AFM nanoindentation to determine Young’s modulus for different EPDM elastomers

Ferencz, Robert M.; Sánchez, J.M.; Blümich, Bernhard; Herrmann, W.

doi:10.1016/j.polymertesting.2012.01.003

Cited by 64 publications

(49 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The load-penetration depth curve can be used together with a contact mechanics model to calculate the stiffness of the sample. This technique has been successfully applied to both polymers and rubbers [26][27][28]. The viscoelastic properties of the samples can be obtained by performing measurements at various temperatures and/or indentation ratios [29,30].…”

Section: Nanoscale Mechanical Characterizationmentioning

confidence: 99%

Existence of a tribo-modified surface layer of BR/S-SBR elastomers reinforced with silica or carbon black

Mokhtari

Schipper

2016

Tribology International

View full text Add to dashboard Cite

Section: Nanoscale Mechanical Characterizationmentioning

confidence: 99%

Existence of a tribo-modified surface layer of BR/S-SBR elastomers reinforced with silica or carbon black

Mokhtari

Schipper

2016

Tribology International

View full text Add to dashboard Cite

“…In this model, it is assumed that the indenter tip is not deformable and thus it does not change during the measurement and that the Young's modulus for the indenter tip is much larger than the Young's modulus for the sample. The Hertz model for a sharp cone of tip angle 2c yields to the following equa-tion for the load force, F as a function of the indentation depth, ı (Bulychev, Alekhin, Shorshorov, Ternovskii, & Shnyrev, 1975;Ferencz, Sanchez, Blumich, & Herrmann, 2012;Lin, Dimitriadis, & Horkay, 2007),…”

Section: Characterizationmentioning

confidence: 99%

Surface stiffening and enhanced photoluminescence of ion implanted cellulose – polyvinyl alcohol – silica composite

Shanthini

Sakthivel

Menon

et al. 2016

Carbohydrate Polymers

View full text Add to dashboard Cite

Novel Cellulose (Cel) reinforced polyvinyl alcohol (PVA)-Silica (Si) composite which has good stability and in vitro degradation was prepared by lyophilization technique and implanted using N 3+ ions of energy 24 keV in the fluences of 1 × 10 15 , 5 × 10 15 and 1 × 10 16 ions/cm 2 . SEM analysis revealed the formation of microstructures, and improved the surface roughness on ion implantation. In addition to these structural changes, the implantation significantly modified the luminescent, thermal and mechanical properties of the samples. The elastic modulus of the implanted samples has increased by about 50 times compared to the pristine which confirms that the stiffness of the sample surface has increased remarkably on ion implantation. The photoluminescence of the native cellulose has improved greatly due to defect site, dangling bonds and hydrogen passivation. Electric conductivity of the ion implanted samples was improved by about 25%. Hence, low energy ion implantation tunes the mechanical property, surface roughness and further induces the formation of nano structures. MG63 cells seeded onto the scaffolds reveals that with the increase in implantation fluence, the cell attachment, viability and proliferation have improved greatly compared to pristine. The enhancement of cell growth of about 59% was observed in the implanted samples compared to pristine. These properties will enable the scaffolds to be ideal for bone tissue engineering and imaging applications.

show abstract

“…Another way to probe changes in the mechano-elastic properties that are modified by the addition of RTILs is offered by AFM. Both the Young's moduli and the rupture forces can be determined for single supported phospholipid bilayers and vesicles (Monocles et al 2010; Garcia-Manyes and Sanz 2010; Roa et al 2011;Ferenc et al 2012;Stetter et al 2016;Ding et al 2017). To the best of our knowledge, there are no AFM studies of this kind.…”

Section: Introductionmentioning

confidence: 99%

Room-temperature ionic liquids meet bio-membranes: the state-of-the-art

Benedetto

2017

Biophys Rev

View full text Add to dashboard Cite

Room-temperature ionic liquids (RTIL) are a new class of organic salts whose melting temperature falls below the conventional limit of 100°C. Their low vapor pressure, moreover, has made these ionic compounds the solvents of choice of the so-called green chemistry. For these and other peculiar characteristics, they are increasingly used in industrial applications. However, studies of their interaction with living organisms have highlighted mild to severe health hazards. Since their cytotoxicity shows a positive correlation with their lipophilicity, several chemical-physical studies of their interactions with biomembranes have been carried out in the last few years, aiming to identify the molecular mechanisms behind their toxicity. Cation chain length and anion nature of RTILs have seemed to affect lipophilicity and, in turn, their toxicity. However, the emerging picture raises new questions, points to the need to assess toxicity on a case-by-case basis, but also suggests a potential positive role of RTILs in pharmacology, bio-medicine and bio-nanotechnology. Here, we review this new subject of research, and comment on the future and the potential importance of this emerging field of study.

show abstract

AFM nanoindentation to determine Young’s modulus for different EPDM elastomers

Cited by 64 publications

References 21 publications

Existence of a tribo-modified surface layer of BR/S-SBR elastomers reinforced with silica or carbon black

Existence of a tribo-modified surface layer of BR/S-SBR elastomers reinforced with silica or carbon black

Surface stiffening and enhanced photoluminescence of ion implanted cellulose – polyvinyl alcohol – silica composite

Room-temperature ionic liquids meet bio-membranes: the state-of-the-art

Contact Info

Product

Resources

About