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Recruiting Unicellular Algae for the Mass Production of Nanostructured Perovskites.

ABSTRACT: Functional capacities of lead halide perovskites are strongly dependent on their morphology, crystallographic texture, and internal ultrastructure on the nano- and the meso-scale. In the last decade, significant efforts are directed towards the development of novel synthesis routes that would overcome the morphological constraints provided by the physical and crystallographic properties of these materials. In contrast, various living organisms, such as unicellular algae, have the ability to mold biogenic crystals into a vast variety of intricate nano-architectured shapes while keeping their single crystalline nature. Here, using the cell wall of the dinoflagellate L. granifera as a model, sustainably harvested biogenic calcite is successfully transformed into nano-structured perovskites. Three variants of lead halide perovskites CH₃ NH₃ PbX₃ are generated with X = Cl^- , Br^- and I^- ; exhibiting emission peak-wavelength ranging from blue, to green, to near-infrared, respectively. The approach can be used for the mass production of nano-architectured perovskites with desired morphological, textural and, consequently, physical properties exploiting the numerous templates provided by calcite forming unicellular organisms.

SUBMITTER: Kuhrts L

PROVIDER: S-EPMC10104627 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Recruiting Unicellular Algae for the Mass Production of Nanostructured Perovskites.

Kuhrts Lucas L Helmbrecht Lukas L Noorduin Willem L WL Pohl Darius D Sun Xiaoxiao X Palatnik Alexander A Wetzker Cornelia C Jantschke Anne A Schlierf Michael M Zlotnikov Igor I

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20230212 11

Functional capacities of lead halide perovskites are strongly dependent on their morphology, crystallographic texture, and internal ultrastructure on the nano- and the meso-scale. In the last decade, significant efforts are directed towards the development of novel synthesis routes that would overcome the morphological constraints provided by the physical and crystallographic properties of these materials. In contrast, various living organisms, such as unicellular algae, have the ability to mold ...[more]

PMID: 36775880

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Project description:BackgroundBacteria occur in facultative association and intracellular symbiosis with a diversity of eukaryotic hosts. Recently, we have helped to characterise an intracellular nitrogen fixing bacterium, the so-called spheroid body, located within the diatom Rhopalodia gibba. Spheroid bodies are of cyanobacterial origin and exhibit features that suggest physiological adaptation to their intracellular life style. To investigate the genome modifications that have accompanied the process of endosymbiosis, here we compare gene structure, content and organisation in spheroid body and cyanobacterial genomes.ResultsComparison of the spheroid body's genome sequence with corresponding regions of near free-living relatives indicates that multiple modifications have occurred in the endosymbiont's genome. These include localised changes that have led to elimination of some genes. This gene loss has been accompanied either by deletion of the respective DNA region or replacement with non-coding DNA that is AT rich in composition. In addition, genome modifications have led to the fusion and truncation of genes. We also report that in the spheroid body's genome there is an accumulation of deleterious mutations in genes for cell wall biosynthesis and processes controlled by transposases. Interestingly, the formation of pseudogenes in the spheroid body has occurred in the presence of intact, and presumably functional, recA and recF genes. This is in contrast to the situation in most investigated obligate intracellular bacterium-eukaryote symbioses, where at least either recA or recF has been eliminated.ConclusionOur analyses suggest highly specific targeting/loss of individual genes during the process of genome reduction and establishment of a cyanobacterial endosymbiont inside a eukaryotic cell. Our findings confirm, at the genome level, earlier speculation on the obligate intracellular status of the spheroid body in Rhopalodia gibba. This association is the first example of an obligate cyanobacterial symbiosis involving nitrogen fixation for which genomic data are available. It represents a new model system to study molecular adaptations of genome evolution that accompany a switch from free-living to intracellular existence.

Dataset Information

Recruiting Unicellular Algae for the Mass Production of Nanostructured Perovskites.

Publications

Recruiting Unicellular Algae for the Mass Production of Nanostructured Perovskites.

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