#molecules — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #molecules, aggregated by home.social.
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👃🧬 Scientists are using cryo-electron #microscopy to visualize how scent #molecules bind to receptors in the nose.
The structural details help explain how the #brain distinguishes between thousands of different odors based on molecular shape and #chemistry. The findings provide a clearer understanding of the biological process that allows us to experience the world through smell.
👉 https://www.chemistryworld.com/features/the-molecular-mystery-of-how-we-smell/4023405.article
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👃🧬 Scientists are using cryo-electron #microscopy to visualize how scent #molecules bind to receptors in the nose.
The structural details help explain how the #brain distinguishes between thousands of different odors based on molecular shape and #chemistry. The findings provide a clearer understanding of the biological process that allows us to experience the world through smell.
👉 https://www.chemistryworld.com/features/the-molecular-mystery-of-how-we-smell/4023405.article
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👃🧬 Scientists are using cryo-electron #microscopy to visualize how scent #molecules bind to receptors in the nose.
The structural details help explain how the #brain distinguishes between thousands of different odors based on molecular shape and #chemistry. The findings provide a clearer understanding of the biological process that allows us to experience the world through smell.
👉 https://www.chemistryworld.com/features/the-molecular-mystery-of-how-we-smell/4023405.article
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👃🧬 Scientists are using cryo-electron #microscopy to visualize how scent #molecules bind to receptors in the nose.
The structural details help explain how the #brain distinguishes between thousands of different odors based on molecular shape and #chemistry. The findings provide a clearer understanding of the biological process that allows us to experience the world through smell.
👉 https://www.chemistryworld.com/features/the-molecular-mystery-of-how-we-smell/4023405.article
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👃🧬 Scientists are using cryo-electron #microscopy to visualize how scent #molecules bind to receptors in the nose.
The structural details help explain how the #brain distinguishes between thousands of different odors based on molecular shape and #chemistry. The findings provide a clearer understanding of the biological process that allows us to experience the world through smell.
👉 https://www.chemistryworld.com/features/the-molecular-mystery-of-how-we-smell/4023405.article
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I’m carbon 🧪
I don’t like being alone, I need to form bonds, and my favorite way is with four hydrogens 🤝
That’s how I complete my life structure—stable, satisfied, and always forming connections in a perfect 3D shape called tetrahedral geometry 🤯
In chemistry, I don’t just exist… I bond to survive 🔬
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Sciencepost: #Mars était censée être morte depuis 3,7 milliards d'années : #Curiosity vient de trouver dans la roche une molécule qui n'a rien à y faire
Trois #molécules. C’est tout ce qu’il a fallu pour faire vaciller trente ans de certitudes sur #Mars
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Reactions "An Illustrated Exploration of Elements, Molecules, and Change in the Universe" Sale: $19.99 to $1.99 by Theodore Gray Rating: 4.8/5 (1,075 Reviews) #chemistry #science #molecules #elements #sciencebooks #popularscience #visualscience #education #books #booksky
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Le secret des cellules baladeuses
Par Kheira Bettayeb
https://lejournal.cnrs.fr/articles/le-secret-des-cellules-baladeuses
#science #vivant #biologie #cellules #cnrs #molécules #cancer #mobilité -
Le secret des cellules baladeuses
Par Kheira Bettayeb
https://lejournal.cnrs.fr/articles/le-secret-des-cellules-baladeuses
#science #vivant #biologie #cellules #cnrs #molécules #cancer #mobilité -
Le secret des cellules baladeuses
Par Kheira Bettayeb
https://lejournal.cnrs.fr/articles/le-secret-des-cellules-baladeuses
#science #vivant #biologie #cellules #cnrs #molécules #cancer #mobilité -
Le secret des cellules baladeuses
Par Kheira Bettayeb
https://lejournal.cnrs.fr/articles/le-secret-des-cellules-baladeuses
#science #vivant #biologie #cellules #cnrs #molécules #cancer #mobilité -
Le secret des cellules baladeuses
Par Kheira Bettayeb
https://lejournal.cnrs.fr/articles/le-secret-des-cellules-baladeuses
#science #vivant #biologie #cellules #cnrs #molécules #cancer #mobilité -
Here is a problem that has been quietly gnawing at astronomers for decades.
