All reagents were analytical reagent grade and used without further purification. Atorvastatin (as calcium trihydrate), losartan, and valsartan were provided from Darou Pakhsh Pharmaceutical Company (Tehran, Iran). HPLC–grade water, methanol, and acetonitrile were supplied from Caledon (Canada). Deionized water was from Ghazi Pharmaceutical Company (Tabriz, Iran). Phosphoric acid, triethylamine, ammonia, sodium chloride, pyridine, hydrochloric acid, and sodium hydroxide were from Merck (Darmstadt, Germany). Ferric chloride hexahydrate (FeCl3.6H2O) (99.0%–102.0%) and ferrous sulfate heptahydrate (FeSO4.7H2O) (99.5%–102.0%) were purchased from Merck (Darmstadt, Germany) and used in the synthesis of Fe3O4 NPs. Toluene and ethanol were obtained from Fluka (Switzerland). Octyltrimethoxy silane (OTMOS) and tetraethoxy silane (TEOS) with purity of 96% and 98%, respectively, were purchased from Sigma–Aldrich (St. Louis, MO, USA). A magnet (10 × 10 × 0.5 cm) was used in separation of MNPs. Stock solution of each drug (1000 mg L−1) was prepared in methanol and stored in a refrigerator at 4°C. A working standard solution (20 mg L–1 of each analyte) was prepared in HPLC–grade water by adding appropriate volumes of the stock solutions. This solution was used in preparation of the dilute solutions of the analytes.
Tetraethoxysilane teos
Manufactured by Merck Group
Sourced in United States, Germany
Tetraethoxysilane (TEOS) is a colorless, volatile liquid chemical compound commonly used as a precursor for the production of silicon-based materials. It consists of a silicon atom bonded to four ethoxy (CH3CH2O-) groups. TEOS is widely employed in various industrial and technological applications, particularly in the field of thin-film deposition and material synthesis.
Automatically generated - may contain errors
Lab products found in correlation
Sodium hydroxide (naoh), by Merck Group (4 mentions)
Hydrochloric acid (hcl), by Merck Group (2 mentions)
Sodium chloride (nacl), by Merck Group (2 mentions)
Dopamine hydrochloride, by Merck Group (2 mentions)
Chloroplatinic acid, by Merck Group (2 mentions)
Hydrofluoric acid, by Sinopharm (2 mentions)
Ammonium hydroxide solution, by Sinopharm (2 mentions)
Ethanol etoh, by Sinopharm (2 mentions)
Sodium borohydride, by Sinopharm (2 mentions)
Trifluoroacetic acid, by Merck Group (2 mentions)
Ammonium hydroxide nh4oh, by Merck Group (2 mentions)
3 aminopropyltriethoxysilane aptes, by Merck Group (2 mentions)
Ammonium nitrate nh4no3, by Merck Group (2 mentions)
Anhydrous toluene, by Merck Group (2 mentions)
3 aminopropyltrimethoxysilane, by Merck Group (2 mentions)
Methanol meoh, by Merck Group (2 mentions)
Pluronic p123, by Merck Group (2 mentions)
Ferrous sulfate heptahydrate, by Merck Group (1 mentions)
Phosphoric acid, by Merck Group (1 mentions)
Triethylamine, by Merck Group (1 mentions)
22 protocols using tetraethoxysilane teos
1
Synthesis and Characterization of Magnetic Nanoparticles
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All reagents were analytical reagent grade and used without further purification. Atorvastatin (as calcium trihydrate), losartan, and valsartan were provided from Darou Pakhsh Pharmaceutical Company (Tehran, Iran). HPLC–grade water, methanol, and acetonitrile were supplied from Caledon (Canada). Deionized water was from Ghazi Pharmaceutical Company (Tabriz, Iran). Phosphoric acid, triethylamine, ammonia, sodium chloride, pyridine, hydrochloric acid, and sodium hydroxide were from Merck (Darmstadt, Germany). Ferric chloride hexahydrate (FeCl3.6H2O) (99.0%–102.0%) and ferrous sulfate heptahydrate (FeSO4.7H2O) (99.5%–102.0%) were purchased from Merck (Darmstadt, Germany) and used in the synthesis of Fe3O4 NPs. Toluene and ethanol were obtained from Fluka (Switzerland). Octyltrimethoxy silane (OTMOS) and tetraethoxy silane (TEOS) with purity of 96% and 98%, respectively, were purchased from Sigma–Aldrich (St. Louis, MO, USA). A magnet (10 × 10 × 0.5 cm) was used in separation of MNPs. Stock solution of each drug (1000 mg L−1) was prepared in methanol and stored in a refrigerator at 4°C. A working standard solution (20 mg L–1 of each analyte) was prepared in HPLC–grade water by adding appropriate volumes of the stock solutions. This solution was used in preparation of the dilute solutions of the analytes.
