Colorful columns: A simple yet scalable method that yields multicompartmental microcylinders with controllable internal architectures, aspect ratios, and controlled surface modification uses electrohydrodynamic co-spinning followed by microsectioning. Compartments are discriminated by different colored dyes (see CLSM images; scale bars = 10.0 microm).

Figure 4. a) Selective surface modification of multicompartmental microcylinders with streptavidin using click chemistry. b) Axial and crosssectional CLSM micrographs (inset), confirming spatioselective surface modification. Scale bars: 50 mm for the main image, 20 mm for the insets.Angewandte Chemie 4661

Multicompartmental microcylinders can be produced by a combination of electrohydrodynamic co‐spinning and microsectioning, as described by J. Lahann et al. in their Communication on The number of individual compartments, relative compartment orientation, chemical composition and functionality, and aspect ratio can be precisely tuned. Each color in the longitudinal and cross‐sectional micrograph images depicts an individual compartment.

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