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Biomimetic channels based on carbon nanotubes (CNTs) with fast and selective transport have attractive applications in many fields. In this work, a remarkable and modulated enhancement in the ion transport rate through CNTs is facilitated by means of lipid decoration, by a factor of up to 20 times. A type of CNT membrane is firstly prepared, composed of well aligned multi-wall carbon nanotubes with...
Biomembrane transformations are closely related to many biological processes including endo/exocytosis and the cellular response to the local physical environment. In this work, we investigated the transformation between lipid membranes and lipid vesicles/tubes modulated by the solid substrate of graphene oxide (GO) aggregates under laser irradiation. We firstly fabricate a novel type of lipid@GO...
Three-dimensional functionalized multilayer graphenes (3D FMG) with systematically controllable interconnected pores and surface functional groups are prepared by using combined hydrochloric acid-assisted ultrasonic exfoliation and thermal reduction approach. Electrochemical analyses show that the optimized 3D FMG owns an amazing high specific capacitance of 508Fg−1 at 5mVs−1 in aqueous electrolyte...
Development of biocompatible surface coating is critical to engineer various functional nanomaterials for biomedical applications. Here, we present a new surface chemistry of graphene by covalently conjugating graphene oxide (GO) with dextran (DEX), a biocompatible polymer widely used for surface coating of biomaterials. Compared with GO, the graphene–dextran (GO–DEX) conjugate shows reduced sheet...
Graphane has a large band gap around 3.5eV. In the situation of a vacant hydrogen atom, defect states appear in the energy gap, according to density functional calculation, and a local magnetic moment of 1 Bohr magneton is generated. Furthermore, if the vacancy is occupied by an atom from the transition-metals, not only do impurity levels make their presence in and out of the gap region but larger...
Chemically functionalized multi-walled carbon nanotube (MWCNT)/bisphenol-A glycidol ether epoxy resin/2-ethyl-4-methylimidazole composites were prepared. MWCNTs were first treated by a 3:1 (v/v) mixture of concentrated H 2 SO 4 /HNO 3 , and then triethylenetetramine (TETA) grafting was carried out. X-ray photoelectron spectroscopy analysis proved the effectiveness of H ...
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