theoretical methods, the reaction enthalpies of antioxidant mechanisms of omega-3 were calculated and the effects of NHMe, OMe, OH, Cl, and Me substituents on its antioxidant activity were investigated. Moreover, the omega-3 delivery potential by carbon and boron nitride nanocages and naocones were evaluated. The experimental results showed that omega-3 administration decreases MDA and increases FRAP levels after their changes by ischemia/reperfusion. Theoretical results indicated that NHMe and OMe substituents can significantly improve the antioxidant activity of omega-3. Also, boron nitride nanocone (BNNC) has higher |∆E| values, so it has higher potential for omega-3 delivery. Taken together, the new findings presented here indicate that omega-3 has anti-oxidative properties and NHMe and OMe substituents can improve its antioxidant activity. Moreover, adsorption of omega-3 on the surface of the studied nanostructures was exothermic, and BNNC with higher |∆Ead| values has higher potential for omega-3 delivery. Graphical abstract The interaction and adsorption of BNNC with omega-3 is exothermic and experimentally possible from the energetic viewpoint, so the BNNC with higher |∆E| and |∆G| values has higher potential for omega-3 delivery.

show abstract

Theoretical and Experimental in vivo Study of Antioxidant Activity of Crocin in Order to Propose Novel Derivatives with Higher Antioxidant Activity and Their Delivery via Nanotubes and Nanocones

2017

View full text Add to dashboard Cite

In this study, the antioxidant activity of crocin via experimental and theoretical methods was investigated. In order to induce oxidative stress, 30-min renal ischemia and 24-h reperfusion were used in male Wistar rats. Oxidative stress was assessed by measuring tissue malondialdehyde (MDA) and ferric reducing/antioxidant power (FRAP). The results showed that following ischemia/reperfusion, the level of MDA was increased and FRAP decreased. Both of these changes were alleviated by crocin administration. The bond dissociation enthalpy and ionization potential values as enthalpies of mechanism of antioxidant activity of crocin were calculated by density functional theory method. According to obtained results, the novel structures of crocin with higher antioxidant activity for synthesis were proposed. Results indicated that NH, OMe, and F substituents can improve the antioxidant activity of crocin. The crocin delivery via carbon and boron nitride nanotubes and nanocones was investigated. The results confirm that the calculated adsorption and free Gibbs energies of crocin on the surface of studied nanostructures were negative meaningfully, so these processes were exothermic and experimentally possible from the energetic viewpoint.

show abstract

Entropy-driven adsorption of carbon nanotubes on (0 0 1) and (1 1 1) surfaces of CeO2 islands grown on sapphire substrate

Cited by 10 publications

References 33 publications

Modified dispersion of functionalized multi-walled carbon nanotubes in acetonitrile

Modified dispersion of functionalized multi-walled carbon nanotubes in acetonitrile

Antioxidant activity of omega-3 derivatives and their delivery via nanocages and nanocones: DFT and experimental in vivo investigation

Theoretical and Experimental in vivo Study of Antioxidant Activity of Crocin in Order to Propose Novel Derivatives with Higher Antioxidant Activity and Their Delivery via Nanotubes and Nanocones

Contact Info

Product

Resources

About