The standard approach to detecting #life on other worlds involves scanning #exoplanet #atmospheres for #oxygen, #methane, and #ozone, whose presence is difficult to explain without #biology.
It's a clever idea, but it carries a hidden flaw. That entire shopping list was written by studying Earth. It is, inevitably, a search for life like us.
The list of ways that #chemistry alone can accidentally mimic these #biosignature gases is growing faster than the list of new ways to detect life.
Each new false positive scenario demands even more information about the #planet to rule it out, and there is a genuine question about whether that information can ever be gathered exhaustively.
But there is a solution.
#Assembly theory doesn't ask what #molecules are present in an #atmosphere. Instead, it asks how hard they were to make.
Every molecule can be assigned an assembly index, a minimum number of construction steps required to build it from basic #chemical building blocks.
Simple molecules are easy to assemble by chance, but truly complex ones, requiring many sequential steps, don't arise without something doing a great deal of deliberate selection.
That something would then be life itself.
#astrobiology #astronomy
https://phys.org/news/2026-03-life.htmlPaper by Walker et al. (2026): https://arxiv.org/abs/2603.11086
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Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.
Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.
Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.
These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.
The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.
#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z -
Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.
Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.
Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.
These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.
The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.
#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z -
Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.
Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.
Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.
These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.
The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.
#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z -
Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.
Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.
Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.
These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.
The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.
#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z -
Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.
Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.
Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.
These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.
The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.
#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z -
"n a study published in Nature Astronomy today, a team of Japanese scientists has confirmed all five nucleobases are present in this pristine asteroid [Ryugu] material.
This means these ingredients for life may have been widespread throughout the Solar System in its early years."
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🔄 Tiny, 45 base long RNA can make copies of itself
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Formic acid #molecules are not two-dimensional as traditionally depicted, but exist as three-dimensional, chiral structures due to constant #quantum zero-point motion that forces atoms out of a flat plane.
#QuantumScience #Chemistry #PhysicalChemistry #Structural Chemistry #sflorg
https://www.sflorg.com/2026/02/qs02202601.html -
Formic acid #molecules are not two-dimensional as traditionally depicted, but exist as three-dimensional, chiral structures due to constant #quantum zero-point motion that forces atoms out of a flat plane.
#QuantumScience #Chemistry #PhysicalChemistry #Structural Chemistry #sflorg
https://www.sflorg.com/2026/02/qs02202601.html -
Formic acid #molecules are not two-dimensional as traditionally depicted, but exist as three-dimensional, chiral structures due to constant #quantum zero-point motion that forces atoms out of a flat plane.
#QuantumScience #Chemistry #PhysicalChemistry #Structural Chemistry #sflorg
https://www.sflorg.com/2026/02/qs02202601.html -
Formic acid #molecules are not two-dimensional as traditionally depicted, but exist as three-dimensional, chiral structures due to constant #quantum zero-point motion that forces atoms out of a flat plane.
#QuantumScience #Chemistry #PhysicalChemistry #Structural Chemistry #sflorg
https://www.sflorg.com/2026/02/qs02202601.html -
19-Feb-2026
New method for housane #synthesis
Chemists synthesise high-tensile ring #molecules through #photocatalysis / Components for #drugDevelopmenthttps://www.eurekalert.org/news-releases/1117117 #science #chemistry
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⛸️❄️ Why does a thin metal blade make it easier to slide on #ice instead of digging in?
From 12th-century bone skates to modern Olympic steel, the secret lies in a strange, disordered layer of #molecules that acts like a #microscopic lubricant.
👉 https://www.theguardian.com/news/2026/feb/13/weatherwatch-science-how-ice-skating-works
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⛸️❄️ Why does a thin metal blade make it easier to slide on #ice instead of digging in?
From 12th-century bone skates to modern Olympic steel, the secret lies in a strange, disordered layer of #molecules that acts like a #microscopic lubricant.
👉 https://www.theguardian.com/news/2026/feb/13/weatherwatch-science-how-ice-skating-works
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⛸️❄️ Why does a thin metal blade make it easier to slide on #ice instead of digging in?
From 12th-century bone skates to modern Olympic steel, the secret lies in a strange, disordered layer of #molecules that acts like a #microscopic lubricant.
👉 https://www.theguardian.com/news/2026/feb/13/weatherwatch-science-how-ice-skating-works
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⛸️❄️ Why does a thin metal blade make it easier to slide on #ice instead of digging in?
