3D-Printing Multi-Component Multi-Domain Supramolecular Gels with Differential Conductivity

Tajmon Tony Vadukoote; Alyssa-Jennifer Avestro; David K. Smith

doi:10.1002/anie.202409757

3D-Printing Multi-Component Multi-Domain Supramolecular Gels with Differential Conductivity

Tajmon Tony Vadukoote, Alyssa-Jennifer Avestro, David K. Smith

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We report the use of wet-spinning to 3D-print gels from low-molecular-weight gelators (LMWGs) based on the 1,3:2,4-dibenzylidenesorbitol (DBS) scaffold. Gel stripes assembled from DBS-CONHNH2 and DBS-COOH are printed, and their conductivities assessed. Printed gels based on DBS-CONHNH2 can be loaded with Au(III), which is reduced in situ to form embedded gold nanoparticles (AuNPs). The conductivity of these gels increases because of electron transport mediated by the AuNPs, whereas the conductivity of DBS-COOH, which does not promote AuNP formation, remains lower. We then fabricate multi-component gel patterns comprised of spatially well-defined domains of printed DBS-CONHNH2/AuNP (higher conductivity) and DBS-COOH (lower conductivity) resulting in soft multi-domain materials with differential conductivity. Such materials have future prospects in applications such as soft nanoelectronics or tissue engineering.

Original language	English
Article number	e202409757
Number of pages	8
Journal	Angewandte Chemie International Edition
Early online date	13 Aug 2024
DOIs	https://doi.org/10.1002/anie.202409757
Publication status	Published - 13 Aug 2024

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Angew Chem Int Ed - 2024 - Vadukoote - 3D‐Printing Multi‐Component Multi‐Domain Supramolecular Gels with Differential
© 2024 The Authors
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Cite this

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abstract = "We report the use of wet-spinning to 3D-print gels from low-molecular-weight gelators (LMWGs) based on the 1,3:2,4-dibenzylidenesorbitol (DBS) scaffold. Gel stripes assembled from DBS-CONHNH2 and DBS-COOH are printed, and their conductivities assessed. Printed gels based on DBS-CONHNH2 can be loaded with Au(III), which is reduced in situ to form embedded gold nanoparticles (AuNPs). The conductivity of these gels increases because of electron transport mediated by the AuNPs, whereas the conductivity of DBS-COOH, which does not promote AuNP formation, remains lower. We then fabricate multi-component gel patterns comprised of spatially well-defined domains of printed DBS-CONHNH2/AuNP (higher conductivity) and DBS-COOH (lower conductivity) resulting in soft multi-domain materials with differential conductivity. Such materials have future prospects in applications such as soft nanoelectronics or tissue engineering.",

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