After someone (Per-Ola Norrby, I think) pointed out that my original list of 100 chemists on Twitter is now down to 99 (there’s 100 in the blog post, but the Twitter list only has 99 members now that one of those listed seems to have left Twitter…), I thought I’d finally get around to doing another list…

Just to head some of you off at the pass, here’s a reminder of what I said last time:

1. This is not a list of the top 100 chemists on Twitter (or the 101-200th best chemtweeps). It’s pretty much random – it’s not based on follower count, h-index or anything else silly like that.

2. Not everyone on this list is necessarily a card-carrying chemist, but they are all people who, more often than not, have something to say on Twitter about chemistry in all its many guises.

3. As with any list, its content is biased by its creator (me in this case). Feel free to leave comments, including the names of your favourite chemtweeps that I have inevitably missed, and to criticize, analyze and deconstruct this list to your heart’s content. Also let me know if any links are wrong/broken.

4. I think I’ve limited this to real people (rather than journals or blogs), but there are lots of other great chemistry Twitter feeds you could follow (also noted in the first list). Don’t forget about Compound Interest too…

[UPDATE: Ah, the perils of lists; you feel bad when you realise who you left out. Other suggestions of people to follow on Twitter after I published this list (will be first on the 3rd list of 100, I promise…): Brian Wagner (@DrummerBoy2112), Olexandr Isayev (@olexandr), Mark Stradiotto (@MarkStradiotto), Warren Piers (@wpiers1), Ragogna Group (@RagognaGroup), Matteo Cavalleri (@physicsteo), John Milligan (@ArsChemia), Jason Dutton (@DuttonChemistry), John Coupland (@JohnNCoupland), John Tucker (@JohnTuckerPhD), Sean Ekins (@collabchem), Scott Reed (@ReadScottReed), John LaMattina (@John_LaMattina), Valerie A. Schmidt (@v_a_schmidt), L.-C. Campeau (@DrLCsquare), Matt Cliffe (@MJCliffe), Adrian Roitberg (@adrian_roitberg), Thorri Gunnlaugsson (@ThorriGunnlaugs), Bill Wuest (@wmwuest)]

The list below is in alphabetical order of Twitter @names and can be found as a list on Twitter here.

Alan Aspuru-Guzik (@A_Aspuru_Guzik)
Theoretical Chemist, Quantum Information Scientist, Professor
 

Adrian Dingle (@adchempages)
Chemistry Educator, Writer & Author | Currently adapting @sam_kean’s Disappearing Spoon | AACT | SCBWI | NASW | ABSW | RSC | ACS | apchemistry | CHEM NOT #stem

Adrian Mulholland (@AdrianMulholla1)
Professor of Chemistry, University of Bristol. Computational chemistry, enzyme catalysis, biomolecular simulation, HPC, antibiotic resistance. Views my own, not RTs

Andy Cooper (@aicooper)
Mostly science related
 

Alison Stoddart (@ali_stoddart)
Chief Editor (@NatRevMater). Dividing time between materials science and malbec. Mostly malbec.

Alice Williamson (@all_isee)
Lecture @sydneychemistry @Sydney_uni and research for @O_S_M. Science Communicator. Host of Up and Atom on @fbiradio #top5under40 #openscience #malaria

Amanda Hardy (@AmandaChemist)
Schools and Colleges Officer @RoyalSocBio @UKBC_SB. Science teacher, Chemist. Love: Biology, Chemistry, all STEM Outreach & hands-on science. Views my own!

Anat Milo (@anatmilo)
Physical Organic Chemist, Catalyst Design & Data Science Enthusiast, Assistant Professor, Ben Gurion University

Anna Slater (@AnnaGSlater)
Royal Society-EPSRC Dorothy Hodgkin Fellow @livuni anachronistically existing before my time (1st Dec). Furiously happy, occasionally happily furious.

Anne McNeil (@AnneJMcNeil)
U. Michigan. I’m a mom, scientist, and educator who is most happy doing anything with my kids, outside, reading, or learning something new.

Ivan Aprahamian (@aprahamian)
Chemistry Professor at Dartmouth College
 

Enda Bergin (@BerginEnda)
Chemist and Senior Editor @NatureComms. All views my own. But they will mostly be about science, so don’t get too excited.

Cafer T. Yavuz (@caferyavuz)
Assoc. Prof. of Chemistry @EEWS_KAIST capturing CO2 with @PorousPolymers. Board Member @Chem_CP. Assoc. Editor at @RSC_Adv. ⛳️🚀

Catherine Goodman (@cate_goodman)
Scientific Editor at JBC. Interested in biological chemistry, science communication, reading, singing, adventures and cats. Opinions my own.

