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UCLA researchers discover sperm move along a ‘twisting ribbon’

By Guest PostApril 30, 2013Healthaydogan ozcan, chemicals, chemo attractants, chiral ribbon patterns, euan mcleod, fertilization, flagella propel, functions, holographic microscope, horse sperm cells, human, inkyum choi, jaiwen feng, kalvin huang, micro swimmers, micrometers, microscale motion, migration of cells, sperm, sperm cells, sperm head, sperm motility, sperm motion, swimming patterns, ting wei su, toxins, twisted ribbon pattern, twisting ribbon, ucla researchers

Opening the door to more sophisticated investigation of sperm locomotion and biophysics, researchers from UCLA’s Henry Samueli School of Engineering and Applied Science have identified previously unobserved swimming patterns in human and horse sperm cells.

This research, published in Scientific Reports, a journal of the Nature Publishing Group, could lead to a deeper understanding of how sperm move on their way to fertilization or other functions and how they react when encountering various toxins or chemicals. (more…)

UCLA Engineers Shed New Light on 3-D Motion of Human Sperm Cells

By Guest PostSeptember 20, 2012Health, Scienceaydogan ozcan, biophysics, corkscrew, curved, distance, helical, human, illumination, liang xue, light source, linear, micrometers, microorganism, optical microscope, rotation speed, sperm cell, statistical behavior, swimming pattern, three-dimensional, ting wei su

Using new lensless imaging platform, team observes rare helical movements

A team of researchers from the UCLA Henry Samueli School of Engineering and Applied Science has, for the first time, directly recorded the three-dimensional helical swimming patterns of human sperm cells.

The team, led by Aydogan Ozcan, associate professor of electrical engineering and bioengineering, developed a novel lensless computational imaging platform that accurately tracked more than 24,000 individual sperm cells in a large volume. This involved observing the individual rotations of each sperm cell, including helical movement patterns, rotation speed, and linear and curved distances traveled. (more…)

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UCLA researchers discover sperm move along a ‘twisting ribbon’

UCLA Engineers Shed New Light on 3-D Motion of Human Sperm Cells