ORCID Profile
0000-0001-5240-8436
Current Organisations
The University of Hong Kong
,
RMIT University
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Publisher: American Chemical Society (ACS)
Date: 29-07-2022
Abstract: Solid-state sensing platforms are desirable for the development of reusable sensors to promote public health measures such as testing for drinking water contamination. A bioinspired metal-organic framework (MOF)-based material has been developed by imitating metal-protein interactions in biological systems to attain high sensitivity and selectivity to Pb
Publisher: American Chemical Society (ACS)
Date: 04-10-2021
Publisher: Wiley
Date: 12-07-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1MH00609F
Abstract: An emerging trend in the application of metal–organic frameworks is to engineer mobile devices to possess chemical detecting capabilities for environmental monitoring, point-of-care testing, artificial intelligence, food security and defence.
Publisher: Elsevier BV
Date: 04-2021
Publisher: Elsevier BV
Date: 03-2018
Publisher: Wiley
Date: 06-2023
Abstract: A zeolitic imidazolate framework (ZIF‐8) containing two enzymes that form a cascade biocatalyst has been integrated with 3D structures that are fabricated through a two‐photon polymerization using direct laser writing lithography. Glucose oxidase (GOx) and horseradish peroxidase (HRP) are encapsulated by the biomimetic self‐assembly process of ZIF‐8 to form the GOx/HRP/ZIF‐8 composite which grows in situ on the surface of microprinted carbon‐coated hexagonal substrates (cHS). The GOx/HRP/ZIF‐8/cHS film is applied to glucose detection through enzymatic oxidation of glucose to gluconic acid, forming H 2 O 2 , in the presence of GOx and the subsequent reduction of H 2 O 2 to water in the presence of HRP and Amplex Red. This reaction is monitored using fluorimetry as the oxidation of Amplex Red with H 2 O 2 catalyzed by HRP forms red‐emitting resorufin. The GOx/HRP/ZIF‐8/cHS film responds to glucose concentrations with a linear range of 10–200 µ m , which correlates to the salivary glucose level in healthy humans. The GOx/HRP/ZIF‐8/cHS film shows more than eight times and 13 times enhanced activity than GOx/HRP/cHS (without ZIF‐8) and GOx/HRP/ZIF‐8 on a non‐3D patterned substrate, respectively. The GOx/HRP/ZIF‐8/cHS film retains more than 80% or 100% of its initial activity after being stored for over 2 months at ≤24 or 4 °C, respectively.
Publisher: American Chemical Society (ACS)
Date: 19-07-2019
DOI: 10.1021/ACS.NANOLETT.9B01211
Abstract: Conventional ion-exchange polymeric membranes have limited selectivity due to their nonuniform and unstable structures. The rigid, regular, high porosity of metal organic framework (MOF) generally provides MOF membrane with exclusion/sieving effect but lack of electrostatic screening. Here we report for the first time a nonbiological highly selective MOF membrane with polyelectrolyte threaded in the nanochannel of metal organic framework (polyelectrolyte∼MOF) and its selective transport of alkali metal cations. Poly(sodium vinyl sulfonated-
Publisher: Wiley
Date: 04-08-2022
Abstract: Per‐ and polyfluoroalkyl substances (PFAS) are a group of recalcitrant molecules that have been used since the 1940s in a variety of applications. They are now linked to a host of negative health outcomes and are extremely resistant to degradation under environmental conditions. Currently, membrane technologies or adsorbents are used to remediate contaminated water. These techniques are either inefficient at capturing smaller PFAS molecules, have high energy demands, or result in concentrated waste that must be incinerated at high temperatures. This Review focuses on what role metal‐organic frameworks (MOFs) may play in addressing the PFAS problem. Specifically, how the unique properties of MOFs such as their well‐defined pore sizes, ultra‐high internal surface area, and tunable surface chemistry may be a sustainable solution for PFAS contamination.
Publisher: Wiley
Date: 19-09-2022
No related grants have been discovered for Joseph Funso Olorunyomi.