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Updated: May 25, 2026
15:33
Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
Published on: October 29, 2013
29.7K
Lipidated peptide nanostructures for stabilizing hydrogels with sustained skincare bioactivity
Yingshuo Xiong1, Mengqi Wu1, Xinyue Hou1
1State Key Laboratory of Heavy Oil Processing and Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao Economic Development Zone, Qingdao 266580, PR China.
Summary
This study developed a novel bioactive ingredient reservoir using palmitoyl peptides (Pal-KVK) to improve skin penetration and stability. The resulting hydrogel mask offers sustained release for enhanced anti-wrinkle and moisturizing skincare effects.
Area of Science:
- Biomaterials Science
- Cosmetic Science
- Nanotechnology
Background:
- Bioactive peptides are valuable cosmetic ingredients due to biocompatibility and skincare benefits.
- Limited skin penetration and instability hinder the widespread application of bioactive peptides.
Purpose of the Study:
- To create a palmitoyl peptide-based 'bioactive ingredient reservoir' for enhanced skin penetration and stability.
- To investigate the self-assembly behavior of Pal-KVK and its sustained release capabilities.
- To develop and evaluate a Pal-KVK/gelatin composite hydrogel mask for long-lasting skincare.
Main Methods:
- Synthesis of palmitoyl peptide (Pal-KVK) and characterization of its self-assembly into helical superstructures.
- Preparation of a composite hydrogel mask by embedding Pal-KVK aggregates within a gelatin matrix.
- In vitro transdermal evaluation, cellular toxicity assays, and in vivo consumer dermatological assessments.
Main Results:
- Pal-KVK molecules self-assembled into helical ribbons and hydrogel structures, driven by hydrophobic interactions, electrostatic forces, and hydrogen bonding.
- The self-assembled structures facilitated sustained release of active Pal-KVK.
- The Pal-KVK/gelatin composite hydrogel mask demonstrated excellent skin penetration, biocompatibility, anti-wrinkle, and moisturizing effects.
Conclusions:
- A novel bioactive ingredient reservoir system based on Pal-KVK self-assembly was successfully developed.
- The composite hydrogel mask provides an effective method for sustained delivery of bioactive peptides.
- This advanced skincare approach offers significant anti-wrinkle and moisturizing benefits with enhanced biocompatibility.
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