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All reagents were analytical reagent grade and used without further purification. Atorvastatin (as calcium trihydrate), losartan, and valsartan were provided from Darou Pakhsh Pharmaceutical Company (Tehran, Iran). HPLC–grade water, methanol, and acetonitrile were supplied from Caledon (Canada). Deionized water was from Ghazi Pharmaceutical Company (Tabriz, Iran). Phosphoric acid, triethylamine, ammonia, sodium chloride, pyridine, hydrochloric acid, and sodium hydroxide were from Merck (Darmstadt, Germany). Ferric chloride hexahydrate (FeCl3.6H2O) (99.0%–102.0%) and ferrous sulfate heptahydrate (FeSO4.7H2O) (99.5%–102.0%) were purchased from Merck (Darmstadt, Germany) and used in the synthesis of Fe3O4 NPs. Toluene and ethanol were obtained from Fluka (Switzerland). Octyltrimethoxy silane (OTMOS) and tetraethoxy silane (TEOS) with purity of 96% and 98%, respectively, were purchased from Sigma–Aldrich (St. Louis, MO, USA). A magnet (10 × 10 × 0.5 cm) was used in separation of MNPs. Stock solution of each drug (1000 mg L−1) was prepared in methanol and stored in a refrigerator at 4°C. A working standard solution (20 mg L–1 of each analyte) was prepared in HPLC–grade water by adding appropriate volumes of the stock solutions. This solution was used in preparation of the dilute solutions of the analytes.
2
Rubber Nanocomposite Synthesis Protocol
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NR latex with a 60% dry rubber content was used as a raw material. The chemicals for rubber compounding, such as potassium oleate (K-oleate) as a surface active agent, sulfur as a crosslinking agent, zinc diethylthiocarbonate (ZDEC) as an accelerator, zinc 2-mercaptobenzothiazone (ZMBT) as an accelerator, Wingstay L (butylated reaction product of para cresol and dicyclopentadiene) as an antidegradant, diphenyl guanidine (DPG) as an accelerator, zinc oxide (ZnO) as an activator, and sodium silicofluoride (SSF) as an gelling agent, were purchased from the Rubber Research Institute, Bangkok, Thailand and dispersed in water. Tetraethoxysilane (TEOS), used as a silica precursor, and APTES, used as a modifying agent, were from Sigma-Aldrich (Saint Louis, USA). Ammonia solution (28 wt%), used as a basic catalyst, and absolute ethanol (EtOH), used as a solvent, were purchased from Qrec Chemical Ltd. (Chonburi, Thailand). All chemical reagents were used as received without purification.
