Cobalt (II) nitrate hexahydrate (98%), iron (II) sulfate heptahydrate (98%), zinc nitrate hexahydrate (99%), 2-methylimidazole (99%) zinc acetate dihydrate (98%), Pt/C (20%), dopamine hydrochloride (99%), 3-tris (hydorxymethyl) aminomethane (99.8%-100.1%), sodium thiocyanate (98%), potassium hydroxide (99.98%), sodium acetate trihydrate (99%), glacial acetic acid (99.9985%), and zinc foil (99.994%) were purchased from Alfa Aesar. Methanol and ethanol were received from Beijing Chemical Work Co. in analytic grade (AR). All chemicals were used as received without further purification. Nafion® solution (5 wt%, DuPont) was obtained from commercial suppliers. Milli-Q ultrapure water (resistance of 18.2 MΩ·cm at 25 °C) was used for all experiments.
Zinc acetate dihydrate
Manufactured by Thermo Fisher Scientific
Sourced in United States, Germany, France
Zinc acetate dihydrate is a chemical compound used in various laboratory and industrial applications. It is a white crystalline solid that is soluble in water and alcohol. Zinc acetate dihydrate is a common source of zinc ions and is used as a reagent in chemical reactions, as a catalyst, and in the production of other zinc compounds.
Automatically generated - may contain errors
Lab products found in correlation
Ethanolamine, by Merck Group (2 mentions)
Sodium hydroxide (naoh), by Thermo Fisher Scientific (2 mentions)
Ethanol, by Thermo Fisher Scientific (2 mentions)
Hydroxylamine hydrochloride, by Thermo Fisher Scientific (2 mentions)
Ethanol, by Merck Group (2 mentions)
Zinc foil, by Thermo Fisher Scientific (1 mentions)
Potassium hydroxide, by Thermo Fisher Scientific (1 mentions)
Zinc nitrate hexahydrate, by Thermo Fisher Scientific (1 mentions)
2 methylimidazole, by Thermo Fisher Scientific (1 mentions)
Dopamine hydrochloride, by Thermo Fisher Scientific (1 mentions)
Sodium acetate trihydrate, by Thermo Fisher Scientific (1 mentions)
Iron 2 sulfate heptahydrate, by Thermo Fisher Scientific (1 mentions)
Cobalt 2 nitrate hexahydrate, by Thermo Fisher Scientific (1 mentions)
Sodium thiocyanate, by Thermo Fisher Scientific (1 mentions)
Glacial acetic acid, by Thermo Fisher Scientific (1 mentions)
Nafion solution, by DuPont (1 mentions)
N n dimethylformamide (dmf), by J&K Scientific (1 mentions)
Aniline, by J&K Scientific (1 mentions)
Trifluoroacetic acid tfa, by J&K Scientific (1 mentions)
Aniline, by Sinopharm (1 mentions)
24 protocols using zinc acetate dihydrate
1
Synthesis of Electrochemical Catalysts
2
ZnO Thin Film Deposition via CVD
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This deposition method consisted in the preparation of the ZnO precursor solution, in which 0.2 M of zinc acetate dihydrate (≥98%, Alfa Aesar) [Zn(CH3COO)2·2H2O] was diluted in 50 mL ethanol (99.7%, Fermont) [C2H5OH] and kept under magnetic stirring for 1 h at room temperature. During deposition the substrate temperature was kept at 260 °C ± 3 °C for 10 min. The pressure and carrier gas flow (N2) were maintained at 276 kPa and 0.09 L/min, respectively [36 (link)]. Finally, the samples were subjected to heat treatment (ARSA, AR-340) at 400 °C for 30 min. To obtain the control samples, the deposition processes were carried out on glass substrates of 1.5 cm × 1.5 cm. Table 1 shows the names of the prepared samples.
3
Fabrication of ZnO Nanoneedle Arrays
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The silicon substrates (3 cm × 3 cm) were immersed in ethanol and cleaned via an ultrasonic vibrator for 10 min to remove particles and organic contaminants from the surface of the substrates. Next, the ZnO seed film was fabricated via spin coating a layer of solution of 20 mM zinc acetate dihydrate (97%, Alfa Aesar) in ethanol and then thermal annealing the substrates at 80 °C for 3 min and 350 °C for 20 min. Finally, the silicon substrates with ZnO seed layer were cut into 1 cm × 3 cm for the growth of ZnO nanoneedle arrays. The fabrication process of the ZnO seed layer is illustrated in Figure 1 a.
