The behavior of air bubbles in ordinary breakfast syrup demonstrates how scientists might be able to make vanishingly thin tubes and fibers for biomedical and other applications.
Previous experiments conducted in Sidney Nagels laboratory at the University of Chicago showed how to make liquid threads that measure only 10 microns in diameter (approximately one-fifth the diameter of a human hair). Now his Chicago colleague Wendy Zhang reports in the current issue of Physical Review Letters that it is theoretically possible to make much thinner threads by slightly altering experimental procedures. If proven in the laboratory, the technique has potential use in fiber optics, electronics and other industries. "There are many people who are trying to use this idea, or ideas like this, to make very thin wires," said Zhang, an Assistant Professor in Physics at the University of Chicago. "Theyre very interested to know whats the smallest size that they can achieve."
The calculation that Zhang devised to answer that question indicates there is no theoretical limit to the thinness of a thread produced via fluid flow. But the calculation doesnt account for the microscopic building blocks of matter. In reality, she said, a thread cannot be thinner than the molecules of which it is made. "In my opinion, this great work will open wide new avenues for the controlled production of extremely thin and long holes in materials like polymers, glasses and ceramics," said Alfonso Gañán-Calvo of the Universidad de Sevilla in Spain. He added that the work could have "an enormous impact in fields from biomedicine and biotechnology to the hot nanotech industry."
Steve Koppes | EurekAlert!
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In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
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Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
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