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The Droplet Learned the Shape of a Mouth

Oil, water and a block copolymer produced reversible flowers, branches, cups and a nonliving version of cellular engulfment.

Published Updated Story ID: mp-2026-08-02-002
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Summary

Oil, water and a block copolymer produced reversible flowers, branches, cups and a nonliving version of cellular engulfment.

New York University researchers added the P123 block copolymer to microscopic oil droplets suspended in water and watched the spheres transform into flower-like forms, branches, dumbbells, disks and cups. Changing polymer concentration or temperature could reverse the sequence. Under selected conditions, a cup folded closed around surrounding liquid and suspended particles, resembling macropinocytosis without genes, proteins or cellular machinery. The work offers a controllable model for studying shape change and possible adaptive materials, but the droplets are not artificial life and no application was demonstrated.

Why it matters

Oil, water and a block copolymer produced reversible flowers, branches, cups and a nonliving version of cellular engulfment.

Limits and context

  • The work offers a controllable model for studying shape change and possible adaptive materials, but the droplets are not artificial life and no application was demonstrated.

Key claims

  1. Oil, water and a block copolymer produced reversible flowers, branches, cups and a nonliving version of cellular engulfment.

    Qualification: The work offers a controllable model for studying shape change and possible adaptive materials, but the droplets are not artificial life and no application was demonstrated.

    Evidence: source-2026-08-02-002

Sources

  1. Nature Communications: Morphogenic colloidsNature Communications · secondary reporting

Corrections

No corrections have been recorded for this story.