Which groundbreaking laboratory instrument, first commercialized in 1988, uses a soft ionization technique that revolutionized the study of proteins and other large biomolecules?

Many scientific discoveries wouldn't have been possible without innovative lab equipment designs. From microscopes to centrifuges, scientific instruments represent some of the most impactful product designs in history. This poll tests your knowledge about a revolutionary scientific product that changed research capabilities worldwide. Do you know which famous scientific instrument design breakthrough opened new frontiers in molecular research?

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Matrix-Assisted Laser Desorption/Ionization (MALDI) Mass Spectrometer
Atomic Force Microscope (AFM)
Polymerase Chain Reaction (PCR) Thermocycler
Confocal Laser Scanning Microscope