3
Synthesis and Characterization of PBAT Composites
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Poly(butylene adipate-co-terephthalate) (PBAT) pellets were supplied by BASF. The melt flow index (MFI) (190 °C, 2.16 kg) was 3.3–6.6 g/10 min. A solution of methyl methacrylate (MMA) was purchased from Daejung Chemicals in Korea. Maleic anhydride (MA; 98%, Sigma-Aldrich, St. Louis, MO, USA) was recrystallized from chloroform and n-hexane. By crystallizing from methanol, the radical initiator of azobisisobutyronitrile (AIBN; 99%, Sigma–Aldrich, St. Louis, MO, USA) was purified. Tetraethoxysilane (TEOS) was received from Sigma–Aldrich in India. Daejung Chemicals in Korea supplied methyl benzene, ethyl acetate, ethanol, and N, N-dimethylformamide (DMF). All compounds were used as received. For the preparation of solutions and reactions, double-distilled water was used.
4
Dopamine-Functionalized Silica Nanocomposites
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Dopamine hydrochloride (DA·HCl, 98%), tetraethoxysilane (TEOS, A.R.), and chloroplatinic acid (H2PtCl6·6H2O, ≥37.50% Pt basis) were provided from Sigma-Aldrich. Hydrofluoric acid (40 wt%), ammonium hydroxide solution (28 wt%), ethanol (EtOH, A.R.), and sodium borohydride (A.R.) were purchased from Sinopharm Chemical Reagent. 4-nitrophenol (4-NP, A.R.) was purchased from Aladdin. The water used in the experiment was ultrapure water (18.2 MΩ cm−1).
5
Synthesis and Characterization of PEI-Functionalized Calcium Phosphate Nanoparticles
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The following chemicals were used: Branched poly(ethyleneimine) (PEI; M = 25 kDa; Sigma-Aldrich, USA), poly(ethylenimine)-Cy5 (PEI-Cy5; M = 25 kDa; Surflay, Germany), calcium lactate (p.a.; Merck), diammonium hydrogenphosphate (p.a.; Merck), tetraethoxysilane (TEOS; 98%, Sigma-Aldrich), and ammonia solution (30–33%, Carl Roth). Calcium hydrogen phosphate (CaHPO4·2 H2O), sodium hydroxide (NaOH), and poly(vinyl alcohol) (PVA) were purchased from Sigma-Aldrich. Poly(lactide-co-glycolide) (PLGA) with a molar ratio of 85:15 lactide to glycolide was obtained from Green Square Materials Inc. (Taiwan). Calcium carbonate was obtained from Scharlau Chemie (Spain). Dichloromethane was obtained from Alfa Aesar (Ward Hill, USA). Ultrapure water (Purelab ultra instrument from ELGA) was used for all preparations unless otherwise noted. All chemicals were of analytical grade and used without further purification.
For transfection experiments, the plasmid pcDNA3-eGFP (Mw = 4,056,360 g mol−1) that encodes for eGFP was prepared from Escherichia coli with a Nucleobond endotoxin-free plasmid DNA kit (Macherey-Nagel, Dueren, Germany).
For transfection experiments, the plasmid pcDNA3-eGFP (Mw = 4,056,360 g mol−1) that encodes for eGFP was prepared from Escherichia coli with a Nucleobond endotoxin-free plasmid DNA kit (Macherey-Nagel, Dueren, Germany).
6
Molecular Characterization of PTT
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Poly(trimethylene
terephthalate)
pellets with weight and the number average molecular weight about
78 000 and 34 000 g/mol, respectively, were received
from DuPont, and its viscosity of 0.85 dL/g was measured in dichloroacetic
acid at 23 °C. The molecular weight distribution was approximately
2.0. Tetraethoxysilane (TEOS) and trifluoroacetic acid were purchased
from Sigma-Aldrich Inc. All of the chemicals were used without further
purification.
terephthalate)
pellets with weight and the number average molecular weight about
78 000 and 34 000 g/mol, respectively, were received
from DuPont, and its viscosity of 0.85 dL/g was measured in dichloroacetic
acid at 23 °C. The molecular weight distribution was approximately
2.0. Tetraethoxysilane (TEOS) and trifluoroacetic acid were purchased
from Sigma-Aldrich Inc. All of the chemicals were used without further
purification.
