How the silicon-carbon composite material with the unique morphology is formed？

More Yang Shifeng's questions See All

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

Recovery rate after peptide desalting using Sep-pack C18 1 cc Vac Cartridge?

Recently I'm trying to use Sep-pack C18 1 cc Vac Cartridge (Waters: SKU: WAT054955) to desalt digested peptides. However, the recovery rate is usually 40-60%. What is the normal recovery rate?

31 July 2024 6,544 11 View

A positively charged and 10x his-tagged protein that doesn't bind to any chromatographic resin?

Hello everyone, I am currently working on a protein that is 10x his-tagged and positively charged (predicted pI=10.16). But when I tried to use Ni-NTA column to purify the protein, it's not...

24 July 2024 7,293 4 View

How to transfect circular mRNA to T cells?

Hello! We are using LNP to deliver circular mRNA into T cells. However, compared with linear mRNA, the transfection efficiency and protein expression duration are similar. Are LNP generation or...

21 July 2024 4,322 1 View

Look for qualified candidates of Visiting Scholars to Southwest Jiaotong University?

We invite qualified candidates of Visiting Scholars to engage in research collaboration or deliver lectures on their research, with travel expenses covered. The visiting period is flexible,...

20 July 2024 1,165 1 View

How can we effectively assess and monitor the health of the soft and hard tissues around implants so that problems can be detected and treated early?

Although I have extensive experience in dental implants and periodontal treatment, I recognize that we face some deficiencies in my clinic. First, we need to update our equipment, especially in...

09 July 2024 2,004 3 View

What is the association and mechanism between bacterial diversity in the oral microenvironment and clinical manifestations of periodontal disease?

This research question explores the complex relationship between bacterial diversity in the oral microenvironment and the clinical manifestations of periodontal disease. The oral microenvironment...

09 July 2024 6,210 1 View

How can technology empower EFL teaching?

Scholars from multiple disciplines stressed the importance of AI Technology in ESL teaching from a theoretical perspective. Are there teaching designs that combine theoretical discussions and...

01 July 2024 999 7 View

The difference between the E. Laviron's model and RICHARD S. Nicholson's model for electrode reaction kinetics?

For the measurement of electrode reaction kinetics and electron transfer rate constant, using E. Laviron's model and RICHARD S. Nicholson's model, the greater peak potential separation indicates...

30 June 2024 580 3 View

Any tips for cell counting in 96-well plate?

Dear colleagues, I am currently using HCT-116 adherent cells for cell culture in 96-well plates and have some questions regarding cell counting. I have tried various methods and found the most...

22 June 2024 1,124 5 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 719 0 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

Is there anyone with experience in TEM analysis who can assist with a manuscript for an upcoming journal?

Hello dear colleagues, We have prepared a manuscript on NiTi-based alloys and are seeking a second opinion on our current TEM results. If you are a Ph.D. holder with experience in TEM and have...

07 August 2024 9,563 0 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

Wagner Correr

Hi Yang Shifen,

I have seen a structure similar to this before from a researcher using organic materials in spray-drying. This sort of structure seems to be a hollow sphere that collapses in a fast drying process (it is much like shriveling a ball). Although it is just a suggestion. Your process of fabricating such material, the sample preparation for SEM, etc...

Good luck!

Ahmed Qasim

This structue similar to nano tube.