4
Synthesis of Polypeptide Precursors
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Anhydrous DMC, DMF and THF purchased from J&K Scientific Ltd. (Beijing, China) were directly used without treatment. All aromatic amines except aniline were also purchased from J&K. aniline was purchased from Sinopharm Chemical (Beijing, China). All liquid amines were dried with KOH for overnight, followedby distillation in vacuum at least three times. p-Anisidine and p-toluidine were recrystallized at least three times. H-Glu(OBn)-OH was purchased from GL Biochem Ltd. (Shanghai, China) and used as received. Amantadine (Aman) ordered from Alfa Aesar (Beijing, China) was used without further treatment. 4-Alkyl aniline purchased from J&K was recrystallized twice from dichloromethane. BLG-NCA was synthesized according to the reported procedure [60 (link)], followed by recrystallization four times prior to use. Zinc chloride (ZnCl2), zinc trifluoromethanesulfonate (Zn(OTf)2), zinc acetate and zinc acetate dihydrate (Zn(OAc)2·2H2O) purchased from Alfa Aesar were used without treatment. Trifluoroacetic acid (TFA) and HBr (33wt% in acetic acid) were ordered from J&K.2-Bromo-2-methylpropionic acid 4-ester aniline was prepared as report [61 (link)]. 2-Methoxyethyl acrylate (MEA) from Aldrich (Beijing, China) was distilled under vacuum and kept below 5 °C prior to use.
5
Synthesis of Colloidal Quantum Dots
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Cadmium acetate dihydrate (Cd(CH3COO)2·2H2O, 98%), zinc acetate dihydrate (Zn(CH3COO)2·2H2O, 99.99%), selenium (shot, 2–6 mm, 99.998%) and sulfur (99.999%) were purchased from Alfa Aesar. Oleic acid (OA, 90%), 1-octadecene (ODE, 90%), toluene (anhydrous, 99.8%), chloroform (anhydrous, 99%), 2-propanol (anhydrous, 99.5%), ethanolamine (99.5%) and octane (anhydrous, 99%) were purchased from Sigma-Aldrich. Trioctylphosphine (TOP, 97%) was purchased from Strem. Ethanol (absolute, 200 Proof) was purchased from Fisher Chemical. TFB and HAT-CN were purchased from Lumtec. Silver pellets (Ag, 99.99%) were purchased from Kurt J. Lesker. The materials were used as received.
6
Perovskite Solar Cell Fabrication
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Indium tin oxide (ITO) glass substrates (15
Ω/square) were purchased from Aimcore Technology. Cesium carbonate
(Cs2CO3, 99.995%), octadec-1-ene (ODE, 90%),
and OAm (80–90%) were received from Acros. Lead bromide (PbBr2, 99.998%), zinc acetate dihydrate (Zn(CH3COO)2·2H2O, 98%), sodium tetrafluoroborate (NaBF4, 97%), and MoO3 (99.95%) were bought form Alfa
Aesar. OA (90%), ammonium hexafluorophosphate (NH4PF6, 99%), and PFN-Br were bought from Sigma-Aldrich. Sodium
beta-styrenesulfonate (SβSS) and TCTA (99.5%) were purchased
from TCI and Lumtec, respectively. Other chemicals and solvents were
received from Alfa Aesar, Acros, or TEDIA and used without further
purification. In addition, ZnO NC dispersions were prepared according
to the previous study.32 (link)
Ω/square) were purchased from Aimcore Technology. Cesium carbonate
(Cs2CO3, 99.995%), octadec-1-ene (ODE, 90%),
and OAm (80–90%) were received from Acros. Lead bromide (PbBr2, 99.998%), zinc acetate dihydrate (Zn(CH3COO)2·2H2O, 98%), sodium tetrafluoroborate (NaBF4, 97%), and MoO3 (99.95%) were bought form Alfa
Aesar. OA (90%), ammonium hexafluorophosphate (NH4PF6, 99%), and PFN-Br were bought from Sigma-Aldrich. Sodium
beta-styrenesulfonate (SβSS) and TCTA (99.5%) were purchased
from TCI and Lumtec, respectively. Other chemicals and solvents were
received from Alfa Aesar, Acros, or TEDIA and used without further
purification. In addition, ZnO NC dispersions were prepared according
to the previous study.32 (link)
7
Electrochemical Levodopa Sensing Platform
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All chemicals
used within this work were of analytical grade. ETF (99.88%) and levodopa
(99.44%) were provided from the National Organization for Drug Control
and Research (Cairo, Egypt). Commercial formulation (Vascon) was purchased
from a local pharmacy. Silicon oil (99%), zinc acetate dihydrate [Zn(CH3COO)2·2H2O, ≥98%], sodium
hydroxide (NaOH, ≥98%), chromium nitrate nonahydrate [Cr(NO3)3·9H2O, 99%], and graphite powder
(10–20 μm) were procured from Alfa Aesar or Merck, Germany.
