| 초록 |
A significant drawback of current structural color sensors is their limited intrinsic affinity for specific targets of interest and resulting poor selectivity against analytes with similar chemical structures. There is various kinds of methods to promote target specificity into structural color sensor, but incorporating the analyte-responsive elements into the sensing device is still challenging because it requires complex designs and multistep synthetic pathways. Here, we developed a novel bioinspired colorimetric matrice for the explosive detection using hierarchical virus nanostructures. Our sensors responded rapidly upon exposure to target materials, resulting in color changes observable by the naked eye. With the aid of a common handheld device, we could detect down to very low concentration of target molecule in a selective manner. Our novel colorimetric sensors can be useful for the detection of a wide variety of harmful toxicants to protect human health and national security. |
