超声波的改革滴滴滴滴
Lokesh Malik1, Subhas Nandy1, Niladri Sekhar Satpathi1
1Micro Nano Bio Fluidics Unit, Department of Mechanical Engineering, Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu, India. ashis@iitm.ac.in.
Lab on a chip
|September 3, 2024
概括
一种新的声微流体技术不断地将多分散乳液改造成大小可控的液滴. 这种方法提供了精确的现场控制和无喷嘴,无堵塞的生成,以改善工业应用中的单分散性.
科学领域:
- 微流体学和声学研究
- 合体和接口科学科学
- 材料工程 材料工程是指材料工程.
背景情况:
- 单分散滴对于食品,化品和医疗保健行业至关重要.
- 现有的乳液形成方法已经很成熟,但缺乏持续的in situ乳液改造.
- 目前的滴滴生成技术经常面临堵塞的挑战,需要特定的液体流条件.
研究的目的:
- 引入一种连续流声微流体技术,用于在现场的乳液改制.
- 为了实现大小控制,从多分散乳液中产生单分散滴滴.
- 为了实现连续,无喷嘴和无堵塞的液滴生产,提高响应时间.
主要方法:
- 采用连续流声微流体平台,同时捕获滴滴,凝聚和分裂.
- 通过调整声音功率,独立于水力动力学参数,控制滴滴特征in situ.
- 开发了涉及毛细管 (Ca),声毛细管 (Caa) 和声粘毛细管 (Caav) 数量的理论缩放规律,以预测滴滴大小.
主要成果:
- 成功地将多分散乳液改制成大小受控的液滴,增强单分散性.
- 从液体插头中演示无喷嘴,无堵塞的滴滴生成,处理各种多聚分散源.
- 对生成滴滴大小的实验发现与基于Ca,Caa和Caav的理论预测有很强的一致性.
- 有声流和凝聚的特点,可以在被困的插头中有效地混合,产生单分散的混合样本滴.
结论:
- 声微流体技术为连续乳液改制和单散滴生成提供了强大的可控方法.
- 确定的声粘毛细管数 (Caav) 有效地控制了生成的滴滴大小.
- 该平台的不均质滴滴连续混合的能力对工业应用具有重大潜力,可能通过设计优化满足当前的吞吐量标准.
相关概念视频
01:17Ultrasonography
4.4K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
During an ultrasonography procedure, a handheld device called...
4.4K
01:20Ultrasound I: Abdominal Ultrasonography
193
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
193
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
88
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
88