Symbolic Cells: Ferrofluid
2024
I created symbolic cells using magnifying optics and the Lavenhuk DTX RC1 microscope. I worked with 25 ml of ferrofluid, a liquid composed of a surfactant (detergent), a solvent (oil), and microscopic magnetite particles that strongly react to the presence of a magnetic field. Today, ferrofluid is used in applications such as cell therapy, gene therapy, and cell manufacturing. Ferrofluid conjugated with antibodies is utilized in immunomagnetic separation, a subtype of cell sorting. The ferrofluid binds to target cells, which are then magnetically separated from the cell mixture using a magnetic separator.
I worked with nine neodymium magnets of various sizes and strengths (the smallest being 2 mm / 250 g and the largest 35 mm / 12 kg). The ferrofluid adapts its properties based on different forces and intensities of magnetic reactions. In my ferrofluid experiment, I incorporated additional elements, such as liquid gallium 99.99% (Ga) (10 g), which exhibits properties like crystallization, as well as iron powder (100 g). My experiment was based on multiple approaches to ferrofluid and their combinations. I added food colorings, saline solution (NaCl), fluorescent liquids, glittery plastic particles, and other dyes to the fluid.
A Flux detector sensor film (75x75 mm), which reacts to magnetic fields by changing color, was also used, along with various materials such as papers of different textures. I worked with ferrofluid in Petri dishes (60 mm) and on microscope slides, applying the liquid using a Pasteur pipette and other tools to enhance its color and texture.
Lighting conditions played a crucial role in the outcome. I used spot LED lighting and a portable RGB LED floodlight. I evaluated the appropriate light temperature, color, and angle of illumination—top-down, side lighting, and backlighting. Each angle created a unique result and visual representation of the liquid. In contrast to controlled lighting, I also experimented in complete darkness using fluorescent liquid, which had been activated by exposure to light before the experiment.
I recorded my work using a full HD camera integrated into the microscope, connected to a computer screen, as well as a digital camera. The ferrofluid was captured as a moving video activated by magnet movement and also as static photographs.