NH4F, like HF, will etch silica. Will it etch titania as well?
Propably yes, due to hydrolysis of NH4F, although I have never done this, so I'm not sure.
Standard reagents (H2SO4, antimony, molybdate then ascorbic acid). Normal samples (water washed biochar, which would remove some salts plus a few nutrients, thus the PO4 test). Instant reaction...
29 May 2024 1,965 3 View
I want to know the theories for addressing challenges encountered in the implementation of HRMIS/HCMIS/HRIS in Tanzania. Are they flexible in Tanzanian context?
17 May 2024 954 1 View
Clear and Tinted packaging of cosmetics ,medicine and even oils used in cooking are susceptible to photo-oxidative degradation of the contents. Even food that contains lipids and fatty acids and...
27 December 2023 4,794 5 View
We have seen plastic imports like catheters from China that are toxic to patients. We have seen major legal court cases related to hernia mesh, trans vaginal mesh. Threats from polyester urethane...
24 December 2023 6,893 0 View
Current limits on both compression molded and injection molded black pigmented polyproylene is 1,000 hours at 150C using ASTM Circ.Oven on suspended plaques. The correlation of conventional O.I.T....
24 December 2023 1,015 0 View
The PET bottle industry use injection molded preforms to blow mold 2 liter and smaller bottles for soda and other drinks including water. Formation of toxic acetaldehyde that is reported to affect...
24 December 2023 8,757 8 View
The science of blue light wavelengths have received little attention until late. We are speaking of wavelengths from around 400-495nm this also encompasses indigo. However, the most interesting...
24 December 2023 6,444 0 View
I currently have the data on the number of units of animals(cow,pig,sheep etc..) and the amount of dung they produce per day
15 November 2023 1,288 2 View
#SARSCoV2 is airborne - I am interested in finding the most recent / definitive research into its nature and protection from transmission. Thank you.
06 August 2023 3,881 1 View
Hi all, Hope you are well. I was wondering if someone could point me in the right direction of methods for protein knock in on a primary human cardiomyocyte cell line? I am not sure what would be...
18 May 2023 5,660 1 View
Hello, I am currently working with Malaria Pf/Pan nitrocellulose membranes coated for malaria detection. After drying the coated membranes in an Incubator (overnight at 37°C), I've noticed that...
16 July 2024 7,937 1 View
Hi to all of you! My goal is to create synthetic silica beads. These beads ought to have a specified size. Could someone please advise on how to proceed or give me the articles I need to finish my...
02 July 2024 8,170 1 View
Hello, I want to load Remedesivir (RNA polymerase inhibitor) into mesoporous nanoparticles (MSNs). The issue is drug is temperature and pH sensitive and it degrades quickly. I need advice on its...
01 July 2024 889 3 View
Hello! I am planning to collect plant leaf samples for stable isotope analysis. I will be collecting them from the field and storing fresh tissue on ice. I have heard that bringing along a food...
01 July 2024 9,125 1 View
Whenever I mill silica gel with other materials in stainless steel milling jar, the color of the powder goes from white (initial) to dark and darker color like yellow, dark yellow, brown, dark...
16 June 2024 3,984 3 View
Kindly suggest whether hydrophobic coating of silica naoparticles can be obtained on Glass substrate without reagent using Stober process?
29 May 2024 8,773 1 View
I want to know about water contact angle of silica films without using any surfactants.
29 May 2024 4,526 3 View
at the preparation of the C18 alkyl silica, the paper used n-pentanol to dissolve PVP, in my lab I have 1- butanol. Could it be the same?
20 May 2024 5,933 1 View
When Silica gel added in acetone, Silica gel not dissolved in acetone, but acetone form a light blue color solution , why ?
17 May 2024 4,351 0 View
We extracted PAHs from soil with acetone and then we used silica gel for clean up process , but after cleanup we found blue solution. if we used hexane, no color changed. Is this color compound...
16 May 2024 3,288 1 View