Formerly dba Texas Fluorescence Labs, TEF Labs, Inc. develops products for designing fluorescent and molecular probes at a reasoable cost. With a focus on developing new products that satisfy the deficiencies of current technologies, the firm is designing fluorescent and molecular probes that have better quantum yield, improved sensitivity and selectivity, reduced photobleaching, longer wavelengths, leakage resistance and ratiometric properties .TED Labs develop ion indicators, ionophores, PKC indicators, general fluorophores, and surfactants for cell biology, biochemistry, biomolecular screening, molecular biology, microbiology, and neuroscience. The company also provides probes for electrophysiology, live-cell function, receptors and ion channels, in situ hybridization, signal transduction, and ribonucleic acid and deoxyribonucleic acid; and pH indicators; as well as membrane potential; flow cytometry; and custom synthesis products.