Organic-Inorganic Nanoflowers Synthesis Without Added Copper Ions
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Solution Overview
Problem
Existing methods for producing nanoflowers require added copper ions and are limited to inorganic compositions, whereas the development of organic-inorganic nanoflowers is desired, particularly those functionalized with enzymes for specific applications.
Innovation Solution
A method involving bacteria exposure to a solid copper substrate in an aqueous phosphate solution with chloride ions, which allows for the growth of organic-inorganic nanoflowers without the need for added copper ions, using a copper-tin alloy substrate with specific compositions and surface roughness, and incorporating enzymes for functionalization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If added copper ions are used in the synthesis method, then nanoflowers can be formed, but the composition is limited to inorganic materials
Solution Approach 1:
The copper substrate serves itself as the copper ion source, eliminating the need for external copper ion addition. The substrate provides copper ions through controlled release during the synthesis process, enabling both organic-inorganic hybrid formation and enzyme incorporation without requiring separate copper salt reagents.
Solution Approach 2:
The invention creates organic-inorganic hybrid nanoflowers by combining organic enzymes with inorganic copper phosphate structures. The copper substrate interacts with phosphate buffer and organic enzymes simultaneously, forming a composite material system that integrates both organic and inorganic components into a unified nanoflower structure.
2Ease of manufacture
If a simple copper substrate is used, then the synthesis process is simple, but the nanoflower formation and enzyme incorporation are limited
Solution Approach 1:
The invention modifies the substrate parameters by using copper alloys with specific compositions (e.g., copper-tin-phosphor bronze) and controlled surface roughness (Ra values). These parameter changes enhance the substrate's ability to nucleate nanoflowers and incorporate enzymes while maintaining a relatively simple one-step synthesis process without complex multi-stage procedures.
3Reliability
If phosphate buffer is used to maintain copper ion availability, then nanoflower formation is enabled, but chloride ions are also required to prevent copper phosphate precipitation
Solution Approach 1:
The copper substrate acts as an intermediary that mediates between phosphate buffer and enzyme incorporation. Instead of requiring chloride ions to prevent precipitation, the solid copper substrate provides a controlled interface where copper ions are released gradually, allowing phosphate to be incorporated into the nanoflower structure without causing unwanted precipitation, thus simplifying the solution composition.
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
This method enables the production of nanoflowers with embedded bacteria and enzymes, demonstrating enhanced biocidal activity against bacteria and potential for rapid detection and nucleation, showcasing improved biocidal efficacy and functionalization capabilities.
Implementation Method 1
exposing bacteria to a solid substrate comprising copper in the presence of an aqueous solution comprising phosphate ions
Implementation Method 2
aqueous solution comprising phosphate ions
Implementation Method 3
the chloride component of PBS plays the role of forming soluble Cu2+ chloride complexes
Data Source
AI summary
Organic-inorganic nanoflowers, methods of synthesis, and uses of the nanoflowers are described. It has been found that organic-inorganic nanoflowers can be grown in the presence of a solid substrate containing copper without the requirement for added copper ion. The method includes exposing bacteria to a solid substrate containing copper in the presence of an aqueous solution that contains phosphate ions. The aqueous solution can additionally contain chloride ions, similar to that of a phosphate-buffered saline composition. The solid substrate can be an alloy of copper and tin, and the substrate can have phosphorus incorporated into it.