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Chemistry A European J - 2024 - Nicks - Controlling the Uptake and Release of Semiochemicals in Channel‐Type Metal‐Organic.pdf (2.54 MB)

Controlling the uptake and release of semiochemicals in channel-type metal-organic frameworks through pore expansion

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posted on 2024-06-10, 11:30 authored by Joshua Nicks, Greig C Shearer, Joseph Paul-Taylor, James Lai-MorriceJames Lai-Morrice, Chris Dadswell, Daniel Guest, William OH Hughes, John SpencerJohn Spencer, Tina Düren, Andrew David Burrows
Semiochemicals can be used to manipulate insect behaviour for sustainable pest management strategies, but their high volatility is a major issue for their practical implementation. Inclusion of these molecules within porous materials is a potential solution to this issue, as it can allow for a slower and more controlled release. In this work, we demonstrate that a series of Zr(IV) and Al(III) metal-organic frameworks (MOFs) with channel-type pores enable controlled release of three semiochemicals over 100 days by pore size design, with the uptake and rate of release highly dependent on the pore size. Insight from Grand Canonical Monte Carlo simulations indicates that this is due to weaker MOF-guest interactions per guest molecule as the pore size increases. These MOFs are all stable post-release and can be reloaded to show near-identical re-release profiles. These results provide valuable insight on the diffusion behaviour of volatile guests in MOFs, and for the further development of porous materials for sustainable agriculture applications.

Funding

The controlled release of semiochemicals from porous materials for pest control : LEVERHULME TRUST

History

Publication status

  • Published

File Version

  • Published version

Journal

Chemistry

ISSN

0947-6539

Publisher

Wiley

Article number

e202401407

Department affiliated with

  • Chemistry Publications

Institution

University of Sussex

Full text available

  • Yes

Peer reviewed?

  • Yes

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