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229 protocols using zinc acetate dihydrate

1

Hydrothermally Grown ZnO Nanowire Electrodes

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The ink solutions consist of isopropanol (IPA) (Fisher scientific), zinc acetate dihydrate (Sigma Aldrich) and deionized water. zinc acetate dihydrate and hexamethylenetetramine (HMTA) were required for the hydrothermal growth of the ZnO nanowires, these were purchased from Sigma Aldrich. The Carbon electrodes were printed with carbon flexographic ink 32% solids (Gwent electronic materials Ltd, C2080529P7) onto Cirlex Polyimide sheet of 0.15 mm thickness purchased from Lohmann Technologies UK Ltd. All chemicals used were of analytical grade and used without further purification.
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2

Synthesis of Metal-Oxide Thin Films

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Diethanolamine (DEA, ≥98.0%),
ethanol (CH3CH2OH, 96%), zinc acetate dihydrate
[Zn(CH3COO)2·2H2O, 99.999%],
copper acetate monohydrate [Cu(CH3COO)2·H2O, ≥99%], vanadium pentoxide (V2O5, 99.95%), and indium tin oxide (ITO)-coated glass substrates (surface
resistivity of around 8–12 Ω/sq) were purchased from
Sigma-Aldrich. All chemicals were used without further purification.
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3

Fabrication of Perovskite Solar Cells

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MAI and MACl were prepared according to a previously reported method.4,10 (link) All reagents, including 4-tert-butylpyridine (t-BPy) and lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) were purchased from Sigma-Aldrich, TCI, and Alfa Aesar. The solvents were also purified using appropriate methods. The required quantity of 2,2′,7,7′-tetrakis(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD) was obtained from Solaronix. The ZnO sol–gel was synthesized by reacting zinc acetate dihydrate (1.6 g, Sigma Aldrich, 99.9%), ethanolamine (0.5 g, Sigma Aldrich, 99.5%) and 2-methoxy-ethanol (10 ml, Sigma Aldrich, 99.8%) for 4 h at room temperature.20 (link)
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4

Synthesis of ZnO Quantum Dots

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For synthesis of ZnO QDs, zinc acetate dihydrate and lithium hydroxide monohydrate were procured from Sigma Aldrich (MO, USA), absolute ethanol from (Alfa Aesar, MA, USA) and hexane from Merck (NJ, USA). Media chemicals for culture of the microbial cells namely, Luria Broth from BD Difco (TX, USA), yeast extract, peptone and glucose were obtained from Fisher Scientific (Hampton, NH, USA) and agar from Hi-Media (Mumbai, India).
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5

Fabrication of Organic Solar Cells

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Glass substrates precoated
with indium tin oxide (ITO) with a sheet resistance of 8–12
Ω/square and exhibiting an optical transmittance of 83% at the
wavelength of 550 nm were purchased from Ossila. 1,2-Dichlorobenzene
(o-DCB), PC71BM, and MoO3 were
purchased from Sigma-Aldrich. We reported the synthesis of PIDTT-BTz earlier.17 (link) The chemicals used to synthesize
zinc oxide (ZnO) for the electron transport layer (ETL) and Ag-NRs
such as 2-methoxyethanol, ethanolamine, zinc acetate dihydrate (Zn(CH3COO)2·2H2O), trisodium citrate
dihydrate (C6H5Na3O7·2H2O), sodium borohydride (NaBH4), silver nitrate
(AgNO3), sodium hydroxide (NaOH), and poly(vinyl alcohol)
(PVA) were also purchased from Sigma-Aldrich and used as received.
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6

Synthesis of Colloidal Nanocrystals

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All chemicals were acquired and used without further purification. 1-dodecanethiol (Alfa Aesar, 98%), trioctylphosphine (Sigma-Aldrich, 97%), 1-octadecene (Acros Organics, 90%), Oleic acid (for Figure 1 experiment: Sigma Aldrich >99%; otherwise: Alfa Aesar, 90%), Indium (III) Acetate (Alfa Aesar, 99.99% metals basis), Copper (I) Iodide (Aldrich, 98%), Zinc Acetate Dihydrate (Sigma-Aldrich, >99%), Diethyl Zinc (Beantown Chemicals, 96%). Caution: Diethyl zinc is extremely pyrophoric and must be handled under an inert atmosphere.
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7

