The Root of the Science, Anne Chisa

The Root of the Science Podcast airs every Monday. Host Anne Chisa, aka Anne with an E, interviews guests from around the world, highlighting the work of Africans in STEM and giving them the opportunity to tell their stories in their own voice, and to talk about their research or projects. Chisa finds out why they got into STEM (the ROOT of their science) and has in-depth conversations about their lives, both in and away from the science.

Recent episodes feature:

• Sandiso Ngwenya, PhD student in chemistry, who describes her love of beauty, the stereotypes of what female scientists are supposed to look like and how women such as herself are changing that;
• Tracy Vongai Mapfumo, a passion-driven entrepreneur, food innovator, crop scientist;
• Dr Cosnet Lerato Rametse, a clinician scientist, MD & PhD candidate in immunology, and her passion for pathology; and,
• Faith February, PhD mature student in oceanography at the University of Cape Town who is researching the effects of atmospheric aerosols on climate change.

You can follow her work here:

Twitter: @Annelinda_c and @RootofSciPod
Facebook: facebook.com/anne.chisa
Instagram: @rootofscipod
LinkedIn: linkedin.com/in/anne-chisa
Website: linktr.ee/RootofSciencePodcasts

Professor Dame Pratibha Gai

Professor Dame Pratibha Gai co-invented the atomic resolution environmental transmission electron microscope (ETEM), which allows scientists to visualise and analyse gas-catalyst reactions at an atomic scale, leading to a better understanding of how catalysts work. 

Over two decades, Gai and her team redesigned a standard electron microscope. They drilled a hole through the imaging lens so that gas could be pumped into the electron microscope chamber, turning it into a chemical reaction vessel that could be used at high temperatures and pressures. 

Using the ETEM, Gai became the first person to see “columns of atoms” interacting in real time during a reaction. Before the ETEM, such high resolution microscopy could only be done before or after a chemical reaction had taken place – it wasn’t possible to watch the reaction happening. 

“I could see how a substrate interacted with a noble metal nanoparticle catalyst and watch the changing structure at atomic level,” she told Wiley Analytical Science Magazine. “It was thrilling.”

The newest version of the microscope is the environmental scanning transmission electron microscope (ESTEM), which allows scientists to see individual atoms undergoing chemical reactions. 

Gai uses the ESTEM to more fully understand chemical reactions and to develop catalysts for use in fields such as medicine and sustainable materials. She has developed antibiotic nanoparticles to control infection in medical implants, and an environmentally responsible nanocoating process for strong polymers and coatings.

Gai became a Dame Commander of the Order of the British Empire For services to Chemical Sciences and Technology in 2018, and a L’Oréal-UNESCO For Women in Science Awards Laureate for Europe in 2013. She’s also an honorary fellow of the Royal Academy of Engineering, the Royal Society, and the Royal Microscopical Society. 

Further reading

• Pratibha Gai, Wikipedia
• Pratibha Gai, The Royal Society
• Professor Dame Pratibha Gai DBE, Royal Academy of Engineering
• Profile: Professor Pratibha Gai – An eye for atoms, Microscopy and Analysis, 26 September 2013
• Pratibha L. Gai, Alex Scott, C&EN, 25 November 2013
• Atoms in Action with Professor Pratibha Gai (video), Professor Pratibha Gai, The Royal Institution, 1 October 2014
• Pratibha Gai is an inspiration, inventing world’s best microscope but kept it patent-free, Monit Khanna, India Times, 8 March 2020

Rebel Cell: Cancer, Evolution and the Science of Life, Dr Kat Arney

Cancer has always been with us. It killed our hominid ancestors, the mammals they evolved from and the dinosaurs that trampled the ground before that. Tumours grow in pets, livestock and wild animals. Even tiny jelly-like Hydra – creatures that are little more than a tube full of water – can get cancer. Paradoxically, many of us think of cancer as a contemporary killer, a disease of our own making caused by our modern lifestyles. But that’s not true. Although it might be rare in many species, cancer is the enemy lurking within almost every living creature. Why? Because cancer is a bug in the system of life. We get cancer because we can’t not get it.

