18 Questions 17 Answers 0 Followers
Questions related from Nhan Dinh Ngo
Hi all I am doing a calculation of RLC circuit in MathCAD, but I am facing to a problem with usage of "i" ( notation of complex number) as shown in my attached file Please help me to treat...
11 November 2018 4,956 1 View
Hi all experienced scientists I am doing a sensing measurement based on microfluidic device. As I sketched in my attached file, I have one buffer solution (PBS) and nearly 8 bacteria samples....
08 August 2018 7,514 0 View
Hi all scientist I am doing my research work related to polymer, so I need to use N-methacryloyl l-histidine methylester (MAH) chemical. Unfortunately, I can not find any supplier for it. Does...
06 June 2018 8,400 0 View
Hi everyone I am doing with MIP technique now and, I tried to following to attached paper for MIP chemicals and protocols. To practice MIP, I tried to coat a thin layer of polymer solution on a...
03 March 2018 4,869 0 View
Hi all scientists I am gonna do a etching process with AT-cut Quartz wafer for my QCM sensor. My plate thickness is 160um, and its shape is 200 x 200 mm. Etching area will be circular shape with...
12 December 2017 9,457 0 View
Hi Scientists I gonna do a simulation for my device ( with Quartz material, AT-cut type), using ANSYS. But I dont know how to create or define this material in ANSYS ? Hence, I post this my...
10 October 2017 5,777 0 View
Hi all I need to fabricate my device on quartz wafer with 1 inch in diameter and both electrodes on top and bottom side must be high concentric. So I need do this work on double-side mask...
10 October 2017 229 0 View
Hi all I have a problem with eigenfrequency and frequency domain, I hope someone can help me to clear I using PDE Coefficient form, and solve my problem in 2D, with independent variable (u) =...
09 September 2017 255 1 View
Hi all I am doing find the solution of PDE in COMSOL using Coefficient Form PDE. My PDE equation and its BCs described in my attached image fileMy coordinate system in 2D, (X1 for horizontal axis,...
09 September 2017 6,870 0 View
Hi every scientist I am doing a design for an oscillator circuit, and I need an OTA ( Operational Transconductance Amplifier ) with " negative transconductance for active component in my...
09 September 2017 7,863 11 View
Hi Scientist I am doing a design my sensor based on the rectangular quartz plate. I reviewed some paper about introduced Mathieu equation for analysing the vibration of the plate, but all plate in...
09 September 2017 3,935 0 View
Hi all Does anyone have experiences with bio-sensing using MIP as bio-receptor? I just consider the sensitivity of MIP in comparison with the other bio-receptor like the antibody, the...
09 September 2017 4,907 0 View
Dear all I am doing a design of my sensor circuit, and I need to get y-parameter of BJT in PSpice. Unfortunately, I am not an Electrical engineer, so it's quite tough to me. So, if anyone has...
08 August 2017 7,890 6 View
Hi all I am going to fabrication QCM sensor in our clean room, integrated to the microfluidic platform. and also, I am going to fabricate the electrode of QCM only 500 um. And, I am not sure...
08 August 2017 5,449 2 View
Hi all Does any one know about the QCM sensor with rectangular electrodes on both sides? I have not found any paper related to this configuration of QCM sensor
08 August 2017 9,745 10 View
hi all I try to simulate electrical potential line in COMSOL using the Electrostatic module, but actually, I got this result which is not same to reference paper. I think my problem is that the...
07 July 2017 8,490 0 View
Hi everyone I am going to bond the SU-8 deposited glass piece and SU-8 deposited silicon wafer together. So, which type of UV Light Cure would be better for bonding SU-8? Best regards Nhan ND
07 July 2017 7,160 7 View
Hi everyone, I am going to form a SAM layer on Gold electrode deposited on Glass piece first, and then I heating ( ~ 90C ) the glass for bonding something. So I don't know which type of SAM layer...
07 July 2017 5,093 3 View
