The thermodynamic origins of chiral twist in monolayer assemblies of rod-like colloids

Liu, Yawei; Wood, Jared A.; Giacometti, Andrea; Widmer‐Cooper, Asaph

doi:10.1039/d2nr05230j

Cited by 3 publications

(1 citation statement)

References 59 publications

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“…In this case the critical length of PL for cluster formation is 10. Within the clusters the PL molecules are parallelly aligned to each other and tilt around the radial axis away from the centre of the cluster, as it has been observed in mixtures of systems composed of a suspension of rod-like particles and small depletants 47 (see Fig. S3 and S5 in the ESI‡).…”

Section: Resultsmentioning

confidence: 63%

Understanding the balance between additives’ miscibility and plasticisation effect in polymer composites: a computational study

et al. 2023

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Section: Resultsmentioning

confidence: 63%

Understanding the balance between additives’ miscibility and plasticisation effect in polymer composites: a computational study

et al. 2023

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Two-Step Chirality Transfer to Twisted Assemblies: Synergistic Interplay of Chiral and Aggregation Interactions

Li,

Sun,

2024

ACS Nano

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Janus helices: From fully attractive to hard helices

Dal Compare,

Romano,

Wood

et al. 2023

The Journal of Chemical Physics

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The phase diagram of hard helices differs from its hard rods counterpart by the presence of chiral “screw” phases stemming from the characteristic helical shape, in addition to the conventional liquid crystal phases also found for rod-like particles. Using extensive Monte Carlo and Molecular Dynamics simulations, we study the effect of the addition of a short-range attractive tail representing solvent-induced interactions to a fraction of the sites forming the hard helices, ranging from a single-site attraction to fully attractive helices for a specific helical shape. Different temperature regimes exist for different fractions of the attractive sites, as assessed in terms of the relative Boyle temperatures, that are found to be rather insensitive to the specific shape of the helical particle. The temperature range probed by the present study is well above the corresponding Boyle temperatures, with the phase behaviour still mainly entropically dominated and with the existence and location of the various liquid crystal phases only marginally affected. The pressure in the equation of state is found to decrease upon increasing the fraction of attractive beads and/or on lowering the temperature at fixed volume fraction, as expected on physical grounds. All screw phases are found to be stable within the considered range of temperatures with the smectic phase becoming more stable on lowering the temperature. By contrast, the location of the transition lines do not display a simple dependence on the fraction of attractive beads in the considered range of temperatures.

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The thermodynamic origins of chiral twist in monolayer assemblies of rod-like colloids

Abstract: The propagation of chirality across scales is a common but poorly understood phenomenon in soft matter. Here, using computer simulations, we study twisted monolayer assemblies formed by both chiral and...

Cited by 3 publications

References 59 publications

Understanding the balance between additives’ miscibility and plasticisation effect in polymer composites: a computational study

Understanding the balance between additives’ miscibility and plasticisation effect in polymer composites: a computational study

Two-Step Chirality Transfer to Twisted Assemblies: Synergistic Interplay of Chiral and Aggregation Interactions

Janus helices: From fully attractive to hard helices

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