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Marcelo D. Polêto

@mdpoleto.bsky.social
746 followers 425 following 283 posts

Computational Biochemist @ Universidade Federal de Viçosa (UFV) | Molecular simulations | Drude Polarizable FF | Enzyme engineering | Sustainability ♻️. Trying to grow my own agroforestry system 🌳🫒. he/him 🇧🇷 mdpoleto.github.io

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Marcelo D. Polêto @mdpoleto.bsky.social · 4h
@down.blue
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Marcelo D. Polêto @mdpoleto.bsky.social · 4h
@down.blue
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Beatriz GUARANI KAIOWÁ @beatrizdiniz.bsky.social · 09/10/2026
Gentes, olha só: Se Flávio vence, você perde
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Joe Greener @jgreener64.bsky.social · 30/09/2026
I gave a teaching lecture on molecular dynamics this morning. If anyone is interested in the slides they are at docs.google.com/presentation....
docs.google.com
LJC Summer School lecture
Molecular Dynamics Joe Greener MRC Laboratory of Molecular Biology LJC Summer School - 30/09/26
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David K Smith @professor-dave.bsky.social · 28/09/2026
As part of our decolonisation work @chemistryatyork.bsky.social, I have created 25 touchstone global chemical stories, each linked to a key point in our curriculum. 13 'Chemical Histories' and 12 'Scientists'. Over the coming weeks, I will share some as 'quote posts' of this, so they can be found.
DECOLONISING CHEMISTRY

PACKAGE OF MATERIALS FOR YORK CHEMISTRY UNDERGRADUATES

Global Chemical Histories

Contents

FIREWORKS and EXPLOSIVES	2
INDIGO	7
MAKING DYES STICK – MORDANTS	11
CEMENT – BUILDING CIVILISATIONS	15
PERFUMERY	18
MINERAL ACIDS (and ‘ALKALI’)	22
RUBBER	27
PAPERMAKING	31
ANALYTICAL CHEMISTRY – STANDARDS and UNITS	34
GOLD PLATING	36
SURFACTANTS IN CLEANING	39
LUBRICATION TECHNOLOGY	41
THE HISTORY OF MEDICINE	43

