Collage of images including sperm, bacteria, coral, and an illustration of a researcher
Our Favorite Cell and Molecular Biology Stories of 2021
Beyond The Scientist’s coverage of COVID-19’s molecular underpinnings were many other stories highlighting the advances made in scientists’ understanding of the biology of cells.
Our Favorite Cell and Molecular Biology Stories of 2021
Our Favorite Cell and Molecular Biology Stories of 2021

Beyond The Scientist’s coverage of COVID-19’s molecular underpinnings were many other stories highlighting the advances made in scientists’ understanding of the biology of cells.

Beyond The Scientist’s coverage of COVID-19’s molecular underpinnings were many other stories highlighting the advances made in scientists’ understanding of the biology of cells.

contraception
A grayscale electron micrograph shows hundreds of sperm cells stuck together in the foreground
Antibodies Stop Sperm in Their Tracks
Abby Olena | Aug 11, 2021
Engineered antibodies trap and immobilize human sperm in the reproductive tract of female sheep, paving the way for possible use as a nonhormonal contraceptive in people.
Monthly Contraceptive Pill Shows Promise in Pig Study
Catherine Offord | Dec 5, 2019
A device that releases synthetic hormones slowly over time could one day provide a more practical alternative to daily birth control pills, say scientists.
Endocrinologist and Reproductive Physiologist Wayne Bardin Dies
Catherine Offord | Nov 18, 2019
Bardin’s work helped lead to the development of long-acting contraceptive devices for women.
Image of the Day: Fizzy Birth Control
Emily Makowski | Nov 7, 2019
A microneedle patch can subcutaneously deliver a contraceptive hormone to rats.
Chemist Behind the Combined Oral Contraceptive Dies at 102
Catherine Offord | Jul 2, 2019
George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

a woman holds a pregnancy test on which no lines have yet appeared
Gene Variant Linked to Lower Levels of Hormonal Birth Control
Shawna Williams | Mar 14, 2019
Such differences may help explain accidental pregnancies among women on the pill, researchers say.
Image of the Day: Broken Needles
Carolyn Wilke | Jan 17, 2019
A long-acting contraceptive patch with microscopic needles releases a drug slowly over time.
Hormonal Male Contraceptive to Enter Clinical Trial
Jef Akst | Dec 21, 2017
The gel, which men rub on their upper bodies daily, delivers synthetic progestin to block the testes from producing normal levels of sperm.
Next Generation: Sperm-Catching Beads
Anna Azvolinsky | Apr 27, 2016
Sperm-binding, peptide–coated beads work as an implantable contraception device in mice and as a means of selecting human sperm for assisted reproduction techniques, researchers show. 
Influential Chemist Dies
Tracy Vence | Feb 2, 2015
Carl Djerassi, who synthesized a hormone that was key to the creation of the birth control pill, has passed away at age 91.
Sex and Drugs
Kerry Grens | Jul 1, 2014
Did 20th-century pharmaceutical and technological advances shape modern sexual behaviors?
Sperm on Lockdown
Abby Olena | Dec 4, 2013
In a proof-of-principle study, genetic deletion of two genes renders male mice infertile by preventing sperm transport through the vas deferens.
Birth Control Pills and Prostate Cancer
Bob Grant | Nov 16, 2011
A new study suggests a possible link between the use of oral contraceptives and rising prostate cancer rates.