RESEARCH UPDATE

Coordination-guided self-assembly forms pH-responsive halloysite carriers

Conceptual illustration of a leaf, droplets and nanocarriers

EDTA–calcium coordination assembles halloysite nanotubes into porous microspheres for abamectin or prometryn delivery, with responsive release, leaf affinity and UV protection.

The carrier design is evaluated separately with the insecticide abamectin and the herbicide prometryn.

The official report describes release under mildly acidic conditions. The paper appears in Small 20(40), 2402921.

Related publications

Responsive Agrochemical & Nutrient Delivery · 2024

Spherical Assembly of Halloysite Clay Nanotubes as a General Reservoir of Hydrophobic Pesticides for pH‐Responsive Management of Pests and Weeds

Guopeng Teng, et al.
Small, 2024, 20(40), 2402921
EDTA–calcium coordination assembles halloysite nanotubes into porous microspheres for abamectin or prometryn delivery, with responsive release, leaf affinity and UV protection.
Research notes, full authors and sources

Question: How can natural clay nanotubes form responsive reservoirs for hydrophobic pesticides?

Design and findings: EDTA–calcium coordination assembles halloysite nanotubes into porous microspheres for abamectin or prometryn delivery, with responsive release, leaf affinity and UV protection.

Scope: Abamectin and prometryn are evaluated separately; results do not establish universal applicability to every pesticide or crop.

Authors: Guopeng Teng; Chaowen Chen; Xueqi Ma; Hengjian Mao; Xue Yuan; Huan Xu; Zhengyan Wu; Jia Zhang

Online publication: 2024-06-01