Cancer starts when cells revolt, throwing off their molecular shackles, and growing and dividing out of control in a shambolic mockery of normal life. This is why we can’t avoid cancer: because the very genes that drive it are essential for life itself. The revolution has raged, on and off, for millions of years. But it was only in the twentieth century that doctors and scientists made any significant progress in understanding and treating cancer, and it’s only in the past few decades that we’ve finally begun to kick the mob’s malignant arse. Now the game is changing. Scientists have infiltrated cancer’s cellular rebellion and are finally learning its secrets.

Geneticist and science writer Kat Arney takes the reader back to the dawn of life on planet earth right up to the present day to get to the heart of what cancer really is and how by better understanding it we might one day overcome it.

Order the book on Bookshop.org.uk here and your purchase will support a local independent bookshop of your choice!

You can follow her work here:

Twitter: @Kat_Arney
Facebook: facebook.com/KatArneyWrites
LinkedIn: linkedin.com/in/kat-arney-27767b1a
Website: katarney.com

Professor Vivian Wing-Wah Yam, 任詠華

Professor Vivian Wing-Wah Yam is a chemist whose work on brighter and more efficient organic light emitting diodes (OLEDs) has led to the development of more efficient displays for mobile phones and laptops. These OLEDs can be deposited on a variety of materials, including clear plastic and glass, leading to better car headlights and larger flat screen TVs.

Yam’s aim is to reduce the amount of energy used in lighting by developing much more efficient lights and displays. Her research focuses on creating new photoactive materials by combining metal atoms with organic molecules that can absorb or emit light at a range of wavelengths and efficiencies.

Photoactive materials with tunable absorption and emission colours and other properties may lead to the development of materials that can more efficiently store solar energy, improving photovoltaics and solar fuels, and improving OLED displays and white organic light-emitting diodes (WOLEDs) for solid state lighting.

Other uses for these photoactive materials include harvesting sunlight for the photocatalysis of water to produce hydrogen gas, sensing biological molecules such as the amyloids found in Alzheimer’s disease, or even developing new binary optical memory for digital data storage.

In 2001, she became the youngest member of the Chinese Academy of Sciences, and in 2011 she became a L’Oréal-UNESCO Awards for Women in Science laureate. This year, she was a recipient of the 2022 American Chemical Society (ACS) National Award, The Josef Michl ACS Award in Photochemistry.

She is currently working on developing OLEDs with cheaper, more abundant metals such as nickel. She’s also investigating organic resistive memory which relies on molecules that don’t conduct electricity at low voltages, but can conduct at high voltages thus creating a binary resistive memory.

You can follow her work here:

Twitter: @VivianYam1
Website: web.hku.hk/~wwyam/yam/homepage/

Further reading

• Vivian Wing-Wah Yam, Wikipedia
• Vivian Wing-Wah Yam, SPIE
• Women in Chemistry — Interview with Vivian Yam, Vera Köster, Chemistry Views, 6 July 2011
• Profile of Vivian W.-W. Yam, Farooq Ahmed, PNAS, 14 Mar 2013
• Asia’s Scientific Trailblazers: Vivian Yam, Kami Navarro, Asian Scientist, 10 November 2020
• HKU renowned chemist Professor Vivian Wing-Wah YAM receives 2022 American Chemical Society (ACS) National Award – the 2022 Josef Michl ACS Award in Photochemistry, The University of Hong Kong, 4 October 2021

Pros and Comms, Maaria Ginai

In Pros and Comms, scientist turned life sciences communications professional Maaria Ginai talks to experts from different sectors to find out how to create science comms stories that resonate with your audience. Recent episodes explore:

• bias in science with Emily Sena, senior lecturer in preclinical research at the University of Edinburgh and editor in chief at the BMJ Open Science journal;
• academia and entrepreneurship with Shara Cohen, former scientist, serial entrepreneur and the founder of mumsinscience; and,
• science and the media, and the public viewing science process in real time through the pandemic with Fiona Fox, the CEO of the Science Media Centre in London.

You can follow her work here:

Twitter: @Maaria_Ginai, @prosandcomms and @MowbiUK
LinkedIn: uk.linkedin.com/in/mginai