通过基于学习的量子传感来识别氨基酸β和病理
Shruti Sundar1,2, Marakkarakath Vadakkepurayil Jabir3, Lukas Glandorf1,2
1Institute for Biomedical Engineering and Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Zurich, Zurich 8057, Switzerland.
ACS photonics
|October 20, 2025
概括
量子纠可以区分健康和生病的生物样本. 这项研究使用纠光子和机器学习来检测小鼠的神经退行性疾病标志物,提供了一个新的无标签诊断工具.
科学领域:
- 量子物理学及其在生物传感中的应用.
- 神经科学和神经退行性疾病的研究.
- 生物光学和无标签的诊断技术.
背景情况:
- 光子纠为生物相互作用提供了独特的连贯性质.
- 纠脱凝性可以被利用来区分生物样本状态.
- 开发无标签的诊断工具对于生物和医学研究至关重要.
研究的目的:
- 展示使用偏振纠光子源用于无标签诊断的方法.
- 为了区分amyloidosis/tauopathy和控制菌株的转基因小鼠模型.
- 探索量子传感用于神经退行性疾病研究.
主要方法:
- 利用极化纠的光子源来探测生物样本.
- 研究了转基因和对照小鼠模型的皮质和海马皮区域.
- 采用监督机器学习方法来提高分类准确性.
主要成果:
- 与对照组相比,在转基因疾病模型中观察到纠的更大保存.
- 在未见的数据上使用机器学习实现了疾病和对照组之间的可靠区分.
- 量子传感结果通过共聚焦成像验证.
结论:
- 光子纠是生物样本的可行的无标签诊断工具.
- 量子传感显示出区分神经退行性疾病状态的潜力.
- 这种方法可以促进神经退行性疾病的研究和诊断.
更多相关视频
10:36High Resolution Quantitative Synaptic Proteome Profiling of Mouse Brain Regions After Auditory Discrimination Learning
Published on: December 15, 2016
11.0K
10:04Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging
Published on: October 20, 2017
14.0K
相关概念视频
03:03Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
03:03Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
01:23Alzheimer Disease ll: Pathophysiology
Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...