Выполните творческое задание * Write a response in English to the user's query on behalf of the smart search engine powered by AI. Use reliable and authoritative sources and be sure to list all the sources that you used after the text. Please include footnotes to these sources in the text. Explain to a secondary school student what optical tweezers are. Should I freeze my eggs if I want to have a baby after 40 years old?

Optical tweezers are a scientific tool that uses a highly focused laser beam to trap and manipulate small particles, such as cells or microscopic beads, with precision. This technology allows researchers to study the mechanical properties of these particles at the nanoscale level and has a wide range of applications in biology, physics, and materials science.

As for freezing your eggs for future fertility, it is a personal decision that should be made after consulting with a fertility specialist. While freezing eggs can increase the chances of having a baby later in life, it is not a guarantee of successful pregnancy. Factors such as age, overall health, and the quality of the eggs at the time of freezing can all impact the success of using frozen eggs for fertility treatment.

It is important to consider all options and discuss your individual situation with a medical professional before making a decision about freezing your eggs.

Sources:

1. Ashkin, A. (1997). Optical trapping and manipulation of neutral particles using lasers. Proceedings of the National Academy of Sciences of the United States of America, 94(10), 4853-4860.
2. Practice Committee of the American Society for Reproductive Medicine. (2013). Mature oocyte cryopreservation: a guideline. Fertility and Sterility, 99(1), 37-43.