Microscope Slide Mounting Film Eliminates Coverslip
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Solution Overview
Problem
The conventional mounting process of microscope slides for biological, cytological, and histological samples is time-consuming, prone to errors, and involves the use of toxic solvents like xylene, leading to issues such as air bubbles, misalignment of coverslips, and prolonged drying times, which can damage the samples and complicate further analysis.
Innovation Solution
A method involving dipping microscope slides into a fluid composition comprising ethyl acetate, butyl acetate, or isoparaffin-based solvents combined with polymethyl methacrylate or polyethyl acrylate polymers, followed by dripping and air-drying, which creates a uniform, ultra-transparent, and adhesive film that eliminates the need for a coverslip and simplifies the mounting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting medium with coverslip is used, then sample protection and adhesion are achieved, but preparation time increases and errors occur
Solution Approach 1:
The invention extracts and eliminates the coverslip from the mounting process, replacing it with a polymer film that is applied directly to the microscope slide. This removes the complex assembly step of placing and aligning a separate coverslip, thereby reducing preparation time while maintaining sample protection through the alternative polymer film layer.
Solution Approach 2:
The invention merges the mounting medium and coverslip functions into a single integrated polymer film composition. This film simultaneously provides adhesion to the slide, protection for the sample, and the mounting function, eliminating the need for separate components and reducing the overall mounting process time.
2Duration of action of stationary object
If conventional mounting procedure is used, then sample conservation is achieved, but air bubbles and misalignment occur
Solution Approach 1:
The polymer film composition is designed to self-level and self-adhere to the microscope slide without requiring external manipulation or alignment procedures. The film automatically distributes itself uniformly across the slide surface, eliminating the need for precise manual alignment and preventing air bubble formation that occurs with traditional coverslip placement.
3Ease of manufacture
If xylene is used for dehydration and mounting, then sample preparation is achieved, but toxic substances are involved
Solution Approach 1:
The invention changes the chemical composition parameters of the mounting medium by replacing xylene-based solvents with alternative solvents that have lower toxicity. The polymer film composition uses different solvent systems that maintain the necessary chemical properties for sample dehydration and mounting while eliminating or reducing the use of harmful substances like xylene.
4Ease of operation
If manual mounting is used, then flexibility is maintained, but precision and consistency deteriorate
Solution Approach 1:
The invention replaces the mechanical manipulation required for manual coverslip placement with a chemical process where the polymer film is applied and self-adheres. This substitution of mechanical operations with a chemical self-assembly process eliminates the variability introduced by manual handling while maintaining operational simplicity, thereby improving precision and consistency.
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 reduces preparation time, minimizes errors, and provides a stable, bubble-free mounting solution that is easy to dismount, while protecting the samples and avoiding distortions under microscopy, with the added advantage of not requiring UV curing or precise calibration, thus optimizing workflow and sample integrity.
Implementation Method 1
followed by dripping and air-drying, which creates a uniform, ultra-transparent, and adhesive film
Implementation Method 2
creates a uniform, ultra-transparent, and adhesive film that eliminates the need for a coverslip
Implementation Method 3
The stable adhesion of the coverslip to the microscope slide is achieved by using a mounting medium having refractive index similar to that of the microscope slide
Data Source
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AI summary
Subject-matter of the present invention is a method for the preparation of biological, cytological, histological and autopsical samples and a composition for mounting microscope slides. Subject-matter of the invention is also the samples mounted with the compositions described herein.