1
|
Mane S, Behera A, Hemadri V, Bhand S, Tripathi S. Micropump integrated white blood cell separation platform for detection of chronic granulomatous disease. Mikrochim Acta 2024; 191:295. [PMID: 38700804 DOI: 10.1007/s00604-024-06372-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/18/2024] [Indexed: 05/05/2024]
Abstract
White blood cells (WBCs) are robust defenders during antigenic challenges and prime immune cell functioning indicators. High-purity WBC separation is vital for various clinical assays and disease diagnosis. Red blood cells (RBCs) are a major hindrance in WBC separation, constituting 1000 times the WBC population. The study showcases a low-cost micropump integrated microfluidic platform to provide highly purified WBCs for point-of-care testing. An integrated user-friendly microfluidic platform was designed to separate WBCs from finger-prick blood (⁓5 μL), employing an inertial focusing technique. We achieved an efficient WBC separation with 86% WBC purity and 99.99% RBC removal rate in less than 1 min. In addition, the microdevice allows lab-on-chip colorimetric evaluation of chronic granulomatous disease (CGD), a rare genetic disorder affecting globally. The assay duration, straight from separation to disease detection, requires only 20 min. Hence, the proposed microfluidic platform can further be implemented to streamline various clinical procedures involving WBCs in healthcare industries.
Collapse
Affiliation(s)
- Sanjay Mane
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Abhishek Behera
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Vadiraj Hemadri
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Sunil Bhand
- Department of Chemistry, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Siddhartha Tripathi
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India.
| |
Collapse
|
2
|
Shin HS, Park J, Lee SY, Yun HG, Kim B, Kim J, Han S, Cho D, Doh J, Choi S. Integrative Magneto-Microfluidic Separation of Immune Cells Facilitates Clinical Functional Assays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302809. [PMID: 37365959 DOI: 10.1002/smll.202302809] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/05/2023] [Indexed: 06/28/2023]
Abstract
Accurately analyzing the functional activities of natural killer (NK) cells in clinical diagnosis remains challenging due to their coupling with other immune effectors. To address this, an integrated immune cell separator is required, which necessitates a streamlined sample preparation workflow including immunological cell isolation, removal of excess red blood cells (RBCs), and buffer exchange for downstream analysis. Here, a self-powered integrated magneto-microfluidic cell separation (SMS) chip is presented, which outputs high-purity target immune cells by simply inputting whole blood. The SMS chip intensifies the magnetic field gradient using an iron sphere-filled inlet reservoir for high-performance immuno-magnetic cell selection and separates target cells size-selectively using a microfluidic lattice for RBC removal and buffer exchange. In addition, the chip incorporates self-powered microfluidic pumping through a degassed polydimethylsiloxane chip, enabling the rapid isolation of NK cells at the place of blood collection within 40 min. This chip is used to isolate NK cells from whole blood samples of hepatocellular cancer patients and healthy volunteers and examined their functional activities to identify potential abnormalities in NK cell function. The SMS chip is simple to use, rapid to sort, and requires small blood volumes, thus facilitating the use of immune cell subtypes for cell-based diagnosis.
Collapse
Affiliation(s)
- Hee Sik Shin
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jeehun Park
- Soft Foundry Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seung Yeop Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyo Geun Yun
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Byeongyeon Kim
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jinho Kim
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 25-2, Seonggyungwan-ro, Jongno-gu, Seoul, 03063, Republic of Korea
| | - Sangbin Han
- Department of Anesthesiology and Pain Medicine Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Duck Cho
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, 25-2, Seonggyungwan-ro, Jongno-gu, Seoul, 03063, Republic of Korea
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
- Cell and Gene Therapy Institute (CGTI), Samsung Medical Center, 81, Irwon-Ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Junsang Doh
- Soft Foundry Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering, Institute of Engineering Research, BioMAX, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sungyoung Choi
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
- Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| |
Collapse
|