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Bioderived, chiral ...
Bioderived, chiral and stable 1-dimensional light-responsive nanostructures : Interconversion between tubules and twisted ribbons
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- Santilli, Andrea (author)
- Sapienza University of Rome
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- Lapi, Andrea (author)
- Sapienza University of Rome
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- Cautela, Jacopo (author)
- Sapienza University of Rome
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- D'Abramo, Marco (author)
- Sapienza University of Rome
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- Giuseppe Chen, Cheng (author)
- Sapienza University of Rome
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- Del Giudice, Alessandra (author)
- Sapienza University of Rome
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- Sennato, Simona (author)
- Sapienza University of Rome
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- Belić, Domagoj (author)
- Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,University of Osijek
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- Hugo Soto Tellini, Victor (author)
- University of Costa Rica
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- Schillén, Karin (author)
- Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- di Gregorio, Maria Chiara (author)
- Weizmann Institute of Science Israel
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- Galantini, Luciano (author)
- Sapienza University of Rome
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English 12 s.
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In: Journal of Colloid and Interface Science. - : Elsevier BV. - 0021-9797. ; 623, s. 723-734
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http://dx.doi.org/10...
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Abstract
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- HYPOTHESIS: Self-assembling molecular structures responding to light stimulus are appealing for applications as sensing and drug delivery. Supramolecular nanotubes have a relevant potential in nanotechnology as they can be used to encapsulate different loads like drugs, biological macromolecules, and nanomaterials. In addition, they are suitable elements for novel supracolloidal materials. Structural responses of supramolecular nanotubes to non-invasive stimuli are very much desired to enable controlled release of the encapsulated guests and to provide these recently developed new materials with an external trigger. Here, we describe the formation of well-defined, single wall tubules that interconvert into twisted ribbons upon UV-light exposure in aqueous environment. The structures are provided by self-assembly of an azobenzene substituted cholic acid, a biological surfactant belonging to the family of bile acids. The azobenzene group allows for the light responsiveness of the molecular packing. Concurrently the steroidal moieties assure both chiral features and extensive hydrophobic interactions for time and temperature resistant aggregates.EXPERIMENTS: The molecular packing interconversion was followed by circular dichroism. Microscopy, small angle X-ray scattering and light scattering measurements demonstrated the drastic morphological variation upon irradiation. A model of the molecular arrangement within the tubular walls was suggested based on the circular dichroism spectra simulation.FINDINGS: Innovatively, the molecular design reported in our work allows for encoding in the same light responsive system multiple desirable features (e.g. bio-origin, temperature resistance and chirality of the aggregates). Such combination of properties, never reported before for a single molecule, might be relevant for the realization of robust, stimuli-responsive bio-vectors.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
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Santilli, Andrea
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Lapi, Andrea
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Cautela, Jacopo
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D'Abramo, Marco
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Giuseppe Chen, C ...
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Del Giudice, Ale ...
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show more...
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Sennato, Simona
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Belić, Domagoj
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Hugo Soto Tellin ...
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Schillén, Karin
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di Gregorio, Mar ...
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Galantini, Lucia ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Journal of Collo ...
- By the university
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Lund University