Related Experiment Video
Updated: May 17, 2026
04:53
Electric Cell-Substrate Sensing for Real-Time Evaluation of Metal-Organic Framework Toxicological Profiles
Published on: May 26, 2023
Metal-organic frameworks as potential drug delivery systems
Chun-Yi Sun1, Chao Qin, Xin-Long Wang
1Northeast Normal University, Institute of Functional Materials Chemistry, Department of Chemistry, Key Laboratory of Polyoxometalate Science of Ministry of Education, Changchun, Jilin, 130024, China. zmsu@nenu.edu.cn
Expert Opinion on Drug Delivery
|November 13, 2012
Summary
Metal-organic frameworks (MOFs) offer unique advantages for drug delivery due to their tunable properties. Further research is needed to establish their clinical safety and efficacy for therapeutic agent delivery.
Area of Science:
- Materials Science
- Nanotechnology
- Biomedical Engineering
Background:
- Metal-organic frameworks (MOFs) are hybrid porous solids with large surface areas and tunable properties.
- Their unique characteristics offer significant potential for adsorption and release of therapeutic agents.
Purpose of the Study:
- To review MOFs as a novel drug delivery system.
- To discuss MOF requirements for biomedical applications and methods to enhance drug delivery efficiency.
Main Methods:
- Review of existing literature on MOFs for drug delivery.
- Analysis of MOF properties relevant to biomedical applications.
- Summary of encapsulation and delivery efficiency enhancement approaches.
Main Results:
- MOFs demonstrate efficient delivery of various therapeutic agents.
- Key requirements for MOFs in biomedical applications include toxicological compatibility, stability, and appropriate particle size.
- Various methods can enhance drug encapsulation and delivery efficiency.
Conclusions:
- MOFs show promise for efficient drug delivery, but are in early stages of development.
- Further research is crucial, focusing on in vivo toxicity, degradation, surface modification, and pharmacokinetic studies for clinical translation.
Related Concept Videos
01:27Drug Delivery Systems: Different Types
Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...
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...
01:24Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
01:23Oral Drug Delivery Systems: Introduction
Oral drug delivery is the most common route of administration due to its convenience, cost-effectiveness, and high patient compliance. It enables precise formulation to ensure proper drug dosage and bioavailability. The development of oral dosage forms considers drug properties such as solubility, stability, and absorption to optimize therapeutic efficacy.Tablets, capsules, liquids, and chewable formulations enhance drug stability, mask undesirable tastes, and improve patient experience.
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...
01:19Modified-Release Drug Delivery Systems: Overview
Modified-release dosage forms are designed to address the limitations of drugs with short biological half-lives. These forms maintain stable therapeutic drug concentrations over extended periods, reducing the need for frequent dosing. A consistent drug level helps minimize peak-trough fluctuations, which can reduce adverse effects, lower the risk of drug resistance, and improve overall treatment effectiveness.One common type of modified-release form is the extended-release (ER) formulation. ER...