Super-Macroporous Lightweight Materials Templated from Bicontinuous Intra-Phase Jammed Emulsion Gels Based on Nanochitin

Yi Lu; Milad Kamkar; Shasha Guo; Xun Niu; Zhangmin Wan; Junhua Xu; Xiaoya Su; Yimin Fan; Long Bai; Orlando J. Rojas

doi:10.1002/smll.202300686

Super-Macroporous Lightweight Materials Templated from Bicontinuous Intra-Phase Jammed Emulsion Gels Based on Nanochitin

Yi Lu, Milad Kamkar, Shasha Guo, Xun Niu, Zhangmin Wan, Junhua Xu, Xiaoya Su, Yimin Fan^*, Long Bai^*, Orlando J. Rojas^*

^*Corresponding author for this work

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

11 Citations (Scopus)

38 Downloads (Pure)

Abstract

Non-equilibrium multiphase systems are formed by mixing two immiscible nanoparticle dispersions, leading to bicontinuous emulsions that template cryogels with interconnected, tortuous channels. Herein, a renewable, rod-like biocolloid (chitin nanocrystals, ChNC) is used to kinetically arrest bicontinuous morphologies. Specifically, it is found that ChNC stabilizes intra-phase jammed bicontinuous systems at an ultra-low particle concentration (as low as 0.6 wt.%), leading to tailorable morphologies. The synergistic effects of ChNC high aspect ratio, intrinsic stiffness, and interparticle interactions produce hydrogelation and, upon drying, lead to open channels bearing dual characteristic sizes, suitably integrated into robust bicontinuous ultra-lightweight solids. Overall, it demonstrates the successful formation of ChNC-jammed bicontinuous emulsions and a facile emulsion templating route to synthesize chitin cryogels that form unique super-macroporous networks.

Original language	English
Article number	2300686
Number of pages	9
Journal	Small
Volume	19
Issue number	39
Early online date	5 May 2023
DOIs	https://doi.org/10.1002/smll.202300686
Publication status	Published - 27 Sept 2023
MoE publication type	A1 Journal article-refereed

Keywords

bicontinuous emulsion
colloids
jamming
macroporous materials
nanochitin

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/smll.202300686Licence: CC BY

CHEM_Lu_et_al_Super-Macroporous_Lightweight_2023_SmallFinal published version, 2.34 MBLicence: CC BY

Cite this

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title = "Super-Macroporous Lightweight Materials Templated from Bicontinuous Intra-Phase Jammed Emulsion Gels Based on Nanochitin",

abstract = "Non-equilibrium multiphase systems are formed by mixing two immiscible nanoparticle dispersions, leading to bicontinuous emulsions that template cryogels with interconnected, tortuous channels. Herein, a renewable, rod-like biocolloid (chitin nanocrystals, ChNC) is used to kinetically arrest bicontinuous morphologies. Specifically, it is found that ChNC stabilizes intra-phase jammed bicontinuous systems at an ultra-low particle concentration (as low as 0.6 wt.%), leading to tailorable morphologies. The synergistic effects of ChNC high aspect ratio, intrinsic stiffness, and interparticle interactions produce hydrogelation and, upon drying, lead to open channels bearing dual characteristic sizes, suitably integrated into robust bicontinuous ultra-lightweight solids. Overall, it demonstrates the successful formation of ChNC-jammed bicontinuous emulsions and a facile emulsion templating route to synthesize chitin cryogels that form unique super-macroporous networks.",

keywords = "bicontinuous emulsion, colloids, jamming, macroporous materials, nanochitin",

author = "Yi Lu and Milad Kamkar and Shasha Guo and Xun Niu and Zhangmin Wan and Junhua Xu and Xiaoya Su and Yimin Fan and Long Bai and Rojas, {Orlando J.}",

note = "| openaire: EC/H2020/788489/EU//BioELCell Funding Information: The authors would like to acknowledge financial support from the Canada Excellence Research Chair Program (CERC‐2018‐00006), the Canada Foundation for Innovation (Project number 38623), and the European Commission Horizon 2020 ERC Advanced program (grant agreement No. 788489 “BioElCell”). The authors would also like to thank the UBC Bioimaging facility (RRID: SCR_021304) for providing confocal microscopy, SEM, and TEM equipment. Y.L. would like to thank Eun Kyoung Lee, Naoji Yubuki, and Derrick Horne at the UBC Bioimaging facility for technical support. The authors are thankful to Ms. Ayako Takagi for the help with illustrations. Publisher Copyright: {\textcopyright} 2023 The Authors. Small published by Wiley-VCH GmbH.",

