Shahab Ud Din Khalil

7 Questions 7 Answers 0 Followers

Questions related from Shahab Ud Din Khalil

How to improve the adherence of photo-resist using Hexamethyldisilazane (HMDS) on silicon wafer?

I am trying to develop a PDMS microfluidic device with soft lithography with a smaller features of using HMDS coating before photoresist coating. The smallest features in my device are 40 um2...

20 November 2020 4,210 1 View

I am trying to bond PDMS on glass substrate using oxygen plasma but i am not getting why bonding is not good?

i believe its an easy process. Earlier i have done bonding and got promising results but this time i am not getting good bonding. Kindly help what could be the possible reasons? The time for...

10 December 2018 2,449 8 View

I am attempting to introduce matrigel in a microfluidic channel, how do i know that the matrigel is in channel not leaking out to lateral channel??

kindly help me to figure out whether i can add food color or something else to know that the matrigel is in the required channel..? the thawed product color is red-pink but the vialed material is...

03 November 2018 7,650 1 View

Can i use other proteins like fibronectin, laminin, elastin etc. instead of collagen with matrigel?

i am trying to mimic the physiological micro-environment in microfluidics. i know the fact that the most abundant one is collagen. can i use some other ECM proteins and add it with matrigel?

04 August 2018 6,384 5 View

Developing Covid-19 sensor

I am working on antibodies-antigen interaction to develop lateral flow sensor for Covid-19. i wondering which antimicrobial reagent will be good for PBS solution?? lately people have been using...

01 January 1970 9,154 6 View

Peelling off PDMS from silicon wafer???

I believe that it is an easy process and i used to do it very easily earlier when i used to leave the PDMS curing at room temp about 24 hours. now i started curing on hotplate at 120 'C for an...

01 January 1970 2,802 6 View

How to prepare SEM sample preparation for Silicon mold??

Hi everyone! kindly suggest me to prepare SEM sample for silicon wafer. I want to measure the wells heights of my patterns. Thanks

01 January 1970 2,337 1 View