Abstract: In some embodiments, the present disclosure pertains to methods of detecting an analyte in a sample by associating the sample with an electrode that includes a metal-organic framework. After association, the redox properties of the electrode are evaluated. Thereafter, the presence or absence of the analyte in the sample is detected by correlating the redox properties of the electrode to the presence or absence of the analyte. In some embodiments, the present disclosure pertains to electrodes that include a metal-organic framework and an electrode surface. In particular embodiments of the present disclosure, the metal-organic framework is associated with the electrode surface. Additional embodiments of the present disclosure pertain to methods of making the electrodes of the present disclosure by associating a metal-organic framework with an electrode surface. In some embodiments, the methods of the present disclosure also include a step of mixing the metal-organic framework with a polymer.

Abstract: A document verification system may verify modification to a physical document through digital image processing. Imaging sensors capture images of a modified physical document. A digital image processing circuit measures pixel parameters for a plurality of regions of the digital images for comparison to a verification pattern to verify the document.

Abstract: A document verification system may verify modification to a physical document through digital image processing. Imaging sensors capture images of a modified physical document. A digital image processing circuit measures pixel parameters for a plurality of regions of the digital images for comparison to a verification pattern to verify the document.