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Cetyltrimethylammonium bromide

Cetyltrimethylammonium bromide is a cationic surfactant commonly used in various laboratory applications. It functions as a detergent, emulsifier, and phase transfer agent.

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4 protocols using cetyltrimethylammonium bromide

1

Synthesis of Multifunctional Metal-Organic Nanostructures

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Gold(III)
chloride trihydrate (HAuCl4·3H2O, 99%),
cetyltrimethylammonium bromide (CTAB),
2-methylimidazole (2-MIM, 99%), zinc nitrate hexahydrate (Zn(NO3)2·6H2O, 99%), polyvinylpyrrolidone
(PVP, K30), and methanol (AR grade, 99.9%) were purchased from Shanghai
Macklin Biochemical Co., Ltd. Silver nitrate, ascorbic acid, and sodium
borohydride were bought from Sinopharm Chemical Reagent Co., Ltd.
5-Bromosalicylic acid was supplied by Shanghai Aladdin Biochemical
Technology Co., Ltd. All the chemicals were used as received without
further purification. Ultrapure water (Millipore Milli-Q grade) with
a resistivity of 18.2 MΩ was used in all the experiments.
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2

Synthesis and Evaluation of Functional PET Membranes

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The polyethylene terephthalate (PET) nonwoven substrate was obtained from Iris International Trading Co., Ltd. The PVDF powder (Mw ~ 534,000), the QA agent, i.e., [2-(methacryloyloxy)ethyl]trimethylammonium chloride (75 wt% in H2O, CAS #5039-78-1), and organic solvents including dimethylformamide (DMF) and acetone, were purchased from Sigma-Aldrich. The polyethylene-polyamines (PEPA), and the organic and inorganic competitors, cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), octanoic acid (OA), 3-(perfluorobutyl)propanol (3-PP), Bovine serum albumin (BSA) and inorganic salts; as well as the feed stocks and analytical standards of PFOA and potassium perfluorooctanesulfonate, were ordered from Shanghai Macklin Biochemical Co., Ltd. The Suwannee river humic acid (3S101H) and fulvic acid substances (2S101F) were obtained from the International Humic Substances Society.
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3

Multifunctional Nanocarriers for Targeted Drug Delivery

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All reagents were of analytical or HPLC grade and used without any further purification. Tetraethyl orthosilicate (TEOS), cetyl trimethyl ammonium bromide (CTAB), branched polyethyleneimine (PEI) (Mw = 10 kDa), (3-aminopropyl) triethoxysilane (APTES), and sodium dodecyl sulfate (SDS) were purchased from Macklin. Co., Ltd. Fluorescein isothiocyanate isomer (FITC), Simvastatin (SIM), hyaluronidase (HAase), N-hydroxy succinimide (NHS), 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC), Resazurin, 4,6-diamidino-2-phenylindole (DAPI), and lipopolysaccharide (LPS) were purchased from Sigma-Aldrich Inc. (St. Louis, MO, USA). Sodium hyaluronate (HA) (Mw = 200~400 kDa) was purchased from Bloomage Biotechnology Co., Ltd. (Jinan, China). Oxidized low-density lipoprotein (ox-LDL) was purchased from Yiyuan Biotechnology Co., Ltd. (Bozhou, China). Phosphate buffer tablets were purchased from Amresco Inc. (Cleveland, OH, USA). The mouse ELISA kits to measure the secretion of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels were purchased from Beyotime Biotechnology Co., Ltd. (Shanghai, China).
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4

Preparation and Characterization of Biomolecule-Ionic Liquid Complexes

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HFIP was purchased from Aladdin Chemistry Co., Ltd. (Shanghai, China). Choline chloride (ChCl), tetrabutylammonium chloride (TBAC), cetyltrimethylammonium bromide (CTAB), salmon sperm DNA sodium salt, ribonucleic acid (yeast) (RNA) and BSA were purchased from Macklin (Shanghai, China). (NH4)2SO4, K2HPO4, KH2PO4, Na2CO3, Na2HPO4, Na2SO4, MgSO4, hydrochloric acid (HCl), ammonia solution (25–28%, w/v) and ethylenediaminetetraacetic acid disodium salt dehydrate (EDTA-Na2·2H2O) were purchased from Sinopharm Chemical Reagent, Co., Ltd. (Shanghai, China). Tris-hydrochloride (Tris-HCl) was purchased from Guangzhou Saiguo Biotech Co., Ltd (Guangzhou, China). All other chemicals used were of analytical reagent grade and were not further purified unless otherwise indicated. Deionized water (18.25 MΩ) was used in all experiments.
Human whole blood samples from healthy volunteers were provided by the Wuhan Children's Hospital (China). Appropriate amounts of anticoagulant were added to the blood samples which were then stored at −20 °C until use.
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