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SEM-EDAX: A tool for microanalytical elemental mapping in butterfly wing scales
1Department of Zoology, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala 695581, India.
Micron (Oxford, England : 1993)
|June 19, 2026
Summary
Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive X-ray Analysis (EDAX) reveals diverse elemental compositions in butterfly wing scales. This microanalytical technique highlights regional variations and identifies key elements, offering insights into scale structure.
Area of Science:
- * Materials Science
- * Microscopy
- * Zoology
Background:
- * Microanalytical studies of butterfly wing scales are limited, often focusing on morphology and optics.
- * Understanding elemental composition is crucial for a comprehensive view of wing scale function.
Purpose of the Study:
- * To comparatively assess elemental composition and distribution in ten butterfly species' wing scales.
- * To evaluate the efficacy of Scanning Electron Microscopy with Energy-Dispersive X-ray Analysis (SEM-EDAX) for microanalysis.
Main Methods:
- * Utilized SEM-EDAX for microscale elemental analysis of wing scales from ten butterfly species.
- * Performed elemental mapping to visualize spatial distribution of elements within scales.
Main Results:
- * Identified carbon, oxygen, and nitrogen as dominant elements across all species.
- * Observed localized occurrence of trace elements like potassium, aluminium, silicon, chlorine, molybdenum, and sodium.
- * Elemental mapping revealed heterogeneous distribution patterns within different wing regions.
Conclusions:
- * SEM-EDAX is an effective tool for characterizing elemental heterogeneity in butterfly wing scales.
- * The study provides a comparative baseline for future research on butterfly wing composition and structure.
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