Iván Robayo Molina

How does oxygen diffusion influence the performance of a Clark oxygen sensor? In this post, I explore how membrane thickness and permeability affect both the current response and the sensor dynamics. Read more here: electrochemeisbasics.blogspot.com/2026/03/the-cl… #Sensors #electrochemistry #ClarkSensor

@HerrKartoffeln @CampiranaFer @ContraGodarria @FernanMartinez El inglés es la lengua franca en la academía, diplomacía, turismo y negocios. Más del 90% de la producción científica es en inglés. Con inglés abre puertas y facilita la comunicación. Llevo 8 años viendo en Europa.

@CampiranaFer @ContraGodarria @FernanMartinez linda, si tú estudiaras en alemania sabrías que el inglés no reemplaza al alemán. venir solo con inglés no te garantiza nada; fuera de berlín, la mayoría de la gente vive y trabaja en alemán. es básico entender que el mundo no gira en torno a una sola lengua.

¿Alguno habla inglés?

@AGDugin I do agree with you

The Christianity itself is much more Iranian than Semitic. More than that late post-Babylonian Judaism of Ezdra, Second Temple and of Pharisee tradition are Iranian. Messia is an Iranian concept. Iran is the metaphysical pole of sacred history.

Learning how to sky at #Kungsberget. Lära sig att skridor på #Kungsberget. Fantastisk upplevelse. #Sverige.

@elonmusknews30 Yes

Now electrochemical impedance spectrocopy from KTH royal Institute

@mdnursyazwi Good for introductory students; it helps visualize the direction of flow, cell components, and general operation. More conceptual understanding than scientific accuracy. To visualize electrochemical processes numerically, check: electrochemeisbasics.blogspot.com

Simulator interaktif ini membolehkan anda membandingkan sel antara Elektrolitik dan Voltaik, aliran elektron dan perubahan tenaga antara 2 jenis sel elektrokimia secara visual. stemsimulator.blogspot.com/2025/10/simula… #Kimia #Elektrokimia #SelVoltaik #SelElektrolitik #STEM #Pendidikan #Simulator

@Suriyakmaps As a social media, blue sky is terribly bad. I don't like it. x.com is 100 times better.

After months of inactivity, Suriyakmaps' bluesky account has been deleted. RIP

🌀The BZ reaction remains one of the most fascinating examples of nonlinear chemical dynamics. In this post, the Oregonator model is used to explore the mechanisms behind chemical oscillations. 🔗electrochemeisbasics.blogspot.com/2025/11/the-be… #BZReaction #ChemicalOscillations #NonlinearChemistry

@_HDHamilton Very good observation. By changing the scan rate, the electrochemical process can be slower or faster than the chemical reaction. Check this blog post that discusses it in more detail. electrochemeisbasics.blogspot.com/2024/08/explor…

1st time (for me) observing an EC mechanism while collecting cyclic voltammograms for a lanthanide in Ionic liquids. By varying the scan rate it’s possible (sometimes) to outrun the chemical rxn. The EC mechanism is a simple example of a coupled homogeneous chemical reaction.

@ndrewwang Usually when the electrolyte resistance is high, the potential applied on the electrode-electrolyte interface is lower than the one reported by the potenstiostat, as a consequence the charge transfer kinetics is slower. Check this blog post: electrochemeisbasics.blogspot.com/2025/05/how-oh…

Electrolyte stability peeps: How does the stability window get distributed between surface/concentration/ohmic contributions to voltage? Does ohmic drop add to the voltage for degradation to occur? #ChemistryTwitter #Battchat

@KLchemistry @IKAworldwide Ohmic drop is quite problematic because the potential applied on the electrode-electrolyte is lower than the one reported by the potentiostat, peak separation increases, and prak distortion. More info can be found here: electrochemeisbasics.blogspot.com/2025/05/how-oh…

#organoechem tip of the day. Most reference electrodes are not suitable for organic media. They either contaminate your solution or introduce unnecessary ohmic drop (= misshaped curves). Solution: use a quasi-ref and add Fc as internal ref! @IKAworldwide #RealTimeChem

@acolinaubu #Spectroelectrochemistry is getting more and more relevance due to the coplementary of both worlds. In contrast of just using #electrochemical techniques. Check the following blog post that simulates a #voltammogram coupled with UV-Vis #Absorption. electrochemeisbasics.blogspot.com/2025/01/spectr…

Finally #spectroelectrochemistry is present in wikipedia thanks to Andrea, Cristina and Lydia, undergraduate students. en.wikipedia.org/wiki/Spectroel…

@MissH_biology @cogscisci Very clear and didactic diagram! Optimal glucose level is very relevant. If you are curious on how an amperometric sensor detects glucose, the following blog post discussed it in detailed with animations and simulations. electrochemeisbasics.blogspot.com/2025/10/how-gl…

Regulation of blood glucose levels... a topic that students find particularly difficult. I’ve attempted to make a diagram to make it a little easier. Feedback welcome 🙂 @cogscisci #dualcoding #edutwitter #biology

@COMSOL_Inc Great work, @COMSOL_Inc ! The #glucose sensor simulation is important, those concentration gradients are key for accurate readings. I explored this in my blog post electrochemeisbasics.blogspot.com/2025/10/how-gl…. Check it out for more insights! #HealthTech #Simulation #biosensors #bioelectronics

With simulation, you can efficiently analyze an #electrochemical #glucose sensor. See how: buff.ly/1nTSXZY

Why does a glucose sensor saturate at high concentrations? As glucose is detected, a diffusion layer forms. At high glucose levels, the enzyme becomes saturated, and the current no longer varies linearly with concentration. electrochemeisbasics.blogspot.com/2025/10/how-gl… #biosensor #bioelectronics

@saul_hrr 3. You must follow me, so I can share the code with you.

@ifrm1988 Te agradecería el script de gnuplot. Y el planteamiento del problema físico. Podría intentar algo similar en Openfoam

Diffusion profile of an amperometric response involving a charge transfer reaction. Due to the electrode's small width, the total current combines radial and planar diffusion. Simulated in R + gnuplot #electrochemistry #diffusion #Rcran #Gnuplot

@saul_hrr 2. This creates a diffusion layer, but due to the size of the electrode ~100 micrometers, two type of diffusion dominates the process: planar at the center of the electrode and radial at the electrode edges.

@saul_hrr 1. It is basically the diffusion profile of a specie involved in an electrochemical process. At the electrode-electrolyte interface (x=0), the concentration was set to zero because the all the specie is oxidized. Consequently, species must diffuse from the bulk of the electroyte.

Curious about biosensors? This blog post uses a glucose biosensor to explain how these electrochemical devices work, from enzymatic kinetics to electrical signals. It includes an amperometric simulator. #electrochemistry #Shinyapp #biosensors #GNUplot electrochemeisbasics.blogspot.com/2025/10/how-gl…