If you haven't used the "Save on internal storage" option, and ignored the message "Unsaved data! Discard?" when closing the software, clearing the plot, or loading other data, I'm afraid there isn't a way to recover the data. Fingers crossed, you will manage to reproduce it easily.

Hello Manikandan, T Thanks for your comment. You are right, our company is primarily focused on electronics manufacturing and does not engage in the commercialization of end products for the sensor market, particularly in the health market. Our core expertise lies in providing high-quality instruments and OEM solutions.

@@PalmSens please post a feature videos like real time analysis of targets (5 years ago your posted real time glucose detection) like simple demonstration using sensit wearable sensors would be helpful for researchers

​@@manikandanr7440 Thank you for your suggestion. Our team has already discussed this possibility, and we plan to work on an application video as soon as one of our partners has a suitable demonstration.

Dear Juan Martinez, thank you for your question. You can use the OCP technique to acquire voltage readings over time. Additionally, you can apply a stimulus signal within the device's capabilities and ranges. Please note that the Sensit Wearable is not licensed for use as a medical device, so it should be used strictly for R&D purposes.

@@PalmSens Thank you for your soon response! I work for a research lab at the university of Florida and we are interested in acquiring one of your devices. The questions that we need to answer is that if the skin should be dry while in contact with the electrodes or could it be dry? We would prefer the latter. Additionally, we are interested in knowing more about the electrode configuration is, for this device. We want to know what each pin in the Sensit does and so we could have a better idea on how to use it. Finally we would like to know exactly what is touching the skin. I know those are a lot of questions, we are truly interested. If you could guide me to a resource we could use to reference those questions I would greatly appreciate it. Thanks in advance.

@@juanmartinez4523 The provided 3rd party sample patches are touching the skin and they are basic carbon electrodes, so they require some functionalization to work with. If you want to create your won patches you can find the pin description of the Sensit Wearable in the manual, it is in the download section at the bottom of the product page (www.palmsens.com/product/sensit-wearable/). The STEP files for the mounting bracket are also there. For pricing information please request a quotation via our website. Here at PalmSens we focus on instrumentation and software for research and OEM customers, we do not manufacture patches and/or sensors ourselves.

Dear Edmondo, Great to hear you are excited as well about the Sensit Wearable. We certainly are. The Sensit Wearable is based on the EmStat Pico and thus works with MethodSCRIPT (see this video: www.palmsens.com/knowledgebase-article/sensit-wearable-how-to-run-automatic-measurements/). This means you can transfer most of this application note to the Sensit Wearable: www.palmsens.com/knowledgebase-article/psan-espico-characterization-of-field-effect-transistors/ What do you exactly mean by real time measurements? Do you want the data to be sent to for example a laptop or smartphone while it is running? That is possible.

In this video we made a mesaurement with the Sensit Wearable on a dummy cell and we have a video showing dummy cell videos as well: www.palmsens.com/knowledgebase-article/sensit-wearable-how-to-run-automatic-measurements/ If you want to see a measurement with a self-adhesive patch on someone's skin, I'm afriad, we are still working on that. The example patches are blank carbon, i.e. they don't have specific analyte. We first need a customer, who develops a patch for the Sensit Wearble. If someone has such a patch, we are happy to feature it in a video.

The PalmSens4 offers superior noise suppression and better performance for very low current measurement compared to the EmStat4. It also provides a higher voltage range (+/-10V versus +/-6V of polarization) and higher EIS frequency (1 MHz versus 200 kHz). On the other hand, the main advantages of EmStat4 are the faster data acquisition, compatibility with MethodSCRIPT for software customization, and higher current capability (+/-200 mA versus +/-30 mA). Furthermore, the EmStat4 is available in two hardware versions: LR and HR, with variations in specifications. The LR means Low Range, tailored for low-current and low-voltage, while the HR means High Range, with higher current and higher voltage ranges. Additionally, the EmStat4 comes in three different models with varying peripherals: • EmStat4S (USB-only), • EmStat4R (available with LR hardware only, includes battery, Bluetooth, and removable front for regular cell cable or SPE connector), • EmStat4X (with battery, Bluetooth, auxiliary port, iR-compensation, and a small display). If you would like to have a online meeting with one of our specialists please contact us via [email protected] or submit a quotation request via our website www.palmsens.com

Dear @ushaforme, I suppose you are talking about the warning 't Max equilibration is lower than longest sine period'. The impedance measurement requires a stationary state. This means that before the actual measurement starts, the sine wave is applied during ‘t Max equilibration’ only to reach the stationary state. The maximum number of equilibration sine waves is however 5. The minimum number of equilibration sines is set to 1, but for very low frequencies, this time is limited by ‘t Max equilibration’. The maximum time to wait for a stationary state is determined by the value of this parameter. A reasonable value might be 5 seconds. In this case, this parameter is only relevant when the lowest frequency is less than 1/ 5 s or 0.2 Hz. Increasing this parameter can be beneficial when measuring unstable or noisy samples at low frequencies, although it will extend the overall measurement time.

