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Updated: Jun 8, 2026
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Absorbent Microbiopsy Sampling and RNA Extraction for Minimally Invasive, Simultaneous Blood and Skin Analysis
Published on: February 21, 2019
Why minimally invasive skin sampling techniques? A bright scientific future
Christina Y Wang1, Howard I Maibach
1Department of Occupational and Environmental Medicine, Kaiser Permanente, San Francisco, California, USA.
Cutaneous and Ocular Toxicology
|October 2, 2010
Summary
Minimally invasive skin sampling methods like tape stripping and reverse iontophoresis offer new ways to analyze molecular and genetic processes. These techniques provide efficient, less risky alternatives for monitoring health and disease.
Area of Science:
- Biomedical science
- Dermatology
- Molecular biology
Background:
- Growing interest in minimally invasive skin sampling for molecular and biochemical analysis.
- Need for noninvasive methods to access internal biological processes.
Purpose of the Study:
- Overview of minimally invasive skin sampling methodologies.
- Examination of strengths, limitations, and future developments.
Main Methods:
- Literature search of PubMed, USPTO, DermTech, and CuDerm.
- Keywords included noninvasive skin sampling, skin stripping, reverse iontophoresis, and various biomarkers (mRNA, DNA, RNA, amino acids).
Main Results:
- Skin tape stripping and abrasion methods primarily sample the stratum corneum.
- Reverse iontophoresis is another minimally invasive technique.
- Other methods like hair root sampling and buccal smears offer deeper or cellular material but are more invasive.
Conclusions:
- Significant interest exists in noninvasive methods for accessing molecular and genetic information.
- Refined and validated sampling techniques offer efficient monitoring of bodily functions, drug levels, and diseases.
- These methods reduce patient discomfort and risk compared to traditional biopsies.
