可生物降解的基于德克斯特林的微凝,用于缓慢释放双重肥料,用于可持续农业
Ankita Dhiman1, Piyush Thaper1, Dimpy Bhardwaj1
1School of Chemical Sciences and Advanced Materials Research Centre, Indian Institute of Technology, Mandi, Himachal Pradesh 175075, India.
ACS applied materials & interfaces
|February 27, 2024
概括
可生物降解的德克斯特林微凝提供尿素和的缓慢释放,增强玉米的生长和营养吸收. 这项创新通过提高肥料效率和植物健康来支持可持续农业.
科学领域:
- 材料科学 材料科学 材料科学
- 农业科学 农业科学
- 生物技术是生物技术.
背景情况:
- 传统的肥料面临着诸如营养物质的漏和低效的吸收等挑战.
- 开发可控释放肥料对于可持续农业至关重要.
- 生物降解材料为营养物质提供提供了环保的替代品.
研究的目的:
- 为了合成和描述基于氨酸的可生物降解微凝 (PDXE MGs),用于缓慢释放尿素.
- 评估含尿素的PDXE MGs作为玉米肥料的有效性.
- 评估PDXE MGs作为源的潜力.
主要方法:
- 合成与三聚酸盐交叉连接的lauroyl功能化的德克斯特林微凝.
- 将尿素装入微凝中,实现高装载能力和封装效率.
- 在实验室中从功能化和非功能化微凝释放尿素的研究.
- 实地试验评估玉米种子发芽,植物生长和处理后的营养成分 (,叶绿素).
- 分析玉米根中的酸酶活性,以确定的可用性.
主要成果:
- PDXE MGs显示了高尿素负载 (∼10%) 和封装效率 (∼88%).
- 与非功能化的微凝相比,劳洛功能化显著减缓尿素释放 (90%在24天内).
- 尿素@PDXE MGs显著改善了玉米种子发芽和植物生长,而不是纯尿素.
- 用Urea@PDXE MGs处理的玉米叶的含量 (3.5%) 和叶绿素 (90 mg/g) 含量较高.
- 减少的酸酶活性表明,从降解PDXE MGs中释放出来.
结论:
- 基于德克斯的可生物降解微凝为尿素提供了有效的缓释系统.
- 开发的配方增强了植物的营养吸收和生长,为传统的尿素提供了更好的替代品.
- 作为一种可持续的肥料,PDXE MGs显得有前途,有助于改善农业实践和的可用性.
相关概念视频
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
01:22Modified-Release Drug Delivery Systems: Rate-Programmed I
Rate-programmed drug delivery systems (DDS) are designed to release drugs at specific, controlled rates to maintain consistent therapeutic levels. These systems are categorized based on their release mechanisms, including dissolution-controlled DDS, diffusion-controlled DDS, and combined dissolution-diffusion-controlled DDS.In dissolution-controlled DDS, the release rate depends on the slow dissolution of the drug itself or the surrounding matrix. Drugs with inherently slow dissolution rates,...
01:11Oral Drug Delivery Systems: Delayed-Release Systems
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...
01:27Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...