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johan elf Profile
johan elf

@johan_elf_

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Joined November 2016
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@TidningenCurie
Tidningen Curie
2 years
Administrationen äter upp forskningen. Debattinlägg av Johan Elf, @uppsalauni , om konsekvenserna av att det administrativa stödet centraliseras: https://t.co/0iViF3cF6K #forskning #fopol #forskom #utbilding
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@johan_elf_
johan elf
2 years
The baby is born! It’s a PA-100! https://t.co/PSxbijoESn
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@johan_elf_
johan elf
2 years
Our work on how E. coli triggers chromosome replication in a narrow range of cell sizes is out in PNAS: https://t.co/0x5FW05r8Z All raw data (3.8Tb) and analysis code needed to regenerate the figures are available at the SciLifeLab data repository: https://t.co/Nfk6qprfEX
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@johan_elf_
johan elf
2 years
Nice work from my PhD student Malin, in collaboration with Gareth Tribello.
@MalinLuking
Malin Lüking
2 years
Happy to share my latest article. I am very grateful to Gareth Tribello, my supervisor @johan_elf_ and co-supervisor David van der Spoel for making it possible!
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@johan_elf_
johan elf
2 years
Glad och tacksam ! 😃
@ScienceAcad_swe
The Royal Swedish Academy of Sciences
2 years
Stort grattis till Akademiledamot Johan Elf! @johan_elf_
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@johan_elf_
johan elf
3 years
See the white toaster on photo to the right !
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@johan_elf_
johan elf
3 years
Sysmex is marketing Astrego’s system for ultra rapid phenotypic Antibiotic Susceptibility Testing for the first time 😊! @uuinnovation @UAC_UU @strategiskaSSF @uppsalauni
@SysmexEurope
SysmexEurope
3 years
If you are curious about urological cancer management like PLND and how to get antibiogram from urine in less than one hour, come explore our latest in Life Science, Point-of-Care and Urinalysis at the #EAU23 𝗰𝗼𝗻𝗴𝗿𝗲𝘀𝘀 in Milan! We'll see you at booth K61! @uroweb
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@johan_elf_
johan elf
3 years
The trick for obtaining fast 3D tracking is not to move any mechanical parts but to switch the z-position using spatial light modulation and electro optical defection in 2D.
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@johan_elf_
johan elf
3 years
We have developed a new type of microscope for 3D tracking of individual fast moving molecules in living cells. The position of the molecule is “triangulated” at the microsecond timescale and the laser-beam follows the molecule using feedback implemented in hardware.
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@johan_elf_
johan elf
3 years
Nice work by Malin Luking in my group !
@MalinLuking
Malin Lüking
3 years
@UU_University @johan_elf_ @JPhysChem You can also read the summary on our lab website that shows the hopping and sliding motions that the TF performs on DNA to ensure fast search and tight scanning of the grooves:
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@MalinLuking
Malin Lüking
3 years
@UU_University @johan_elf_ @JPhysChem You can also read the summary on our lab website that shows the hopping and sliding motions that the TF performs on DNA to ensure fast search and tight scanning of the grooves:
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elflab.icm.uu.se
Adventures with single molecules in E. coli
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@MalinLuking
Malin Lüking
3 years
This year I will finish my PhD @UU_University with @johan_elf_. About time to start the Twitter with my first first-author publication @JPhysChem, where we describe the DNA search process of two conformations of the transcription factor LacI https://t.co/yf0xmeqSX5.
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pubs.acs.org
In a process known as facilitated diffusion, DNA-binding proteins find their target sites by combining three-dimensional diffusion and one-dimensional scanning of the DNA. Following the trade-off...
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@johan_elf_
johan elf
3 years
Our paper on how a significant fraction of bacteria keeps growing many generations at lethal concentrations of antibiotics, and how this contributes to resistance development, is freely available at PNAS
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pnas.org
The rise of antibiotic-resistant bacterial infections poses a global threat. Antibiotic resistance development is generally studied in batch cultur...
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@ludvigsson
Jonas Ludvigsson
3 years
Tack @Harvard för att ni omedelbart erbjudit forskaren en tjänst hos er. Jag har jobbat med henne - hon är suverän. Sverige - vi har gjort självmål. Hur många fler utländska forskare tänker Sverige utvisa? @ottersenolep
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@johan_elf_
johan elf
3 years
We just published a paper about combining phenotypic Antibiotic Susceptibility Testing (AST) with in situ genotyping of individual bacteria. This makes it is possible to do rapid AST on samples with mixed species. https://t.co/pJPTE35EuY
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nature.com
Nature Communications - Rapid antibiotic susceptibility testing (AST) is needed. Here the authors report a method for phenotypic AST at the single cell level, using a microfluidic chip that allows...
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@johan_elf_
johan elf
3 years
I’m very happy about this prize 😊🎉!
@UAC_UU
Uppsala Antibiotic Center
3 years
Big congratulations to @johan_elf_ & @Ozden_Baltekin for receiving the Hjärnäpplet innovation award for their work with the @AstregoDx's #diagnostic system, the fastest yet. A great step forward on the #AMR solutions! Read the story 👇 https://t.co/eCzUwzjrQ7
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@johan_elf_
johan elf
3 years
We are hiring a staff scientist for a permanent position in my research group. The focus is on microbiology and in particular strain construction and libraries of genetically different E. coli. https://t.co/7HnlzUPjv5 Please forward to people that may be interested.
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