DLS原理
動態光散射技術 (DLS) (有時稱為準彈性光散射技術 (QELS)) 是一種非侵入性、經充分驗證的技術，可用於測量次微米級內之分子與顆粒的大小和大小分佈，而最新技術可達小於 1nm。
DLS的应用
動態光散射技術的典型應用是對分散或溶解於液體中的顆粒、乳劑或分子進行特性分析。
顆粒或分子在懸浮液中的布朗運動會造成雷射光以不同強度散射。
利用 Stokes-Einstein 關係式分析這些強度波動，可得出布朗運動的速度，並連帶得出顆粒大小。
Pharmaceuticals and Biotechnology
The Zetasizer Advance is instrumental in nanoparticle characterization for drug delivery systems, ensuring precise size distribution analysis crucial for drug efficacy and stability.
It facilitates the study of protein aggregation kinetics, enabling researchers to optimize protein formulations and ensure product quality in biopharmaceutical manufacturing.
Cosmetics and Personal Care
In the cosmetics industry, the Zetasizer Advance helps in characterizing the size and stability of colloidal dispersions, essential for the formulation of creams, lotions, and emulsions.
It aids in assessing the stability of nanoparticles in sunscreen formulations, ensuring effective UV protection and long-term stability of the product.
Food and Beverages
The Zetasizer Advance assists in analyzing the particle size distribution and aggregation behavior of food emulsions, influencing product texture, stability, and sensory attributes.
It is used to evaluate the stability of colloidal suspensions in beverages, ensuring product clarity and shelf-life stability.
Materials Science and Nanotechnology
In materials science, the Zetasizer Advance is employed for nanoparticle sizing and characterization, guiding the synthesis and optimization of functional nanomaterials for diverse applications.
It aids in studying the stability and aggregation kinetics of nanoparticles in coatings and composites, influencing material properties such as mechanical strength and optical transparency.
Environmental Monitoring
The Zetasizer Advance contributes to environmental monitoring efforts by analyzing the size distribution and aggregation behavior of nanoparticles in environmental samples, helping assess their impact on ecosystems and human health.
It aids in studying the behavior of engineered nanoparticles in wastewater treatment processes, ensuring efficient removal and minimizing environmental exposure.
我們的動態光散射技術
马尔文帕纳科提供的动态光散射技术具有以下优势：
- 准确、可靠、可重复的颗粒粒度分析，一两分钟即可完成分析。
- 多角度動態光散射 (MADLS®) 可提高 DLS 的分辨率并提供不受角度影响的粒度结果。
- 免校准测量颗粒浓度。
- 只需了解液体粘度即可得出平均粒度。
- 简单的样品制备，或无需制备，可直接测量高浓度混浊样品。
- 粒度测量范围为 10um 至 < 1nm。
- 可进行 MW < 1000Da 的分子大小测量。
- 样品需求量低（低至 3µL）。
- 可用于控制纳米颗粒制造的在线流程系统。
- 符合法规性标准ISO 13321、 ISO 22412、联邦法规第21章11款。
