Order from Disorder with Intrinsically Disordered Peptide Amphiphiles

Guy Jacoby; Merav Segal Asher; Tamara Ehm; Inbal Abutbul Ionita; Hila Shinar; Salome Azoulay-Ginsburg; Ido Zemach; Gil Koren; Dganit Danino; Michael M. Kozlov; Roey J. Amir; Roy Beck

doi:10.1021/jacs.1c06133

Order from Disorder with Intrinsically Disordered Peptide Amphiphiles

Guy Jacoby, Merav Segal Asher, Tamara Ehm, Inbal Abutbul Ionita, Hila Shinar, Salome Azoulay-Ginsburg, Ido Zemach, Gil Koren, Dganit Danino, Michael M. Kozlov, Roey J. Amir^*, Roy Beck^*

^*Corresponding author for this work

Biotechnology and Food Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Amphiphilic molecules and their self-assembled structures have long been the target of extensive research due to their potential applications in fields ranging from materials design to biomedical and cosmetic applications. Increasing demands for functional complexity have been met with challenges in biochemical engineering, driving researchers to innovate in the design of new amphiphiles. An emerging class of molecules, namely, peptide amphiphiles, combines key advantages and circumvents some of the disadvantages of conventional phospholipids and block copolymers. Herein, we present new peptide amphiphiles composed of an intrinsically disordered peptide conjugated to two variants of hydrophobic dendritic domains. These molecules, termed intrinsically disordered peptide amphiphiles (IDPA), exhibit a sharp pH-induced micellar phase-transition from low-dispersity spheres to extremely elongated worm-like micelles. We present an experimental characterization of the transition and propose a theoretical model to describe the pH-response. We also present the potential of the shape transition to serve as a mechanism for the design of a cargo hold-and-release application. Such amphiphilic systems demonstrate the power of tailoring the interactions between disordered peptides for various stimuli-responsive biomedical applications.

Original language	English
Pages (from-to)	11879-11888
Number of pages	10
Journal	Journal of the American Chemical Society
Volume	143
Issue number	30
DOIs	https://doi.org/10.1021/jacs.1c06133
State	Published - 4 Aug 2021

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title = "Order from Disorder with Intrinsically Disordered Peptide Amphiphiles",

abstract = "Amphiphilic molecules and their self-assembled structures have long been the target of extensive research due to their potential applications in fields ranging from materials design to biomedical and cosmetic applications. Increasing demands for functional complexity have been met with challenges in biochemical engineering, driving researchers to innovate in the design of new amphiphiles. An emerging class of molecules, namely, peptide amphiphiles, combines key advantages and circumvents some of the disadvantages of conventional phospholipids and block copolymers. Herein, we present new peptide amphiphiles composed of an intrinsically disordered peptide conjugated to two variants of hydrophobic dendritic domains. These molecules, termed intrinsically disordered peptide amphiphiles (IDPA), exhibit a sharp pH-induced micellar phase-transition from low-dispersity spheres to extremely elongated worm-like micelles. We present an experimental characterization of the transition and propose a theoretical model to describe the pH-response. We also present the potential of the shape transition to serve as a mechanism for the design of a cargo hold-and-release application. Such amphiphilic systems demonstrate the power of tailoring the interactions between disordered peptides for various stimuli-responsive biomedical applications.",

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doi = "10.1021/jacs.1c06133",

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AU - Jacoby, Guy

AU - Segal Asher, Merav

AU - Ehm, Tamara

AU - Abutbul Ionita, Inbal

AU - Shinar, Hila

AU - Azoulay-Ginsburg, Salome

AU - Zemach, Ido

AU - Koren, Gil

AU - Danino, Dganit

AU - Kozlov, Michael M.

AU - Amir, Roey J.

AU - Beck, Roy

PY - 2021/8/4

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N2 - Amphiphilic molecules and their self-assembled structures have long been the target of extensive research due to their potential applications in fields ranging from materials design to biomedical and cosmetic applications. Increasing demands for functional complexity have been met with challenges in biochemical engineering, driving researchers to innovate in the design of new amphiphiles. An emerging class of molecules, namely, peptide amphiphiles, combines key advantages and circumvents some of the disadvantages of conventional phospholipids and block copolymers. Herein, we present new peptide amphiphiles composed of an intrinsically disordered peptide conjugated to two variants of hydrophobic dendritic domains. These molecules, termed intrinsically disordered peptide amphiphiles (IDPA), exhibit a sharp pH-induced micellar phase-transition from low-dispersity spheres to extremely elongated worm-like micelles. We present an experimental characterization of the transition and propose a theoretical model to describe the pH-response. We also present the potential of the shape transition to serve as a mechanism for the design of a cargo hold-and-release application. Such amphiphilic systems demonstrate the power of tailoring the interactions between disordered peptides for various stimuli-responsive biomedical applications.

AB - Amphiphilic molecules and their self-assembled structures have long been the target of extensive research due to their potential applications in fields ranging from materials design to biomedical and cosmetic applications. Increasing demands for functional complexity have been met with challenges in biochemical engineering, driving researchers to innovate in the design of new amphiphiles. An emerging class of molecules, namely, peptide amphiphiles, combines key advantages and circumvents some of the disadvantages of conventional phospholipids and block copolymers. Herein, we present new peptide amphiphiles composed of an intrinsically disordered peptide conjugated to two variants of hydrophobic dendritic domains. These molecules, termed intrinsically disordered peptide amphiphiles (IDPA), exhibit a sharp pH-induced micellar phase-transition from low-dispersity spheres to extremely elongated worm-like micelles. We present an experimental characterization of the transition and propose a theoretical model to describe the pH-response. We also present the potential of the shape transition to serve as a mechanism for the design of a cargo hold-and-release application. Such amphiphilic systems demonstrate the power of tailoring the interactions between disordered peptides for various stimuli-responsive biomedical applications.

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Order from Disorder with Intrinsically Disordered Peptide Amphiphiles

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