Cathleen Crudden (@cathleencrudden)
researcher, scientist, chemist, mother, daughter, swimmer, tree hugger
 

Celia Arnaud (@celiaarnaud)
A science writer with broad interests in science, arts, and culture.
 

Malika Jeffries-El (@Chem_Diva)
Chemist, World traveler, Steelers fan, Cyclone, Crossfitter and Diva
 

Chem Mouse (@ChemMouse)
Crazy British cat lady and chemistry prof. Loves music, food and family.
 

Christine Le (@christine_m_le)
organic chemist, advocate for #womeninSTEM, teacher, foodie, @Forbes 2015 #30under30; tweets about life in the lab & occasional food pics, views my own

Jess Holmes (@come_in_burned)
I’m supramolecular! Chemist. PhD abd. Teaching fellow at Unimelb. Education enthusiast. I value science and compassion. Views my own.

Corey Stephenson (@crjsteph)
Professor of Chemistry, University of Michigan
 

Dana Baum (@dabaum77)
Chem prof doing fun stuff with DNA. Cat owner & pop culture/TV/social media junkie who enjoys running, cooking, & trips to Hawaii. My tweets are my own.

Dan Singleton (@dasingleton)
Organic Chemistry Professor Texas A&M Dynamic Effects in Ordinary Reactions

Ali Tavassoli (@DrAliTavassoli)
Professor of Chemical Biology
 

Maggie Hardy (@DrMaggieHardy)
Chemistry @IMBatUQ & @QAAFI, wife, mother. On the hunt for new ion channel chemistries in venoms. Evidence-based. #Equity #Scicomm #612CC There will be spiders.

HartreeFocker (@edsherer)
Predictive sciences for Process & Analytical Chemistry at Merck; firefighter; Chair COMP Division of the ACS; MN alum

Ellen Sletten (@EllenSletten)
Assistant Professor, UCLA Department of Chemistry and Biochemistry
 

Euan Kay (@euanrkay)
Lecturer in Chemistry @univofstandrews. Research interests include supramolecular chem, nanomaterials and molecular machines.

Karen Faulds (@FauldsKaren)
Professor of Chemistry at University of Strathclyde- Interested in spectroscopy, SERS for bioanalytical applications and all things nano!

Ross Forgan (@forganross)
A whisky drinking, coast-to-coast commuting old bore masquerading as a young chemistry academic at @GlasgowUni on a @royalsociety URF. MOFs and stuff.

John Fossey (@fosseyjohn)
Chemistry lecturer, father of three, items posted are in a personal capacity
 

Frances Arnold (@francesarnold)
Innovation by evolution
 

Laura Gagliardi (@gagliardi8)
(No Twitter bio, but here’s a link to Gagliardi’s faculty page)
 

J. J. Gassensmith (@Gassensmith)
Chemist, professor, and technophile
 

Gemma-Louise Davies (@GemmaLouDavies)
IAS Global Research Fellow, Department of Chemistry
 

Fernando (@gomobel)
Chemistry ⋅ Science Communication Currently at @chemistryworld, @aragonradio and @rutaciencia_tv Views are my own 😉

Helen Willcock (@helen_willcock)
Polymer chemist.
 

Debbie Gale Mitchell (@heydebigale)
Chemist, spectroscopist, mother, Assistant Teaching Professor of Chemistry at University of Denver. (Tweets are my own).

Holly Gaede (@hollygaede)
Vocation: Chemistry Professor Avocation: Football Fan
 

Julia Howitt (@howitt_julia)
Applying environmental and analytical chemistry from the alps to the ocean. Charles Sturt Uni. Opinions my own.

Ian Tonks (@ianatonks)
Assist Prof of Chem @ U Minnesota. Runner. Lover of Organometallics, safety, music, backpacking and long car rides.

James Batteas (@jamesbatteas)
Professor of Chemistry Texas A&M University – Research in Nanotechnology – Yep, it’s all about the small things… – All views expressed are my own.

Jan Jensen (@janhjensen)
Computational chemist at the University of Copenhagen
 

Kim Jelfs (@JelfsCompChem)
Royal Society University Research Fellow in Computational Supramolecular Materials Chemistry at Imperial College London. Views own.

