Unambiguous detection of the adhesive failure of metal films in the microscratch test by waveform analysis of the friction signal

Baba, Shigeru; Midorikawa, Tsukasa; Nakano, Takeo

doi:10.1016/s0169-4332(98)00824-1

Cited by 22 publications

(13 citation statements)

References 6 publications

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“…We utilize the micro-scratch test [29] for the evaluation of macroscopic adhesive properties of ultrathin films, such as nanosheets. The micro-scratch tester employs a diamond stylus, which oscillates parallel to the surface of the polysaccharide nanosheet on the SiO 2 substrate.…”

Section: Adhesive and Mechanical Properties Of Polysaccharide Nanosheetsmentioning

confidence: 99%

Adhesive, Flexible, and Robust Polysaccharide Nanosheets Integrated for Tissue‐Defect Repair

Fujie

Matsutani

Kinoshita

et al. 2009

Adv Funct Materials

167

171

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Recent developments in nanotechnology have led to a method for producing free‐standing polymer nanosheets as a macromolecular organization. Compared with bulk films, the large aspect ratio of such nanosheets leads to unique physical properties, such as transparency, noncovalent adhesion, and high flexibility. Here, a biomedical application of polymer nanosheets consisting of biocompatible and biodegradable polysaccharides is reported. Micro‐scratch and bulge tests indicate that the nanosheets with a thickness of tens of nanometers have sufficient physical adhesiveness and mechanical strength for clinical use. A nanosheet of 75 nm thickness, a critical load of 9.1 × 104 N m−1, and an elastic modulus of 9.6 GPa is used for the minimally invasive repair of a visceral pleural defect in beagle dogs without any pleural adhesion caused by wound repair. For the first time, clinical benefits of sheet‐type nano‐biomaterials based on molecular organization are demonstrated, suggesting that novel therapeutic tools for overlapping tissue wounds will be possible without the need for conventional surgical interventions.

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Section: Adhesive and Mechanical Properties Of Polysaccharide Nanosheetsmentioning

confidence: 99%

Adhesive, Flexible, and Robust Polysaccharide Nanosheets Integrated for Tissue‐Defect Repair

Fujie

Matsutani

Kinoshita

et al. 2009

Adv Funct Materials

167

171

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“…The microscratch tester [7] (CSR-2000; Rhesca Co., Tokyo, Japan) was used to evaluate the physical adhesive properties of the PLLA nanosheet. We prepared PLLA nanosheets of various thicknesses ranging from 20 to 400 nm [6].…”

Section: Animals and Materialsmentioning

confidence: 99%

Novel technique of overlaying a poly-l-lactic acid nanosheet for adhesion prophylaxis and fixation of intraperitoneal onlay polypropylene mesh in a rabbit model

et al. 2011

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“…[11] When the diamond tip horizontally and gradually scratched the PLLA nanosheet re-adsorbed on the SiO 2 substrate as described in the Experimental, the PLLA nanosheet was detached from the substrate. The critical load just before detachment of the PLLA nanosheet (thickness: 23 AE 5 nm) was calculated to be (1.7 AE 0.3) Â 10 5 N m À1 (Fig.…”

mentioning

confidence: 99%

“…[11] However, when the thickness was over 100 nm, the critical load was significantly decreased ( . Furthermore, these values were the same as for the nanosheet fabricated directly on the SiO 2 substrate (data not shown), which indicates that the nanosheet with a large contact area could conform to the SiO 2 surface because of its exquisite flexibility and low roughness.…”

mentioning

confidence: 99%

Free‐Standing Biodegradable Poly(lactic acid) Nanosheet for Sealing Operations in Surgery

et al. 2009

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A free-standing biodegradable nanosheet composed of poly(L-lactic acid) (PLLA) was shown to have excellent sealing efficacy for a gastric incision as a novel wound dressing material that did not require adhesive agents, and the PLLA nanosheet-induced wound repair showed neither scars nor tissue adhesion. This material may, therefore, be an ideal alternative to conventional tissue repairing procedures using suture/ligation in surgery.

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Unambiguous detection of the adhesive failure of metal films in the microscratch test by waveform analysis of the friction signal

Cited by 22 publications

References 6 publications

Adhesive, Flexible, and Robust Polysaccharide Nanosheets Integrated for Tissue‐Defect Repair

Adhesive, Flexible, and Robust Polysaccharide Nanosheets Integrated for Tissue‐Defect Repair

Novel technique of overlaying a poly-l-lactic acid nanosheet for adhesion prophylaxis and fixation of intraperitoneal onlay polypropylene mesh in a rabbit model

Free‐Standing Biodegradable Poly(lactic acid) Nanosheet for Sealing Operations in Surgery

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