Hello, can we make a nonwoven by spunlace method with vegetable fibers?

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What are sources of negative control/artificial urine that I could use use dilute standards down in an ELISA?

Hello! I'm hoping to run an ELISA on human urine samples to measure testosterone levels. We are hoping to use a kit from Neogen, which has been validated for serum/tissue/urine. The protocol...

28 May 2024 2,815 0 View

Has the formation of my silver nanoparticles been indicated by the provided UV-Vis spectrum?

I'm trying to produce silver nanoparticles using plant extract, but I didn't observe the expected peak in the UV-Vis spectrum between 380-420 nm, where silver nanoparticles typically appear. After...

04 May 2024 6,463 11 View

What are the best solvents and plant extraction methods in the green synthesis of silver nanoparticles ?

1. Which form of plant extracts shows the greatest potential for green synthesis of silver nanoparticle: - direct homogenization with deionized water followed by filtration or centrifugation,...

02 May 2024 7,789 2 View

When designing a pulse oximeter simulation, what is the sole purpose of including a timer in the simulation?

For example, if the simulation software used is wokwi.

13 April 2024 480 2 View

Do you have an evaluation tool or rubric that will evaluate a learning material if it applies the multimedia principles of Mayer?

I am developing a learning material that applies the Multimedia principles of Mayer. I need an existing tool or rubric to help assess my material

07 April 2024 1,283 0 View

How can I stabilize a thick ethanol extract dissolved in water for AgNP green synthesis?

Initially, I conducted maceration with a 70% ethanol solvent for 3x24 hours to obtain the thick extract. For the AgNP synthesis, the thick plant extract needs to be dissolved using deionized...

04 April 2024 6,946 4 View

How to publish a paper without academic background?

I just failed about my PhD application (Business field). I think one of the reasons is "No Publication". But I have limited access of academic journals (usually use Google Scholar) and no...

21 March 2024 8,988 4 View

How to have self-learning of psychology and statistics?

I would like to study in PhD in marketing field. However, the Business School prefers to the candidate whom has a strong background in social psychology, judgment decision making / behavioral...

21 March 2024 5,335 5 View

After purification by centrifugation and washing with deionized water, what are the subsequent steps to produce silver nanoparticle AgNP?

1. If I air dry the sample overnight, how should I prepare it for UV-Vis, FTIR, DLS, and SEM/TEM characterization? 2. Do I need to add a buffer to maintain sample solubility? Should the...

19 March 2024 4,898 5 View

What are the best approaches for designing the green synthesis production of silver nanoparticles?

Is it more effective to optimize the ratio of plant extract to AgNO3, or should I adjust the final concentration of AgNO3 in a fixed concentration of plant extract, considering the optimization of...

19 March 2024 1,183 4 View

What type of polyester support is better for preparation of PVDF membranes for membrane distillation process?

Dear researchers, It is well known that there are different types of nonwoven polyester fabrics. But which of them is better for the flat sheet hydrophobic PVDF membrane preparation for the MD...

11 September 2022 4,813 0 View

From where Can I get Nonwoven Backing Fabric Support for Forward Osmosis membranes?

Dear All My PhD research is about fabricating new Forward Osmosis membranes , and I use two materials CTA and PVDF. I am looking for a Nonwoven Backing Fabric Support for Forward Osmosis membranes...

09 January 2022 4,117 0 View

Why sound absorption coefficient results coming less after adding nanofibrous mat in the SMS nonwoven?

First I have prepared a sample with spunbonded-melt blowned-spunbonded (SMS) nonwoven structure. After that I produced nano mat from different polymers on PET substrate. Finally I added this nano...

20 June 2021 1,878 1 View

Where can I find life cycle inventory or assessment of non woven materials?

Dear network, I am looking for the LCA or LCI or at least the energy balances of the non woven fabrics process for my master project, in specific for natural fibers, yet I have found...

02 March 2021 10,246 1 View

Can anyone recommend vendors selling nonwoven fabrics for ultrafiltration membrane supporting materials?

Hello, I am planning to coat membrane casting solution onto a supporting material. However, it is quite difficult to find a suitable membrane support material. Most of vendors sell nonwoven...

24 August 2020 9,644 4 View

How to prepare my sample for fluorescence imaging?

I want to use fluorescence microscopy to study fibroblasts grown on electrospun mats. Although such experiments are widely described in the literature, I faced a problem. We usually immerse the...

07 July 2020 9,464 4 View

How to avoid hole forming on casting CNT film on nonwoven?

I use 3wt% CNT suspension to knife casting on nonwoven membrane. After CNT suspension dried, there will be some hole with about 50 micrometer in diameter. I think that these holes might caused by...

06 May 2020 9,015 3 View

The appropriate value of toruosity set during measurements of pore size on porometer devices based on bubble-point method for fibrous materials?

When I use porometer (anton-paar) to determine maximum, mean and minimum pore size for fibrous layers in the form of membrane - often including nanofibers - as an input data I put tortuosity...

21 July 2019 7,793 0 View

Using electrospun membranes for water treatment?

Electrospun membranes appear to be increasingly popular for water treatment applications. I under how they are fabricated, etc but Im not quite how they are used, I would be grateful if someone...

07 February 2019 2,371 1 View

Using electrospun membranes for water treatment?

Electrospun membranes appear to be increasingly popular for water treatment applications. I under how they are fabricated, etc but Im not quite how they are used, I would be grateful if someone...

01 February 2019 3,838 2 View