evidence: The present invention provides an Influenza A H1N1 subtype-specific aptamer. The aptamer was selected in vitro using SELEX and a microfluidic chip system. The aptamer is stable, establishing sensitivity about 100 times higher than antibody and high specificity to Influenza A H1N1 subtype. Thus, the aptamer can be effective in detection of H1N1 influenza virus. [...] Thank you for your purchase! The File Wrapper for Patent Number 8835624 will be available within the next 24 hours. To add this patent to one, or more, of your portfolios, simply click the add button.