Engineering organs-on-a-chip via multi-channel microfluidics.

Area of Science:

• Biomedical Engineering
• Microfluidics
• Tissue Engineering

Background:

• Conventional in vitro models (animal studies, 2D/3D cell cultures) face limitations like interspecies differences, ethical concerns, and poor physiological replication.
• Organ-on-a-chip (OoC) technology offers a solution by mimicking organ-specific microphysiological systems.
• Multi-channel microfluidic chips are central to OoC, enabling 3D tissue formation and dynamic factor modulation.

Purpose of the Study:

• To systematically review the development of Organ-on-a-chip technology.
• To focus on the role of multi-channel microfluidics in OoC advancements.
• To provide a reference for technological iteration and interdisciplinary applications of microfluidic chip systems.

Main Methods:

• Review of Organ-on-a-chip (OoC) technology development.
• Focus on multi-channel microfluidic chip systems.
• Examination of biomimetic design, fabrication methods, applications, and challenges.

Main Results:

• OoC technology, utilizing multi-channel microfluidics, enables the creation of functional models (e.g., lung alveoli, blood-brain barrier, cardiac tissues).
• These models advance drug testing, disease modeling, and toxicological assessments.
• Key domains reviewed include biomimetic design, fabrication (soft lithography, 3D printing), and applications.

Conclusions:

• Organ-on-a-chip technology represents a significant advancement over conventional in vitro models.
• Multi-channel microfluidics are crucial for the design, fabrication, and application of OoCs.
• Further development in structural design, materials, fabrication, and biological applications is expected.