In vitro Fertilization (IMAGE) American Chemical Society Caption Scientists could improve the success rate of in vitro fertilization using a "lab on a chip" to study embryos. Above is a mouse embryo at the fifth day of development cultured in a 1 microliter droplet. Credit Mark Johnson and Amanda Pennington Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.