In situ measurement of bulk modulus and yield response of glassy thin films via confined layer compression

Autor: Jason Kilpatrick, John B. Pethica, Johann P. de Silva, Heedong Yoon, Mithun Chowdhury, Warren C. Oliver, Gregory B. McKenna, Graham L. W. Cross, Owen Brazil

Publikováno v: Journal of Materials Research. 35:644-653

The measurement of thin film mechanical properties free from substrate influence remains one of the outstanding challenges in nanomechanics. Here, a technique based on indentation of a supported film with a flat punch whose diameter is many times the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bd4d67a7716449b908ddccd9d080865
https://doi.org/10.1557/jmr.2020.42

Characteristics, interactions and coating adherence of heterogeneous polymer/drug coatings for biomedical devices

Autor: Michael A. Morris, Paul Delaney, Graham L. W. Cross, Johann P. de Silva, Colm McManamon

Publikováno v: Materials Science and Engineering: C. 59:102-108

With this rise in surgical procedures it is important to focus on the mobility and safety of the patient and reduce the infections that are associated with hip replacements. We examine the mechanical properties of gentamicin sulphate as a model antim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e6f26b52c74eab1e80677c7662f230e
https://doi.org/10.1016/j.msec.2015.09.103

Effect of Cross-Linking and Hydration on Microscale Flat Punch Indentation of Collagen-Hyaluronic Acid Films in the Viscoelastic Limit

Autor: Graham L. W. Cross, Fergal J. O'Brien, Andrew D. S. Cameron, Ronan Daly, Colm McManamon, Johann P. de Silva

Publikováno v: SSRN Electronic Journal.

The properties of the extracellular matrix (ECM) have profound impact upon cell behaviour. As an abundant protein in mammals, collagen is a desirable base material to engineer an ECM tissue scaffold, but its structural weakness generally requires mol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::728c73dab53f7492ee96d01950f00c49
https://doi.org/10.2139/ssrn.3335367

Temperature-dependent structure and dynamics of highly-branched poly( N -isopropylacrylamide) in aqueous solution

Autor: Johann P. de Silva, Steven R. Carter, Stephen Rimmer, Bela Farago, Mark Geoghegan, Stephen M. King, Ateyyah M. Al-Baradi, Marco Maccarini, Laurence Noirez

Publikováno v: Soft Matter
Soft Matter, Royal Society of Chemistry, 2018, 14 (8), pp.1482-1491. ⟨10.1039/C7SM02330H⟩
Soft Matter, 2018, 14 (8), pp.1482-1491. ⟨10.1039/C7SM02330H⟩

International audience; Small-angle neutron scattering (SANS) and neutron spin-echo (NSE) have been used to investigate the temperature-dependent solution behaviour of highly-branched poly(N-isopropylacrylamide) (HB-PNIPAM). SANS experiments have sho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cde1d1cfd6f9b6754539b4e06e56344
https://hal.archives-ouvertes.fr/hal-01876405

Mechanical properties of self-assembled chitin nanofiber networks

Autor: Kamil Makhnejia, Pegah Hassanzadeh, Jungho Jin, Marco Rolandi, Wei Sun, Graham L. W. Cross, Johann P. de Silva

Publikováno v: J. Mater. Chem. B. 2:2461-2466

Chitin nanofibers are structural components of the insect cuticle, the exoskeleton of crabs, and mollusk shells. Chitin nanofibers have found broad use in biomedical applications. Here, we study structure-properties-processing relationships of 3 nm c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a041d5a948ae0606a56ceab09e254436
https://doi.org/10.1039/c3tb21550d