Synthesis of Novel Heterocyclic Compounds

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The following chemicals were used as-received: butyronitrile (>99%, TCI chemicals), 3-amino-1propanol (>99%, TCI chemicals), zinc acetate dihydrate (≥98%, Sigma Aldrich), succinic anhydride (>98%, Sigma Aldrich), thionyl chloride (SOCl2) (>98%, Sigma-Aldrich), 2-chloroethylamine hydrochloride (98%, Sigma Aldrich), sodium methoxide (>99.8%, UNIVAR ® ), sodium carbonate (99.5%, UNIVAR ® ), aminoethanol (98%, TCI chemicals), 3-(aminomethyl)phenol (97%, Sigma Aldrich), 1,5,7triazabicyclo[4.4.0]dec-5-ene (TBD) (98%, Sigma-Aldrich), 4-(dimethylamino)pyridine (DMAP) (≥99%, Sigma-Aldrich), N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide (EDC) (98%, Sigma-Aldrich), 1hydroxybenzotriazole hydrate (HOBt) (>97%, Sigma Aldrich), 2-amino-2-(hydroxymethyl)propane-1,3diol (TRIS) (98%, Sigma-Aldrich), and cefazolin sodium salt (>98%, TCI chemicals).
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8

ZIF-8 Biomineralization via Probiotic Encapsulation

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For ZIF-8 biomineralization, 17 L. acidophilus or B. infantis were suspended in 5 mL 10 mM phosphate buffer containing 160 mM 2-methylimidazole (Sigma-Aldrich, USA) to concentration of 3 × 10 8 mL -1 and 3 × 10 9 mL -1 , respectively. A higher concentration of B. infantis was used to yield optimal viability after encapsulation. Next, 5 mL 40 mM zinc acetate dihydrate (Sigma-Aldrich, USA) was added, the mixture was shaken at 37 °C at 150 rpm for 10 min after which the encapsulated bacteria were collected by centrifugation. The bacterial pellet was re-suspended by vortexing in 10 mM phosphate buffer.
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9

Synthesis and Characterization of Quantum Dots

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Poly-TPD (average molecular weight, ~60,000 g mol−1) was purchased from Xi’an polymer light technology Corp. PVK (average molecular weight, 25,000–50,000 g mol−1), sulfur (99.98%), zinc acetate dihydrate (98%), 2-ethylhexanethiol (97%) and oleylamine (70%) were purchased from Sigma Aldrich. Octylamine (98%), tri-octylphosphine (TOP, 97%), cadmium acetate (98%), magnesium acetate hydrate (98%), benzoyl peroxide (BPO, 97%, dry wt.), 1-octadecene (ODE, 90%) and oleic acid (90%) were purchased from Alfa-Aesar. Chlorobenzene (extra dry, 99.8%), m-xylene (extra dry, 99%), octane (extra dry, >99%), ethanol (extra dry, 99.5%), tetrahydrofuran (THF, 99.9%, anhydrous) and decanoic acid (99%) were purchased from Acros. Dimethyl sulphoxide (DMSO, HPLC grade) and ethyl acetate (HPLC grade) were purchased from J&K Chemical Ltd. 1-Ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)imide (EMI-TFSI, 98%) and Ferrocene (98%) were purchased from Energy Chemical. Red CdSe/CdZnSe/CdZnS core/shell/shell QDs and blue CdSeS/ZnSeS/ZnS core/shell/shell QDs were purchased from Najing technology Co., Ltd.
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10

Zinc Acetate Synthesis and Characterization

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Zinc acetate dihydrate (Zn (CH3COO)2·2H2O), methylene blue, and sodium hydroxide (NaOH) were analytical-grade compounds that were purchased from Sigma-Aldrich for use in this research.
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