Glad you like them!

Sure, you can find this information on the instrument / software manual, next to the Section ' Measurements'. Here follows the information for your convenience: 2-electrode cell connection For a 2-electrode setup, combine the counter and reference electrode leads. The counter electrode plug of PalmSens cables is stackable, allowing for convenient combination. Subsequently, connect the working electrode lead to one electrode and the combined counter and reference electrode leads to the other. In models with a Sense lead, combine it with the working electrode, utilizing its stackable feature similar to the CE lead.

Usually charge-discharge measurements are performed galvanostatic, i.e. a current is applied. The Sensit models don't offer galvanostatic control, thus we don't recommend the Sensit BT for charge-discharge measurements.

Usually, batteries are measured in a 2 electrodes setup. This means the red working electrode on one side of the battery. The combined blue reference and black counter electrode go on the other side. We have a knowldge base article about 2, 3 and 4 electrodes setups: www.palmsens.com/knowledgebase-article/purpose-of-a-sense-lead/

​@@PalmSens Thank you very much! And I have another question, is it possible make CV and EIS simultaneously. I mean before cycling making EIS, after that CV 1st cycle and after that EIS. Is it possible make it in one process without human interaction?

@@MrLoLbl4 Yes, it is possible to automate your experiment and to combine different measurements sequentially by using the Script functionality in PSTrace: You can find details on how to create a Script in the PSTrace manual or check this online tutorial video: www.palmsens.com/knowledgebase-article/pstrace-tutorials-5-scripting

Dear Rita Policia, Yes, you can set the number of cycles in the field labeled cycles as shown at 2:30. 1000 cycles are no problem for PSTrace. If you want to save the data automatically, just use our Autosave option as demonstrated in this video: kzbin.info/www/bejne/kGWUiZywl7J0pJo If you have further questions, feel free to reach out to [email protected].

​@@PalmSens Thank you so much for your answer, it really helped! Also, is there a way to define a cut-off current when I'm charging-discharging the batteries?

Sure. Charging-Discharging is usually done with constant currents and the voltage is measured. In this situation a charge or current cut-off doesn't make sense, as you have set these before the measurement. The voltage cut-off is demonstrated at 4:18. If you want to charge-discharge potentiostatically you can use the Mixed Mode or MultiStep Amperometry to do that. The cut-off currents are, like the cut-off voltages shown in the video, hidden behind the "..."-button.

If you hover above the points in the Equivalent Circuit Analysis window you will see a tooltip on how remove an outlier: draw a box around the point while holding down the ctrl key.

If you hover above the points in the Equivalent Circuit Analysis window you will see a tooltip on how remove an outlier.

Dear Pratyush Mohapatra, thanks for your inquiry. Here at PalmSens we focus on instrumentation and software for research and OEM customers, we do not manufacture (screen printed) electrodes or accessories ourselves. Among our partners, I don't recall any of them with ready products for peroxide detection. Nevertheless, you can ask them, we provide a complete list of the companies we collaborate with here www.palmsens.com/custom-sensor-development/#section-3

Dear Akash, The problem you are describing could be a known issue that has been resolved in our current release of PSTrace (5.10). You can dowload it here: www.palmsens.com/software/ps-trace/? Yes, all our potentiostats work with a three electrode setup. We use the classic electrochemical setup. During potential control, the potential control between the WE and RE is controlled. The current flows between WE and CE. I understand that sometimes in battery science the feedback loop is only between the WE and CE, while the RE is used to measure the potentials. That is not how we currently do it. If you are facing issues, feel free to contact us under [email protected] or contact your local representative: www.palmsens.com/distribution/?

@@PalmSens Problem has been resolved by updating the software

Yes, there are multiple ways to reduce noise. The best ways to reduce noise is to avoid measuring it. A Faraday cage connected to the potentiostats GND (green plug) does a great job there. You can also increase the interval time, so more datapoints get averaged, so surpress the measures noise. You can also set the level of smoothing in the "Levels" or "Peaks" tab in the method editor. Be careful, because a high level of smoothing can also smooth away actual features. If you are struggling with big amounts of data, you can also consider to write a specific piece of software for your application. We provide various tools to write your own code: www.palmsens.com/writing-code-for-our-hardware/?

