264 citations · 596 across the 7 of their papers we have counts for
7 papers
Molecular mechanisms of self-mated hydrogel friction
Jan Mees, Rok Simič, Thomas C. O'Connor +2
Self-mated hydrogel contacts show extremely small friction coefficients at low loads but a distinct velocity dependence. Here we combine mesoscopic simulations and experiments to t…
Microrobots from Toposelective Nanoparticle Attachment
Maximilian R. Bailey, Fabio Grillo, Nicholas D. Spencer +1
Microrobots hold promise for applications ranging from targeted delivery to enhanced mixing at the microscale. However, current fabrication techniques suffer from limited throughpu…
Disentangling the roles of roughness, friction and adhesion in discontinuous shear thickening by means of thermo-responsive particles
Chiao-Peng Hsu, Joydeb Mandal, Shivaprakash N. Ramakrishna +2
Dense suspensions of colloidal or granular particles can display pronounced non-Newtonian behaviour, such as discontinuous shear thickening (DST) and shear jamming (SJ). The essent…
Tuning Interparticle Hydrogen Bonding in Shear-Jamming Suspensions: Kinetic Effects and Consequences for Tribology and Rheology
Nicole M. James, Chiao-Peng Hsu, Nicholas D. Spencer +2
The shear-jamming of dense suspensions can be strongly affected by molecular-scale interactions between particles, e.g. by chemically controlling their propensity for hydrogen bond…
Roughness-dependent tribology effects on discontinuous shear thickening
Chiao-Peng Hsu, Shivaprakash N. Ramakrishna, Michele Zanini +2
Surface roughness affects many properties of colloids, from depletion [1] and capillary interactions [2], to their dispersibility [3] and use as emulsion stabilizers [4]. It also i…
Friction of rubber with surfaces patterned with rigid spherical asperities
D. T. Nguyen, S. Ramakrishna, C. Fretigny +3
This paper reports on the frictional properties of smooth rubber substrates sliding against rigid surfaces covered with various densities of colloidal nano-particles (average diame…
Microscopic mechanism for the shear-thickening of non-Brownian suspensions
Nicolas Fernandez, Roman Mani, David Rinaldi +7
We propose a simple model, supported by contact-dynamics simulations as well as rheology and friction measurements, that links the transition from continuous to discontinuous shear…