Dipeptide and tripeptide conjugates as low-molecular-weight hydrogelators

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Biomaterials Engineering

Background:

• Dipeptide and tripeptide conjugates are increasingly recognized as effective low molecular weight gelators (LMWG).
• Their widespread interest stems from material accessibility, cost-effectiveness, and a proven ability to form hydrogels.
• The properties of these gelators can be readily tuned by altering amino acid sequences or aromatic end groups.

Purpose of the Study:

• To critically review the existing literature on dipeptide and tripeptide conjugate hydrogels.
• To analyze the influence of gelator selection and assembly methodologies on hydrogelation outcomes.
• To discuss the diverse applications of these self-assembled hydrogel systems.

Main Methods:

• Comprehensive literature review of studies focusing on dipeptide and tripeptide conjugate hydrogels.
• Analysis of reported gelator structures, assembly mechanisms, and gelation conditions.
• Synthesis of findings to correlate gelator properties and assembly methods with hydrogel performance.

Main Results:

• The assembly processes for a subset of these gelators are well-understood, providing insights into their behavior.
• Modifications in amino acid composition and aromatic end groups significantly influence gelator properties and hydrogel formation.
• The choice of gelator and assembly method critically determines the success and characteristics of the resulting hydrogel.

Conclusions:

• Dipeptide and tripeptide conjugates represent versatile building blocks for designing functional hydrogels.
• Understanding the structure-assembly-property relationships is key to optimizing hydrogel design.
• These hydrogels hold significant promise for various applications, warranting further investigation.