Protein-functionalized carbon nanotube-polymer composites

Bhattacharyya, S.; Sinturel, C.; Salvetat, J. P.; Saboungi, M.-L.
March 2005
Applied Physics Letters;3/14/2005, Vol. 86 Issue 11, p113104
Academic Journal
We have developed fully integrated nanotube composite materials through the functionalization of multiwall carbon nanotubes (MWCNTs) by covalently attaching ferritin protein molecules onto the surface of MWCNTs. The investigation of the thermomechanical behavior was performed by dynamic mechanical thermal analysis. Results demonstrated dramatic enhancement in the mechanical properties of PVA, for example a 100%–110% increase in the modulus with the addition of 1.5 wt % of ferritin functionalized MWCNTs. Samples containing functionalized nanotubes showed a stronger influence on glass transition temperature in comparison to composites containing the same amount of nonfunctionalized nanotubes.


Related Articles

  • Definitive angiographic detection of subarachnoid haemorrhage compared with laboratory assessment of intracranial bleed in CT-negative patients. O'Connell, Daniel M; Watson, Ian D // Annals of Clinical Biochemistry;May2003, Vol. 40 Issue 3, p269 

    Background: Between 2·5% and 5% of cases of subarachnoid haemorrhage (SAH) give negative results for computed tomography (CT) scanning. Recent UK guidelines make recommendations as to standardization of laboratory methodology for the detection of SAH in individuals with a negative CT scan. We...

  • Assessment of iron absorption from ferric trimaltol. Reffitt, David M.; Burden, Trevor J.; Seed, Paul T.; Wood, John; Thompson, Richard P. H.; Powell, Jonathan J. // Annals of Clinical Biochemistry;Jul2000, Vol. 37 Issue 4, p457 

    Therapeutic iron compounds have limited absorption and often have side-effects, which limits patient compliance. Iron trimaltol is a novel, stable complex, formed between ferric iron (Fe3+) and maltol (3-hydroxy-2-methyl-4- pyrone), and is effective in the treatment of iron deficiency anaemia...

  • Facile synthesis and high rate capability of Li4Ti5O12/C composite materials with controllable carbon content. Guixin Wang; Kangping Yan; Zuolong Yu; Meizhen Qu // Journal of Applied Electrochemistry;Apr2010, Vol. 40 Issue 4, p821 

    A modified ball-milling-assisted green solid reaction method is provided to prepare Li4Ti5O12/C composite materials with controllable carbon content. Thermal analysis was utilized to investigate the reaction process and the temperature for eliminating carbon. The added carbon and the time for...

  • Evaluation of composites light-curing at different times and distances of irradiation. Ferrante, Maurizio; Petrini, Morena; Trentini, Paolo; Spoto, Giuseppe // Journal of Thermal Analysis & Calorimetry;Feb2012, Vol. 107 Issue 2, p757 

    The aim of this study is to evaluate light-curing composites polymerization quality (monomer/polymer) carried out at different times and distances of irradiation through the thermal analysis (TG-DTA). Samples have been polymerized at 20, 40 and 60 s (0-2-4-6-8 mm) through a constant...

  • Effect of Mentha piperita (Labiatae) and Mentha spicata (Labiatae) on iron absorption in rats. Akdogan, Mehmet; Gultekin, Fatih; Yontem, Mustafa // Toxicology & Industrial Health;2004, Vol. 20 Issue 6-10, p119 

    Aim: The effect of Mentha piperita (Labiatae) and Mentha spicata (Labiatae) teas, which contain different phenol compounds, on iron metabolism was studied. These teas grow in different areas of the city of Isparta, Turkey. These herbals were given to the rats in tea. Methods: Forty-eight male...

  • Structure/Function Overview of Proteins Involved in Iron Storage and Transport. Sargent, Peter J.; Farnaud, Sebastien; Evans, Robert W. // Current Medicinal Chemistry;2005, Vol. 12 Issue 23, p2683 

    Iron, the major trace element in the body, is an essential component of many proteins and enzymes. As low-molecular-weight iron is potentially toxic to cells, higher organisms express a number of proteins for the transport and storage of iron. We review our current understanding of the...

  • Abnormally high serum ferritin levels among professional road cyclists. Zotter, H.; Robinson, N.; Zorzoli, M.; Schattenberg, L.; Saugy, M.; Mangin, P. // British Journal of Sports Medicine;Dec2004, Vol. 38 Issue 6, p704 

    Background: An international, longitudinal medical follow up examination of male professional road cyclists revealed excessively elevated serum ferritin levels. Objective: To evaluate the importance of elevated ferritin values among professional cyclists, their relationship with age and...

  • Ferroportin-mediated mobilization of ferritin iron precedes ferritin degradation by the proteasome. De Domenico, Ivana; Vaughn, Michael B; Li, Liangtao; Bagley, Dustin; Musci, Giovanni; Ward, Diane M; Kaplan, Jerry // EMBO Journal;11/15/2006, Vol. 25 Issue 22, p5396 

    Ferritin is a cytosolic molecule comprised of subunits that self-assemble into a nanocage capable of containing up to 4500 iron atoms. Iron stored within ferritin can be mobilized for use within cells or exported from cells. Expression of ferroportin (Fpn) results in export of cytosolic iron and...

  • Magneto-Optics of Ferritin. Dobek, Andrzej // AIP Conference Proceedings;1/5/2010, Vol. 1204 Issue 1, p143 

    Ferritins are the metalloproteides present in plant and animal cells. Their micelleous tertiary structure allows iron accumulation in the form of hydratated oxides and phosphates. Thus, ferritin is a large spherical macromolecular protein with iron compounds in the cavity created by a peptide...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics