Highly stretchable ionically crosslinked acrylate elastomers inspired by polyelectrolyte complexes

Cai, Hongyi; Wang, Zhongtong; Utomo, Nyalaliska W.; Vidavsky, Yuval; Silberstein, Meredith N.

doi:10.1039/d2sm00755j

Cited by 5 publications

(1 citation statement)

References 97 publications

(126 reference statements)

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“…Next, we examined the capacity of charged surface functional patterns to control electrostatic adsorption, using 100 nm polystyrene spheres with embedded rhodamine red fluorophores and surface COOH groups (RR–COOH–PS). Because flexible soft materials often make use of dynamic electrostatic interactions in the bulk material, , we were interested in the capability of the surface functionalization layer to independently modulate electrostatic interactions, for instance, to enable binding of anionic adsorbates to anionic PAAm by patterning surface cationic regions (Figure ).…”

Section: Resultsmentioning

confidence: 99%

Inkjet Printing of Nanoscale Functional Patterns on 2D Crystalline Materials and Transfer to Soft Materials

Arango,

Pintro,

Singh

et al. 2024

ACS Appl. Mater. Interfaces

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Nanometer-scale control over surface functionality is important in applications ranging from nanoscale electronics to regenerative medicine. However, approaches that provide precise control over surface chemistry at the nanometer scale are often challenging to use with higher throughput and in more heterogeneous environments (e.g., complex solutions, porous interfaces) common for many applications. Here, we demonstrate a scalable inkjet-based method to generate 1 nm-wide functional patterns on 2D materials such as graphite, which can then be transferred to soft materials such as hydrogels. We examine fluid dynamics associated with the inkjet printing process for lowviscosity amphiphile inks designed to maximize ordering with limited residue and show that microscale droplet fluid dynamics influence nanoscale molecular ordering. Additionally, we show that scalable patterns generated in this way can be transferred to hydrogel materials and used to create surface chemical patterns that induce adsorption of charged particles, with effects strong enough to overcome electrostatic repulsion between a charged hydrogel and a like-charged nanoparticle.

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Section: Resultsmentioning

confidence: 99%