Microfluidic encapsulation for controlled release and its potential for nanofertilisers,Chemical Society Reviews

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Microfluidic encapsulation for controlled release and its potential for nanofertilisers
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2021-09-13 , DOI: 10.1039/d1cs00465d
Tu Nguyen Quang Le _{1,

2} , Nam Nghiep Tran _{1,

3} , Marc Escribà-Gelonch ₄ , Christophe A Serra ₅ , Ian Fisk _{6,

7} , David Julian McClements ₈ , Volker Hessel _{1,

9}

Affiliation

Nanotechnology is increasingly being utilized to create advanced materials with improved or new functional attributes. Converting fertilizers into a nanoparticle-form has been shown to improve their efficacy but the current procedures used to fabricate nanofertilisers often have poor reproducibility and flexibility. Microfluidic systems, on the other hand, have advantages over traditional nanoparticle fabrication methods in terms of energy and materials consumption, versatility, and controllability. The increased controllability can result in the formation of nanoparticles with precise and complex morphologies (e.g., tuneable sizes, low polydispersity, and multi-core structures). As a result, their functional performance can be tailored to specific applications. This paper reviews the principles, formation, and applications of nano-enabled delivery systems fabricated using microfluidic approaches for the encapsulation, protection, and release of fertilizers. Controlled release can be achieved using two main routes: (i) nutrients adsorbed on nanosupports and (ii) nutrients encapsulated inside nanostructures. We aim to highlight the opportunities for preparing a new generation of highly versatile nanofertilisers using microfluidic systems. We will explore several main characteristics of microfluidically prepared nanofertilisers, including droplet formation, shell fine-tuning, adsorbate fine-tuning, and sustained/triggered release behavior.

中文翻译：

用于控制释放的微流体封装及其在纳米肥料中的潜力

纳米技术越来越多地被用于创造具有改进或新功能属性的先进材料。已证明将肥料转化为纳米颗粒形式可以提高其功效，但目前用于制造纳米肥料的程序通常具有较差的可重复性和灵活性。另一方面，微流体系统在能源和材料消耗、多功能性和可控性方面优于传统的纳米颗粒制造方法。增加的可控性可以导致形成具有精确和复杂形态的纳米颗粒（例如、可调尺寸、低多分散性和多核结构）。因此，它们的功能性能可以针对特定应用进行定制。本文回顾了使用微流体方法制造的用于封装、保护和释放肥料的纳米输送系统的原理、形成和应用。控制释放可以通过两种主要途径实现：(i) 吸附在纳米载体上的营养物质和 (ii) 封装在纳米结构内的营养物质。我们的目标是强调使用微流体系统制备新一代高度通用的纳米肥料的机会。我们将探索微流体制备的纳米肥料的几个主要特征，包括液滴形成、壳微调、吸附质微调和持续/触发释放行为。

更新日期：2021-09-13

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