7
Synthesizing Manganese-Doped Silica Nanoparticles
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Tetraethoxysilane (TEOS) is available from Sigma-Aldrich. Manganese permanganate (KMnO4), Na2CO3, ammonia, H2O2 solution (w/w: 30%) were brought from Sinopharm Chemical Reagent Co., Ltd. (China). Dopamine hydrochloride, methylene blue (MB) and ammonium bicarbonate (NH4HCO3) were provided by Aladdin (China). All experiments and buffer preparations were done using DI water. No further purification was performed on any of the reagents.
8
Synthesis of Organic Compounds with Diverse Reagents
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Almost of chemicals 9,10-Phenanthrenequinone (PTQ, 99%), trifluoroacetic acid (TFA, 99%), N-iodosuccinimide (95%), iodomethane (CH3I, 99%), benzoyl peroxide, bromine (99.99%), nitrobenzene, sodium hydrosulfite (Na2S2O4), dimethyl sulfoxide (DMSO, 99.9%), n-butyllithium (2.5 M in hexanes), diphenylmethane (99%), 4-bromobenzophenone (98%), p-toluenesulfonic acid monohydrate (98.5%), trimethyl borate (B(OCH3)3, 99%), tetraethoxysilane (TEOS), (3-aminopropyl) triethoxylsilane (APTES) and ammonium hydroxide (25 wt.% NH3 in water) were purchased from Sigma Aldrich (St. Louis, MO, USA). Tetrakis (triphenylphosphine)-palladium(0) (Pd(PPh3)4, 99%) were purchased from Tokyo chemical industry (Tokyo, Japan). Anhydrous magnesium sulfate (MgSO4), potassium hydroxide (KOH), potassium carbonate (K2CO3) are brought from Daejung chemical (Gyeonggi-do, South Korea). Sodium-metal and benzophenone were used to stir with tetrahydrofuran (THF) for several hours, to remove trace water, then dry THF could be distilled under dry argon before use.
9
Synthesis and Characterization of Fluorescent Cyclodextrin Nanoparticles
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The following chemicals were used as received: mono-(6-amino-6-deoxy)-beta-cyclodextrin was bought from Shandong Binzhou Zhiyuan Biotechnology Co., Ltd (Binzhou, China). Hyaluronic acid (HA, 95%), fluoresceinisothiocyanate (FITC, purity > 90%, Mw = 389.40), fluorescein sodium, phosphate buffer solution (PBS) and Arginylglycylaspartic acid(RGD) peptides-FITC (FITC-RGD & FITC-RGD-Ad) modified with fluoresceinisothiocyanate were obtained from Sinopharm Chemical Reagent Beijing Co., Ltd (Beijing, China). Cetyltrimethylammonium bromide surfactant (CH3(CH2)15N(CH3)3Br, CTAB), tetraethoxysilane (TEOS) and Poly(allylamine hydrochloride) (PAH, Mw = 15,000) were purchased from Sigma-Aldrich. 4,4′-diazostilbene-2,2′-disulfonic acid disodium salt (DAS), N-Hydroxysuccinimide (NHS) and 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) were purchased from Tokyo Chemical Industry (Shanghai) Development Co., Ltd (Shanghai, China). Only Ultra-pure water was used, in this study.
10
Dopamine-Functionalized Silica Nanocomposites
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Dopamine hydrochloride (DA·HCl, 98%), tetraethoxysilane (TEOS, A.R.), and chloroplatinic acid (H2PtCl6·6H2O, ≥37.50% Pt basis) were provided from Sigma-Aldrich. Hydrofluoric acid (40 wt%), ammonium hydroxide solution (28 wt%), ethanol (EtOH, A.R.), and sodium borohydride (A.R.) were purchased from Sinopharm Chemical Reagent. 4-nitrophenol (4-NP, A.R.) was purchased from Aladdin. The water used in the experiment was ultrapure water (18.2 MΩ cm−1).
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