DECOLONISING CHEMISTRY

PACKAGE OF MATERIALS FOR YORK CHEMISTRY UNDERGRADUATES

Global Scientists

Contents

GEORGE WASHINGTON CARVER	2
HAR GOBIND KHORANA	7
TU YOUYOU	11
C. V. RAMAN	14
ALICE BALL	19
AP DE SILVA	23
TAKAMINE JŌKICHI	27
BERTRAM OLIVER FRASER-REID	32
MARIE MAYNARD DALY	35
OSAMU SHIMOMURA	39
PRAFULLA CHANDRA RAY	42
MARY ELLIOTT HILL (& CARL McCLELLAN HILL)	46
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Sergey Ovchinnikov @sokrypton.org · 14/09/2026
Finally a more intuitaive way to learn pLDDT/pAE? 😎 sokrypton.github.io/protein_figh... (Character idea from @hannes-stark.bsky.social & Alex Waldherr)
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Marcelo D. Polêto @mdpoleto.bsky.social · 14/09/2026
This is, hands down, the best pedagogical resource to teach protein denaturation. sokrypton.github.io/protein_figh... Absolutely amazing, @sokrypton.org 👏👏👏
sokrypton.github.io
Protein Fighter
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Stephen Moran. @moranstephen1000.bsky.social · 30/08/2026
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Jo Wolff @jowolff.bsky.social · 26/08/2026
Grete Hermann (1901-1984), brilliant philosopher of maths and quantum mechanics and first student of Emily Noether. Hermann was co-founder of the journal Ratio, and turned to political philosophy later in her career, writing in 1947:
Whoever lives in the Third Reich or otherwise comes to terms with it, but isolates themselves from the political events around them in order to occupy themselves with other, in themselves beautiful and worthy subjects, is lending their name and their work to this system. There is no neutrality towards the legal and cultural decline in public life. Whoever does not oppose it is complicit in it. Whatever beautiful and good things they may create otherwise are devalued by this participation in the social injustice with which it is burdened.
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Kresten Lindorff-Larsen @lindorfflarsen.bsky.social · 25/08/2026
Predicting RNA structure is hard, and predicting RNA dynamics is even harder We combined extensive NMR data with MD simulations to study the dynamics of RNA tetraloops By projecting onto the universe of tetraloop structures, we show how NMR+MD captures structures not seen by prediction methods
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Alma Preta Jornalismo @alma-preta.bsky.social · 24/08/2026
Candidata da UP à Presidência apresenta à Alma Preta propostas para trabalho e renda e critica conciliação com setores econômicos almapreta.com.br/sessao/polit...
almapreta.com.br
'Falar de soberania e não fazer reforma agrária não faz sentido', diz Samara Martins
Em entrevista, Samara Martins fala sobre socialismo, trabalho, reforma agrária e confronto com setores econômicos nas eleições de 2026.
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Erahsto Felício @erahsfeliz.bsky.social · 22/08/2026
Coisas para não ter medo: 1. Papel 2. Cerca 3. Burguesia
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Marcelo D. Polêto @mdpoleto.bsky.social · 19/08/2026
É sempre gratificante saber que nossos ex-alunos saem tão bem formados da UFV! 😁 Essa extensão tem sido o nosso grande desafio por aqui tb. Pelo q vejo, é raro achar quem topa mexer nas engrenagens dos sistemas. A maioria só quer "terminar o semestre". Torcendo pros seus planos se materializarem!
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Marcelo D. Polêto @mdpoleto.bsky.social · 19/08/2026
A ideia é excelente. Foi exatamente oq aconteceu pra gerar o doce de leite mais gostoso do Brasil: parceria entre a Universidade Federal de Viçosa (UFV), os produtores locais, e o Laticínios Viçosa. Qualquer negócio que se aproxime das universidades brasileiras saem ganhando.
Texto com os dizeres "O melhor do Brasil" acima de 3 latas de Doce de Leite Viçosa
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Atila Iamarino @atila.bsky.social · 19/08/2026
Tem um pessoal dolorido com o fim do vídeo de hoje. Mas a Dilma tinha razão.
youtu.be
O Fim da Globalização
YouTube video by Atila Iamarino
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Sergey Ovchinnikov @sokrypton.org · 15/08/2026
getting close to recreating Jane Richardson's style 😎
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Marcelo D. Polêto @mdpoleto.bsky.social · 15/08/2026
É o ônus e o bônus da liberdade de cátedra. A gnt minimiza mto as duas partes. E hj em dia, com os alunos filmando/gravando tudo, tirando foto de tudo, morro de medo do tipo de material q pode aparecer de mim dps 👀
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FX Coudert @nanoporous.net · 30/07/2026
After 8 years as an editor for Communications Chemistry @commschem.nature.com, I am retiring today. It's been great seeing the journal grow and evolve since its launch in 2018, and I absolutely recommend it as a venue for publishing your work! Serious journal, serious team, loved working with them.
static.klipy.com
8th Birthday Eighth Birthday
ALT: 8th Birthday Eighth Birthday
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Kay Severin @kay-severin.bsky.social · 13/08/2026
