Materials included a polyimide (PI) sheet (Kapton HN, thickness: 125 μm, McMaster-Carr), polyamic acid (PAA; 80% N-methyl-2-pyrrolidone/20% aromatic hydrocarbon, Sigma-Aldrich), cobalt chloride hexahydrate (CoCl2·6H2O, Sigma-Aldrich), poly(vinyl alcohol) (PVA; Mw: 89 000–98 000, >99% hydrolyzed, Sigma-Aldrich), potassium hydroxide pellets (KOH; Sigma-Aldrich), phosphoric acid solution (H3PO4; 85 wt%, Sigma-Aldrich), and deionized water (DIW; Sigma-Aldrich).
Phosphoric acid solution h3po4
Manufactured by Merck Group
Sourced in Germany
Phosphoric acid solution (H3PO4) is a clear, colorless liquid chemical compound. It is a common laboratory reagent used for various scientific and industrial applications. The core function of this solution is to provide a source of phosphoric acid, which is often utilized in analytical, research, and manufacturing processes.
Automatically generated - may contain errors
Lab products found in correlation
Acetonitrile, by Avantor (2 mentions)
Milli q purification system, by Merck Group (2 mentions)
Cobalt chloride hexahydrate cocl2 6h2o, by Merck Group (1 mentions)
Poly vinyl alcohol pva mw, by Merck Group (1 mentions)
Sodium borohydride powder, by Merck Group (1 mentions)
Acetone, by Thermo Fisher Scientific (1 mentions)
Sulphuric acid h2so4, by Merck Group (1 mentions)
Kmno4, by Avantor (1 mentions)
Hydrogen peroxide h2o2, by Avantor (1 mentions)
Hydrochloric acid (hcl), by Merck Group (1 mentions)
Tetraethyl orthosilicate, by Thermo Fisher Scientific (1 mentions)
Ammonium hydroxide, by Thermo Fisher Scientific (1 mentions)
Aluminum powder, by Thermo Fisher Scientific (1 mentions)
Aluminum foil, by Merck Group (1 mentions)
Magnesium chips, by Merck Group (1 mentions)
Phosphate buffered saline (pbs), by Merck Group (1 mentions)
Ibuprofen, by Merck Group (1 mentions)
Ellman s reagent, by Merck Group (1 mentions)
Trichloroacetic acid tca, by Merck Group (1 mentions)
1 1 3 3 tetramethoxypropane tmp, by Merck Group (1 mentions)
5 protocols using phosphoric acid solution h3po4
1
Polyimide-Based Sensing Membrane Fabrication
2
Graphite Powder Oxidation Protocol
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Graphite powders were used as the starting material without any pre-treatment, sulphuric acid (H2SO4, ACS reagent, 95.0–98.0%), phosphoric acid solution (H3PO4, 85 wt%), hydrochloric acid (HCl, ACS reagent, 37%), CS reagent l -ascorbic acid, ≥99%, sodium borohydride powder, ≥98.0%, and ACS reagent sodium carbonate powder, ≥99.5% were purchased from Sigma-Aldrich. Hydrogen peroxide (H2O2, ACS reagent, 30%) and ACS potassium permanganate (KMnO4) were purchased from VWR for the GO preparation. Acetone, >99.5%, and ACS grade reagent alcohol 94.0–96.0% were purchased from Fisher Scientific and used for washing processes.
3
Synthesis and Drug Loading of Stöber Silica Nanoparticles
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Materials. Tetraethyl orthosilicate (TEOS, 99.9%), ammonium hydroxide (NH4OH, 28%), magnesium -325 mesh powder (Mg, 99.8%), and aluminum powder (Al, 99.5%) were purchased from Alfa Aesar. Calcium (Ca, 99%), phosphate buffered saline (pH 7.4), ibuprofen (≥ 98%), magnesium chips (Mg, 99.98%), magnesium foil (Mg, 99.9%), aluminum granules (Al, 99.7%), aluminum foil (Al, 98%), dialysis sacks and phosphoric acid solution (H3PO4, 85%) were purchased from Sigma-Aldrich. Sodium chloride (NaCl, 99%) was purchased from Chimiques ACP Chemicals Inc. Hydrochloric acid (HCl, 36.5-38.0%) was purchased from Anachemia. Water (≥18.2 MΩ cm resistivity) was obtained from a Barnstead E-Pure system. All the reagents were used as received without further purification.
Synthesis of Stӧber silica NPs. 3.00 mL of 28% NH4OH was added to 50.0 mL of 95% EtOH and stirred together for 5 min, followed by the addition of 1.50 mL of TEOS. The reaction was stirred at 18 °C for 12 h (ambient humidity was recorded to be 82%). The silica product was collected by centrifuging at 3300 rpm for 15 min. The solid white product was washed three times with EtOH and dried overnight in an oven at 80 °C. Drug loading and release. Si-NPs (25 mg) were treated with 10 mL of 49% hydrofluoric acid solution for 15 min and collected via centrifugation.
Synthesis of Stӧber silica NPs. 3.00 mL of 28% NH4OH was added to 50.0 mL of 95% EtOH and stirred together for 5 min, followed by the addition of 1.50 mL of TEOS. The reaction was stirred at 18 °C for 12 h (ambient humidity was recorded to be 82%). The silica product was collected by centrifuging at 3300 rpm for 15 min. The solid white product was washed three times with EtOH and dried overnight in an oven at 80 °C. Drug loading and release. Si-NPs (25 mg) were treated with 10 mL of 49% hydrofluoric acid solution for 15 min and collected via centrifugation.
4
Analytical Reagents for Glutathione Assay
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All chemicals and reagents used in this study were of analytical purity, being purchased from different providers: acetonitrile was purchased from VWR International, SAS, Fontenay-sous-Bois, France, anhydrous disodium phosphate (Na2HPO4), and 85% phosphoric acid solution (H3PO4) were purchased from Merck KGaA (Darmstadt, Germany). The Ellman’s reagent, trichloroacetic acid (TCA), ethylenediaminetetraacetate (EDTA-Na2) powder, sodium chloride (NaCl) powder, phosphate buffer solution (PBS), GSH and GSSG powders were all purchased from Sigma-Aldrich (Darmstadt, Germany). Ultra pure water was obtained using the Milli-Q purification system (Merck Millipore Corporation, Burlington, MA, USA).
5
Quantification of Malondialdehyde in Samples
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All chemicals and reagents were analytically pure, and they were purchased from different providers: acetonitrile (VWR International, S.A.S., Fonteney-sous-Bois, France), anhydrous disodium phosphate (Na₂HPO₄), and 85% phosphoric acid solution (H3PO4) were purchased from Merck KGaA (Darmstadt, Germany). Thiobarbituric acid (98%) and phosphate buffer solution (PBS) were purchased from Sigma-Aldrich (Darmstadt, Germany). Sulfuric acid solution (H2SO4) (96%) was purchased from Chemical Company (Iasi, Romania). For the preparation of MDA standard solutions, 1,1,3,3-Tetramethoxypropane (TMP, 99%, Sigma Aldrich, Shanghai, China) was used [21 (link),22 (link)]. Ultra pure water was obtained using a Milli-Q purification system (Merck Millipore Corporation, Burlington, MA, USA).
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