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Updated: Jun 21, 2025

Manufacture and Drug Delivery Applications of Silk Nanoparticles
Published on: October 8, 2016
A Patent Analysis on Nano Drug Delivery Systems
Dengyu Li1, Wen Luo1,2, Shengwei Yin3
1Information Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
Nano drug delivery systems are rapidly advancing, with significant patent growth observed over two decades. While China leads in patent numbers, the US shows more advanced, highly cited technologies in this field.
Area of Science:
- Nanotechnology and Materials Science
- Pharmaceutical Sciences
- Biomedical Engineering
Background:
- Nano drug delivery systems are crucial for advanced drug delivery and controlled release.
- Recent decades have seen substantial development driven by novel nanomaterials and nanotechnologies.
Purpose of the Study:
- To analyze technological advancements in nano drug delivery systems.
- Utilize patent analysis to understand the evolution and trends in the field.
Main Methods:
- Patent analysis of 3708 documents.
- Data retrieved from the Incopat patent database.
Main Results:
- Rapid growth in nano drug delivery system patents over the last two decades.
- China and the US are major contributors to patent filings.
- Lipid-based nanomaterials dominate highly cited patents, indicating mature technology, while inorganic nanomaterials show increasing attention.
- The US leads significantly in highly cited patents (250).
Conclusions:
- Nano drug delivery systems remain a dynamic research area.
- China's patent surge post-2016 is notable, but its technologies lag behind developed nations in citation impact.
- Future research may focus on inorganic nanomaterials and improving lipid-based and polymer-based systems for nanomedicine.
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