Which of these scientific instrument innovations revolutionized protein structure analysis by allowing researchers to visualize molecular structures without crystallization for the first time?

The scientific instrument industry is constantly evolving with new technologies that enable researchers to make groundbreaking discoveries. These innovations often represent quantum leaps in capability, precision, or accessibility. This poll tests your knowledge of a recent major product innovation that transformed how scientists analyze molecular structures. Can you identify which technology was the actual breakthrough?

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Cryo-electron microscopy (Cryo-EM)
Quantum Resonance Spectrography (QRS)
Digital Holographic Microscopy (DHM)
Hyperspectral Raman Tomography (HRT)