Biodegradable Core-Shell Particles for Semi-Permanent Tattoos
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Solution Overview
Problem
Current tattoo removal methods, such as laser-based techniques, are expensive and invasive, and temporary solutions like henna paints do not provide a lasting experience, leading to a need for semi-permanent tattoos that retain vibrancy for several months without scarring.
Innovation Solution
A composition comprising bioabsorbable and biodegradable particles with a core-shell structure, where the shell is made of polymers like PCL or PLGA and the core contains a coloring agent, designed to aggregate in the dermis, preventing phagocytosis and maintaining tattoo vibrancy for 2-12 months before gradual release and degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If laser-based methods are used to remove tattoos, then tattoo removal is achieved, but the procedure is expensive and may not completely eliminate the tattoo
Solution Approach 1:
The patent employs biodegradable polymer particles that naturally degrade over time in the skin, eliminating the need for expensive laser removal procedures. These temporary tattoo particles are designed to be disposed of by the body's natural metabolic processes, providing a cost-effective alternative to permanent tattoos that require costly removal.
Solution Approach 2:
The patent changes the chemical composition parameters of tattoo ink by incorporating biodegradable polymers with specific molecular weights and degradation rates. This allows control over how long the tattoo remains visible and how it is naturally broken down and eliminated from the body, achieving complete removal without expensive laser procedures.
2Reliability
If surgical removal, dermabrasion, or salabrasion are used to remove tattoos, then tattoo removal is achieved, but the procedures are invasive and may lead to scarring
Solution Approach 1:
The patent uses biodegradable particles that serve as temporary tattoos designed to be naturally eliminated from the body. These particles degrade and are excreted through normal metabolic processes, avoiding invasive removal procedures and the associated scarring risks entirely.
Solution Approach 2:
The patent converts the body's natural immune response and metabolic processes, which would normally fight against foreign substances, into a beneficial mechanism for naturally eliminating the temporary tattoo particles. The biodegradable polymers are designed to be broken down by bodily enzymes and cellular processes, turning potential harm into a safe, natural removal method.
3Duration of action of moving object
If henna paints are used for temporary tattoos, then the tattoos are easily washed off, but this does not provide the feeling of having a permanent tattoo
Solution Approach 1:
The patent changes the physical and chemical parameters of temporary tattoo materials by using biodegradable polymer particles with controlled degradation rates. This allows the tattoo to remain stable and perceptible for an extended period (providing the feeling of permanence) while still being naturally eliminated over time, bridging the gap between temporary and permanent tattoos.
Solution Approach 2:
The patent uses composite materials consisting of biodegradable polymer matrices combined with pigment particles. This composite structure provides both the stability needed for long-term visibility (satisfying the perception of permanence) and the biodegradability required for natural elimination, unlike simple henna paints that lack structural integrity.
4Duration of action of stationary object
If inert pigment particles are deposited in the dermis, then permanent tattoos are achieved, but the particles cannot be eliminated by the immune system
Solution Approach 1:
The patent fundamentally changes the chemical composition parameters of tattoo particles from inert, non-biodegradable materials to biodegradable polymers with specific molecular structures that can be recognized and broken down by immune system enzymes. This allows controlled permanence followed by natural elimination, unlike traditional inert pigments.
Solution Approach 2:
The patent converts the immune system's inability to eliminate inert particles (which causes permanent tattoos) into a benefit by using biodegradable materials that the immune system can naturally process and eliminate. The previously harmful accumulation of foreign particles becomes a beneficial natural elimination process.
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 composition allows for semi-permanent tattoos that remain vibrant for an extended period without scarring, with the particles aggregating in the dermis to prevent removal and gradually degrading, ensuring a cosmetically effective duration.
Implementation Method 1
the shell comprises a polymer that is bioabsorbable and biodegradable
Implementation Method 2
the shell comprises a polymer that is bioabsorbable and biodegradable
Implementation Method 3
Without wishing to be bound by a particular theory, hydrophobic interactions lead to aggregation of the particles in the physiological milieu
Data Source
AI summary
The disclosure relates to a composition that is designed to be administered to a subject intradermally for treating pigmentless skin or creating a temporary tattoo. The composition comprises particles having a polymeric shell and a core that includes a coloring agent. The particles are in a carrier solution at a concentration that is cosmetically effective to delay the bioabsorbance and/or biodegradation of coloring agent in a subject's skin. Bioabsorbance and/or biodegradation of the particles fades the tattoo until it is no longer visible.