Rotational dynamics of optically trapped human spermatozoa.

ABSTRACT:

Introduction

Optical trapping is a laser-based method for probing the physiological and mechanical properties of cells in a noninvasive manner. As sperm motility is an important criterion for assessing the male fertility potential, this technique is used to study sperm cell motility behavior and rotational dynamics.

Methods and patients

An integrated optical system with near-infrared laser beam has been used to analyze rotational dynamics of live sperm cells from oligozoospermic and asthenozoospermic cases and compared with controls.

Results

The linear, translational motion of the sperm is converted into rotational motion on being optically trapped, without causing any adverse effect on spermatozoa. The rotational speed of sperm cells from infertile men is observed to

SUBMITTER: Subramani E 

PROVIDER: S-EPMC3926395 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature