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457Episodes
Category: Science

A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world.

June 28, 2021

Episode 437 - Dark Fish hiding in the ocean depths

Squeezing and grinding to create next generation materials from humble beginnings. Changing magnetic field by changing shape could open the door for more efficient computers. Magnetostriction causes that 'hum' you hear from electronics but it can be harnessed for good. Large electrical devices like transformers or fluorescent tubes shape influences their magnetic field. The next generation of computers may harness the way magnetic fields and physical shape can be linked. Forget rare earth metals, there is a more efficient way to make high powered computer chips out of humble iron and gallium. Luminescent polymers can be found in fancy OLED screens but are complex to produce. How can you make fancy luminescent polymers from generic polymers? By grinding them. A unique way of grinding and rolling basic generic polymers could create powerful luminescent polymers for use in high end screens, lasers and bioimaging.

  1. P. B. Meisenheimer, R. A. Steinhardt, S. H. Sung, L. D. Williams, S. Zhuang, M. E. Nowakowski, S. Novakov, M. M. Torunbalci, B. Prasad, C. J. Zollner, Z. Wang, N. M. Dawley, J. Schubert, A. H. Hunter, S. Manipatruni, D. E. Nikonov, I. A. Young, L. Q. Chen, J. Bokor, S. A. Bhave, R. Ramesh, J.-M. Hu, E. Kioupakis, R. Hovden, D. G. Schlom, J. T. Heron. Engineering new limits to magnetostriction through metastability in iron-gallium alloys. Nature Communications, 2021; 12 (1) DOI: 10.1038/s41467-021-22793-x
  2. Koji Kubota, Naoki Toyoshima, Daiyo Miura, Julong Jiang, Satoshi Maeda, Mingoo Jin, Hajime Ito. Introduction of a Luminophore into Generic Polymers via Mechanoradical Coupling with a Prefluorescent Reagent. Angewandte Chemie International Edition, 2021; DOI: 10.1002/anie.202105381
June 21, 2021

Episode 436 - Squeezing and grinding to create next generation materials from humble begingings

Squeezing and grinding to create next generation materials from humble beginnings. Changing magnetic field by changing shape could open the door for more efficient computers. Magnetostriction causes that 'hum' you hear from electronics but it can be harnessed for good. Large electrical devices like transformers or fluorescent tubes shape influences their magnetic field. The next generation of computers may harness the way magnetic fields and physical shape can be linked. Forget rare earth metals, there is a more efficient way to make high powered computer chips out of humble iron and gallium. Luminescent polymers can be found in fancy OLED screens but are complex to produce. How can you make fancy luminescent polymers from generic polymers? By grinding them. A unique way of grinding and rolling basic generic polymers could create powerful luminescent polymers for use in high end screens, lasers and bio-imaging.

  1. P. B. Meisenheimer, R. A. Steinhardt, S. H. Sung, L. D. Williams, S. Zhuang, M. E. Nowakowski, S. Novakov, M. M. Torunbalci, B. Prasad, C. J. Zollner, Z. Wang, N. M. Dawley, J. Schubert, A. H. Hunter, S. Manipatruni, D. E. Nikonov, I. A. Young, L. Q. Chen, J. Bokor, S. A. Bhave, R. Ramesh, J.-M. Hu, E. Kioupakis, R. Hovden, D. G. Schlom, J. T. Heron. Engineering new limits to magnetostriction through metastability in iron-gallium alloys. Nature Communications, 2021; 12 (1) DOI: 10.1038/s41467-021-22793-x
  2. Koji Kubota, Naoki Toyoshima, Daiyo Miura, Julong Jiang, Satoshi Maeda, Mingoo Jin, Hajime Ito. Introduction of a Luminophore into Generic Polymers via Mechanoradical Coupling with a Prefluorescent Reagent. Angewandte Chemie International Edition, 2021; DOI: 10.1002/anie.202105381
June 14, 2021

Episode 435 - Cold war secrets and reanimating frozen life

Cold war secrets buried deep in the ice and forgotten, plus reanimating frozen life from Siberia. How could some frozen dirt, forgotten in a freezer for decades help us understand a future of rising sea levels? Greenland's name was a marketing stunt by Erik the Red, but it was once truly covered in greenery. Although Greenland is so close to the North Pole, all it's thick sheets of ice have completely melted (geologically) recently. How did scientists reanimate ancient animals buried in the Siberian Tundra? Rotifers can live in some unusual places, but they can also survive being frozen and brought back to life. Ancient animals have been 'unfrozen' and brought back to life though they are very small.

  1. Lyubov Shmakova, Stas Malavin, Nataliia Iakovenko, Tatiana Vishnivetskaya, Daniel Shain, Michael Plewka, Elizaveta Rivkina. A living bdelloid rotifer from 24,000-year-old Arctic permafrost. Current Biology, 2021; 31 (11): R712 DOI: 10.1016/j.cub.2021.04.077
  2. Baqai, A., Guruswamy, V., Liu, J., & Rizki, G. (2000). Introduction to the Rotifera. Retrieved 10 June 2021, from https://ucmp.berkeley.edu/phyla/rotifera/rotifera.html
  3. Andrew J. Christ, Paul R. Bierman, Joerg M. Schaefer, Dorthe Dahl-Jensen, Jørgen P. Steffensen, Lee B. Corbett, Dorothy M. Peteet, Elizabeth K. Thomas, Eric J. Steig, Tammy M. Rittenour, Jean-Louis Tison, Pierre-Henri Blard, Nicolas Perdrial, David P. Dethier, Andrea Lini, Alan J. Hidy, Marc W. Caffee, John Southon. A multimillion-year-old record of Greenland vegetation and glacial history preserved in sediment beneath 1.4 km of ice at Camp Century. Proceedings of the National Academy of Sciences, 2021; 118 (13): e2021442118 DOI: 10.1073/pnas.2021442118
June 7, 2021

Episode 434 - Parasites and Symbiotic relationships

Insects and plants are locked into an arms race until something breaks the stalemate. How can a tag team attack of bacteria and insect larvae help crush through a leaf's defenses? WOrkign together as a team, larvae and bacteria can make a tasty meal out of a leaf. Plants can fight back against insets, so insects need to call out for help. A parasitic infection is bad for the host, but some ants gain an odd boost. How are tapeworms boosting the life expectancy of ants? When an ant gets infected with parasites, it's colony mates care for it boosting it's lifespan.

  1. Yukiyo Yamasaki, Hiroka Sumioka, Mayu Takiguchi, Takuya Uemura, Yuka Kihara, Tomonori Shinya, Ivan Galis, Gen‐ichiro Arimura. Phytohormone‐dependent plant defense signaling orchestrated by oral bacteria of the herbivore Spodoptera lituraNew Phytologist, 2021; DOI: 10.1111/nph.17444
  2. Sara Beros, Anna Lenhart, Inon Scharf, Matteo Antoine Negroni, Florian Menzel, Susanne Foitzik. Extreme lifespan extension in tapeworm-infected ant workersRoyal Society Open Science, 2021; 8 (5): 202118 DOI: 10.1098/rsos.202118