TY - JOUR
T1 - Development of a Metal-Organic Framework/Textile Composite for the Rapid Degradation and Sensitive Detection of the Nerve Agent VX
AU - De Koning, Martijn C.
AU - Ma, Kaikai
AU - Van Grol, Marco
AU - Iordanov, Ivan
AU - Kruijne, Melvin J.L.
AU - Idrees, Karam B.
AU - Xie, Haomiao
AU - Islamoglu, Timur
AU - Bross, Rowdy P.T.
AU - Farha, Omar K.
N1 - Funding Information:
M.C.d.K. and M.v.G. thank the Dutch Ministry of Defense for financial support under CBRN Program V1802. O.K.F. acknowledges the financial support from the USA Army Research Office (W911NF2020136) for the MOF/fiber composite preparation and the USA Defense Threat Reduction Agency (HDTRA1-18-1-0003) for DMNP hydrolysis work. This work made use of the EPIC facility of Northwestern University’s NUANCE Center, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSFECCS1542205), the MRSEC program (NSF DMR-1720139) at the Materials Research Center, the International Institute for Nanotechnology (IIN), the Keck Foundation, and the State of Illinois through the IIN. The authors thank Dr Kent Kirlikovali for proofreading the manuscript.
Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/2/8
Y1 - 2022/2/8
N2 - In the case of an incident with nerve agents, the timely and ready detection and identification of such a substance on suspected surfaces is essential. However, the detection of low levels of nerve agents on a surface is a considerable challenge for conventional detection equipment, especially with VX, a highly toxic nerve agent with low volatility. Here, we report the development of a metal-organic framework (MOF)/fabric composite that gives a rapid, visual, and sensitive color response when pre-wetted and rubbed over a VX-contaminated surface. The fabric is composed of cotton textile modified with the zirconium-based MOF MOF-808 that possesses a bidentate reactive dye, ditopic 5,5-dithiobis(2-nitrobenzoic acid) (DTNB), on its nodes. The crystal structure of DTNB@MOF-808 showed that DTNB bridges between two adjacent nodes in MOF-808. The colorless composite changes to bright orange upon contact with VX as a result of the degradation of VX and the concomitant reaction of the dye with a VX degradation product in the MOF pores.
AB - In the case of an incident with nerve agents, the timely and ready detection and identification of such a substance on suspected surfaces is essential. However, the detection of low levels of nerve agents on a surface is a considerable challenge for conventional detection equipment, especially with VX, a highly toxic nerve agent with low volatility. Here, we report the development of a metal-organic framework (MOF)/fabric composite that gives a rapid, visual, and sensitive color response when pre-wetted and rubbed over a VX-contaminated surface. The fabric is composed of cotton textile modified with the zirconium-based MOF MOF-808 that possesses a bidentate reactive dye, ditopic 5,5-dithiobis(2-nitrobenzoic acid) (DTNB), on its nodes. The crystal structure of DTNB@MOF-808 showed that DTNB bridges between two adjacent nodes in MOF-808. The colorless composite changes to bright orange upon contact with VX as a result of the degradation of VX and the concomitant reaction of the dye with a VX degradation product in the MOF pores.
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U2 - 10.1021/acs.chemmater.1c03895
DO - 10.1021/acs.chemmater.1c03895
M3 - Article
AN - SCOPUS:85123639254
SN - 0897-4756
VL - 34
SP - 1269
EP - 1277
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 3
ER -