Silica-Supported Ionic Liquids for Cytostatic Removal
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Solution Overview
Problem
Current technologies are inadequate in efficiently removing cytostatic pharmaceuticals from aqueous samples, particularly urine, due to their non-selective nature and the production of toxic byproducts, posing environmental and health risks.
Innovation Solution
Development of silica-based materials functionalized with ammonium salts, specifically designed to selectively adsorb cytostatics from aqueous solutions, including urine and wastewater, using a portable filter device for point-of-source removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wastewater treatment technologies (nanofiltration, photo-assisted oxidation, ozonation) are used to remove cytostatics, then removal capability is improved, but device complexity and implementation difficulty increase significantly
Solution Approach 1:
The patent employs porous silica particles as a support matrix for immobilizing ionic liquid functional groups. The porous structure provides high surface area and accessibility for cytostatics adsorption, enabling efficient removal without requiring complex treatment systems. This approach simplifies the technology while maintaining high removal capability.
Solution Approach 2:
The invention creates a composite material combining silica support with ionic liquid functional groups (ammonium salts). This composite structure integrates the advantages of both components: the structural stability and porosity of silica with the high selectivity and adsorption capacity of ionic liquids, achieving effective cytostatics removal through a relatively simple system.
2Ease of operation
If non-selective adsorbents are used for cytostatics removal, then ease of operation is improved, but harmful factors increase due to lack of selectivity and toxic byproduct formation
Solution Approach 1:
The patent functionalizes specific regions of the silica surface with particular ionic liquid groups (ammonium salts) that have specific affinity for cytostatics. This localized functionalization creates selective binding sites that preferentially adsorb cytostatics over other substances, reducing non-specific adsorption and minimizing harmful byproduct formation while maintaining operational simplicity.
Solution Approach 2:
The invention transforms the potentially harmful interaction between cytostatics and biological systems into a beneficial adsorption process. By designing ionic liquid functional groups that specifically bind to cytostatics through favorable molecular interactions, the system converts what would be toxic exposure into a controlled removal process, eliminating the harmful effects while keeping operation simple.
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 silica-based materials achieve high adsorption efficiencies for cytostatics, significantly reducing their toxicity in treated samples and preventing environmental contamination, with the portable device enabling effective removal at the point of source, such as in domestic and hospital effluents.
Implementation Method 1
The present disclosure relates to the use of a composition as adsorbent of a cytostatic compound in an aqueous solution
Data Source
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AI summary
The present disclosure relates to the use of a composition as adsorbent of a cytostatic compound in an aqueous solution, wherein the composition comprises an ionic liquid supported on a silica-based material, wherein the silica-based material is a silica particle, and the ionic liquid comprises an ammonium salt and a chloride anion. The present disclosure also relates to a portable device comprising the composition of the present disclosure, preferably in powdered format or granule format.