Hi floss.social. Just moved in from https://fosstodon.org/@ygor
I'm an #ElectricalEngineer from #Brazil, currently living in #France for many years. I work as a #SoftwareDeveloper, writing proprietary software for #microfluidics (I do wish I could work on #FreeSoftware for a living instead). My favorite programming language is #rustlang, but I use/have used about a dozen other languages, they're alright. I'm also a fan of #animation.
I guess I never introduced myself, so here goes:
I'm an #ElectricalEngineer from #Brazil, currently living in #France for many years. I work as a #SoftwareDeveloper, writing proprietary software for #microfluidics (I do wish I could work on #FreeSoftware for a living instead). My favorite programming language is #rustlang, but I use/have used about a dozen other languages, they're alright. I'm also a fan of #animation.
Teach your #microscope how to print: Low-cost & rapid-iteration #OpenSource #microfabrication for #biology:
-µm-scale precision across cm-sized areas
-no cleanroom requirement
-SU8 replacement
Preprint: https://doi.org/10.1101/2025.02.20.639256
GitHub: https://github.com/hinderling/fabscope
#DIYbio #lab #instuments #imaging #microfluidics #fabrication #3Dprinted
The application of traditional microfabrication techniques to biological research is hindered by their reliance on clean rooms, expensive or toxic materials, and slow iteration cycles. We present an accessible microfabrication workflow that addresses these challenges by integrating consumer 3D printing techniques and repurposing standard fluorescence microscopes equipped with DMDs for maskless photolithography. Our method achieves micrometer-scale precision across centimeter-sized areas without clean room infrastructure, using affordable and readily available consumables. We demonstrate the versatility of this approach through four biological applications: inducing cytoskeletal protrusions via 1 μm-resolution surface topographies; micropatterning to standardize cell and tissue morphology; fabricating multilayer microfluidic devices for confined cell migration studies; imprinting agar chambers for long-time tracking of C. elegans . Our protocol drastically reduces material costs compared to conventional methods and enables design-to-device turnaround within a day. By leveraging open-source microscope control software and existing lab equipment, our workflow lowers the entry barrier to micro-fabrication, enabling labs to prototype custom solutions for diverse experimental needs while maintaining compatibility with soft lithography and downstream biological assays. ### Competing Interest Statement The authors have declared no competing interest.
Exciting News: I am thrilled to announce that our latest journal article‚ “Design and Characterization of a Magnetic Silicone Peristaltic Pump With Multiphysics Modeling” is now available via IEEE Xplore in IEEE/ASME Transactions on Mechatronics.
In this article, we report on the development of a magnetic peristaltic pump for #microfluidics, #bioengineering or #medicine that does not require rollers and thus reduces abrasion and mechanical stress.
Novel Magnetic Actuation Strategies for Precise Ferrofluid Marble Manipulation in Magnetic Digital Microfluidics: Position Control and Applications
Authors: Mohammad Hossein Sarkhosh, Mohammad Hassan Dabirzadeh, Mohamad Ali Bijarchi, Hossein Nejat Pishkenari
pre-print -> https://arxiv.org/abs/2412.02859
Precise manipulation of liquid marbles has significant potential in various applications such as lab-on-a-chip systems, drug delivery, and biotechnology and has been a challenge for researchers. Ferrofluid marble (FM) is a marble with a ferrofluid core that can easily be manipulated by a magnetic field. Although FMs have great potential for accurate positioning and manipulation, these marbles have not been precisely controlled in magnetic digital microfluidics, so far. In this study for the first time, a novel method of magnetic actuation is proposed using a pair of Helmholtz coils and permanent magnets. The governing equations for controlling the FM position are investigated, and it is shown that there are three different strategies for adjusting the applied magnetic force. Then, experiments are conducted to demonstrate the capability of the proposed method. To this aim, different magnetic setups are proposed for manipulating FMs. These setups are compared in terms of energy consumption and tracking ability across various frequencies. The study showcases several applications of precise FM position control, including controllable reciprocal positioning, simultaneous position control of two FMs, the transport of non-magnetic liquid marbles using the FMs, and sample extraction method from the liquid core of the FM.
Postdoc - Acoustofluidic Platforms for Automated Sorting of Synthetic Cells
TU Delft
See the full job description on jobRxiv: https://jobrxiv.org/job/tu-delft-27778-postdoc-acoustofluidic-platforms-for-automated-sorting-of-synthetic-cells/?feed_id=88008
#acoustics #microfabrication #microfluidics #ScienceJobs #hiring #research
https://jobrxiv.org/job/tu-delft-27778-postdoc-acoustofluidic-platforms-for-automated-sorting-of-synthetic-cells/?feed_id=88008
#PRNTDpump: #OpenSource nonelectric spring-driven #syringe #pump with #3Dprinted components for #microfluidic applications:
-no external power requirement (off-grid usage)
-fabrication cost: $25-30
https://doi.org/10.1016/j.ohx.2024.e00550
#DIYbio #lab #instruments #microfluidics #FrugalScience
An #OpenSource #DIY #Arduino benchtop device for highly scalable #millifluidic flow synthesis of #protein-based #nanoparticles:
-swift thermal formation (#STF) approach
-cost: $350
https://doi.org/10.1016/j.ohx.2024.e00554
#DIYbio #lab #instruments #nanotechnology #drugdelivery #microfluidics
Ygor
ygor
Bose-Einstein-Kondensat
AG ESM
Robotics papers
jobRxiv
The Conversation U.S.
BallouLab
