Covalent marriage of multi-walled carbon nanotubes (MWNTs) and β-cyclodextrin (β-CD) by silicon coupling reagents

Efficient oxidation of cinnamon oil to natural benzaldehyde over β-cyclodextrin-functionalized MWCNTs

“…In contrast, cinnamaldehydes bearing an electron-withdrawing chloride-or nitro-substituent gave conversions and selectivities of 63%-78% and 72%-85%, respectively, (Table 3, entries 6-12) even after a longer reaction time (180 min). The results in Table 3 also showed that the formation of weak interactions between β-CD and the substrates enhanced their reactivity depending on the size, shape and hydrophobicity of the guest molecule [3,56].…”

Carbon Nanotube-Based Chemiresistive Sensors

“…CNTs present excellent properties when used as sensing materials. However, pristine CNTs always show weak responses and low selectivity toward specific gas molecules due to the weak interaction between CNTs and analyte molecules, so there is a need to functionalize CNTs to improve both the sensitivity and the selectivity of SWNT sensors [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Noncovalent functionalization and covalent functionalization are the two primary methods to functionalize the surface of CNTs [ 24 , 25 , 26 , 27 ].…”