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Microfluidics and Multiphase Flow Laboratory - SUNY Binghamton
Добавлен 18 май 2015
Video tutorials from the Microfluidics and Multiphase Flow Laboratory in the Department of Mechanical Engineering at the State University of New York at Binghamton.
Fabrication of PDMS Microfluidic Devices Integrated with an Electrical Circuit
Fabrication of PDMS Microfluidic Devices Integrated with an Electrical Circuit
Просмотров: 16 772
Видео
Preparation of Phospholipid Oil Solution
Просмотров 1,4 тыс.9 лет назад
For questions, please contact us at: ws2.binghamton.edu/chiarot/
Fabrication of PDMS Microfluidic Devices
Просмотров 64 тыс.9 лет назад
For questions, please contact us at the following website: ws2.binghamton.edu/chiarot/
Helpful video, I suggest these videos, it may be helpful too.ruclips.net/video/r-W7PUs6nGk/видео.html ruclips.net/video/DWiVRBcY5N0/видео.html
nice explanation
can I ask which primer did you use on aluminum layer before applying photoresist?
Thank you so much for sharing. The video is very helpful for me, as a beginner in the microfluidic field.
the process is very misleading, many details are not shown, don't copy this process, otherwise your sample will be very ugly.
In cleanroom without mask?! You fail already!!! U r not a professional researcher!
Nice video. Thank you for sharing. How it is different from microfluidics flexdym?
instead of patterning the negative, is there a reason not to have patterned the channels, and etched the negative into the substrate, removed the mask, and then used solid silicon as a more durable mold? perhaps coating it with PTFE (which i believe can be sputtered) for a mold that i suspect (i guess i don't really know) might have a longer lifespan?
it depends on how good your etch is. most people just use su8 because its rapid way of fabrication for prototyping. if you are 100% sure that you will perpetually use the same mold over and over again then you can eventually etch down a wafer but then you will have to ensure that the quality of your etch is good enough that you can can PDMS on top of it reliably. With either a wet or dry etching step you will introduce the chance of perhaps an anisotropic etch for example with other factors such as roughness that a well developed photoresist might not have.
What are the prepolymer and curing agents you used for PDMS elastomer preparation?
Here they are: www.ellsworth.com/products/by-market/consumer-products/encapsulants/silicone/dow-sylgard-184-silicone-encapsulant-clear-0.5-kg-kit/
Love ur great work....
thanks, really nice the question is silicon wafer thickness
Thank you for adding the information in such a great video. I was wondering where exactly is the location of made sensors on the device?will it be in contact with the fluid flow through the microfluidic? and will it be possible to do the same thing using gold with slight changes to the protocol? Thank yuo
Hello Maedeh, Thank you for watching the video and leaving a comment. Well the relative location of the sensor with respect to the PDMS block depends on your design - since they are separately made, you have the freedom to choose the location. Also, the electrodes in this video are not in contact with the flow - they are covered with a PDMS layer that is spin coated on the glass slide. You may skip that step and simply bond the PDMS block to the glass slide. Yes, you can perform similar protocols to make gold electrodes as well with slight changes.
Ugh, this video is so good. I did this procedure at my school and your lab (and equipment) is sooo nice.
This was just awesome... for everyone who don't afford to see it in labs.. Thank you ..
Very helpful video! But I curious where can I purchase the nano-strip?Thank you!
Thanks. You could purchase it from VWR.
This video is so great. Recently I have researched in the field of flexible electronic devices and viewed several related papers about your video. I think this video could be better if you can promote something which can introduce the basic scientific theories or characterizations toward to final devices. For example, the definition of wavy structure, the working condition requirements of it and so on.
I love this video. Thank you so much for providing such a useful video.
Hey really nice video.Could you please tell how would your what will your electrical circuit sense or measure and how will it work exactly??
Thank you. We connect the terminals to a high voltage DC power supply in order to have electric field in some spots of the micro channels. It is aimed for dielectrophoresis.
hello, thanks for posting. Regarding PDMS, is it affordable? where can I find it?
Hi, I am sorry for late response. One package of the PDMS elastomer costs about $50, you can find it in below: www.ellsworth.com/products/by-market/consumer-products/encapsulants/silicone/dow-corning-sylgard-184-silicone-encapsulant-clear-0.5-kg-kit/
Hi, I've some questions Regarding this... 1> How did you put the aluminum coating over the glass slide? 2> how did you fabricate mask for mask aligner?
Hi Surjendu, You can contact EMF, the link in below is what we used: www.emf-corp.com/aluminum-slide.html You can contact this company regarding the mask: www.photoplotstore.com/
This is out of my league!
Could you please suggest a good way to punch holes in PDMS
You can use these punchers, number 16 www.mcmaster.com/#catalog/122/3473/=14gdon2
Reusable Stainless Steel Dispensing Needles Gauge 16
ThankYou for your vedio!!!
Thank you very much for video. You've made whole process almost selfdescribing.
Won't IPA dissolve the developed photoresist?
The developed photoresist will not be dissolved in IPA.
There were many confusions before I watch this video.. Thank you.. Please upload other videos as well that includes sputtering method for electrodes and other methods as well...
Thankyou so much for uploading this video... Very helpful for students working on microfluidics
Really helpful!