Carbon nano horn and bovine serum albumin hierarchical composite: towards bio-friendly superhydrophobic protein film surfaces

Jadhav, Anil D.; Ogale, Satishchandra; Prasad, B. L. V.

doi:10.1039/b806777e

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…A strong carbonyl stretching signal-typical for the chemically modified carbonaceous materials appears at 1649.25 cm -1 [43]. The C-H stretching vibration of the carbon nanohorn starts at 2841.3 and ends at 2669.1 cm -1 [44]. Similar functionalities are identified for Graphene-g-PPy (B) and MWCNT-g-PPy (C).…”

Section: Materials Characterizationmentioning

confidence: 52%

Grafting of the carbon allotropes and polypyrrole via a Kevlar-type organic linker: the correlation of carbon structure/morphology with electrochemistry of the composite electrode

Radtke

Ignaszak

2016

Mater Renew Sustain Energy

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This study validates three carbon allotropes, such as carbon nanotubes, graphene and carbon nanohorns that are covalently bound via a Kevlar-type linker (amidebound aryl) with polypyrrole. In the proposed synthesis, the linker moiety is formed onto the carbon surface via combined electrochemical and chemical reactions and the polymer is attached during the final phase. Overall, the highest specific capacitance (*350 F/g) and thermal and electrochemical stability were observed for the MWCNTbased system, followed by Nanohorn-g-PPy (-g-stands for grafted) and the least stable with the smallest capacitance for the Graphene-based composite. The MWCNT-grafted material demonstrated a non-continuous and very thin polypyrrole coating onto the carbon surface. These structures are rigid, stable and reveal good accessibility of ions towards both the carbon and polymer. This system showed also the highest diffusion coefficient for the ion doping owing to the polymer effective diffusion length. The fast degradation of Graphene-g-PPy is associated with the carbon morphology and its high activity towards electrochemical oxygen reduction due to the presence of catalytic sp 2 carbon atoms at the edges of the graphene. The presented work highlights an effect of carbon morphology in designing chemically grafted components for ultra-capacitor electrodes.

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Section: Materials Characterizationmentioning

confidence: 52%

Grafting of the carbon allotropes and polypyrrole via a Kevlar-type organic linker: the correlation of carbon structure/morphology with electrochemistry of the composite electrode

Radtke

Ignaszak

2016

Mater Renew Sustain Energy

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“…This is important because today it is obvious that roughness not only in the micro but also in the nanoscale plays a crucial role in wetting processes. 25 Here, it is important to point out that the results of our study provide inputs to the current debate about the application of macroscopic models to the description of phenomena taking place at the nanoscale. 26−28 We expect that our MD data will be important in the branches using PTFE to increase the hydrophobicity of a surface.…”

Section: ■ Introductionmentioning

confidence: 90%

Nanoscale Water Contact Angle on Polytetrafluoroethylene Surfaces Characterized by Molecular Dynamics–Atomic Force Microscopy Imaging

Włoch¹,

Terzyk²,

Wiśniewski³

et al. 2018

Langmuir

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The aim of this study is to link polytetrafluoroethylene (PTFE) surface characteristics with its wetting properties in the nanoscale. To do this using molecular dynamics (MD) simulation, three series of rough PTFE surfaces were generated by annealing and compressing and next characterized by the application of the MD version of the atomic force microscopy (AFM) method. The values of specific surface areas were additionally calculated. The TIP4P/2005 water model was used to study the wetting properties of obtained PTFE samples. The simulated water contact angle (WCA) value for the most flat (but slightly rough) sample having PTFE density is equal to 106.94°, and it is close to the value suggested for a perfect PTFE surface on the basis of experimental results. Also, the changes in the WCA with PTFE compression are in the same range as experimentally reported. The obtained MD simulation results make it possible to link, for the first time, the WCA values with the surface MD-AFM root-mean-square roughness and with the PTFE density. Finally, we show that for PTFE wetting in the nanoscale, the line tension is negligible and the Bormashenko's equation reduces to the Cassie-Baxter (CB) model. In fact, our simulation results are close to the CB mechanism.

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“…The surfaces containing SWCNH are rarely met in literature. SWCNH-bovine serum albumin coatings dispersed on glass [67] were used to create bio-safe surfaces (with WCA close 140 • ). Pool-boiling method was applied to deposit ultrathin SWCNH layers on metal surfaces [68].…”

Section: Introductionmentioning

confidence: 99%

Are nanohedgehogs thirsty? Toward new superhydrophobic and anti-icing carbon nanohorn-polymer hybrid surfaces

Korczeniewski

Bryk

Koter

et al. 2022

Chemical Engineering Journal

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Carbon nano horn and bovine serum albumin hierarchical composite: towards bio-friendly superhydrophobic protein film surfaces

Cited by 5 publications

References 31 publications

Grafting of the carbon allotropes and polypyrrole via a Kevlar-type organic linker: the correlation of carbon structure/morphology with electrochemistry of the composite electrode

Grafting of the carbon allotropes and polypyrrole via a Kevlar-type organic linker: the correlation of carbon structure/morphology with electrochemistry of the composite electrode

Nanoscale Water Contact Angle on Polytetrafluoroethylene Surfaces Characterized by Molecular Dynamics–Atomic Force Microscopy Imaging

Are nanohedgehogs thirsty? Toward new superhydrophobic and anti-icing carbon nanohorn-polymer hybrid surfaces

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