[Progress on the application of polypeptide hydrogels in drug sustained/controlled release]
1Deapartment of Central Laboratory, Tianjin Stomatological Hospital, School of Medicine, Nankai University & Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin300041, China.
Summary
Peptide hydrogels offer biocompatible platforms for sustained drug delivery, aiding tissue regeneration. This review details their design, construction, and mechanisms for advanced therapeutic applications.
Area of Science:
- Biomedical Engineering
- Materials Science
- Drug Delivery Systems
Background:
- Peptide hydrogels are increasingly recognized for their biocompatibility, biodegradability, and low cytotoxicity.
- They effectively mimic the extracellular matrix, enabling drug encapsulation and controlled release for tissue regeneration.
- Their potential in advanced drug delivery systems is a significant area of research.
Purpose of the Study:
- To review the research progress on peptide hydrogels for sustained and controlled drug release.
- To summarize key aspects including peptide selection, concentration optimization, and hydrogel fabrication.
- To elucidate the mechanisms of drug release and applicable detection methods.
Main Methods:
- Literature review of recent advancements in peptide hydrogel research.
- Analysis of peptide design principles and hydrogel construction techniques.
- Summary of drug release mechanisms and detection methodologies.
Main Results:
- Peptide hydrogels demonstrate significant potential for sustained and controlled drug release.
- Optimization of peptide concentration and hydrogel structure are crucial for efficacy.
- Various detection methods are available for assessing drug release kinetics.
Conclusions:
- Peptide hydrogels are promising for drug delivery applications, particularly in tissue regeneration.
- Further research into their design and application can unlock new therapeutic possibilities.
- This review provides a comprehensive overview for future investigations in peptide hydrogel-based drug delivery.
Related Concept Videos
01:19Modified-Release Drug Delivery Systems: Rate-Programmed II
Rate-programmed drug delivery systems release drugs in a controlled manner to maintain therapeutic levels. Three main designs include reservoir, matrix, and hybrid systems.Reservoir systems consist of a drug core enclosed within a membrane that controls drug release. In non-swelling reservoir systems, polymers like ethyl cellulose or polymethacrylates are used. These do not hydrate in aqueous media and control release through membrane thickness, porosity, or insolubility. This type includes...
01:23Modified-Release Drug Delivery Systems: Classification
Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
01:22Modified-Release Drug Delivery Systems: Rate-Programmed I
Rate-programmed drug delivery systems (DDS) are designed to release drugs at specific, controlled rates to maintain consistent therapeutic levels. These systems are categorized based on their release mechanisms, including dissolution-controlled DDS, diffusion-controlled DDS, and combined dissolution-diffusion-controlled DDS.In dissolution-controlled DDS, the release rate depends on the slow dissolution of the drug itself or the surrounding matrix. Drugs with inherently slow dissolution rates,...
01:30Modified-Release Drug Delivery Systems: Stimuli-Activated
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
01:26Oral Drug Delivery Systems: Continuous-Release Systems
Continuous-release drug delivery systems offer a strategic approach to maintaining therapeutic drug levels over extended periods following oral administration. By modulating the release rate of active pharmaceutical ingredients, these systems minimize fluctuations in plasma concentrations, which enhances clinical efficacy and reduces the need for frequent dosing. Such characteristics make them particularly advantageous in managing chronic diseases where patient adherence and stable drug...