From 12th-century bone skates to modern Olympic steel, the secret lies in a strange, disordered layer of #molecules that acts like a #microscopic lubricant.
👉 https://www.theguardian.com/news/2026/feb/13/weatherwatch-science-how-ice-skating-works
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⛸️❄️ Why does a thin metal blade make it easier to slide on #ice instead of digging in?
From 12th-century bone skates to modern Olympic steel, the secret lies in a strange, disordered layer of #molecules that acts like a #microscopic lubricant.
👉 https://www.theguardian.com/news/2026/feb/13/weatherwatch-science-how-ice-skating-works
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What did SPHEREx detect on comet 3I/ATLAS? #science
https://atlas.whatip.xyz/post.php?slug=what-did-spherex-detect-on-comet-3iatlas-science
An interstellar visitor released organic molecules during its close pass NASA’s SPHEREx space telescope
#interstellar #molecules #telescope #spherex -
UK-based #deeptech startup Anzen Industries has secured $2.2 million in pre-seed #funding to advance its cell-free biomanufacturing platform for producing complex chemicals.
The company uses #reusable enzyme reactors and AI-driven design to manufacture high-value #molecules more efficiently than traditional synthesis or fermentation.
Its #technology reduces infrastructure, energy use, and production costs while strengthening global supply chain resilience.
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We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp.
One of these is whether #Earth is the only place that harbours #life.
In the last 30 years, the question of whether the Sun is unique in hosting a planetary system has been resoundingly answered: we now know of thousands of #exoplanets orbiting other #stars.
But can we use telescopes to detect whether any of these distant worlds also harbour life?
A promising method is to analyse the gases present in the #atmospheres of these #planets.
Astonishingly, we can identify #molecules present in the atmospheres of exoplanets.
Quantum mechanics causes each atmospheric chemical to have its own distinct barcode-like pattern, which it leaves on the light passing through it.
By collecting starlight that has been filtered through an #exoplanet’s atmosphere, telescopes can see the barcodes of the molecules making up that atmosphere.
To take advantage of this, the planet needs to #transit – pass in front of – the star from our point of view.
#astronomy #astrobiology
https://theconversation.com/how-astronomers-plan-to-detect-the-signatures-of-alien-life-in-the-atmospheres-of-distant-planets-272821 -
Η επανάσταση στη βιοϊατρική με το BoltzGen https://greekhub.org/i-epanastasi-sti-vioiatriki-me-to-boltzgen/ #addressing #create #debut #diseases #Generative #hardtotreat #MIT #model #molecules #News #scientists #GreekHub
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Researchers from Hanns-Christoph Nägerl's group have produced the world’s first #ultracold #KCs #molecules in their absolute ground state. Starting by mixing clouds of potassium and caesium atoms cooled almost to absolute zero temperature
#MolecularScience #Chemistry #sflorg
https://www.sflorg.com/2025/11/mols11172501.html -
Une équipe de la #NASA, armée du #télescope #spatial James #Webb, annonce la toute première détection de #molécules #précurseurs de la #vie dans la glace d’une #galaxie voisine, le #Grand #Nuage de #Magellan, dont le #méthanol, l’ #éthanol, et même l’ #acide #acétique
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Une équipe de la #NASA, armée du #télescope #spatial James #Webb, annonce la toute première détection de #molécules #précurseurs de la #vie dans la glace d’une #galaxie voisine, le #Grand #Nuage de #Magellan, dont le #méthanol, l’ #éthanol, et même l’ #acide #acétique sciencepost.fr/elles-pourra...
"Elles pourraient inonder l'un... -
#DNA’s hidden power could transform how we make #medicines
#Scientists found that DNA’s #phosphate groups can direct chemical reactions to make the correct mirror-image form of #drug #molecules. This breakthrough simplifies chiral drug production, reducing waste and energy use. Using a new “PS scanning” method, the team pinpointed which DNA parts guide reactions. The approach could revolutionize green chemistry in #pharmaceuticals.
https://www.sciencedaily.com/releases/2025/11/251108083914.htm
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#Lipids are fatty #molecules that play critical roles in cell function, including membrane structure, energy storage and nutrient absorption. Most lipids are made in a cell #organelle called the #endoplasmic reticulum, but specific lipid types are shuttled around to different parts of the cell depending on their purpose.
