A reversible male contraceptive, targeted to the testes with magnets
IMAGE: HUMAN SPERM STAINED FOR SEMEN QUALITY TESTING IN THE CLINICAL LABORATORY. view more
CREDIT: ©BOBJGALINDO
Researchers have developed magnetic, biodegradable nanomaterials that act as long lasting reversible in animal studies.
Women have several choices for long-lasting, reversible contraceptives, but most options for men are either single-use, such as condoms, or difficult to reverse, like vasectomies. Now, in a step toward a safe, long-lasting and reversible male contraceptive,
The research has been reported in ACS' Nano Letters.
Elevated temperatures, which can be caused by wearing too-tight pants or underwear, can decrease sperm count in men. Some researchers have explored the more intense heating of nanomaterials injected into the testes as a form of male birth control. However, the injection can be painful, the heating can damage skin, and most nanomaterials tested so far are not biodegradable. Weihua Ding, Fei Sun and colleagues wanted to develop a safe, effective magnetic-thermal approach to male contraception that doesn't need to be injected directly into the testes.
https://pubs.acs.org/doi/abs/10.1021/acs.nanolett.1c02181
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