Cellulose Acetate Microbeads for Controlled Delivery of Essential Micronutrients.
Cellulose Acetate Microbeads for Controlled Delivery of Essential Micronutrients.
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DOI：
10.1021/acssuschemeng.2c07269
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发表时间：
2023-03-27
影响因子：
8.4
通讯作者：
Mattia, Davide
中科院分区：
文献类型：
--
作者：
Callaghan, Ciaran;Califano, Davide;Gomes, Marcos Henrique Feresin;Carvalho, Hudson Wallace Pereira de;Edler, Karen J.;Mattia, Davide
有控制地向土壤和植物提供微量营养素对提高农业产量至关重要。然而，这是使用化石燃料衍生的塑料载体实现的，带来了环境风险并导致全球碳排放。在这项工作中，一种新的和有效的方法来制备可生物降解的浸锌醋酸纤维素珠用作控释肥料。将纤维素乙酸酯在DMSO中的溶液滴入不同锌盐的抗溶剂水溶液中。液滴进行相转化，形成固体醋酸纤维素珠含有锌，作为锌盐的类型和浓度的函数。当在滴入锌盐抗溶剂水溶液之前将乙酸锌加入到乙酸纤维素-DMSO溶液中时，获得甚至更高的锌吸收值（高达15.5%）。使用不同溶剂制备的珠粒在水中的释放曲线通过Hofmeister系列与抗衡离子的性质相关联。在土壤中的研究表明，有可能延长释放时间，硫酸锌珠粒可达130天。这些结果以及高效的珠粒生产方法证明了锌浸渍醋酸纤维素珠粒替代目前使用的塑料基控释产品的潜力，有助于减少碳排放和植物和动物吸收塑料造成的潜在环境影响。精准农业中醋酸纤维素微球在水和土壤中锌的控制吸收和释放。
The controlled delivery of micronutrients to soil and plants is essential to increase agricultural yields. However, this is today achieved using fossil fuel-derived plastic carriers, posing environmental risks and contributing to global carbon emissions. In this work, a novel and efficient way to prepare biodegradable zinc-impregnated cellulose acetate beads for use as controlled release fertilizers is presented. Cellulose acetate solutions in DMSO were dropped into aqueous antisolvent solutions of different zinc salts. The droplets underwent phase inversion, forming solid cellulose acetate beads containing zinc, as a function of zinc salt type and concentration. Even higher values of zinc uptake (up to 15.5%) were obtained when zinc acetate was added to the cellulose acetate–DMSO solution, prior to dropping in aqueous zinc salt antisolvent solutions. The release profile in water of the beads prepared using the different solvents was linked to the properties of the counter-ions via the Hofmeister series. Studies in soil showed the potential for longer release times, up to 130 days for zinc sulfate beads. These results, together with the efficient bead production method, demonstrate the potential of zinc-impregnated cellulose acetate beads to replace the plastic-based controlled delivery products used today, contributing to the reduction of carbon emissions and potential environmental impacts due to the uptake of plastic in plants and animals. Controlled uptake and release of zinc from cellulose acetate microbeads in both water and soil for precision agriculture.
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影响因子：
9.9
作者：
Callaghan，Ciaran;Scott，Janet L.;Mattia，Davide
通讯作者：
Mattia，Davide
影响因子：
3
作者：
CAO, NJ;XU, Q;CHEN, LF
通讯作者：
CHEN, LF
影响因子：
8.4
作者：
Gregory KP;Wanless EJ;Webber GB;Craig VSJ;Page AJ
通讯作者：
Page AJ
影响因子：
11.4
作者：
Imseng, Martin;Wiggenhauser, Matthias;Bigalke, Moritz
通讯作者：
Bigalke, Moritz
影响因子：
4.2
作者：
Baran A;Wieczorek J;Mazurek R;Urbański K;Klimkowicz-Pawlas A
通讯作者：
Klimkowicz-Pawlas A