Jenna Franke (@jennafranke)
Chicago native ⌬ Enjoys pretty colors chemistry, singing, & the great outdoors ⌬ 3rd year chemical biology Ph.D. student at UC Berkeley, Northwestern alum! ⌬

Jenny Laaser (@jennylaaser)
Asst Prof at Pitt Chemistry; former AAAS Mass Media Fellow. Chemistry, chemsafety, scicomm, and nerdery. Tweets my own.

Jes Sherman (@jes_sherman)
science. lasers. super kvlt metal. powerlifting. cats. nerd culture. invisible disability awareness. endless novelty seeking. transhumanism.

William L. Jorgensen (@JorgensenWL)
Professor of Chemistry – Yale University Editor of JCTC
 

Joseph DeSimone (@Joseph_DeSimone)
UNC-CH, NC State; Founder: @Carbon, BlueCurrent, Liquidia Technologies, Bioabsorbable Vascular Solutions, Micell Technologies La vita è bella

Julia Kalow (@JuliaKalow)
reader, eater, chemist
 

Julien Nicolas (@julnicolas)
Director of Research @CNRS @u_psud @umr8612. Associate Editor @ChemMater, Adv. Board Member @PolymChem. Dad of 1. #Polymer #chemistry & #Nanomedicine.

Prashant Kamat (@KamatlabND)
Prof. Kamat @ Researchers @NotreDame interested #photovoltaics #solar energy #nanomaterials #environmental #renewables and #publications & #peerreview process

Karl Gademann (@KarlGademann)
Synthetiker and Organiker. Chemistry professor at the University of Zurich. Interested in how natural products influence our world and change how we live.

Katherine Mirica (@KMirica)
Assistant Professor of Chemistry at Dartmouth College
 

Matt Gibson (@LabGibson)
@warwickchem @warwickmed Addressing healthcare challenges with biomaterials science. Infectious disease, tissue/cell storage, (glycoscience, ice and polymers)

Anna Ahveninen (@Lady_Beaker)
PhD student in inorganic chemistry at the University of Melbourne. Aspires to be a Real Scientist.

Lars Öhrström (@Larsohrstrom)
Chemist, Chem. Eng., Prof. of Inorg. Chem,, popular science author, IUPAC div II, åsikter and opinions sont les miens, På svenska, En français, In English

Laura van Laeren (@lauravlaeren)
Chemistry PhD candidate at SU. Catholic. Always writing something. Sauvignon Blanc addict. Currently thesising, ranting may occur. (previously @laurajane0103)

Luke Gamon (@lgamon)
Endeavour Postdoc Fellow at @Uni_Copenhagen | @SciFinder #FutureLeaders16 Alumni | Former chemistry PhD @unimelb/@Bio21Institute | SciComm, Biotech & Innovation

Aron (@lonepair)
Virtual chemist / #おたく / Professor in Materials Design at @imperialcollege / #openscience

Matthias Lein (@m_onlein)
Either night or the Prussians will come. theoretical chemist, father, geek – possibly not in this order

Martin Stoermer (@MartinStoermer)
PhD in Organic Chemistry. Organic and Medicinal Chemist. May contain traces of football. http://orcid.org/0000-0003-3445

Matthew (@MCeeP)
I’m a biochemist who spends his time blogging and cartooning @ErrantScience about my adventures in #PostDoc research. I also write a column for @LaboratoryNews

Melissae Fellet (@mfellet)
Freelance science writer interested in chemistry, materials science, science policy, engineering. Views my own.

Michelle Francl (@MichelleFrancl)
Chemist, writer, professor, mother, wife, blogger
 

Matt Davenport (@MrMattDavenport)
Reporter & multimedia producer for @cenmag. Views are my own. Oxford commas courtesy of my employer’s style guide.

Nadine Borduas (@nadineborduas)
French Canadian postdoc with @krismcneill, studying the #atmoschem of clouds while #RealTimeChem-ing on the ski slopes with a soft spot for African elephants

Nathan Brown (@nathanbroon)
#Scientist @ICR_London • #Scot • #Author • #Coder • #CompChem • #Chemist • #DataScience • #BigData • @Molomics • Fiancé is the Legoman • Tweets My Opinion

Neysa Nevins (@neysanev)
Computational chemist, GSK Fellow | I meditate walking between meetings.
 

Nicola Gaston (@nicgaston)
takes enormous delight in very small things | féministe ou la ferme | will always run for the bus | going for a Burton… | nolite te bastardes carborundorum

Nina Notman (@ninanotman)
Freelance science writer and editor specialising in chemistry
 

Timothy (@NotHF)
Organic chemistry Ph.D. candidate who works on Au clusters.
 