Dear Akash, It isn't required to make a special psmethod file at all. The parameters of your measurements, no matter of multiple scan measurements like CV or single scan techniques like SWV, are saved in your pssession file. If you want you can save the measurement parameters in a separate psmehtod file. Usually, that would be a single psmethod file, because the parameters don't change throughg out the measurement.

Dear Akash, No, it isn't required. Method files are used to only save the parameters for setting up your measurement. This is helpful when you often repeat the same measurement or only want to share the method with a colleague and not your actual measurement data. As shown in the first half of this video, the pssession file contains the parameters for each measurement anyway, so just saving the pssession file will suffice and you don't need a separate psmethod file.

@@PalmSens thank you so much for sharing the information.

Sure, just set a different limit as explained at kzbin.info/www/bejne/m4bHe5-pr92Aec0 or set no limit, if we don't want to reach a specific potential. The maximum potential and current available in an experiment depend on your chosen cell and used instrument.

Dear Muhsinali, That is not an easy question. Digital potentiostats work in discrete potential steps, which makes their ramps always a staircase if you zoom in sufficiently. This way of measuring has an in-built supression of capacitive current or other very fast processes. The shorter the interval time, the closer the measured capacitive current will be to the real current. The whole effect is well documented by brands that have a true-linear module, to demonstrate their advantages. This is why CV isn't a great method to measure capacitive charging currents. You can use a potential step method. You can use MultiStep Amperometry or Fast Amperometry, but unfortunately there is a short overhead time, nefore the step, so for a fast capacitor this could have some impact. We are working on improving this. We recommend Method, if you have an EmStat4 or EmStat Pico. This way you can perform the whole method on the board of the potentiostat, without any overhead time.

Dear Dalalalhilfi87, I assume you meant the specific capacity of your battery, because for capacitance the mass of the electrode material isn't relevant. I'm afraid electrochemistry isn't suitable for determining the unknown mass, except you know already the specific capacity. The easiest way to know the mass of the electrodes material is to weigh it before you apply it to your electrode or deconstruct the battery afterwards. Let us know, if you have further questions by contacting [email protected]

Dear Colonel Banane, I have not observed much impact. There was a bit of extra noise during CA when EIS was run in parallel. A more detailed description and plots comparing the measurement while EIS was running on another channel to a solo measurement are available here: www.palmsens.com/knowledgebase-article/multi-channel-multiple-working-electrodes-in-the-same-cell/

Dear Sir or Madam, As I understand you are already in contact with our support team. The issue was that you are using the multiplexer for the EmStat Pico. The EmStat Pico MUX16 is not controlled via PSTrace directly. It is controlled by MethodScript, but you can use the MethodSCRIPT Sandbox in PSTrace to control it.

@@PalmSens Thanks I understood . Actually i have used Methodscript sandbox to operate MUX 16 .But i can only be able to take readings of LSV. please guide how can i take chronoamperometry readings. because when i try to use different scrip for chronoamperometry . it is not working I only got horizontal line in the readings.

Dear Noor E Hera Warsi, I'm afraid the explanation is a bit too long for youtube comments. Let's continue the discussion via email: [email protected]

@@PalmSens yes sure. Thanks alot

Dear Swarnadasari9681, We would prefer that you are using PalmSens potentiostats. They have multiple options to connect electrode, SPEs or classical. However, potentiostats, no matter the brand, don't care what electrodes are connected, they will just apply the potential and measure the resulting current. All you need is a connection between your potentiostat and the electrodes. We offer multiple options for SPE adaptors, that are also suitable for other brands. You can find them here: www.palmsens.com/products/sensors/sensor-connection/? If you are looking for a very straight forward option we recommend our SPE connector (2 mm) www.palmsens.com/product/sensor-connector/?

@@PalmSens Thanks a lot for your suggestions.

Dear Wangkailai8992, A more detailed explanation can be found in our knowledge base: www.palmsens.com/knowledgebase-article/potentiostat-parameters-explained/? Usually the main issue is the resolution. The current range defines the lowest current difference that can be resolved. If you try to measure a current below the current resolution, the potentiostat cannot show the correct value.

