一个基于金纳米粒子的皮质醇感应传感器,用于非侵入性检测鱼类的压力
Yuki Tanaka1, Nur Asinah Binte Mohamed Salleh1, Marie Ruoyun Tan2
1Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
Biomolecules
|July 27, 2024
概括
一个新的非侵入性传感器可以检测鱼水中的皮质醇,这是一个关键的压力生物标志物. 这种基于金纳米粒子的吸食传感器提供实时压力监测,以改善水产养殖福利和生产力.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 水产养殖科学 水产养殖科学
背景情况:
- 皮质醇是鱼类中关键的压力生物标志物,对于监测水产养殖的福利和生产率至关重要.
- 目前的皮质醇检测方法通常需要侵入性采样,限制实时压力评估.
- 优化水产养殖实践需要非侵入性,敏感的压力监测工具.
研究的目的:
- 开发一种基于金纳米粒子 (AuNP) 的非侵入性胃感应器,用于检测鱼水中的皮质醇.
- 为了在复杂的水产养殖环境中实现皮科莫拉皮质醇度的灵敏检测.
- 为实时压力监测提供工具,提高鱼类福利和生产力.
主要方法:
- 一个皮质醇特异性的DNA合体与一个阻断分子 (CALNN) 结合到金纳米粒子 (AuNPs).
- 利用化 (MgCl2) 诱导的聚合用于皮质醇检测,基于阿普坦体结构变化和硬质稳定.
- 在循环水产养殖系统 (RAS) 水样上使用高性能液态染色学 (HPLC) 验证适应传感器.
主要成果:
- 开发的食欲传感器在35分钟内实现了皮质醇100 pM的检测极限 (LOD).
- 传感器在复杂的鱼水矩阵中显示出稳定性.
- 经过验证的传感器在RAS水样中成功检测到由不同的压力范式引起的皮质醇水平变化.
结论:
- 基于金纳米粒子的胃感应传感器为鱼类压力监测提供了一种敏感且非侵入性的方法.
- 这种可在现场部署的传感器可以实时检测皮质醇,这对于优化水产养殖实践至关重要.
- 这项技术具有通过有效的压力管理来提高鱼类福利和水产养殖生产率的巨大潜力.
相关概念视频
Responses to Salt Stress
15.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
15.1K
Stress Concentrations
834
Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller...
834
Stress Concentrations
782
The concept of stress concentration is crucial for understanding how materials respond under bending stresses, particularly when there are irregularities or discontinuities in the material's geometry. Normally, stress in a symmetric member subjected to pure bending is assumed to be uniformly distributed across the entire cross-section. However, this assumption does not hold when there are variations in the cross-sectional geometry or the presence of notches and holes.
The stress...
The stress...
782
Stress Response System
1.1K
The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
In the alarm stage, the body's...
Alarm stage
In the alarm stage, the body's...
1.1K


