An eco-friendly MIL-101@CMCS double-coated dinotefuran for long-acting active release and sustainable pest control

A nanocarrier pesticide delivery system with promising benefits in the case of dinotefuran: strikingly enhanced bioactivity and reduced pesticide residue

“…Although dinotefuran is considered as a safe neonicotinoid insecticide for crops, humans and animals, 37 whether the introduction of SPc brings chemical damage to plants is an inevitable issue. The symptom of chemical damage is usually observed 1-5 d after the pesticide application, and the damaged plants can recover in 10-15 d. Thus, the status of the above-treated plants was observed after the application of dinotefuran or the dinotefuran/SPc complex, and the plant weight and height and the length and width of the largest leaf were measured 7 d after the treatment.…”

“…[34][35][36] Some nanocarriers have been applied for dinotefuran-controlled release, improving its utilization efficiency, decreasing leaching loss, and promoting ecological safety. [37][38][39] Our previous studies have focused on the enhanced bioactivity of SPc-delivered pesticides. However, the potential negative effects of the pesticide/SPc complex such as residue and safety toward natural enemies and plants should be evaluated before large-scale application.…”

Carboxymethyl Chitosan-Modified Graphene Oxide as a Multifunctional Vector for Deltamethrin Delivery and pH-Responsive Controlled Release, Enhanced Leaf Affinity, and Improved Mosquito-Killing Activity

“…The characteristic peaks in the range of 3366–3455 cm –1 (O–H stretching vibration) and at 2925 cm –1 (C–H flexion vibration), 1633 cm –1 (CC stretching vibration), and 1735 cm –1 (CO stretching vibration) can be assigned to GO . The characteristic peaks at 2912 cm –1 (C–H flexion vibration), 1604 and 1427 cm –1 (CO stretching vibration), 1311 cm –1 (C–N stretching vibration), and 1058 cm –1 (C–O stretching vibration) correspond to CMCS . The peaks at 3048 and 2964 cm –1 correspond to the stretching vibration of alkyl C–H, the peak at 1736 cm –1 is the stretching vibration of CO, and the peak at 1590 cm –1 is the stretching vibration of CC–Br .…”

“…41 The characteristic peaks at 2912 cm −1 (C−H flexion vibration), 1604 and 1427 cm −1 (C�O stretching vibration), 1311 cm −1 (C−N stretching vibration), and 1058 cm −1 (C−O stretching vibration) correspond to CMCS. 42 The peaks at 3048 and 2964 cm −1 correspond to the stretching vibration of alkyl C−H, the peak at 1736 cm −1 is the stretching vibration of C�O, and the peak at 1590 cm −1 is the stretching vibration of C�C−Br. 43 It is obviously that the typical C�C−Br peak occurred in GO-CMCS-DM, indicating the successful loading of DM by GO-CMCS.…”

Copper Glufosinate-Based Metal–Organic Framework as a Novel Multifunctional Agrochemical

“…For instance, a Ca-Llactate material was proposed for the release of the fumigant cis-1,3-dichloropropene, 22 the iron(III) trimesate MIL-100(Fe) for the release of the fungicide azoxystrobin, 23 and the composite chromium(III) terephatalate MIL-101@CMCS (CMCS: carboxymethyl chitosan) as the delivery agent of the insecticide dinotefuran. 24 In this work, we want to go a step further in the promising role of MOFs in agriculture: using for the first time pesticides as building blocks for the MOF construction. Pesticide-based MOFs would be attractive formulation prototypes for the targeted multiple release of pesticides since (i) active ingredients (AIs) are a constitutive part of the matrix itself, insuring high loadings of the AIs and avoiding multistep procedures to load them ("one-pot synthesis"); (ii) both the cation and organic linker can be "active", mimicking bioagrochemicals (based on many active ingredients) achieving a combined/synergic ef fect and reducing the potential development of resistances; and (iii) they are "economically appealing" since one formulation will have multiple actions and they will be based on low cost and eco-f riendly reactants.…”