<br>通过多合一组合策略和深度学习实现农用化学品靶向递送的纳米材料,ACS Applied Materials & Interfaces

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通过多合一组合策略和深度学习实现农用化学品靶向递送的纳米材料
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-09-01 , DOI: 10.1021/acsami.1c11914
Yanzheng Ji ₁ , Song Ma ₁ , Shaoqing Lv ₂ , Yingjie Wang ₁ , Shaoyu Lü ₁ , Mingzhu Liu ₁

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现代农业的发展，促使除草剂、杀虫剂、化肥的投入加大。然而，这些农用化学品的精确释放和定向输送仍然是一个挑战。在这里，采用农药-肥料一体组合（PFAC）策略和深度学习来形成一个用于农用化学品的受控和有针对性的输送的系统。该系统主要由三个部分组成：（1）中空介孔二氧化硅（HMS），用于封装除草剂和相变材料； (2)聚多巴胺(PDA)涂层，提供光热效应； (3) 沸石咪唑酯骨架 (ZIF8)，提供微量营养素 Zn ²⁺并封装杀虫剂。结果表明，在近红外（NIR）照射（800 nm，0.5 W cm ^–2 ）5分钟后，浓度为5 mg mL ^–1的PFAC达到1-十四醇的相变温度（37.5 °C）。收集玉米和杂草的数据，并将其转发给深度学习算法进行模型构建，以实现目标检测并进一步进行有针对性的除草。现场处理结果表明，在近红外辐射2 h、24 h后，PFAC处理24 h后，与空白组相比，菊苣的生长受到显着抑制。该系统结合农化创新和人工智能技术，实现除草、杀虫和养分供应的协同效应，将有望实现精准农业和可持续农业。

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Nanomaterials for Targeted Delivery of Agrochemicals by an All-in-One Combination Strategy and Deep Learning

The development of modern agriculture has prompted the greater input of herbicides, insecticides, and fertilizers. However, precision release and targeted delivery of these agrochemicals still remain a challenge. Here, a pesticide-fertilizer all-in-one combination (PFAC) strategy and deep learning are employed to form a system for controlled and targeted delivery of agrochemicals. This system mainly consists of three components: (1) hollow mesoporous silica (HMS), to encapsulate herbicides and phase-change material; (2) polydopamine (PDA) coating, to provide a photothermal effect; and (3) a zeolitic imidazolate framework (ZIF8), to provide micronutrient Zn²⁺ and encapsulate insecticides. Results show that the PFAC at concentration of 5 mg mL^–1 reaches the phase transition temperature of 1-tetradecanol (37.5 °C) after 5 min of near-infrared (NIR) irradiation (800 nm, 0.5 W cm^–2). The data of corn and weed are collected and relayed to deep learning algorithms for model building to realize object detection and further targeted weeding. In-field treatment results indicated that the growth of chicory herb was significantly inhibited when treated with the PFAC compared with the blank group after 24 h under NIR irradiation for 2 h. This system combines agrochemical innovation and artificial intelligence technology, achieves synergistic effects of weeding and insecticide and nutrient supply, and will potentially achieve precision and sustainable agriculture.

更新日期：2021-09-15

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