Plasma functionalization of carbon nanowalls and its effect on attachment of fibroblast-like cells

Aging phenomena and wettability control of plasma deposited carbon nanowall layers

“…The relative concentrations of elements for the fresh CNW sample were: 94% (C), 0.9% (N), 5.2% (O), while for the aged CNW the concentrations were 80.7% (C), 3.6% (N), and 15.7% (O), which reveals that an accumulation of oxygen and nitrogen atoms occurred in time. This aspect is obvious when comparing these values to the ones previously obtained for aged samples . For example, the O/C ratio of the fresh samples is 5.5%, as compared to 19.5% in the aged CNW.…”

“…The relative atomic concentration for each element was calculated by the integration of peak areas (after Shirley background subtraction) and considering the Relative Sensitivity Factors for the respective element. Details of the procedure for XPS calculation and deconvolution by CASA software were extensively described before . Additional data concerning the vibrational properties of CNW was obtained by Fourier transform infrared spectroscopy (Bruker FTIR spectrophotometer, Vertex 70 model).…”

Review on the Antimicrobial Properties of Carbon Nanostructures

“…In general, CNSs are recognized for their excellent electrical conductivity, supreme mechanical strength, high thermal conductivity, extraordinarily high surface area, excellent photoluminescent properties [ 5 ], high transparency and structural stability [ 6 , 7 ]. These unique properties make carbon nanoarchitectures promising for applications stretching from thin film transistors [ 8 ], transparent conducting electrodes [ 9 ], photovoltaics [ 10 ], supercapacitors [ 11 ], to biosensors [ 12 ], drug delivery [ 13 ], tissue engineering [ 14 ] and photothermal therapy [ 15 ].…”

Wettability of vertically-oriented graphenes with different intersheet distances

“…23 Stancu et al found that the CA of VGs transitioned from 122 to 4-11 with NH 3 and N 2 plasma functionalization, which was ascribed to the increasing of N and O concentrations for 16.3-19.1% and 13.9-17.3%, respectively. 24 Zhou et al turned the CA of VGs between 0 and 140.1 by the adding and elimination of carbonyls and epoxide groups with O 2 and H 2 plasma modications. 25 On the other hand, it was reported that CA of VGs were modied from 133 to 53.1 with the effect of carboxyl and hydroxyl groups while recovered to 133.7 due to the functionalization of alkane chains.…”