A microfluidic sensor for detecting a particle in a fluidic medium, the microfluidic sensor comprising: a microfluidic channel (201, 301, 401, 501) having a width through which the fluidic medium is passed, the microfluidic channel (201, 301, 401, 501) having a flexible membrane; an array of non-flexible electrodes (203, 303, 403, 503) coupled to a first section of the microfluidic channel; the array of electrodes (203, 303, 403, 503) having spacing (d) between each electrode of the electrodes array (203, 303, 403, 503); a flexible electrode (202, 302, 402, 502) coupled to a second section of the microfluidic channel (201, 301, 401, 501) opposite to the array of non-flexible electrodes (203, 303, 403, 503, 903); an electrical analyser (204, 304, 404) in electrical communication with each electrode of the non-flexible array of electrodes (203, 303, 403, 503) and the flexible electrode (202, 302, 402, 502), the electrical analyser (204, 304, 404) applying an electrical potential between each of the electrodes in the electrode array (203, 303, 403, 503) to generate an electrical field inside the microfluidic channel (201, 301, 401, 501) with the flexible electrode (202, 302, 402, 502) acting as ground; and means for actuating the flexible electrode to narrow the width of the microfluidic channel (201, 301, 401, 501) between the first section and second section and to capture the particle between the first section and the second section of the microfluidic channel (201, 301, 401, 501), wherein the microfluidic sensor comprises a processor and at least one controller (104, 207, 307, 407), the processor in communication with the at least one controller (104, 207, 307, 407) and the electrical analyser (204, 304, 404), the processor is configured to allow the microfluidic sensor to: scan a section of the particle between two adjacent electrodes of the electrode array (203, 303, 403, 503) while the particle is captured between the first section and the second section using the electrical field generated; incrementally move the captured particle through the microfluidic channel (201, 301, 401, 501) and scan a next section of the particle between the two adjacent electrodes of the electrode array (203, 303, 403, 503) using the electrical field generated after each incremental move until the particle entirely passes through and sectional scans for the particle are obtained; and use the sectional scans to detect and identify the particle. a microfluidic channel (201, 301, 401, 501) having a width through which the fluidic medium is passed, the microfluidic channel (201, 301, 401, 501) having a flexible membrane; an array of non-flexible electrodes (203, 303, 403, 503) coupled to a first section of the microfluidic channel; the array of electrodes (203, 303, 403, 503) having spacing (d) between each electrode of the electrodes array (203, 303, 403, 503); a flexible electrode (202, 302, 402, 502) coupled to a second section of the microfluidic channel (201, 301, 401, 501) opposite to the array of non-flexible electrodes (203, 303, 403, 503, 903); an electrical analyser (204, 304, 404) in electrical communication with each electrode of the non-flexible array of electrodes (203, 303, 403, 503) and the flexible electrode (202, 302, 402, 502), the electrical analyser (204, 304, 404) applying an electrical potential between each of the electrodes in the electrode array (203, 303, 403, 503) to generate an electrical field inside the microfluidic channel (201, 301, 401, 501) with the flexible electrode (202, 302, 402, 502) acting as ground; and means for actuating the flexible electrode to narrow the width of the microfluidic channel (201, 301, 401, 501) between the first section and second section and to capture the particle between the first section and the second section of the microfluidic channel (201, 301, 401, 501), wherein the microfluidic sensor comprises a processor and at least one controller (104, 207, 307, 407), the processor in communication with the at least one controller (104, 207, 307, 407) and the electrical analyser (204, 304, 404), the processor is configured to allow the microfluidic sensor to: scan a section of the particle between two adjacent electrodes of the electrode array (203, 303, 403, 503) while the particle is captured between the first section and the second section using the electrical field generated; incrementally move the captured particle through the microfluidic channel (201, 301, 401, 501) and scan a next section of the particle between the two adjacent electrodes of the electrode array (203, 303, 403, 503) using the electrical field generated after each incremental move until the particle entirely passes through and sectional scans for the particle are obtained; and use the sectional scans to detect and identify the particle. scan a section of the particle between two adjacent electrodes of the electrode array (203, 303, 403, 503) while the particle is captured between the first section and the second section using the electrical field generated; incrementally move the captured particle through the microfluidic channel (201, 301, 401, 501) and scan a next section of the particle between the two adjacent electrodes of the electrode array (203, 303, 403, 503) using the electrical field generated after each incremental move until the particle entirely passes through and sectional scans for the particle are obtained; and use the sectional scans to detect and identify the particle.