Breakthrough in Nanotechnology: Researchers Develop Biogenic Organic-Inorganic Nanohybrid System

A team of researchers at the Technical University of Liberec has made a groundbreaking discovery in the field of nanotechnology. By leveraging a novel method to extract nanocellulose from rice husks, the team has successfully created a biogenic organic-inorganic nanohybrid system. This innovative material has the potential to revolutionize various fields, including biomedical, cosmetic, technical, and food applications. The research, published in the journal Polymers, showcases the team's expertise in nanotechnology and their commitment to exploring sustainable solutions.

Key Takeaways:

• The researchers developed a novel method to extract nanocellulose from rice husks, which eliminates hemicellulose and lignin while maintaining the integrity of the cellulosic and silica constituents.
• Three distinct processing methods were tested to extract the nanocellulose, with wet milling using a high-shear wet media mill from Masuko Sangyo Co., Ltd. successfully producing cellulose nanofibrils and silica nanoparticles.
• The silica nanoparticles were found to adhere to the cellulose nanofibrils, forming a biogenic organic-inorganic nanohybrid system with potential applications in biomedical, cosmetic, and technical fields.
• The nanofibers had lengths in the range of 120 nm and below, while the nanoparticles were in the tens of nanometers.
• The research revealed that the wet milling method successfully produced cellulose nanofibrils and silica nanoparticles, forming a biogenic organic-inorganic nanohybrid system.
• The study's lead author, Dora Kroisova, stated that the research has "potential applications across diverse fields, including biomedical, cosmetic, technical, and food applications."
• The research was supported by the Ministry of Education, Youth and Sports of the Czech Republic.
• Additional authors of the study include Yakoub Touati and Stepanka Dvorackova.

Statistics:

• Length of nanofibers: 120 nm and below
• Size of nanoparticles: tens of nanometers
• Number of processing methods tested: 3 (hand milling, ball milling, and wet milling)
• Number of analytical methods used to characterize the samples: 6 (SEM, EDX, TEM, FTIR, DSC, and TGA)
• Potential applications of the biogenic organic-inorganic nanohybrid system: 5 (biomedical, cosmetic, technical, food, and emerging technologies)

Sources:

• Polymers: Preparation and Characterization of Submicrometer and Nanometer Cellulose Fiber with Biogenic SiO2, 2025;17(6):761.
• Mdpi: St Alban-Anlage 66, Ch-4052 Basel, Switzerland.
• Technical University of Liberec: Assembly and Engineering Metrology, Dept. of Machining, Faculty of Mechanical Engineering, 461 17 Liberec, Czech Republic.
• Masuko Sangyo Co., Ltd.: Kawaguchi-city, Japan.