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Biomineral-inspired growth of metal–organic frameworks in gelatin hydrogel matrices

Biomineral-inspired growth of metal–organic frameworks in gelatin hydrogel matrices
Biomineral-inspired growth of metal–organic frameworks in gelatin hydrogel matrices
In this work we employ a biomineral-inspired growth approach to the prototypical metal–organic frameworks (MOFs) ZIF-8 and HKUST-1 using cheap abundant non-toxic gelatin hydrogels as both a matrix and macromolecular additive for crystal growth. Both MOFs are readily prepared within the hydrogel, and while ZIF-8@gelatin composites are readily dispersed in water to form colloidal solutions stable for several months, the matrix has a significantly more pronounced effect on the crystal growth and morphology of HKUST-1 directly mirroring natural matrix-mediated biomineralisation processes. Addition of small amounts of gelatin (<1 wt%) to solvothermal syntheses of the frameworks indicates that the biomacromolecule can influence particle size, and in the case of HKUST-1 leads to mesostructured aggregates of particles that can be tuned across multiple length scales.
3678-3684
Garai, Ashesh
1929c8d5-e341-4397-bb2a-c4af89321e9d
Shepherd, William
e9a5a363-fe4f-4f9d-a9f3-b0c221d6592a
Huo, Jia
962a200d-5811-424f-b7af-9f98e9c9ae47
Bradshaw, Darren
7677b11e-1961-447e-b9ba-4847a74bd4dd
Garai, Ashesh
1929c8d5-e341-4397-bb2a-c4af89321e9d
Shepherd, William
e9a5a363-fe4f-4f9d-a9f3-b0c221d6592a
Huo, Jia
962a200d-5811-424f-b7af-9f98e9c9ae47
Bradshaw, Darren
7677b11e-1961-447e-b9ba-4847a74bd4dd

Garai, Ashesh, Shepherd, William, Huo, Jia and Bradshaw, Darren (2013) Biomineral-inspired growth of metal–organic frameworks in gelatin hydrogel matrices. Journal of Materials Chemistry, 1 (30), 3678-3684. (doi:10.1039/c3tb20814a).

Record type: Article

Abstract

In this work we employ a biomineral-inspired growth approach to the prototypical metal–organic frameworks (MOFs) ZIF-8 and HKUST-1 using cheap abundant non-toxic gelatin hydrogels as both a matrix and macromolecular additive for crystal growth. Both MOFs are readily prepared within the hydrogel, and while ZIF-8@gelatin composites are readily dispersed in water to form colloidal solutions stable for several months, the matrix has a significantly more pronounced effect on the crystal growth and morphology of HKUST-1 directly mirroring natural matrix-mediated biomineralisation processes. Addition of small amounts of gelatin (<1 wt%) to solvothermal syntheses of the frameworks indicates that the biomacromolecule can influence particle size, and in the case of HKUST-1 leads to mesostructured aggregates of particles that can be tuned across multiple length scales.

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More information

Published date: 12 June 2013
Organisations: Organic Chemistry: Synthesis, Catalysis and Flow, Chemistry, Faculty of Natural and Environmental Sciences

Identifiers

Local EPrints ID: 363393
URI: http://eprints.soton.ac.uk/id/eprint/363393
PURE UUID: f7918b11-7447-4dcb-b591-317487487601
ORCID for Darren Bradshaw: ORCID iD orcid.org/0000-0001-5258-6224

Catalogue record

Date deposited: 25 Mar 2014 11:21
Last modified: 29 Aug 2019 00:37

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