- ASTM F2150
- ASTM D412
- ASTM D882
Hydrogels are increasingly popular materials used in the medical field, most commonly as delivery vehicles for drugs or as environments for cell culture. As drug delivery vehicles, hydrogels can effectively transport medications within the body to the target location without inducing an immune response. The design of their internal structure typically allows the drug to be released at the correct prescribed rate, ensuring proper absorption and efficacy.
Though there are a few standards that provide extremely basic guidelines for evaluating the physical properties of hydrogels and other biomaterials, no specific test procedures exist for this material. ASTM F2150 evaluates the properties for biomaterial scaffolds, the under-arching structure for engineered tissues. This standard simply references the more common tensile standards like ASTM D412 and ASTM D882 to serve as starting points for evaluating the tensile properties of these materials.
For the most accurate results it is imperative that these materials be tested in-vitro, surrounded by a saline solution at body temperature. Most tensile testing of hydrogels aims to identify the strength and modulus of the material in a comparative study of hydrogel compositions.Materials Testing System
Hydrogels are extremely fragile and sometimes cannot withstand side action style grips. In this case, custom shoulder end grips are ideal and can be designed specifically for the customer’s sample. They should be tested as a dog bone shape to improve the chances of failure within the gauge length.
For testing hydrogels we recommend a 6800 Series single column testing system with low-capacity grips and 100 N load cell. If highly accurate strain measurement is needed, Instron's AVE2 is ideal for this application. In order to create a suitable in-vitro environment, Instron's BioBath is required.
|ASTM F2150 Test Setup|
|1)||6800 Series Universal Testing System
|2)||BioPuls Temperature Controlled Bath
|3)||2580 Series Load Cell
|4)||2752-005 Submersible Pneumatic Grips
Bluehill Universal 软件从头开始构建，旨在提供触摸互动和直观的用户体验。使用诸如预装测试方法、几秒钟内快速测试、增强的数据导出以及 Instron Connect（一种全新功能，可提供与服务的直接通信联系）等功能，发现更简单、更智能的测试。 Bluehill 2 和 Bluehill 3 等以前版本软件的用户可以轻松升级到最新版本的 Bluehill。