Faculty position in our institute @EPFL: www.epfl.ch/about/workin...
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Kelly @broadwaybabyto.bsky.social · 09/08/2026
Leaked video from an ICE camp details people suffering from tuberculosis, a never ending “flu” & conjunctivitis. ICE enforcement is a mass disabling event. These are concentration camps. They’re a breeding ground for disease which will lead to preventable suffering, disability and death.
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noam @noamchompers.bsky.social · 08/08/2026
many professors are calling it 'the least surprising result of all time'
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Conexão Planeta @conexaoplaneta.bsky.social · 04/08/2026
Projeto tem ações planejadas para todos os #biomas do país. Um dos objetivos é a geração de benefícios diretos a 150 mil pessoas, das quais pelo menos 35% serão #mulheres
conexaoplaneta.com.br
Iniciativa de organizações ambientais irá restaurar 600 mil hectares de vegetação nativa no Brasil
Além da recuperação, o projeto Restaura Biomas prevê a promoção de práticas sustentáveis em 1,2 milhão de hectares, redução do equivalente a 34 milhões de toneladas de dióxido de carbono (CO₂e) e gera...
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Adriana @adrir.bsky.social · 01/08/2026
É assim na fila sopa, as pessoas chegam com suas panelinhas vazias e recebem a sopa e o pão, essa foi a fila de ontem Mas a sopa de hoje depende de ajuda que ainda vai chegar🥹 Nenhuma ação solidária se mantém sem ajuda e essa nao é diferente. Ajude urgente 🙏 Pix adriana.rc.drikaa@gmail.com
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Marcelo D. Polêto @mdpoleto.bsky.social · 31/07/2026
It is unbelievably satisfying to see concrete data backing up a feeling about LLMs and the "no stopping AI train".
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Marcelo D. Polêto @mdpoleto.bsky.social · 24/07/2026
Que notícia boa! Tem que comemorar!!! 🥳
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Marcelo D. Polêto @mdpoleto.bsky.social · 09/07/2026
I've been trying to get my proposal reviewed there for the longest time and I'm still waiting for a response. Not sure what is going on there these days...
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Marcelo D. Polêto @mdpoleto.bsky.social · 02/07/2026
Bota 4 times da série B do Brasileirão e ficava no msm nível
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Kresten Lindorff-Larsen @lindorfflarsen.bsky.social · 23/06/2026
Come join the new Novo Nordisk Foundation Center for Protein Design as a group leader Cool science in a great scientific environment in wonderful and very family friendly Copenhagen There are two positions that can either be at TT assistant or associate prof level employment.ku.dk/tenure-track...
employment.ku.dk
Tenure-track Assistant Professor or Associate Professor of De novo Protein Design
The Novo Nordisk Foundation Center for Protein Design at the University of Copenhagen seeks to appoint two new group leaders in de novo protein design from 1 February 2027 or as soon as possible thereafter. These positions will be at the Assistant or Associate Professor level and associated with the Department of Biology (Faculty of Science) or the Department of Drug Design and Pharmacology (Faculty of Health and Medical Sciences).
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Sarah Shay @sarahshay.com · 14/06/2026
My biggest editing client has officially replaced me with an LLM, meaning I am now functionally unemployed. If any of you need a proofreader or copy editor and value having a human being who can tell right from wrong doing the job, let me know?
sarahshay.com
Copy Editing and Proofreading – Sarah Shay
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Marcelo D. Polêto @mdpoleto.bsky.social · 13/06/2026
Acho que ele apostou Marrocos
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𝓒𝓵𝓪𝓻𝓲𝓼𝓼𝓪 𝓟𝓪𝓲𝓿𝓪 🦢✨ @clarissapaiva.bsky.social · 10/06/2026
Lembrando que tem TELEFONE pra ligar, WhatsApp e e-mail e se vc tiver animado pode até enviar cartas Gabinete: Senado Federal Anexo 2 Ala Affonso Arinos Gabinete 10 Telefones: (61) 3303-6717 / 6720 E-mail: sen.davialcolumbre@senado.leg.br
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Kit Yates @kityates.bsky.social · 10/06/2026
Can only assume the The Royal Society, by its inaction, is condoning the actions in Belfast incited by Elon Musk (one of their fellows). Why will the UK's premier Scientific Institution not stand up for itself and for its values?
telegraph.co.uk
Belfast attack live: Labour accuses Musk of fuelling riots
Labour has accused Elon Musk of fuelling protests in Belfast, which broke out after a Sudanese asylum seeker was charged with attempted murder.
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Marcelo D. Polêto @mdpoleto.bsky.social · 08/06/2026
Hoping the right position comes quickly to you! 🤞
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Marcelo D. Polêto @mdpoleto.bsky.social · 08/06/2026
This is absolutely fantastic! I'm truly truly amazed by the it's structure and transparency. I'm for sure using it as a big source of inspiration!
