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7 protocols using molybdenum disulfide

1

Synthesis of Polyphenol-Functionalized Nanocomposite

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Vinyl pyrrolidone (VP), iron (III) chloride hexahydrate (FeCl3·6H2O), sodium acetate, malonic acid (MA), and molybdenum disulfide (MoS2) were purchased from Sigma Chemical Co. (St. Louis, MO, USA). Acetic acid and ethylene glycol were procured from Duskan Pure Chemical (Kyungki-do, Korea). Methanol and ethanol were acquired from Fisher Scientific (Seoul, Korea). Ammonium persulfate (APS), 3-methacryloxypropyltrimethoxysilane (MPS), Ethylene glycol dimethacrylate (EGDMA), and 2-methylpropionitrile (AIBN) were purchased from Daejung Chemicals & Metals (Gyonggido, Korea). The standard chemicals of (+)-catechin (C, ≥98%), (−)-epicatechin (EC, ≥90%), (−)-epigallocatechin (EGC, ≥95%), (−)-epicatechin gallate (ECG, ≥95%), and (−)-epigallocatechin gallate (EGCG, ≥98%) were supplied by Tokyo Chemical Industry (Tokyo, Japan). All other solvents used in the experiment were either of HPLC or analytical grade.
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2

Synthesis of Polypropylene Composites

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Molybdenum disulfide (MoS2, ~6 μm), n-butylmagnesium chloride (BuMgCl, 2.0 M in THF), triethylaluminum (TEA, 1.0 M in hexane), diisobutylphthalate (DIBP), and titanium tetrachloride (TiCl4, >99%) were purchased from Sigma-Aldrich (Seoul, Korea) and used as received. Cyclohexylmethyldimethoxysilane (CHMDMS) donor and polymerization-grade propylene were received from Korea Petrochemical Ind. Co., Ltd., Ulsan, Korea. n-Hexane was distilled from sodium/benzophenone under N2 prior to use.
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3

Biomaterial Synthesis and Cell Culture

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Sodium alginate was purchased
from Sigma-Aldrich (Steinheim Albuch,
Germany). Molybdenum disulfide was purchased from Sigma-Aldrich (St.
Louis, MO). Casein, sodium bicarbonate, and magnesium chloride hexahydrate
were obtained from HiMedia Laboratories (Nashik, India). Calcium chloride,
dipotassium hydrogen phosphate, hydrochloric acid, potassium chloride,
sodium chloride, and sodium sulfate were purchased from Sigma-Aldrich
(Bangalore, India). Ethanol was procured from Changshu Hongsheng Fine
Chemicals Co., Ltd. (Yangyuan, China). MG-63, C2C12, and MC3T3-E1
cells were procured from the National Centre for Cell Science (NCCS),
Pune, India. Dulbecco’s Modified Eagle’s Medium (DMEM),
phosphate-buffered saline (PBS), antibiotic–antimycotic solution,
and l-glutamine were purchased from Gibco, Thermo Scientific
(MA).
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4

Synthesis and Characterization of MoS2-Based Anode for Lithium-Ion Batteries

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Titanium (IV) isopropoxide (TTIP, 97%), sodium molybdate dihydrate (Na2MoO4*2H2O, 99.5%), thiourea (CS(NH2)2, 99%), lithium hexafluorophosphate (LiPF6, 99.99%), ethylene carbonate (EC, 99%), dimethyl carbonate (DMC, 99%) and molybdenum disulfide (MoS2, 98%) were purchased from Sigma-Aldrich (Poland). Lithium foil (0.75 mm thick, 99.9%) was supplied by Sigma-Aldrich. Acetylene Black (AB, 99.9%), poly(vinylidene fluoride) (PVdF, MW = 180,000) and N-methyl-2-pyrrolidinone (NMP, 99.5%) were purchased from Fluka. Deionized water was used in all experiments. All reagents were used without any further purification.
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5

Fabrication of Conductive Silicone Rubber

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The silicone rubber was condensation-cured one-component room-temperature vulcanized (RTV)-silicone rubber (SR, grade KE-441) purchased from Shin-Etsu Company, Tokyo, Japan. The catalyst (CAT-RM) for room-temperature vulcanization was provided by the same company. The RTV-thinner was purchased from Shin-Etsu Company, Tokyo, Japan. Molybdenum disulfide (particle size < 2 μm) was purchased from Sigma-Aldrich. Nanocarbon black (NCB, Conductex SC Ultra grade, electrical conductivity = 2.5 S/cm [36 (link)]) was purchased from Saehan Silichem Corporation, Ltd., Seoul, Republic of Korea. All materials were used as received.
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6

Molybdenum Disulfide-Based Electrochemical Sensing

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Molybdenum disulfide, pluronic
P123 poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) triblock copolymer (PEO20PPO70PEO20), 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulfonic
acid (ABTS), and hydrogen peroxide (H2O2) were
purchased from Sigma-Aldrich. Cytochrome c from horse
heart and sodium phosphate monobasic (anhydrous) and sodium phosphate
dibasic (anhydrous) used to prepare phosphate buffer (PB) solution
were purchased from Sisco Research Laboratories (SRL), India. All
the reagents were used as received without further purification.
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7

Fabrication of MoS2-Epoxy Nanocomposites

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Molybdenum disulfide (MoS2, ∼6 μm), n-butyllithium (2.5 M in hexane), melamine (99%), polypropylenglycol diglycidyl ether (PPGDGE, Mn ≈ 640) and polyoxypropylene diamine (D230, Mn ≈ 640) were purchased from Sigma-Aldrich and used as received. EP resin (EPON 828) was obtained from Shell.
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