Define Micro Total Analysis System (μTAS).

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## Micro Total Analysis System (μTAS)

**Definition:** a μTAS integrates all steps of a chemical or biological analysis (sample intake, preparation, reaction, separation and detection) on one miniature device. The concept was introduced by Manz and co-workers in 1990 and is closely related to the Lab-on-a-Chip (LoC).

```mermaid
flowchart LR
    A[Sample inlet] --> B[Preparation and filtering]
    B --> C[Mixing and reaction]
    C --> D[Separation]
    D --> E[Detection]
    E --> F[Data output]
```

### Advantages
- Very small sample and reagent volumes (nL to µL)
- Fast analysis and high throughput
- Portable, suitable for point-of-care use
- Automation lowers contamination and human error
- Low cost per test when mass-produced

### Applications
Blood glucose and clinical diagnostics, DNA analysis (PCR-on-chip), pathogen detection, drug screening, environmental water testing, food safety.

### Exam tip
The key words are "total" (all steps) and "integration on a single chip".

Micro Total Analysis System (μTAS)

Advantages

Applications

Exam tip

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