Dear Tithinutpohboon, You don't need to determine β anodic,cathodic before a Tafel Analysis or a fit of the Butler-Volmer equation. These tests determine the β anodic,cathodic. The entered values of β anodic,cathodic are required for calcuating the corrosion rate from the polarization resistance accquired from an EIS measurement.

The Sensit Smart is made for Screen Printed Electrodes (SPE). The SPEs have usually all three electrodes (RE, WE, CE) and a contact pad for each of the electrodes. The end of the SPE with the three contact pads is inserted in the Sensit Smart and there are three contacts. The Sensit Smart comes with a screw terminal adaptor, that also allows you to use your own cables with the Sensit Smart. We have multiple videos with the Sensit Smart in action here: www.palmsens.com/knowledgebase-category/webinar/

Great that you like it. Just visit our website www.palmsens.com/ and pick one you like.

Dear Muhsinali8386, The explanation is from 5:07 (kzbin.info/www/bejne/bILdlauipL92ocU) onward. If you let me know what is missing in this segment, I'm happy to give you a further explanation.

​@@PalmSens I went through the vedio but I have one thing to ask, if we have printed sensor with multiple WE and one RE and one CE in common then what should be the options to use multiplex in hardware and software

In the software you, as described in the video, check the box to use the common RE and CE of channel 1. They are also marked as common RE and common CE on the cable. This way the RE and CE are no longer multiplexed, so all measurements will be performed with thie RE and CE. I'm afraid, I don't know which connections are best for your customized electrodes, but if you have broad contact pads, you could just the croc clips, which were delivered with the device. If you want to send us photos of your setups, feel free to send your questions and any extra data to [email protected]

Dear Daleeng, If you are using PSTrace you can perform EIS with a potential scan (Select for Scan type: Potential scan) and choose the freuquencies you are interested in. Make the measurement. You can change the plot to C vs E and export the data. You can use the on-click-export to Excel or Origin or you use the other options in the top menu Data - Export Data. The last steps would need to be performed in the spread sheet software of your choice.

comm error object reference not set to an instance of an object in palmsens4.. What is the solution to this problem? It occurs when the measurement is potential scan..

and cyclic voltometery show as line

@@dalalalhilfi87 There could be various causes for this error. To offer more effective assistance, we kindly request additional details about your setup. Please send the .pssession file(s) containing measurement data, along with any relevant system images that you believe could be helpful, to [email protected]. One of our specialists will respond accordingly.

Dear drkavirajaapandiansambasev6671, Yes, the Analytical Mode of PSTrace and PStouch is included in every PSTrace version.

Thank you. I will be buying a Sensit BT soon@@PalmSens

The cell potential is described by the symbol E. Multiple derivates of the cell potential E are often indicated with an E plus an index. I think the most prominent equatio using E for the cell potential or half-cell potential is the Nernst-Equation: en.wikipedia.org/wiki/Nernst_equation

Dear Felix Ansah, you cna try to solve this issue yourself by following these instructions: www.palmsens.com/knowledgebase-article/palmsens4-recovery/? Otherwise, please send an email to [email protected]

Glad it was helpful!

We have a tutorial video about Equivalent Circuit Fitting: kzbin.info/www/bejne/gYLdoWaihbKGrsk

We have no experience with flexible FET biosensors at the moment. The concept sounds appealing.

Dear Hossieny, We have planned a TutorialTuesday video about this topic. The schedulded release date is May 30th. You can also find information about the stirrer in the pdf of the PSTrace manual, which is installed with PSTrace. If you cannot wait until May 30th, please send your question to [email protected], so we can send you the explanation via email.

A Screen-Printed electrode is not a battery. Yes, you can choose the material you would like to work with. Different producers offer different materials. A selection can be found in our catalog: www.palmsens.com/products/sensors/screen-printed-electrodes/ The electrodes can be immersed in the electrodes or a drop of electrolyte is applied to the electrode. You can find multiple demonstrations on our KZbin channel, for example kzbin.info/www/bejne/a17VnJKLlsdknqc

Dear Ad On, for registration follow this link and you will get an e-mail with the link to the webinar: us06web.zoom.us/webinar/register/8216781940858/WN_7Sr-5ybET-6X8DsXs9Z6bQ

Dear Ad On, Here is the registration link for the webinar: us06web.zoom.us/webinar/register/8216781940858/WN_7Sr-5ybET-6X8DsXs9Z6bQ Once you are regsitered (free of charge) you will receive the link for the webinar.

@@PalmSens thank you. I have registered.

Really informative video...

Thanks for watching!

Thanks! If there are further questions feel free to send them to us: [email protected]