How can I remove the sticky PDMS from the silicon wafer?

More Yin Jun's questions See All

"A Markov-like Model for Patient Progression"?

A Markov-like Model for Patient Progression" Markov Chain Monte Carlo (MCMC) Markov Chain Monte Carlo (MCMC) is a powerful computational technique used to draw samples from a probability...

05 August 2024 10,079 0 View

La animación digital en plataformas digitales?

Hoy la animación se utiliza como una tecnología multimedia con gran potencial educativo, que va mucho más allá de sólo crear figuras, ya que puede promover una mejor comprensión en...

01 August 2024 7,186 0 View

GSH estimation assay: What is the right choice of standard?

Hi there, My question is: What standard curves should be used while estimating Tot GSH and GSSG by kinetic method using GR enzyme mediated recyling with DTNB chromophore? Actually I am following...

01 August 2024 8,217 1 View

How to do pca analysis of c-alpha atom of the protein?

i m interested in pca analysis of c-alpha atoms in gromacs for that i used the following gmx_mpi covar -s mdca.tpr -f mdca.xtc -o eigenvalca.xvg -v eigenvecca.trr -av average.pdb -n index.ndx but...

30 July 2024 1,607 1 View

What exactly is RAG-LLM doing? Isn’t it data engineering?

What exactly is Retrieval Augmented Generation for Large Language Model doing? Isn’t it data engineering?

30 July 2024 7,376 3 View

After a lot of feature engineering for CTR modeling, it feels like it's basically the end of iteration? I mean, it's not cost-effective to keep doing?

After a lot of feature engineering for click-through rate modeling, it feels like it's basically the end of iteration? I mean, it's not cost-effective to keep doing it?

29 July 2024 4,955 0 View

How to estimate sample size for GWAS of continuous and discrete traits? What are the pre-requisites?

Genome-wide association study (GWAS) Continuous traits: eg. Height Discrete traits: eg. Eye color

28 July 2024 286 0 View

All math can be explained by iterator of code?

all math can be traversed by code? all math can be translate to code?

26 July 2024 9,530 0 View

HEC 1A & HEC1B Cell Lines?

Hi, Kindly guide me that how many cells of HEC1A & HEC1B Cell lines should I seed for Wound healing assay and which plate type is recommended 6, 12 & 24?. Articles suggested mainly 24...

20 July 2024 4,143 2 View

Why electrical charge on the moving plate increase?

Hi, everyone This figure depicts a simulation of an electrostatic energy harvesting system in COMSOL Multiphysics software. My question is regarding the relationship between the changes in...

19 July 2024 4,694 4 View

In the presence of VERY high concentration (1000 ppm) of silicon, the adsorption isotherms of arsenic are showing anomalous trends, why so?

I conducted an adsorption experiment of arsenic on soil in the presence of different doses of silicon as competing ions to see the effect of silicon on arsenic adsorption and desorption. I took 5...

03 August 2024 6,500 3 View

Why PDMS is not hardening ?

I use PDMS to build a microfluidic system, but it is not hardening at all, although I use TEOS as a cross-linker and also ATPES in a ratio of 1:10, and it's been 3 days at 80 degrees of 3 ml cast...

01 July 2024 604 3 View

Chemical composition of curing agent for PDMS (Sylgard 184 Kit) and solid percentage?

1- Please provide information about the chemical composition of curing agent for PDMS(Sylgard 184 Kit)? 2- what dry solid percentage is obtained for a ratio of 10 to 1(PDMS to hardener)?

30 June 2024 6,814 2 View

How to solve this error while I simulate gidl using tcad ?

There is an error message "interface silicon/oxide not found in grid xxx.tdr file"

26 June 2024 5,551 0 View

Cut PDMS sheet with Graphtec cutter plotter CE6000-40?

Dear All, I want to cut PDMS sheet with thickness of 0.8 mm to rectangular shape with Graphtec cutter plotter CE6000-40. What condition do you offer? Do you offer any kind of special speed or force?

25 June 2024 8,111 1 View

How to cut a sample with several micrometers thick silicon oxide with DISCO DAD323 dicing machine?

I use a DISCO DAD323 dicing machine to cut my sample,which has 1-2 micrometers SIO2 on its top.However,the SIO2 is broken and fall apart everytime.I tried different cutting speed but didn't work....

20 June 2024 1,131 0 View

How to reduce the permeability of pdms?

I want to trap fluid (water..) in the PDMS channel for a long time. After a short period, the channels become empty of fluid. Is there a way to reduce the permeability of PDMS?

17 June 2024 2,703 4 View

How to color PDMS?

Hi, I am trying to color a very thin (3um), spincoated layer of PDMS with a dye (I want to make the thin layer visible to the naked eye). Does anyone have experience with dyes/ colors and...

11 June 2024 7,330 2 View

What is name of this chemical reaction process?

My research object is changing terminal functional group of PDMS from -OH to -PO(OH)2. I know just one experiment recipe using furan, ethylamine, POCl3, D.I water. But it not work well. So i want...

09 June 2024 5,290 0 View

Why is my thin film PDMS TFM device warping only when with cells?

I've been fabricating traction force microscopy devices in glass bottom dishes, using a method that first spins a 100 micron PDMS layer, then a ~1 micron PDMS + fluorescent beads mixture layer....

09 June 2024 652 2 View

Xuhua Wang

Please see the link that answers your question.

https://www.researchgate.net/post/Does_PDMS_have_any_solvents

Rajagopalan Pandey

solvents like chloroform, THF might be of help.

Yin Jun

Murugathas Thanihaichelvan Thanks for your advice! I added a curing agent, but the vacuumed environment may not be dry enough, so the pdms cross-linking is not complete and very sticky.