Core-Shell Nanocomposite Particle for Targeted Cancer Phototherapy
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Solution Overview
Problem
Current cancer treatments, such as surgery, radiation therapy, chemotherapy, immunotherapy, and hormone therapy, are limited by metastasis, side effects, resistance, and specificity, necessitating a more effective method for cancer treatment.
Innovation Solution
A nanocomposite particle comprising a core-shell-shell nanoparticle with a phosphor core, inner and outer shell layers, a cationic polymer, and an encapsulated nanorod within a mesoporous scaffold, which is administered and irradiated with specific light wavelengths to induce cytotoxic effects on tumors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional cancer treatments (surgery, radiation therapy, chemotherapy) are used, then cancer cells can be treated, but normal tissues are damaged causing severe side effects
Solution Approach 1:
The treatment system is segmented into distinct functional components: core-shell-shell nanoparticles for targeted delivery, nanorods for photothermal conversion, and lipid layers for biocompatibility. This segmentation allows each component to perform its specific function while minimizing damage to normal tissues through precise tumor targeting.
Solution Approach 2:
The core-shell-shell nanoparticle acts as an intermediary carrier that delivers the nanorod therapy directly to tumor cells. The lipid layer serves as another intermediary that enhances biocompatibility and facilitates controlled release, thereby protecting normal tissues while maintaining treatment effectiveness.
2Reliability
If surgery is used to remove cancerous tissues, then obvious tumors can be removed, but metastatic cancer cells and small cancers cannot be effectively treated
Solution Approach 1:
The nanocomposite particle system provides universal applicability across different cancer stages and types. The passive targeting mechanism (EPR effect) and active targeting capabilities enable the system to effectively treat both small tumors and metastatic cells that cannot be surgically removed, complementing surgical therapy.
Solution Approach 2:
The system exploits parameter changes at the nanoscale level, including size-dependent cellular uptake mechanisms and surface property modifications. These parameter changes enable the nanoparticles to penetrate tumor tissues and target metastatic cells differently from surgical approaches, expanding treatment versatility.
3Ease of manufacture
If a simple nanoparticle structure is used, then manufacturing is easier, but therapeutic efficacy is insufficient
Solution Approach 1:
The nested core-shell-shell structure allows systematic assembly where the nanorod is encapsulated within the mesoporous scaffold, which is in turn integrated with the core-shell-shell nanoparticle. This nesting approach maintains manufacturing feasibility through stepwise assembly while achieving complex multifunctional therapeutic capabilities.
Solution Approach 2:
The system employs composite materials combining inorganic nanorods for photothermal conversion, phosphor materials for light emission, and organic lipid layers for biocompatibility. This composite approach enhances therapeutic efficacy by integrating multiple functional materials while maintaining a structured assembly process suitable for manufacturing.
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 nanocomposite particle effectively targets and treats various cancers with minimal side effects by converting light into thermal energy and producing reactive oxygen species, enhancing therapeutic efficacy through photothermal and photodynamic therapy.
Implementation Method 1
converting light into thermal energy
Implementation Method 2
producing reactive oxygen species
Implementation Method 3
linked with the core-shell-shell nanoparticle via an electrostatic interaction between the cationic polymer and the mesoporous scaffold
Data Source
AI summary
Disclosed herein is a nanocomposite particle comprising a core-shell-shell nanoparticle, an encapsulated nanorod linked with the core-shell-shell nanoparticle, and a lipid layer encapsulating the core-shell-shell nanoparticle and the encapsulated nanorod. The core-shell nanoparticle comprises a phosphor core, an inner shell layer, an outer shell layer, and a cationic polymer. The encapsulated nanorod comprises a nanorod, and a mesoporous scaffold. According to embodiments of the present disclosure, the encapsulated nanorod is linked with the core-shell-shell nanoparticle via an electrostatic interaction between the cationic polymer and the mesoporous scaffold. Also disclosed are the uses of the nanocomposite in treating diseases, for example, cancers.