Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 66, Issue 4, Pages 806-813Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.7b04222
Keywords
nanocomposite; layered double hydroxide; hexaconazole; nanodelivery; agronanochemical
Funding
- Universiti Putra Malaysia
- Ministry of Higher Education of Malaysia (UPM-MOHE) grants under the NANOMITE [9443100, 5526300]
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A fungicide, hexaconazole was successfully intercalated into the intergalleries of zinc/aluminum-layered double hydroxide (ZALDH) using the ion-exchange method. Due to the intercalation of hexaconazole, the basal spacing of the ZALDH was increased from 8.7 angstrom in ZALDH to 29.4 angstrom in hexaconazole-intercalated ZALDH (HZALDH). The intercalation of hexaconazole into the interlayer of the nanocomposite was confirmed using the Fourier-transform infrared (FTIR) study. This supramolecular chemistry intercalation process enhanced the thermal stability of the hexaconazole moiety. The fungicide loading was estimated to be 51.8%. The nanodelivery system also shows better inhibition toward the Ganoderma boninense growth than the counterpart, free hexaconazole. The results from this work have a great potential to be further explored for combating basal stem rot (BSR) disease in oil palm plantation.
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