100 mL of phosphate buffer solution (PBS) (0.1 mol L–1) was prepared of 1 mol L–1 dipotassium phosphate
(K2HPO4) and 1 mol L–1 dihydrogen
potassium phosphate (KH2PO4), with a particular
volume of 0.1 mol L–1 H3PO4 and 0.1 mol L–1 NaOH added for pH correction.
Ethanol, acetone, and dimethyl sulfoxide solvents were obtained from
El-Nasr company, Egypt. Human serum was acquired from the Zagazig
University Hospital (Zagazig, Egypt) and kept frozen until use.
used within this work were of analytical grade. ETF (99.88%) and levodopa
(99.44%) were provided from the National Organization for Drug Control
and Research (Cairo, Egypt). Commercial formulation (Vascon) was purchased
from a local pharmacy. Silicon oil (99%), zinc acetate dihydrate [Zn(CH3COO)2·2H2O, ≥98%], sodium
hydroxide (NaOH, ≥98%), chromium nitrate nonahydrate [Cr(NO3)3·9H2O, 99%], and graphite powder
(10–20 μm) were procured from Alfa Aesar or Merck, Germany.
100 mL of phosphate buffer solution (PBS) (0.1 mol L–1) was prepared of 1 mol L–1 dipotassium phosphate
(K2HPO4) and 1 mol L–1 dihydrogen
potassium phosphate (KH2PO4), with a particular
volume of 0.1 mol L–1 H3PO4 and 0.1 mol L–1 NaOH added for pH correction.
Ethanol, acetone, and dimethyl sulfoxide solvents were obtained from
El-Nasr company, Egypt. Human serum was acquired from the Zagazig
University Hospital (Zagazig, Egypt) and kept frozen until use.
8
Preparing ZnO Seed Films for Nanotower Growth
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Glass substrates (7.5 cm × 2.5 cm) were soaked in ethanol and cleaned with an ultrasonic vibrator for 10 min to remove particles and organic contaminants from the substrate surface. Next, a ZnO seed film was prepared by spin-coating a layer of 20 mM zinc acetate dihydrate (97%, Alfa Aesar, Haverhill, MA, USA) solution in ethanol, followed by thermal annealing this substrate at 80 °C for 3 min and 350 °C for 20 min, respectively. Finally, the glass substrate with a ZnO seed film was cut into 1 cm × 1 cm for growing ZnO: Ga nanotowers.
9
Synthesis and Characterization of ZnO Nanostructures
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An aluminum (Al) foil (7.62 m × 30.4 cm (2.1 USD) was commercially obtained from Diamond (North Billerica, MA, USA). All chemicals were purchased from commercial sources and used without further purification. Zinc nitrate dihydrate (98%, Alfa Aesar, Ward Hill, MA, USA), hexamethylenetetramine (HMTA, 99%, Alfa Aesar, USA), zinc acetate dihydrate (97%, Alfa Aesar, USA), ZnO nanopowder (Uniregion Bio-Tech, Taoyuan, Taiwan), methylene blue (MB, 95%, Alfa Aesar, USA), tetracycline capsules (TC, 250 mg, Veterans Pharmaceutical, Taoyuan, Taiwan), triethanolamine (TEOA, 98%, Alfa Aesar, USA), isopropyl alcohol (IPA, 99.5%, Alfa Aesar, USA), L-ascorbic acid (AA, 98%, Alfa Aesar, USA), silver nitrate (AgNO3, 99%, Alfa Aesar, USA) and ethanol (C2H5OH, 99%, Sigma-Aldrich, Darmstadt, Germany) were used in this experiments. De-ionized water with a resistivity higher than 18.2 MΩ was used for all solution preparations.
10
Organic Semiconductor Fabrication Protocol
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PEDOT:PSS (poly(3,4- ethylenedioxythiophene) polystyrene sulfonate, Al 4083, M121, Ossila), Poly-TPD (Poly(N,N’-bis-4- butylphenyl-N,N’-bisphenyl)benzidine, Ossila), PVK (Poly(9-vinyl) carbazole, average Mn 25,000–50,000, Aldrich), PMMA (polymethyl metacrylate, Arkema), chlorobenzene (anhydrous, 99.8%, Sigma-Aldrich), m-xylene (anhydrous, ≥99%, Sigma-Aldrich), epoxy-glue (Ossila), zinc acetate dihydrate (<97%, Alfa Aesar), tetramethylammonium hydroxide pentahydrate (TMAOH, 98%, Alfa Aesar), dimethyl sulfoxide (DMSO, ≥99.9%, Sigma-Aldrich), ethyl acetate (VMR), ethanol absolute anhydrous (VMR), octane (VWR, technical) and acetone (VWR). All the materials were used as received.
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