HEИндивидуална стипендия2023–2025

PROTO-BACT · Bottom-up chemical construction of photosynthetic cyanobacteria mimics and their controlled assembly into autonomous and self-regulating biofilm-like materials for hydrogen production

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2023-10-01 → 2025-09-30
Финансиране от ЕС: 172 750 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Синтетични структури, имитиращи цианобактерии, се използват за разлагане на вода и производство на водород под въздействието на синя светлина. Тези материали помагат да се разбере как изкуствени обекти могат да придобият поведение, характерно за живите организми.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Bottom-up chemical construction of photosynthetic cyanobacteria mimics and their controlled assembly into autonomous and self-regulating biofilm-like materials for hydrogen production

This project dealt with the bottom-up synthetic construction of proto-cyanobacteria capable of both H2 production and negative phototaxis, by combining in a synergistic manner inorganic chemistry and supramolecular chemistry. The result was a protocellular material comprising: (i) a membrane composed of a mixture of polymers and a photoactive perovskite oxide, (ii) a coacervate sub-shell and (iii) an aqueous lumen. Irradiation of these proto-cyanobacteria using blue light (405 nm) caused the excitation of the La0.85Fe0.9Cu0.1O3-Pt perovskite and enabled overall water splitting and the subsequent production of H2 and O2. The evolution of gases from the membrane caused the movement of the proto-cyanobacteria away from the light source, thereby endowing our protocell with negative phototaxis capabilities. Overall, this project contributed to closing the gap between living and non-living entities, and moved forward the boundary of how synthetic materials can be designed to behave like living entities.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Broad interest is devoted nowadays to filling the breach between biology and chemistry in order to comprehend the frontier between living and non-living systems. In this context, protocells are autonomous and self-sustained entities fabricated from scratch, which may exhibit one or more characteristics of actual cells. This project aims at synthesizing cyanobacteria mimics capable of producing H2 and formaldehyde from visible light, water, and methanol. The active material for photosynthesis shall be a semiconducting heterojunction based on BiVO4 and Rh-doped SrTiO3-Pt for Z-scheme photocatalysis. The photocatalyst shall be contained within functional protein-polymer protocell membranes referred to as proteinosomes. These photosynthetic protocells will then be chemically programmed to self-assemble into the first autonomous and photosynthetic biofilm-like material (BFM). The careful three-dimensional design of the BFM, consisting in a combination of mechano-passive, mechano-active and photocatalytic layers of specialized proteinosomes, will allow an emergent and unprecedented photo-mechano-chemical transduction. Therefore, the BFM will be able of an autonomous and self-regulating behavior out of equilibrium. This proposal pushes forward the borders of bottom-up synthetic biology via a nice interdisciplinary interaction with semiconductor photochemistry. Furthermore, an alternative and sustainable route to the production of green fuels is provided, which brings an original solution to the current planetary energetic crisis.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITA DEGLI STUDI DI TRIESTE · TriesteКоординаторИталия