Microfluidics for Bioanalysis: From Sample Preparation to Integrated Detection

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "B:Biology and Biomedicine".

Deadline for manuscript submissions: 25 June 2026 | Viewed by 1633

Special Issue Editor


E-Mail Website
Guest Editor
Mechanical Engineering, Chosun University, 146 Chosundae-gil, Seoseok-dong, Dong-gu, Gwangju, Republic of Korea
Interests: biomicrofluidics; blood rheology; blood dynamics; lab-on-a-chip
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Bio-samples provide clinical and significant information on the healthy status or disease progression. Blood flow in micron-sized capillary channels (i.e., microcirculation) is substantially determined by blood mechanical factors, including hematocrit, viscosity, aggregation, and deformability. These factors have also been regarded as clinically important biomarkers for screening or diagnosing patients’ diseases. Thus, consistent assessment of blood mechanical properties has been considered a vital issue in blood biophysics. More recently, microfluidics has been extensively employed to probe blood mechanical properties. When red blood cells are altered from a normal state to an abnormal physiological state, biophysical properties or morphology parameters (i.e., surface area, volume, or density) are varied significantly and heterogeneously. For early detection, a novel microfluidic platform or medical device needs to detect small variations or subpopulations in whole blood. This Special Issue welcomes manuscripts related to the following topics, but is not limited to them:

  1. Blood-on-a-chip for probing blood mechanical properties;
  2. Single-cell morphology analysis of bio-sample;
  3. Mathematical modeling of blood flow in micro-scale physics;
  4. Disposable microfluidic device for POCT test.

Prof. Dr. Yang Jun Kang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • blood-on-a-chip for quantification of hemorheological properties
  • single cell morphology analysis of bio-sample
  • mathematical modeling under micro-scale physics
  • disposable microfluidic device for POCT test
  • experimental visualization technique under microfluidic platform
  • microfluidic device for quantifying heterogeneity of red blood cells
  • microfluidic device for handing or analyzing biofluids
  • blood-on-a-chip
  • disposable POCT device
  • heterogeneity of RBCs
  • on-chip detection of hemorheological properties of blood
  • POCT device to evaluate RBCs’ flow properties
  • microfluidic systems with integrated sensors for single-red-blood-cell analysis

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

21 pages, 1917 KB  
Article
Comparative Evaluation of Two Image-Analysis Software Platforms for Microfluidic Assessment of Red Blood Cell Deformability in Chronic Lymphocytic Leukemia
by Anika Alexandrova-Watanabe, Tihomir Tiankov, Aleksandar Iliev, Ariana Langari, Miroslava Ivanova, Lidia Gartcheva, Margarita Guenova, Emilia Abadjieva, Sashka Krumova and Svetla Todinova
Micromachines 2026, 17(3), 389; https://doi.org/10.3390/mi17030389 - 23 Mar 2026
Viewed by 521
Abstract
Red blood cell (RBC) deformability is a key determinant of microcirculatory flow and can be altered in hematological disorders such as chronic lymphocytic leukemia (CLL). This study aimed to evaluate RBC deformability under controlled microfluidic flow conditions and to assess the influence of [...] Read more.
Red blood cell (RBC) deformability is a key determinant of microcirculatory flow and can be altered in hematological disorders such as chronic lymphocytic leukemia (CLL). This study aimed to evaluate RBC deformability under controlled microfluidic flow conditions and to assess the influence of software platform choice on deformability quantification. RBC suspensions from healthy individuals and untreated CLL patients were analyzed using a microfluidic imaging system across a range of shear rates. A dedicated image-processing algorithm was developed and implemented in two software environments (LabVIEW and Python) to automatically detect deformed cells, measure major and minor cell axes, and calculate the deformability index (DI). Both analytical approaches demonstrated a shear-dependent increase in DI in healthy controls, whereas RBCs from CLL patients exhibited reduced deformability and a blunted response to increasing shear rates, particularly at intermediate shear rates. Although LabVIEW produced consistently higher absolute DI values than Python, both platforms showed strong correlation and preserved the same relative trends and group discrimination. These findings demonstrate that microfluidic image flow analysis provides a robust approach for assessing RBC biomechanics and highlight the importance of standardized image-processing workflows for reliable deformability quantification across software platforms. Full article
Show Figures

Figure 1

33 pages, 9958 KB  
Article
Micro Blood Flow-Resolved Rheometry
by Yang Jun Kang
Micromachines 2026, 17(3), 331; https://doi.org/10.3390/mi17030331 - 6 Mar 2026
Cited by 1 | Viewed by 623
Abstract
For effectively assessing blood, red blood cell (RBC) aggregation and blood viscosity have been measured in microfluidic environments. However, the previous methods still face several challenges (dead-volume loss, RBC sedimentation, hematocrit-sensitive blood velocity, and precise flow rate control). In this study, a novel [...] Read more.
For effectively assessing blood, red blood cell (RBC) aggregation and blood viscosity have been measured in microfluidic environments. However, the previous methods still face several challenges (dead-volume loss, RBC sedimentation, hematocrit-sensitive blood velocity, and precise flow rate control). In this study, a novel method is suggested to resolve several issues. Air cavity (Vair = 250 μL) is secured above the blood column (at least 100 μL) loaded into a driving syringe. To probe RBC aggregation and blood viscosity, a microfluidic chip consists of a main channel (γ˙ > 1000 s−1) and an aggregation channel (γ˙ < 50 s−1). Blood is supplied into a microfluidic chip with two-step blood delivery (i.e., air compression for RBC aggregation, and syringe pump for blood viscosity). RBC aggregation index and blood viscosity are obtained from time-lapse image intensity and blood flow rate in both channels. As performance demonstrations, first, the measurement accuracy of fluid viscosity is validated with glycerin solution. Then, the present method is adopted to probe the difference in hematocrit and dextran concentration. At last, the proposed method is employed to detect heat-shocked RBCs (45~50 °C for 40 min). In conclusion, the proposed method has the ability to accurately measure substantial changes in RBCs or blood medium. Full article
Show Figures

Figure 1

Back to TopTop