Pharmaceutical Dosage Form Microstructures Anti-Counterfeiting
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Solution Overview
Problem
Current anti-counterfeiting strategies in the pharmaceutical industry are ineffective in preventing forgery and illegal re-imports, as they primarily focus on packaging security features that can be removed and reused, and lack secure labeling of pharmaceutical materials themselves.
Innovation Solution
The implementation of micro- and nanostructures in pharmaceutical dosage forms through direct compression, which creates visible and measurable optical contrast using geometrical structures and specific dyes, enhancing branding and anti-counterfeiting capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packaging security features (holograms, optically variable inks, fluorescent dyes) are applied to packages, then anti-counterfeiting capability is improved, but these features can be removed and reused making them ineffective
Solution Approach 1:
The patent extracts the security feature from the packaging and integrates it directly into the pharmaceutical dosage form itself. The micro- and nanostructures are incorporated into the tablet or capsule matrix, making the security feature an intrinsic part of the product rather than an external label or coating that can be removed.
Solution Approach 2:
The patent embeds micro- and nanostructures within the pharmaceutical dosage form matrix. These structures are nested within the tablet or capsule material, creating a hierarchical structure where the security feature is contained within the product itself, preventing removal while maintaining visibility.
2Productivity
If micro- and nanostructures are created through direct compression, then manufacturing simplicity and productivity are improved, but achieving visible optical contrast becomes challenging
Solution Approach 1:
The patent incorporates dyes or pigments into the pharmaceutical dosage form that interact with the micro- and nanostructures to produce visible optical contrast. The colorants enhance the light scattering, diffraction, or interference effects produced by the microstructures, making them clearly visible to the human eye without requiring complex manufacturing processes.
3Reliability
If security features are applied to sealing foil or labels, then anti-counterfeiting is improved, but these features possess the same disadvantages of being removable and reusable
Solution Approach 1:
The patent merges the security feature with the pharmaceutical dosage form by incorporating micro- and nanostructures directly into the tablet or capsule matrix. This combination ensures that the security feature and the medicinal product become inseparable, maintaining permanent association throughout the product lifecycle.
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 provides reliable and recognizable optical contrast for human perception, effectively differentiating and authenticating pharmaceutical products, thereby enhancing consumer safety and commercial identification.
Implementation Method 1
geometrical structures embossed into pharmaceutical dosage forms at high speed by direct compression give rise to visible and/or measurable optical contrast in the pill by locally changing the directional optical reflectivity and/or the absorption of the surface
Implementation Method 2
micro- and nanostructures impressed in such forms during the direct compression process
Implementation Method 3
The applicant found that only dry-compression techniques using certain pressure parameters can be employed in order to reliably obtain microreliefs in pharmaceutical dosage forms. In addition, the use of certain dyes is necessary, as the resulting colors strongly increase the human perception of the optical microstructures
Data Source
AI summary
A solid pharmaceutical dosage form has micro- or nanostructures impressed on the surface thereof or an interface thereof. The dosage form includes a suitable quantity and distribution of ingredients, such as one or more dyes, so as to enhance the optical contrast effect caused by the micro- or nanostructures so that the micro- or nanostructures are observable by the human eye and thereby able to provide anti-counterfeiting characteristics to the dosage form.