Frederik Hammes 🇨🇭🇿🇦
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drinkmic.bsky.social
Frederik Hammes 🇨🇭🇿🇦
@drinkmic.bsky.social
Drinking water microbiologist at Eawag interested in biofilms, building plumbing, Legionella, flow cytometry, microbial ecology, and sci-art.
Co-culturing different colours of bacteria for the microbial art project 🙂🦠🧫
July 15, 2025 at 9:16 AM
My artistic skills need to develop a bit, but I nearly have all the colours needed for an agar art project ! 🦠🧫
July 11, 2025 at 9:38 AM
Red bacteria vs white bacteria 🙂
July 11, 2025 at 9:35 AM
Air sampling gives a nice reminder about about how many fungi we are breathing... 🦠🧫
June 8, 2025 at 5:56 AM
The start of a new agar art project..... 🧫🦠
May 20, 2025 at 9:45 AM
SundayScience is kitchen top beer brewing and water analysis 🙂 🦠 🧫
May 18, 2025 at 10:05 AM
It's not everyday that you find purple colonies... Non-chlorinated tap water on R2A agar 🦠🧫
March 12, 2025 at 7:40 AM
Teaching the next generations of young scientists a practical course about biofilms in building plumbing potable water... these are some fabulous images from their own shower hoses 🦠🧫
February 18, 2025 at 6:29 PM
Fungi growing on used coffee grounds in my office...
January 20, 2025 at 11:31 AM
SaturdayScience: Making the microbes work on the weekend.... Garlic Brioche for dinner 🙂
January 18, 2025 at 5:41 PM
Happy new year everyone!
Day one back in the lab (new year's resolution), testing potable water biofilm staining with crystal violet 🧫🦠
January 6, 2025 at 1:09 PM
SciArt for the day. Winter series. Blue drinking water biofilm.
December 27, 2024 at 5:55 PM
Cooking dinner with a work-appropriate splatter board for inspiration 🙂
December 27, 2024 at 5:18 PM
decided to ditch biorender, so now I have to draw the biofilms myself . Autumn series, 5 species. 🦠🧫
December 6, 2024 at 7:18 PM
Tomorrow is open door day at Eawag and we are doing a community science project, looking at the #biofilm in peoples shower hose, and using that as a platform to discuss #legionella and #drinkingwaterquality. Photo shows diverse biofilms from 12 shower hose 😀
🦠🧫
September 13, 2024 at 4:44 PM
I cannot be the only microbiologist who thinks cleaning a drain is just awesome.... 😂 🦠 🧫
July 12, 2024 at 7:17 PM
We catalogued all 77 known #Legionella species 🙂
Read about it on our LeCo-project blog here:

blog.hslu.ch/leco-en/2024...

The complete list is available on Github (github.com/mgabriell1/L...), where we will keep it updated and hopefully expand in the future!

🦠🧫
May 16, 2024 at 2:18 PM
SaturdayScience: fermented flour experiment, char grilled and stuffed with fresh things 🙂
April 28, 2024 at 3:11 PM
First bread of the new season! The sourdough is wild cherry blossom grown on whole-grain flour.
#SundayScience
April 21, 2024 at 6:56 AM
🦠🧫
Microbiology opinions needed:
A thick white jelly-like biofilm in a toilet tank (cistern). Water is groundwater decalcified with ion-exchange. System is about 4 years in operation. Microscopy shows loads of bacteria.
Any suggestions on a probable cause would be most appreciated!
April 11, 2024 at 7:10 PM
New microbiology office art is up on the wall 🙂
🦠🧫
April 3, 2024 at 2:29 PM
New preprint from our group just dropped in bioRxiv! Alessio @alecava.bsky.social investigated the impact of two common DNA extraction methods on microbial community analysis in general and specifically on Legionella quantification.

🦠🧫
@mgabrielli.bsky.social

biorxiv.org/cgi/content/...
March 20, 2024 at 5:21 PM
"Its impossible to make a comeback if you've never been anywhere..."

Poured 1000 agar plates for our yearly student practicum today. It was a good day 🙂

🦠🧫
February 11, 2024 at 7:04 PM
📣Symposium announcement📣

LEGIONELLA CONTROL IN BUILDINGS

This is a specific call for early career Legionella researchers to join us on 13-14 June at Eawag in Switzerland
- Expert presentations
- Dedicated discussions
- Great networking
- Travel awards available

Link: bit.ly/LeCo_Symp

🧫🦠
February 1, 2024 at 7:58 PM
8 trains and 7 hours later I am in Luxembourg, and eco-friendly me is having a quiet moment with work-life-balance me 😂
December 5, 2023 at 4:51 PM