Phosphorus-Based Material for Tumor Treatment via pH-Triggered Phosphate Release

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Solution Overview

Problem

Current tumor treatment methods, such as chemotherapy, often result in severe toxic and side effects on both cancer cells and normal cells, and have not effectively addressed issues like cancer recurrence and metastasis.

Innovation Solution

The use of phosphorus-based materials that can convert into phosphate ions in an acidic environment, specifically targeting tumor cells to inhibit their proliferation and induce death, while minimizing impact on normal cells.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional chemotherapeutics are used to treat tumors, then tumor cells can be killed, but severe toxic and side effects occur on normal cells and tissues

Engineering Contradiction:
Improvetumor treatment effectivenessVSAvoidtoxicity to normal cells
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by designing phosphorus-based materials that selectively respond to the acidic microenvironment of tumor cells. The material converts to phosphate ions specifically in the acidic conditions found in tumors, while remaining stable in the neutral pH of normal cells. This creates different properties in different locations - aggressive tumor-killing activity in acidic tumor environments, and biocompatibility in neutral normal cell environments - thereby resolving the contradiction between effective tumor treatment and reduced toxicity to normal cells.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent utilizes parameter changes by exploiting the pH difference between tumor and normal cells. The phosphorus-based material's conversion to phosphate ions is controlled by pH parameter changes - it activates only when the acidic environment of tumor cells triggers the conversion, while remaining inactive in the neutral pH environment of normal cells. This parameter-based selectivity enables effective tumor treatment without harming normal cells.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If conventional chemotherapeutics are used to treat tumors, then cancer cells can be targeted, but recurrence and metastasis remain unresolved

Engineering Contradiction:
Improvetumor treatment effectivenessVSAvoidcure completeness
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent converts the harmful acidic environment of tumor cells - which normally promotes tumor growth and metastasis - into a beneficial trigger for the therapeutic material's activation. The acidic pH that characterizes tumors and facilitates cancer progression is precisely the condition that activates the phosphorus-based material to kill tumor cells. This transforms the harmful tumor microenvironment into the activation signal for cure, addressing recurrence and metastasis by targeting the very conditions that enable cancer progression.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If phosphorus-based material is used to treat tumors, then tumor cell proliferation is inhibited and apoptosis is induced, but the mechanism of action requires acidic environment conversion

Engineering Contradiction:
Improvetumor cell killing efficiencyVSAvoidmechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies self-service by designing a phosphorus-based material that automatically activates itself in response to the acidic environment of tumor cells. The material doesn't require external activation or complex delivery systems - it simply converts to phosphate ions when exposed to the acidic pH of tumor cells, using the tumor's own acidic environment as the activation trigger. This self-activating mechanism simplifies the overall treatment system while maintaining high tumor cell killing efficiency.

Inventive Principle:
Principle #25Self-service

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 phosphorus-based material effectively inhibits tumor cell proliferation and induces apoptosis, with minimal effect on normal cells, thereby improving therapeutic outcomes for tumors with reduced toxicity.

Implementation Method 1

the phosphorus-based material is material which is convertible to produce phosphate ions in an acidic environment, and the phosphorus-based material can be converted by tumor cells phagocytosis to produce phosphate ions

Methodology Applied
Scientific EffectPhosphorus conversion to phosphate ions: Chemical Bonding

Data Source

PatentUS20250025497A1Use of phosphorus-based material in preparation of medicament for treating tumors
Publication Date: 2025.01.23 SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
  • US20250025497A1 patent drawing
  • US20250025497A1 patent drawing
  • US20250025497A1 patent drawing

AI summary

Use of phosphorus-based material in preparation of medicament for treating tumors. The phosphorus-based material is selected from a material which is convertible to produce phosphate ions in an acidic environment, and the phosphorus-based material can be converted by tumor cells phagocytosis to produce a large number of phosphate ions to change the intraceullar environment and extracellular environment, thereby inhibiting proliferation of tumor cells and inducing death of tumor cells. This process has no significant effect on normal cell activities. By applying the phosphorus-based material to the preparation of a medicament for treating tumor in a manner as mentioned above, the amplification and metastasis of tumor cells can be effectively inhibited, thereby the metastasis of the tumor cells and recurrence of the tumor can be prevented more effectively, improving the therapeutic effect of the tumor. The phosphorus-based material has little effect on normal cells and tissues in the course of treatment.