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Showing 1–5 of 5 results
Advanced filters: Author: Hamed Almohammadi Clear advanced filters

  • Tactoids are liquid crystal droplets with nearly vanishing interfacial tension. Almohammadi et al. show using a microfluidic focusing device how to manipulate them gently enough to facilitate the study of amyloid liquid crystal phase transitions subject to non-equilibirum forcing and shape changes.

    • Hamed Almohammadi
    • Massimo Bagnani
    • Raffaele Mezzenga
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9

  • Controlling the shape and self-assembly of anisotropic colloidal systems is essential for developing heterogeneous liquid crystalline materials with adjustable properties and functions. This study utilizes stimuli-responsive, photothermal manipulation to achieve reversible, sub-micron control of individual colloidal condensates, known as tactoids, allowing for processes such as cutting, healing, and information storage.

    • Dongdong Lin
    • Hamed Almohammadi
    • Raffaele Mezzenga
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-12

  • Tactoids, consisting of micro-confined liquid crystalline colloids with self-selected shape, bear both fundamental and technological significance. The authors show that the shape relaxation of tactoids follows an exponential decay and develop a model to predict this out-of-the-equilibrium process.

    • Hamed Almohammadi
    • Sayyed Ahmad Khadem
    • Raffaele Mezzenga
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • In heterogeneous colloidal systems, composition, shape, structure and physical properties result from the trade-off between thermodynamic and kinetic effects during nucleation and growth. Here, the authors demonstrate that kinetic and thermodynamic effects can be disentangled by careful selection of a colloidal systems and controlling phase separation in microfluidic devices

    • Hamed Almohammadi
    • Sandra Martinek
    • Raffaele Mezzenga
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9