Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The method may include placing the sample on the sample-holder of a phase-contrast microscope, establishing a connection between the processor of the mobile terminal and a controller of the microscope, disposing a mobile terminal on a support so that its digital image sensor is positioned in front of an ocular, launching a counting program so that the processor performs successive counting sequences on distinct analysis areas of the sample, wherein between two counting sequences the processor controls a two-axis motorized system to displace the sample, and wherein for each counting sequence the processor implements the following steps of: setting the focus, capturing a main image, and analyzing the main image in order to count the number of fibers.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The method may include placing the sample on the sample-holder of a phase-contrast microscope, establishing a connection between the processor of the mobile terminal and a controller of the microscope, disposing a mobile terminal on a support so that its digital image sensor is positioned in front of an ocular, launching a counting program so that the processor performs successive counting sequences on distinct analysis areas of the sample, wherein between two counting sequences the processor controls a two-axis motorized system to displace the sample, and wherein for each counting sequence the processor implements the following steps of: setting the focus, capturing a main image, and analyzing the main image in order to count the number of fibers.

Abstract: The preferred embodiment provides a 3D nanometer scale data encryption key. It consists in using 3D polymer patterns on silicon substrates as evolved, tri-dimensional barcodes. It provides several possible degrees of encryption which, together with the high technology involved, makes it virtually impossible to counterfeit. There is described the basic geometry, the process, the coding principles through such structures, and the reading principles. The preferred geometry is that of an array of lines, similar to a barcode when seen from above, with the difference that lines have dimensions in the tens of nanometer range. These lines are preferably made of a cross-linked, modified Poly(methyl methacrylate). Cross-linking by ultra-violet light gives them an exceptional mechanical durability for structures of this size.