Chemical Engineering Jobs

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Fixed-Price - Expert ($$$) - Est. Budget: $1,000 - Posted
Looking for an experienced chemist/chemical engineer to help me develop shape memory polyurethane foams according to customers' requirements. Must be experienced in synthesisation of plastic and foam polymers and should have a background in creating polyurethane foams. This is a 1 - 3 month project and you will be working with me in order to work out chemical formulations in order to create the right product. Experienced in polymer research would be an advantage.
Skills: Chemical Engineering Chemistry Scientific Research
Fixed-Price - Expert ($$$) - Est. Budget: $5,000 - Posted
Prestained slides are prevalent in the market. These slides are coated with various solutions and are dried so that the user can perform quick and fast testing. One such slide can be found here: This slide is coated with a mixture of methylene blue and cresyl violet such that when blood is smeared on the slide, the white blood cells in the smear stain blue. The task is to reverse engineer the stain coated on the prestained cell vu slide. This involves experimenting with different solvents, different concentrations of methylene blue and cresyl violet, and different drying techniques. Completion of the task will be denoted when the proper stain is uniformly dried on a slide such that when it interacts with blood, it stains white blood cells blue just as the cell vu slide does within a reasonable time (~6 minutes). This can be determined by placing a drop of blood on the slide and placing a coverslip on top of it. After 6 minutes, the white blood cells should have stained blue. The pre-stained slide should be stable/dry - once coated with your dye, it should be able to stay as such for multiple days in a dry container and then be pulled out for use when needed for White Blood Cell staining. Some guidances that may be of use: -A now public patent protocol/procedure about a similar dye (we haven't fully explored this yet, so it might be worth checking this out as a first try after tinkering with the Cell Vu's): Materials (other than the general lab space/equipment + Microscope which you will need, we can ship many of these to you if hired): -Cell Vu slides for a base case/gold standard comparison -Methylene Blue -Cresyl Violet -Other chemicals and solvents you may need (ethanol etc.) -Microscope (powerful enough to see blood cells on slide) -Microscope Slides for coating the dye -Cover slip. -Lancets: we've been pricking ourselves using standard diabetes lancets for a small drop sample of blood that's placed on the slide and then squished with a cover slip. This is a relatively simple/quick/safe way to test, but if you dislike a simple needle, you can also use pre-collected EDTA coagulated blood (this will take a while to arrive though -General lab equipment to experiment with your dye! Deliverables: -Specific protocol with concentrations, chemicals, drying mechanisms, and timing (ie. leaving overnight, 6 hours etc.) of methylene blue and cresyl violet. Basically a specific procedure to replicate how you've been able to create the dye + coat it on the slide. -Images of slide, both regular and under microscope indicating stained blood cells. Similar to the image attachment "blood_stain.jpg" below. Note this is at a low magnification (you should confirm at higher magnifications for White blood cell characteristics). Bonus: -Platelet Staining - if you can get the stain to work on Platelets along with White Blood Cells, a $2000 bonus. -Microchannel - will explain more of this later (if applicable), $2000 bonus.
Skills: Chemical Engineering Biology Chemistry
Fixed-Price - Expert ($$$) - Est. Budget: $150 - Posted
Hello, I am looking for someone with experience in developing formulations for tablets. We have 1 single active ingredient and need to develop both a sustained release tablet as well as a flavored chewable tablet. We will need for you to provide us with the correct excipients, mixing procedure and tableting procedure to develop a high quality tablet. Below are the characteristics we are looking for: Sustained release tablet: - Sustained release over 8 hour period - Shiny (Not Dull, Optional) - Durable, Will not crumble easily - Will withstand transportation Chewable Tablet: - Colored Tablet - Chewable - Durable and can withstand rigorous shipping and transportation - Will not crumble easily - Shiny Coating (Optional)
Skills: Chemical Engineering Chemistry
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
I am seeking an expert color cosmetic chemist who is experienced in formulating liquid to matte lipstick and reverse engineering. You must be knowledgeable fda regulations for ingredients that can be used in lip products in the united states. Must be able to use only non animal derived ingredients. You must be willing to sign a NDA. I will need manufacturing instructions, formulation and samples.
Skills: Chemical Engineering Chemistry Product Development Research
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I need a person that specialize in Nano technology. I need convert certain compounds to the Nano size to become water soluble and to be more absorbable by humans. I need an outline how to do the processes and the equipment required. Example of a company doing what am trying to do. CBD NanoUltra CBD Nano Ultra is a water-based concentrate that can easily be added to any water-soluble product such as water and beverages. Through advanced physics and chemistry, Isodiol uses ion-sized nutrients (the size that can move through cells’ membranes) and cleverly encases them with water molecules. Due to this incredible technology, people have reported faster response times with great results. Nano-materials are tiny particles measured in nanometers, or billionths of a meter. Due to their incredibly small size, nano-particles ingested in food and water are fundamentally different and can move throughout the body in advanced ways. Experts on nanotechnology are virtually unanimous that nanoscale materials have the potential for health effects that are uniquely different from the same substances comprised of larger-sized molecules. Nano-materials are already being added to foods, supplements and cosmetics.
Skills: Chemical Engineering Biotechnology Chemistry
Fixed-Price - Intermediate ($$) - Est. Budget: $40 - Posted
Looking for a talented chemical engineer with flavor for transport phenomena: You will be working with university assignment (master grad), something like the attached file. I require that you have good English, mathematical, thermodynamic skills and an excellent transport phenomena understanding. It is a master grade assignment, so you should either have a practical or theoretical knowledge of the subject. You will have two weeks to do the job. If you have any question, feel free to contact me. ​
Skills: Chemical Engineering Chemistry COMSOL Multiphysics English
Fixed-Price - Intermediate ($$) - Est. Budget: $20 - Posted
I need formula to calculate how much (volume) air will get trough a film of IPA (isopropyl alcohol). At room temperature, film thickness (usually below 0,2mm, IPA is technically enclosed in PP membrane). p1 is given, air supply on p1 side. Please see the drawing.
Skills: Chemical Engineering Chemistry