On the mechanical properties of N-functionalised dipeptide gels

Ana M. Fuentes-Caparrós, Kate McAulay, Sarah E. Rogers, Robert M. Dalgliesh , Dave J. Adams

Research output: Contribution to journalArticle

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Abstract

The properties of a hydrogel are controlled by the underlying network that immobilizes the solvent. For gels formed by the self-assembly of a small molecule, it is common to show the primary fibres that entangle to form the network by microscopy, but it is difficult to access information about the network. One approach to understand the network is to examine the effect of the concentration on the rheological properties, such that G′∝ cx, where G′ is the storage modulus and c is the concentration. A number of reports link the exponent x to a specific type of network. Here, we discuss a small library of gels formed using functionalized dipeptides, and describe the underlying networks of these gels, using microscopy, small angle scattering and rheology. We show that apparently different networks can give very similar values of x.
Original languageEnglish
Article number3855
JournalMolecules
Volume24
Issue number21
DOIs
Publication statusPublished - 25 Oct 2019

Fingerprint

gels
mechanical properties
microscopy
rheology
self assembly
exponents
fibers
scattering
molecules

Keywords

  • gel
  • hydrogel
  • dipeptide
  • rheology
  • SANS
  • fibre
  • network

Cite this

Fuentes-Caparrós, A. M., McAulay, K., Rogers, S. E., Dalgliesh , R. M., & Adams, D. J. (2019). On the mechanical properties of N-functionalised dipeptide gels. Molecules, 24(21), [3855]. https://doi.org/10.3390/molecules24213855
Fuentes-Caparrós, Ana M. ; McAulay, Kate ; Rogers, Sarah E. ; Dalgliesh , Robert M. ; Adams, Dave J. / On the mechanical properties of N-functionalised dipeptide gels. In: Molecules. 2019 ; Vol. 24, No. 21.
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Fuentes-Caparrós, AM, McAulay, K, Rogers, SE, Dalgliesh , RM & Adams, DJ 2019, 'On the mechanical properties of N-functionalised dipeptide gels', Molecules, vol. 24, no. 21, 3855. https://doi.org/10.3390/molecules24213855

On the mechanical properties of N-functionalised dipeptide gels. / Fuentes-Caparrós, Ana M.; McAulay, Kate; Rogers, Sarah E.; Dalgliesh , Robert M.; Adams, Dave J.

In: Molecules, Vol. 24, No. 21, 3855, 25.10.2019.

Research output: Contribution to journalArticle

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T1 - On the mechanical properties of N-functionalised dipeptide gels

AU - Fuentes-Caparrós, Ana M.

AU - McAulay, Kate

AU - Rogers, Sarah E.

AU - Dalgliesh , Robert M.

AU - Adams, Dave J.

N1 - Acceptance from webpage OA article

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N2 - The properties of a hydrogel are controlled by the underlying network that immobilizes the solvent. For gels formed by the self-assembly of a small molecule, it is common to show the primary fibres that entangle to form the network by microscopy, but it is difficult to access information about the network. One approach to understand the network is to examine the effect of the concentration on the rheological properties, such that G′∝ cx, where G′ is the storage modulus and c is the concentration. A number of reports link the exponent x to a specific type of network. Here, we discuss a small library of gels formed using functionalized dipeptides, and describe the underlying networks of these gels, using microscopy, small angle scattering and rheology. We show that apparently different networks can give very similar values of x.

AB - The properties of a hydrogel are controlled by the underlying network that immobilizes the solvent. For gels formed by the self-assembly of a small molecule, it is common to show the primary fibres that entangle to form the network by microscopy, but it is difficult to access information about the network. One approach to understand the network is to examine the effect of the concentration on the rheological properties, such that G′∝ cx, where G′ is the storage modulus and c is the concentration. A number of reports link the exponent x to a specific type of network. Here, we discuss a small library of gels formed using functionalized dipeptides, and describe the underlying networks of these gels, using microscopy, small angle scattering and rheology. We show that apparently different networks can give very similar values of x.

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Fuentes-Caparrós AM, McAulay K, Rogers SE, Dalgliesh RM, Adams DJ. On the mechanical properties of N-functionalised dipeptide gels. Molecules. 2019 Oct 25;24(21). 3855. https://doi.org/10.3390/molecules24213855