Abstract: A device for testing a biological sample includes a housing, two or more test pads, and a sample pad. The sample pad and test pads are disposed within an interior portion of the housing. The sample pad is in fluid communication with an opening defined in an outer surface of the housing for receiving the biological sample. At least a portion of each test pad is in contact with the sample pad and is configured to test the biological sample. At least one window is defined in the outer surface of the housing adjacent the test pads such that the test pads are visible from outside of the housing. A first test pad may detect a threshold amount of CD44 in the biological sample, and a second test pad may detect total protein in the biological sample. The results are then used for early detection of cancers.

Abstract: A device for testing a biological sample includes a housing, two or more test pads, and a sample pad. The sample pad and test pads are disposed within an interior portion of the housing. The sample pad is in fluid communication with an opening defined in an outer surface of the housing for receiving the biological sample. At least a portion of each test pad is in contact with the sample pad and is configured to test the biological sample. At least one window is defined in the outer surface of the housing adjacent the test pads such that the test pads are visible from outside of the housing. A first test pad may detect a threshold amount of CD44 in the biological sample, and a second test pad may detect total protein in the biological sample. The results are then used for early detection of cancers.

Abstract: A device for testing a biological sample includes a test strip. The test strip includes a substrate having a first surface and an opposite, second surface; a first sample pad and a second sample pad disposed on the first surface and the second surface respectively, and configured to receive the biological sample; a first test pad disposed on the first surface, in contact with the first sample pad, and configured to test the biological sample received from the first sample pad; and a second test pad disposed on the second surface, in contact with the second sample pad, and configured to test the biological sample received from the second sample pad. The first and second sample pads may be configured to evaluate the CD44 protein and total protein of the sample, and used for early detection of neck squamous cell carcinoma (HNSCC).