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month = sep,

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doi = "10.1002/smll.202300686",

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AU - Lu, Yi

AU - Kamkar, Milad

AU - Guo, Shasha

AU - Niu, Xun

AU - Wan, Zhangmin

AU - Xu, Junhua

AU - Su, Xiaoya

AU - Fan, Yimin

AU - Bai, Long

AU - Rojas, Orlando J.

N1 - | openaire: EC/H2020/788489/EU//BioELCell Funding Information: The authors would like to acknowledge financial support from the Canada Excellence Research Chair Program (CERC‐2018‐00006), the Canada Foundation for Innovation (Project number 38623), and the European Commission Horizon 2020 ERC Advanced program (grant agreement No. 788489 “BioElCell”). The authors would also like to thank the UBC Bioimaging facility (RRID: SCR_021304) for providing confocal microscopy, SEM, and TEM equipment. Y.L. would like to thank Eun Kyoung Lee, Naoji Yubuki, and Derrick Horne at the UBC Bioimaging facility for technical support. The authors are thankful to Ms. Ayako Takagi for the help with illustrations. Publisher Copyright: © 2023 The Authors. Small published by Wiley-VCH GmbH.

PY - 2023/9/27

Y1 - 2023/9/27

N2 - Non-equilibrium multiphase systems are formed by mixing two immiscible nanoparticle dispersions, leading to bicontinuous emulsions that template cryogels with interconnected, tortuous channels. Herein, a renewable, rod-like biocolloid (chitin nanocrystals, ChNC) is used to kinetically arrest bicontinuous morphologies. Specifically, it is found that ChNC stabilizes intra-phase jammed bicontinuous systems at an ultra-low particle concentration (as low as 0.6 wt.%), leading to tailorable morphologies. The synergistic effects of ChNC high aspect ratio, intrinsic stiffness, and interparticle interactions produce hydrogelation and, upon drying, lead to open channels bearing dual characteristic sizes, suitably integrated into robust bicontinuous ultra-lightweight solids. Overall, it demonstrates the successful formation of ChNC-jammed bicontinuous emulsions and a facile emulsion templating route to synthesize chitin cryogels that form unique super-macroporous networks.

AB - Non-equilibrium multiphase systems are formed by mixing two immiscible nanoparticle dispersions, leading to bicontinuous emulsions that template cryogels with interconnected, tortuous channels. Herein, a renewable, rod-like biocolloid (chitin nanocrystals, ChNC) is used to kinetically arrest bicontinuous morphologies. Specifically, it is found that ChNC stabilizes intra-phase jammed bicontinuous systems at an ultra-low particle concentration (as low as 0.6 wt.%), leading to tailorable morphologies. The synergistic effects of ChNC high aspect ratio, intrinsic stiffness, and interparticle interactions produce hydrogelation and, upon drying, lead to open channels bearing dual characteristic sizes, suitably integrated into robust bicontinuous ultra-lightweight solids. Overall, it demonstrates the successful formation of ChNC-jammed bicontinuous emulsions and a facile emulsion templating route to synthesize chitin cryogels that form unique super-macroporous networks.

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KW - macroporous materials

KW - nanochitin

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M1 - 2300686

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Super-Macroporous Lightweight Materials Templated from Bicontinuous Intra-Phase Jammed Emulsion Gels Based on Nanochitin

Abstract

Keywords

UN SDGs

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BioELCell: Bioproducts Engineered from Lignocelluloses: from plants and upcycling to next generation materials

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Super-Macroporous Lightweight Materials Templated from Bicontinuous Intra-Phase Jammed Emulsion Gels Based on Nanochitin

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Projects

BioELCell: Bioproducts Engineered from Lignocelluloses: from plants and upcycling to next generation materials

Cite this