Julia Winter (@OChemJulie)
Creating mobile technology for higher ed science. 20+ years in classroom. Have my own Julie/Julia thing going on. Founder @LearnAlchemie http://www.alchem.ie

Omar Farha (@omarfarha5)
(No Twitter bio, but here’s a link to Farha’s faculty page)
 

Philippa Matthews (@OrangePip86)
Scicomm and singing | @RoySocChem | @fairhavensinger | @sspiritsingers | Also I knit things | Views my own

Alex Spokoyny (@organomimetic)
Chemist and whiskey aficionado.
 

Miranda Paley (@paleymir)
Trained as a chemical biologist. Loving learning other areas of chem everyday as Managing Editor of @acscentsci. Views my own.

Paolo Melchiorre (@Pamelck)
Husband to (@LornaPiazzi), Dad, Research Professor (@ICIQchem), Group Leader (@MelchiorreGroup) – Uses Light to Make Chiral Molecules / Tweets my Views

Philip Ball (@philipcball)
This is me. On a good day. I write mostly about science.
 

Sarah Thomas (@PittaGirl)
Senior International Development Manager at the Royal Society of Chemistry, and world birder, especially pittas.

Dave Adams (@prof_djadams)
All views are my own!
 

SJ Elliot (@Prof_SJE)
protein electrochemistry, redox enzymology, and science pedantry at a Hub University. Once an English major. (Once). Keep Calm & Carry Electrons

Dave Leigh (@ProfDaveLeigh)
Royal Society Research Professor & Sir Samuel Hall Chair of Chemistry, University of Manchester, UK. european first, british second. molecules. machines. magic.

Peter Kenny (@pwk2013)
Scientist, nomad, agnostic, heretic, slayer of soucouyants (and metrics), aspiring citizen of the world

Rissa Sorensen-Unruh (@RissaChem)
Intro Chem, Gen Chem, & Organic Chem Prof. Chem Ed Researcher. Statistics PhD student. Human being in my own right. Lover of oxford commas. Tweets = Personal.

Suzanne Jansze (@S_Jansze)
Love for chemistry/science/research, playing the saxophone, music in general and other interesting stuff.

Sarah Reisman (@sarah_reisman)
Professor of Chemistry, California Institute Technology
 

Sarah Cady (@sarahdcady)
I love giant magnets.
 

Sara Skrabalak (@SaraSkrabalak)
Chemistry Professor at Indiana University – Bloomington. All views expressed are my own.

Seb Spain (@sebspain)
Lecturer in Polymer Chemistry @sheffielduni. Polymer chemist, guitarist. Opinions my own.

Steve Goldup (@sgoldup)
I’m an Associate Professor and URF at the University of Southampton. All views my own.

Scott K. Silverman (@sksilverman)
Chemistry prof at University of Illinois at Urbana-Champaign. DNA catalysts. I try to compete as a 10k/5k runner, but others are faster. Penguins are great!

Sarah Zingales (@SKZingales)
Chemist, Professor, Skeptic, Vegetarian, Ballerina, Gamer, Wine Snob, and Science Enthusiast #50BookPledge #RealTimeChem #WarEagle #GoBlue

Luis M. Campos (@soyluiscampos)
Assistant Professor of Chemistry Columbia University. Born in Mexico. American Citizen. Donald Trump is not my President.

Thomas D. Bennett (@ThomasDBennett)
Expatriate northern materials chemist in Cambridge. Views are my own, not yours.

Christophe Thomas (@ThomasPolymer)
Professor, @ChimieParisTech, @CNRS, @psl_univ, https://www.researchgate.net/profile/Christophe_Thomas, http://loop.frontiersin.org/people/105741/impact

Timothy Easun (@TimEasun)
Supramolecular photochemist, time-resolved spectroscopist, occasional twitterer. @ChemistryCU as a @royalsociety URF. MOFs etc.

Venkat Viswanathan (@venkvis)
Asst. Professor @CarnegieMellon University, Advanced Batteries, Electrochemical Devices

Vibhuti Patel (@VibhutiJPatel)
Science geek, BSc/PhD from @warwickuni, lover of all things arty-farty, hater of food waste. British by birth, Indian by heritage, European by feeling.

Victoria Richards (@victoriajrich)
Inorganic and materials chemist. Senior Editor for @NatureComms. Views are my own.