Polymeric Nanowires for Targeted Bioactive Delivery
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Solution Overview
Problem
The widespread use of asymmetric nanostructures in bioengineering applications is limited due to their short residence time in vivo and lack of targeted delivery of bioactive compounds.
Innovation Solution
Development of compositions comprising individual polymeric nanowires with a bioactive compound, either contained within or bonded to their surface, which can be formulated for targeted delivery and sustained release, allowing for high localization in specific tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If asymmetric nanostructures are used in bioengineering applications, then higher surface area and greater residence time are achieved, but widespread use is still limited due to short residence time in vivo and lack of targeted delivery
Solution Approach 1:
The patent employs porous polymeric nanowires with controlled pore sizes (50-500 nm) that enable selective uptake of bioactive compounds through transcytosis while maintaining structural integrity. The porous structure allows sustained release of encapsulated compounds over extended periods, directly addressing the residence time limitation while the controlled porosity ensures reliable targeted delivery to specific tissues.
Solution Approach 2:
The patent utilizes a core-shell structure where bioactive compounds are encapsulated within the porous polymeric nanowire structure. The nanowire itself serves as a delivery vehicle that can be functionalized with targeting moieties on its surface, creating a nested system that combines protection, sustained release, and targeted delivery capabilities.
2Reliability
If polymeric nanowires are designed for targeted delivery, then localization in target tissue is improved, but manufacturing complexity increases
Solution Approach 1:
The patent incorporates targeting moieties such as antibodies, peptides, or aptamers onto the surface of polymeric nanowires during the manufacturing process. This preliminary functionalization allows the nanowires to be pre-configured for specific tissue targeting before administration, simplifying the overall system by combining delivery and targeting functions in a single manufactured product rather than requiring complex in vivo modification.
Solution Approach 2:
The patent controls key parameters including pore size (50-500 nm), nanowire diameter (50-500 nm), and polymer molecular weight (10-100 kDa) to optimize both targeted delivery and manufacturing feasibility. By establishing specific parameter ranges, the patent transforms a potentially complex manufacturing problem into a controlled process with defined outcomes, improving localization while maintaining manufacturability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The polymeric nanowires achieve significant localization in target tissues, providing sustained release of bioactive compounds, thereby enhancing the efficacy of bioengineering applications.
Implementation Method 1
Individual polymeric nanowires are configured to release bioactive compound at a substantially zero-order release rate
Implementation Method 2
the bioactive compound is covalently bonded to the outer surface of the polymeric nanowire through a linker, such as an enzymatically cleavable linker, a hydrolysable linker
Data Source
AI summary
Aspects of the present disclosure include compositions having a plurality of individual polymeric nanowires. Individual polymeric nanowires according to embodiments include a bioactive compound. Methods for preparing and methods for administering the subject compositions of individual polymeric nanowires to a subject are also described. Kits having one or more components for practicing the subject methods are also provided.