#Biochemistry #Biomolecular #sflorg
https://www.sflorg.com/2025/10/bchm10162501.html -
We are headed into the season of the Nobel Prize. Announcements of awards will begin on October 6, with the Physics Prize being announced on the 7th. This year, I decided to have some fun in the “fediverse” and try to tease some nuggets out of the wisdom of the crowd.
While crowds are, in fact, not always wise, it is nonetheless fun to use some of the tools of the open social web to prompt […]
https://steve.cooleysekula.net/blog/2025/09/23/fediversing-the-2025-physics-prize/
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Every Molecule Matters by Simon Cotton, 2025
Every Molecule Matters is a successor to the author’s earlier Every Molecule Tells a Story and tells the story of a wide range of molecules.
These range from the familiar odours that enhance the pleasure of eating (and the spices that add piquancy) to the vitamins vital to our survival, as well as the ways in which insects and plants use chemicals to protect themselves.
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📸 Des équipes de notre École ont mis au point une nouvelle technique d’imagerie qui permet de caractériser plusieurs milliers de molécules simultanément et rapidement grâce à une caméra à photon unique.
En savoir plus: https://go.epfl.ch/729eed
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📸 Researchers from our University have developed a new imaging method, based on the use of a single-photon camera, that can characterizes thousands of molecules quickly and simultaneously.
Read more: https://go.epfl.ch/99f8dc
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Researchers at the @European XFEL in #Schenefeld near #Hamburg have been able to directly visualise #quantum fluctuations in complex #molecules for the first time. However, they had to burst the molecule in the process, as they report in #Science magazine
https://nachrichten.idw-online.de/2025/08/07/european-xfel-reveals-quantum-fluctuations-in-complex-molecules -
Are We on the Brink of the First #Climate #War? : Medium
#Kidney #Disease is a #Worldwide #Killer. Treat it that way : Nature
#Molecules From #Space May Have #Sparked #Life on #Earth Billions of Years Ago : Disc Mag
Check our latest #KnowledgeLinks
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Why don't #pandas eat more meat? #Molecules found in #bamboo may be behind their plant-based diet.
#miRNA #regulation #gene_expression #sensing #dopamine
https://phys.org/news/2025-02-dont-pandas-meat-molecules-bamboo.html
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❛❛ #adenine #guanine #cytosine #thymine & #uracil … necessary to build #DNA & #RNA … traces of important organic compounds like xanthine, hypoxanthine, & nicotinic acid (#vitamin B3).
In addition to suggesting that life could exist elsewhere in the #universe, the #molecules found on Bennu raise provocative questions about the #origins of #life on #Earth. ❜❜#Bennu #asteroid was discovered in 1999 & sampled in 2020.
🔗 https://www.Salon.com/2025/01/30/building-blocks-of-life-discovered-on-asteroid-bennu/ 2025 Jan 30
🔗 https://Wikipedia.org/wiki/101955_Bennu -
❛❛ #adenine #guanine #cytosine #thymine & #uracil … necessary to build #DNA & #RNA … traces of important organic compounds like xanthine, hypoxanthine, & nicotinic acid (#vitamin B3).
In addition to suggesting that life could exist elsewhere in the #universe, the #molecules found on Bennu raise provocative questions about the #origins of #life on #Earth. ❜❜#Bennu #asteroid was discovered in 1999 & sampled in 2020.
🔗 https://www.Salon.com/2025/01/30/building-blocks-of-life-discovered-on-asteroid-bennu/ 2025 Jan 30
🔗 https://Wikipedia.org/wiki/101955_Bennu -
❛❛ #adenine #guanine #cytosine #thymine & #uracil … necessary to build #DNA & #RNA … traces of important organic compounds like xanthine, hypoxanthine, & nicotinic acid (#vitamin B3).
In addition to suggesting that life could exist elsewhere in the #universe, the #molecules found on Bennu raise provocative questions about the #origins of #life on #Earth. ❜❜#Bennu #asteroid was discovered in 1999 & sampled in 2020.
🔗 https://www.Salon.com/2025/01/30/building-blocks-of-life-discovered-on-asteroid-bennu/ 2025 Jan 30
🔗 https://Wikipedia.org/wiki/101955_Bennu