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Stimuli-Responsive Mechanically Interlocked Peptide Rotaxanes for Biomaterials a...

Stimuli-Responsive Mechanically Interlocked Peptide Rotaxanes for Biomaterials and Biosensing Mechanically interlocked molecules (MIMs) feature mechanical bonds, which link multiple distinct components together allowing free movement between them without dissociation. This makes MIMs perfect candidates for artificial molec... ver más

31/03/2026

KTH

207K€

Presupuesto del proyecto: 207K€

Líder del proyecto

KUNGLIGA TEKNISKA HOEGSKOLAN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-03-05

HORIZON-MSCA-2023-PF-01-01: MSCA Postdoctoral Fellowships 2023 ExpectedOutcome:Project results are expected to contribute to the following outcomes:

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1 Participantes

KTH

206.89K€ | Lider

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Duración del proyecto: 24 meses Fecha Inicio: 2024-03-05
Fecha Fin: 2026-03-31

Líder del proyecto

KUNGLIGA TEKNISKA HOEGSKOLAN No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 207K€

Descripción del proyecto Mechanically interlocked molecules (MIMs) feature mechanical bonds, which link multiple distinct components together allowing free movement between them without dissociation. This makes MIMs perfect candidates for artificial molecular machines, and earned them the Nobel Prize in Chemistry 2016. Over the last 30 years, MIMs have been applied in diverse areas from switchable catalysis to smart materials. However, they have so far only found limited use in biomedicine, due to the often lengthy synthesis and poor solubility in biological media. Directly addressing these challenges, we will use Nature’s own building blocks (i.e. peptides) to construct stimuli-responsive MIMs for use in bioapplications. Rotaxanes are a class of MIM resembling dumbbells, with a macrocyclic ring encircling the axle. We will use bioactive peptides as the rotaxane axle (making them intrinsically biocompatible MIMs) whose bioactivity will be initially silenced via obstruction of the encircled stimuli-responsive macrocycle, which acts as protective armour and stabilises the peptide. Upon application of a stimulus (e.g. light irradiation), self-immolative cleavage of the macrocycle occurs, liberating the free peptide. Hence, light acts as a stimulus to turn-on the bioactive response of the peptide on-demand. We will use this to design advanced biosensing systems for stimuli-responsive MMP2 cleavage of the peptide sequence PLGLAG. Further, we will develop beyond state-of-the-art photopatterning methods for cell adhesion, using the integrin-binding RGDS peptide sequence as our rotaxane axle. Using the high spatiotemporal control of light, we can turn on cell-adhesion where desired via self-immolation of the macrocycle using light irradiation. This action represents a precise, high-resolution method for the photopatterning of cell-adhesive biomaterials, a crucial first step for the use of peptide-coated biomaterials in therapeutics e.g. transplants, skin-grafts, and drug delivery platforms.

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