When subjected to large amplitude oscillatory shear stress, aqueous Laponite suspensions show an abrupt solidification transition after a long delay time t(c). We measure the dependence of t(c) on stress amplitude, frequency, and on the age-dependent initial loss modulus. At first sight our observations appear quantitatively consistent with a simple soft-glassy rheology (SGR)-type model, in whi...

Correction for ‘LAPONITE® nanodisk-based platforms cancer diagnosis and therapy’ by Gaoming Li et al. , Mater. Adv. 2022, https://doi.org/10.1039/d2ma00637e.

The design and fabrication of oxygen barrier films is important for both fundamental and industrial applications. We prepared three different thin films composed of graphene oxide (GO) and laponite (LN), a typical low cost inorganic clay, with the GO/LN volume ratios of 1.9/0.1, 1.7/0.3 and 1.5/0.5 together with a double layer film of the GO and LN. We found that the films with GO/LN = 1.9/0.1 ...

Abstract Three-dimensional (3D) extrusion printing of cellular/acellular structures with biocompatible materials has been widely investigated in recent years. However, the requirement a suitable solidification rate printable ink constrains utilization extrusion-based 3D techniques. In this study, nanoclay yield-stress suspension-enabled system and demonstrated to overcome constraints during pri...

We study the Brownian motion of particles trapped by optical tweezers inside a colloidal glass (Laponite) during the sol-gel transition. We use two methods based on passive rheology to extract the effective temperature from the fluctuations of the Brownian particles. All of them give a temperature that, within experimental errors, is equal to the heat bath temperature. Several interesting featu...

There are two types of isotropic disordered nonergodic states in colloidal suspensions: colloidal glasses and gels. In a recent paper [H. Tanaka, J. Meunier, and D. Bonn, Phys. Rev. E 69, 031404 (2004)], we discussed the static aspect of the differences and the similarities between the two. In this paper, we focus on the dynamic aspect. The kinetics of the liquid-glass transition is called "agi...

Abstract We used mixture design to predict rheological parameters, namely the storage and loss modulus $$G'$$ G ′ $$G''$$ critical stress $$\sigma _{c}$$ σ c , of mixtures Laponite EP benton...