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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

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Published on: February 6, 2020

Novel agrochemical conjugates with self-assembling behaviour.

Qingtao Liu¹, Bim Graham², Adrian Hawley³

¹Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia.

Journal of Colloid and Interface Science

|November 3, 2017

Summary

This summary is machine-generated.

Conjugating agrichemicals to amphiphilic molecules enhances their compatibility and loading within liquid crystalline systems. Some conjugates self-assemble into lamellar structures in water, improving delivery potential.

Keywords:

Agricultural chemical Lyotropic liquid crystal Self assembly

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Synthesis and Characterization of Supramolecular Colloids

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Published on: April 22, 2016

Area of Science:

Materials Science
Agricultural Chemistry
Nanotechnology

Background:

Agrochemical delivery systems face challenges with compatibility and controlled release.
Lyotropic liquid crystalline (LLC) phases offer potential as advanced delivery matrices.
Developing effective LLC formulations requires understanding agrochemical-matrix interactions.

Purpose of the Study:

To investigate the conjugation of agrichemicals to amphiphilic moieties for improved LLC compatibility.
To explore the self-assembly behavior of novel agrochemical conjugates in aqueous environments.
To enhance the loading capacity and stability of agrochemicals within LLC carrier systems.

Main Methods:

Synthesis of lipid-like agrochemical conjugates using picloram and 2,4-D.
Incorporation of conjugates into phytantriol and monoolein-based LLC systems.
Characterization using small-angle X-ray scattering, cryo-TEM, and polarized optical microscopy.

Main Results:

Esterification with phytantriol and monoolein improved structural compatibility and loading of agrochemicals in LLCs.
Picloram-monoolein and picloram-monoelaidin conjugates self-assembled into lamellar structures in water.
Certain conjugates, like picloram-PEGn-oleate, exhibited poor compatibility, leading to phase separation.

Conclusions:

Conjugation of agrichemicals to specific amphiphilic groups enhances their performance in LLC delivery systems.
Tailored agrochemical conjugates can self-assemble, offering new avenues for formulation development.
Careful selection of amphiphilic moieties is crucial for successful integration into LLC matrices.