Growth, Distribution, and Photosynthesis of Chlamydomonas Reinhardtii in 3D Hydrogels

Author:

Oh Jeong‐Joo1ORCID,Ammu Satya2,Vriend Vivian Dorine13,Kieffer Roland1,Kleiner Friedrich Hans1,Balasubramanian Srikkanth13,Karana Elvin3,Masania Kunal2ORCID,Aubin‐Tam Marie‐Eve1ORCID

Affiliation:

1. Department of Bionanoscience Kavli Institute of Nanoscience Delft University of Technology Van der Maasweg 9 Delft 2629 HZ The Netherlands

2. Shaping Matter Lab Faculty of Aerospace Engineering Delft University of Technology Kluyverweg 1 Delft 2629 HS The Netherlands

3. Department of Sustainable Design Engineering Faculty of Industrial Design Engineering Delft University of Technology Landbergstraat 15 Delft 2628 CE The Netherlands

Abstract

AbstractEngineered living materials (ELMs) are a novel class of functional materials that typically feature spatial confinement of living components within an inert polymer matrix to recreate biological functions. Understanding the growth and spatial configuration of cellular populations within a matrix is crucial to predicting and improving their responsive potential and functionality. Here, this work investigates the growth, spatial distribution, and photosynthetic productivity of eukaryotic microalga Chlamydomonas reinhardtii (C. reinhardtii) in three‐dimensionally shaped hydrogels in dependence of geometry and size. The embedded C. reinhardtii cells photosynthesize and form confined cell clusters, which grow faster when located close to the ELM periphery due to favorable gas exchange and light conditions. Taking advantage of location‐specific growth patterns, this work successfully designs and prints photosynthetic ELMs with increased CO2 capturing rate, featuring high surface to volume ratio. This strategy to control cell growth for higher productivity of ELMs resembles the already established adaptations found in multicellular plant leaves.

Funder

National Research Foundation of Korea

HORIZON EUROPE European Research Council

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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