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In Vitro Fertilization

In Vitro Fertilization

In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...

Fertilization

Fertilization

During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...

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Nanoparticle-Based Approaches for Enhancing In Vitro Fertilization in Animal Reproduction.

Elżbieta Gałęska¹, Alicja Kowalczyk¹, Marko Samardžija²

¹Department of Environment Hygiene and Animal Welfare, Wrocław University of Environmental and Life Sciences, 51-630 Wroclaw, Poland.

International Journal of Molecular Sciences

|March 28, 2026

Summary

Nanotechnology enhances farm animal reproduction by improving sperm quality and fertilization rates using nanoparticles. This review synthesizes research on nanoparticle applications in assisted reproductive technologies for better efficiency.

Keywords:

nanoparticles nanopurification nanosorting oocyte reproduction sperm

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Area of Science:

Reproductive Biotechnology
Nanotechnology Applications
Animal Reproduction

Background:

Nanoparticles offer novel tools for reproductive biotechnology in farm animals.
Existing assisted reproductive technologies can be enhanced by nanoparticle integration.
Research synthesizes current knowledge on nanoparticle use in animal reproduction.

Purpose of the Study:

To review nanoparticle-based approaches for enhancing in vitro fertilization and assisted reproductive technologies in farm animals.
To synthesize current research on the biological mechanisms, benefits, and limitations of nanoparticles in animal reproduction.
To critically evaluate safety, toxicological concerns, and regulatory frameworks for nanoparticle use.

Main Methods:

Review of current scientific literature on nanoparticle applications in animal reproductive biotechnology.
Analysis of physicochemical properties of nanoparticles (gold, silver, zinc oxide, selenium, magnetic iron oxide) and their interactions with gametes.
Examination of nanopurification, nanosorting, and assisted sorting systems for gamete selection and sexing.

Main Results:

Nanoparticles in semen extenders and culture media improve sperm motility, integrity, and reduce oxidative stress, enhancing fertilization rates.
Nanoparticles act as carriers for hormones and growth factors, aiding oocyte maturation and embryo development.
Advanced sorting techniques using nanoparticles increase precision in sperm sexing and gamete selection.

Conclusions:

Nanoparticle-based systems show significant potential to improve reproductive efficiency and reduce economic losses in livestock.
Further research and harmonized biocompatibility criteria are needed to address safety and regulatory concerns.
Integration of nanotechnology represents a transformative step toward sustainable and precision-driven livestock breeding.