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Marcelo D. Polêto @mdpoleto.bsky.social · 08/06/2026
That's an excellent idea. I'll DM my email to you. Thanks in advance!
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Marcelo D. Polêto @mdpoleto.bsky.social · 08/06/2026
Alright Internet, I need advice. As a jr PI starting my own research group on #compchem, I want to write a "Lab Guide" to define what students should expect from me, and what I expect from them. The idea is to structure and materialize the implicit and unspoken "lab rules" Suggestions? #chemsky
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Marcelo D. Polêto @mdpoleto.bsky.social · 06/06/2026
Super important and global phenomenon. If anything, offloading the exercise of thinking to algorithms is probably the way machines enslave humanity.
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Erahsto Felício @erahsfeliz.bsky.social · 04/06/2026
Pegar esse fundamento aqui
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Marcelo D. Polêto @mdpoleto.bsky.social · 02/06/2026
"Comer macarrão instantâneo é 400x mais barato do que refeição balanceada e saudável", diz CEO da Nissin Lamen. Coisa ridícula...
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Marcelo D. Polêto @mdpoleto.bsky.social · 28/05/2026
Absolutely "molecular dynamics simulations".
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Alexandrova Lab @alexandrovalab.bsky.social · 23/05/2026
👀 Out now in @chemicalscience.rsc.org! With @shafaatlab.bsky.social, we study electronic structure and magnetic coupling in a protein model of CODH, revealing covalency changes across states of the Ni–Fe–S cluster: 👉 doi.org/10.1039/D6SC00023A #compchem #chemsky #compchemsky @uclacb.bsky.social
doi.org
A protein-based model of carbon monoxide dehydrogenase exhibits tunable covalency across cluster oxidation and ligand-bound states
The nickel-containing carbon monoxide dehydrogenase (CODH) uses a unique heterometallic [NiFe4S4] cluster active site, called the C-cluster, to catalyze the reversible reduction of carbon dioxide (CO2...
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MDAnalysis @mdanalysis.bsky.social · 01/05/2026
Congratulations to all three of the #GSoC contributors who were accepted to work with MDAnalysis and @westpasoftware.bsky.social mentors this year! 👀 🔜 🤩 Keep an eye out for a blog post coming soon where you can learn more about each of the contributors and their projects.
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Marcelo D. Polêto @mdpoleto.bsky.social · 30/04/2026
Congratulations!! 🥳🥳
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Jan H. Jensen @janhjensen.bsky.social · 20/04/2026
Curated digital datasets of acid dissociation constants in dipolar aprotic solvents | ChemRxiv #compchem chemrxiv.org/doi/full/10....
chemrxiv.org
Curated digital datasets of acid dissociation constants in dipolar aprotic solvents | ChemRxiv
The acid dissociation constant is a key thermodynamic property, but large compilations of highly trustworthy data in non-aqueous solvents are scarce. This work presents a newly-digitized compilation, with corrections, of pK a data published originally by ...
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Marcelo D. Polêto @mdpoleto.bsky.social · 18/04/2026
Ok, but.... Δ‡G feels wrong 😅
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Marcelo D. Polêto @mdpoleto.bsky.social · 16/04/2026
Obrigado! Das universidades que conheci, considero tranquilamente a UFV a mais bonita!
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Marcelo D. Polêto @mdpoleto.bsky.social · 16/04/2026
Well, it's official so I can finally say it: I'm joining the Dept. of Biochemistry and Molecular Biology at my alma mater, Universidade Federal de Viçosa❤️ I'm truly happy and honored to be part of UFV again, now empowering the next generation of Brazilian biochemists 🇧🇷👨‍🔬 More info soon! #chemsky
Picture of the campus Viçosa of the Universidade Federal de Viçosa
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Marcelo D. Polêto @mdpoleto.bsky.social · 13/04/2026
Yet another reason why the current state of AI is slowly killing me: I can't access a single paper now without proving that I'm not a LLM gathering references for their hallucinations 😩 #chemsky
A screenshot of a CAPTCHA to access ACS journals.
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Marcelo D. Polêto @mdpoleto.bsky.social · 12/04/2026
No ES tem um estudo grande rodando sobre o status do Rio Doce após os crimes da Vale. Talvez eles sejam coordenados pela UFES? Vale a pena checar. A FAPESP (em SP) tem bastante recurso, vale a pena checar tb. Tb sei q o pessoal da Embrapa ta começando a monitorar PFOS nacionalmente.
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Nabil Bonduki @nabilbonduki.bsky.social · 09/04/2026
Hoje o UOL expôs exatamente o que venho denunciando há meses em todas as sessões da CPI: a Prefeitura NÃO tem o mínimo controle sobre as unidades de Habitação de Interesse Social que está incentivando. +
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