#Scientist

better safe than sorry… #stem #scientist #phdlife #lablife

Salary progression for those who are nosy (like myself) as a girl in biology 🧬🥼 #salary #salarytransparency #scientist #careerprogression #biology

They told Marie Curie that science was not for women, but she refused to accept that. Born as Maria Salomea Skłodowska-Curie, she was denied university education in Poland simply because she was a woman. Instead of giving up, she secretly studied at the underground “Flying University,” where women risked arrest just for the right to learn. She later moved to France and became one of the first women to earn a doctorate there. Along with her husband, Pierre Curie, she discovered radium and polonium, naming polonium after her homeland, Poland. Even today, her notebooks remain radioactive, showing how much she sacrificed for science. In 1903, she became the first woman to win a Nobel Prize in Physics with Pierre Curie and Henri Becquerel. In 1911, she won her second Nobel Prize in Chemistry, becoming the first person ever to win two Nobel Prizes in two different sciences—and the only person to do so in Physics and Chemistry. During World War I, she created mobile X-ray units called the “Little Curies,” helping doctors save thousands of wounded soldiers. Her daughter Irène Joliot-Curie later won a Nobel Prize too. Marie Curie died in 1934 from aplastic anemia caused by long exposure to radiation. The same science that changed the world slowly took her life, but never her legacy. She proved that one determined woman can break every barrier and make history forever. [Nobel prize, Science, woman, Scientist, Physics, Chemistry, Mobile X-ray,Marie Curie, Albert Einstein, Max Plank, Issac Newton, Niels Bohr] #science #scientist #viral #nobelprize #fyp

A joke that scientist reading literature will understand 🤣 #PhD #phdstudent #joke #chemistry #scientist

Create your research posters and illustrations using illustrae.co. Try it out today @illustrae_co 👍🏼 #phd #phdlife #postdoc #phdstudent #academia #stem #phdjourney #researchpaper #researcher #scientist #scientists #lablife #researchposter #posterpresentation #oralpresentation #researchconference #biology #chemistry #physics #engineeringstudent #materialscience #biomaterials #biotech #biomed #medicalresearch #medicaldoctor #clinicalresearch #neuroscience #dissertation #marinebiology

We made a real cloud! ☁️ When Dr. Tatiana pours liquid nitrogen onto the carpet, it creates a thick cloud that looks like smoke. However, this is a real cloud, made of condensed water vapor, just like the clouds in the sky. Liquid nitrogen is about 400°F colder than the temperature of your skin, so when it evaporates and turns into (invisible) nitrogen gas, it rapidly cools everything around it. Water vapor in the air gets cooled and condenses into tiny liquid droplets, forming the visible cloud. 👍 LIKE and FOLLOW if you love #science! ➡️ Follow links at linktr.ee/tamuphysastr or link in bio. #tamu #physics #scientist #tamuphysics #reels #reelsinstagram #teachersofinstagram #teachers #education #educate #educational #learn #learnoninstagram #shorts #fyp #fypシ #foryou #foryoupage #experiment #DrTatiana #cloud #liquidnitrogen

Spring’s here! 🐣🌸 As temperatures begin to rise (not fast enough imo, it’s still freezing in Montreal), sap in maple trees thaws and can be collected, then boiled and concentrate into syrup and transformed into candies, desserts, and just about anything your sweetest dreams are made of. Although maple syrup is primarily composed of sugar (sucrose), its chemistry and flavor are shaped by a complex interplay of factor like sap collection and processing methods, microbial activity within the sap, environmental conditions, and the packaging and storage of the final product. Not only maple syrup is composed of sugar but also a mixture of water, minerals, organic acids, amino acids, proteins, phenol compounds and even a few vitamins. Flavors and composition also varies depending on depending on the Country it has been produced! Canada, especially the province of Quebec, where I’m from, is by far the world’s largest producer of maple syrup, followed by the United States. It’s important to recognize that maple syrup was first introduced to European colonizers by First Nations, who deserve the credit for this knowledge and tradition! As you can see from my sample, sugar from maple syrup crystallizes over time and it’s mesmerizing to look at under the microscope! 🔬 Video taken with my iPhone mounted on an Olympus BX53 microscope with an @ilabcam adapter 🔬 @evidentmicroscopy

