f^ymitochondria, vacuoles, nucleus, ribosomes, lysosomes, spheroids, filaments, microtubules, cilia, flagella, lipid droplets, endoplasmic reticulum, plasma membranes, synaptic terminals, neurotransmitters, capsules, nanowires, microrobots, hyaline cartilage, bacterial colonies, algae filaments, fungal hyphae, silica particles, calcium carbonate crystals, titanium dioxide nanoparticles