What technique allowed scientists to view nAChRs in their open state?

Question

Quizplus · Accepted Answer

Plunge freezing is a technique used in cryo-electron microscopy (cryo-EM) that allows scientists to rapidly freeze biological samples in their native state, preserving their structure for imaging. This method has enabled the visualization of many biological molecules, including nAChRs (nicotinic acetylcholine receptors), in various states, such as the open state, by capturing them in a snapshot without the need for chemical fixation or staining.

What Technique Allowed Scientists to View NAChRs in Their Open