Fumed silica powder

Manufactured by Merck Group

Fumed silica powder is a fine, white, amorphous form of silicon dioxide (SiO2) produced through the high-temperature hydrolysis of silicon tetrachloride. It is characterized by a high specific surface area, low bulk density, and thixotropic properties. The core function of fumed silica powder is to act as a reinforcing filler, thickening agent, and rheology modifier in various applications.

Automatically generated - may contain errors

Lab products found in correlation

5 protocols using fumed silica powder

Caco-2 Cell Culture and Compound Treatments

Check if the same lab product or an alternative is used in the 5 most similar protocols

Caco-2 cells, a human epithelial colorectal adenocarcinoma cell line, were maintained in α-minimal essential medium (Sigma, St. Louis, MO), supplemented with 15% fetal bovine serum (HyClone Labs, Logan, UT), 100 units/mL penicillin, and 100 μg/mL streptomycin (Sigma) in a humidified incubator at 37°C, with an atmospheric composition of 95% air and 5% CO₂. In treatment experiments cell culture medium contained 10% delipidated serum. Lipid was removed from serum by incubation with fumed silica powder (0.007 µm) as described by the manufacturer (Sigma, St. Louis, MO). Cells were exposed to Lovastatin (10 µM), BNF (10 µM), TCDD (10 nM), SGA360 (10 µM), SGA315 (10 µM) or carrier solution dimethyl sulfoxide (DMSO) for indicated time points. Enriched normal primary human hepatocytes were obtained through the Liver Tissue Cell Distribution System (University of Pittsburgh, PA). The isolated hepatocytes were seeded at ~90% confluence in 24-well collagen-coated dishes and cultured as previously described.²⁰

Muku G.E., Kusnadi A., Kuzu G., Tanos R., Murray I.A., Gowda K., Amin S, & Perdew G.H. (2019). Selective Ah receptor modulators attenuate NPC1L1-mediated cholesterol uptake through repression of SREBP-2 transcriptional activity. Laboratory investigation; a journal of technical methods and pathology, 100(2), 250-264.

+ Open protocol

+ Expand

Fabrication of Superhydrophobic Silica Nanoparticles

Check if the same lab product or an alternative is used in the 5 most similar protocols

FS was sprayed after spraying IPN. FS forms the superhydrophobic nanoparticle component that helps in repelling water as well as pathogens. The nanoparticles of FS were prepared by functionalizing fumed silica with organic fluorine precursor as shown in Figure S2 of the Supporting Information. In a round bottom flask, anhydrous chloroform (160 mL, Sigma‐Aldrich, ≥ 99%), and fumed silica powder (4 g, Sigma‐Aldrich, 7 nm) were added and purged with dry nitrogen for 40 min under mild stirring. Trichloro(1H,1H,2H, 2H‐perfluorooctyl)silane (0.95 mL, Sigma‐Aldrich, 97%) was added to the reaction mixture. The flask, necks of which sealed with rubber stoppers was left to progress for 48 h under 500 rpm stirring. After this, obtained FS was washed in 4 cycles of chloroform and then left to dry in a fume hood at room temperature for 48 h. The FS particles formed were then suspended in analytical grade acetone at a concentration of 20 mg mL⁻¹ and ultrasonicated for 2 h to form a finely dispersed and sprayable solution.

Ashok D., Taheri M., Garg P., Webb D., Parajuli P., Wang Y., Funnell B., Taylor B., Tscharke D.C., Tsuzuki T., Verma N.K., Tricoli A, & Nisbet D.R. (2022). Shielding Surfaces from Viruses and Bacteria with a Multiscale Coating. Advanced Science, 9(23), 2201415.

+ Open protocol

+ Expand

Caco-2 Cell Culture and Compound Treatments

Check if the same lab product or an alternative is used in the 5 most similar protocols

+ Open protocol

+ Expand

Synthesis of Cesium Lead Halide Perovskite Nanocrystals

Check if the same lab product or an alternative is used in the 5 most similar protocols

1-Octadecene (ODE, tech, 90%), oleic acid
(OA, tech, 90%), oleylamine (OLA, tech, 70%), iodine (I₂, 99.8%), lead(II) iodide (PbI₂, 98%), cesium carbonate
(Cs₂CO₃, 99%), lead acetate trihydrate (Pb(OAc)₂·3H₂O, 99.99%), sodium iodide (NaI, 99.99%),
benzoyl chloride (C₆H₅COCl, 98%), trimethyliodosilane
(TMSI, (CH₃)₃SiI 97%), m ethyl acetate (CH₃COOCH₃, anhydrous, 99.5%), toluene (TOL, anhydrous,
99.8%), ethyl acetate (CH₃COOC₂H₅, fumed silica powder (SiO₂), and hexane (99.8%) were
purchased from Sigma-Aldrich. Didodecyldimethylammonium chloride
(DDACl, 98.0%) and didodecylamine were purchased from TCI. All reagents
were used as received without any further experimental purification.

Livakas N., Toso S., Ivanov Y.P., Das T., Chakraborty S., Divitini G, & Manna L. (2023). CsPbCl3 → CsPbI3 Exchange in Perovskite Nanocrystals Proceeds through a Jump-the-Gap Reaction Mechanism. Journal of the American Chemical Society, 145(37), 20442-20450.

+ Open protocol

+ Expand

Synthesis of Tin Oxalate and Germanium Dioxide

Check if the same lab product or an alternative is used in the 5 most similar protocols

Fumed silica powder (0.007 μm), sodium
hydroxide (≥ 98%), tin(II) chloride dihydrate (98%), and oxalic
acid dihydrate (≥ 99%) were obtained from Sigma-Aldrich. Tin(II)
oxalate (98%) was obtained from Alfa Aesar. Amorphous germanium dioxide
was obtained from Gerald Wise & Co. Ltd. (now defunct).

Parsons D.S., Nearchou A, & Hriljac J.A. (2022). Crystal Structures of a Cubic Tin(II) Germanate, α-Sn6GeO8, and a Tetragonal Tin(II) Silicate, γ-Sn6SiO8. Inorganic Chemistry, 61(37), 14695-14704.

+ Open protocol

+ Expand

About PubCompare

Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.

We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.

However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.

Ready to get started?

Revolutionizing how scientists
search and build protocols!