A tardigrade!!! 😱 Here are the microorganisms I found: 1. Water fleas. These are microscopic crustaceans named Scapholeberis! I love how they have a little spike and some black pigments. These melanin pigments are found on the body parts facing towards light. Some research have shown that melanin would protect these creatures from photo damage! 2. Water bear. Found this little tardigrade walking around some green algae! Check out my tardigrade posts to learn more about them little babes 3. Red water mite. Unlike spiders, their close relatives, mites found ways to colonise under water habitats. There are thousands of aquatic mite species, mostly living in freshwater springs, streams, lakes and temporary pools, although some can be found in salt water 4. Mosquito pupa. Mosquitoes go through 4 stages: eggs, larva, pupa and adult! Here you can see the pupa with the future eyes and antennae. 5. Phacus gigas. This green leaf is an algae that can be found in freshwater habitats around the world. They swim with their flagellum located in front of the cell. The red eyespot is a photoreceptor responsible for detecting light! With this, Phacus can orient itself and swim toward a light source and ultimately produce energy by photosynthesis! 6. Gieysztoria sp. A free-living flatworm gliding aided by thousands of cilia. This one was around 0.7mm and you can even see their little black eyes, used to detect light 7. Synchaeta sp. This is a planktonic rotifer that usually zoom around super fast. Rotifers are among the smallest animals on earth! They possess a ciliated corona on their head which is used to attract food particles but also to swim around freely! The single dark eye is also visible as well as the stomach filled with algae. The most visible structure is probably the v-shaped pharynx muscle! 8. Dinobryon sp. These golden algae live in colonies that form multiple branches, making them look a bit like wheat, don’t you think? Every gold bean is a single cell encased in a protective shell called the lorica. Each cell possess two unequal flagella whipping around, a short and a long one, enabling them to move around.

The power of perspective…realizing that the “hard” you’re navigating now is the exact opportunity you once dreamed of. Analyzing, writing, and publishing the conservation research I always hoped to do is mentally exhausting - a lot of coding, reading, writing, and of course plenty of imposter syndrome. But this perspective reminds me that growth rarely feels comfortable. For anyone in this season, a reminder that you are not behind, you’re stepping into who you’re meant to become. ✨🌱 #marinebiologist #phdstudent #scientist #phdlife #marinescience

Every day is a great day when it’s spent with your bench bestie! 🤗👯‍♀️🥼 #stem #lablife #gradschool #scientist #phdlife

How many cancer cells can ONE immune cell kill? 👀 What you’re seeing here is called serial killing - one immune cell eliminating multiple cancer cells, one after another. Meet NK cells (natural killer cells): part of your innate immune system, constantly scanning for abnormal cells. Unlike T cells, they don’t need prior “training” - they can act immediately. ❔How do they kill cancer cells? NK cells form a tight contact (immunological synapse) and release toxic granules: 1️⃣ Perforin → punches holes in the target cell membrane 2️⃣ Granzymes → enter through those pores and trigger cell death Most commonly, this leads to apoptosis (green signal 🟢) - a controlled, “clean” form of cell death where the cell essentially self-destructs without causing inflammation. But under certain conditions, killing can also result in necrosis (loss of fluorescence) - a more chaotic form of cell death associated with membrane rupture and release of intracellular contents, which can further shape the tumor microenvironment. After one kill, NK cells detach, reload, and move on to the next target - that’s serial killing. ‼️ But cancer doesn’t just sit still… Tumor cells evolve ways to escape: 1️⃣ ↓ MHC I expression → trying to hide from T cells 2️⃣ Expression of inhibitory ligands → turning NK cells “off” 3️⃣ Creating an immunosuppressive microenvironment 4️⃣ Increasing resistance to apoptosis 💡 So how do we use this in cancer therapy? Scientists are learning how to boost this natural killing ability: 1️⃣ Engineering CAR-NK cells to better recognize tumors 2️⃣ Using checkpoint inhibitors to prevent immune shutdown 3️⃣ Enhancing NK cell persistence and activity in tumors 4️⃣ Designing therapies that increase serial killing efficiency The goal? Turn one immune cell into a high-efficiency cancer killer. And sometimes… one cell is enough to take down many. Credits: Backes C. et al. J. Biol. Chem. 2018 #science #scientist #immunology #research #medicine

While I’m on leave, enjoy a revamped version on the video that kicked off my account to a broader audience! Let me know in the comments if you started following me from the first version! Most mosquito colonies we are maintaining are 100% lab colonies and safe for us to blood feed ourselves! This come with a huge time advantage as artificial blood feeding systems require lots of set up and clean up (we use them in our quarantine lab where we house mozzies from overseas or field collections)! Its also the most natural way of feeding them as they can adapt to artificial systems which can affect experiments! We have a couple of volunteers and each person just feeds their dedicated colonies! My body certainly adapted to it and I don’t react strongly with bites disappearing completely in a couple of hours (I do react differently to different species though)! Happy to go into more details of anyone has any questions but have a look around my profile, there are loads of videos about the context of my research, how I deal with itchy bites and how we feed mosquitoes artificially! #Science #research #womeninstem #womeninresearch WomenInScience