Pyrrole monomer C4H5N (Py, +98%), ammonium persulfate (NH4)2S2O8 (APS, 98%), and potassium hydroxide KOH (pellets, 85%) were purchased from Alfa Aesar, Karlsruhe, Germany. Hydrochloric acid HCl (~36%) and ethanol (99.5%) were obtained from Fisher Chemical, Loughborough, UK. Methyl orange sodium salt C14H14N3NaO3S (MO, 99.8%) powder was obtained from BDH Chemicals Ltd., Poole, UK and was dried at 100 °C for 1.5 h. All the reagents were used as received without any further treatment unless otherwise stated, and distilled water was used throughout the experimental process.
Potassium hydroxide koh
Manufactured by Thermo Fisher Scientific
Sourced in United States, United Kingdom
Potassium hydroxide (KOH) is a strong alkaline chemical compound. It is a white, crystalline solid that is highly soluble in water. Potassium hydroxide is commonly used in various laboratory applications due to its ability to neutralize acids and regulate pH levels.
Automatically generated - may contain errors
Lab products found in correlation
Formic acid, by Merck Group (2 mentions)
Ammonium persulfate nh4 2s2o8, by Thermo Fisher Scientific (1 mentions)
Pyrrole monomer c4h5n, by Thermo Fisher Scientific (1 mentions)
Methyl orange sodium salt c14h14n3nao3s, by Avantor (1 mentions)
Hydrochloric acid (hcl), by Thermo Fisher Scientific (1 mentions)
Ethanol, by Thermo Fisher Scientific (1 mentions)
Polyvinyl alcohol (pva), by Merck Group (1 mentions)
Gelatin, by Merck Group (1 mentions)
Sodium sulphate na2so4, by Merck Group (1 mentions)
500 mhz nmr spectrometer, by Bruker (1 mentions)
Benzylamine, by Merck Group (1 mentions)
Ethanol, by Merck Group (1 mentions)
Nafion, by Merck Group (1 mentions)
Melamine c3h6n6, by Merck Group (1 mentions)
α tocopheryl acetate, by Merck Group (1 mentions)
Butylated hydroxy toluene, by Thermo Fisher Scientific (1 mentions)
Ascorbic acid, by Thermo Fisher Scientific (1 mentions)
Uv 2600, by Shimadzu (1 mentions)
Zn ch3coo 2 2h2o, by Thermo Fisher Scientific (1 mentions)
Ammonia nh3, by Thermo Fisher Scientific (1 mentions)
16 protocols using potassium hydroxide koh
1
Pyrrole Polymerization and Characterization
2
Polyvinyl Alcohol Gelatin Hydrogel
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PVA (89–98 kDa and 146–186 kDa), gelatin (Type B from bovine skin) and sodium sulphate (Na2SO4) were acquired from Merck Life Science (Dorset, United Kingdom). Potassium hydroxide (KOH, 85%) was acquired from Alfa Aesar (Lancashire, United Kingdom). Deionised water from a Purite Millipore tank (<18 MΩ, Milli-Q) was used for all experiments unless otherwise stated.
3
Synthesis and Characterization of Pyridylacetonitrile Derivatives
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2,4,5-Trimethoxybenzaldehyde (2,4,5-(TMB)), 2-pyridylacetonitrile (2-PyAcN), 3-pyridylacetonitrile (3-PyAcN), 4-pyridine in acetonitrile hydrochloride, (HCl4-PyAcN) and 1,4-phenylenediacetonitrile ( 1,4-PhDAcN) were acquired from Aldrich Chemical Co. (Milwaukee, WI, USA). Phenylacetonitrile (PhAcN) and potassium hydroxide (KOH) were acquired from Alfa Aesar (Tewksbury, MA, USA) and J.T. Baker (Phillipsburg, NJ, USA), respectively. All chemical reagents were used without purification. Melting points were measured with an SEV (0–300 °C) apparatus (SEV, Puebla, México) and were reported as uncorrected values. IR spectra of the products were recorded on a Vertex 750 FT-IR spectrophotometer (model 70, Bruker Optics, Ettlingen, Germany) by attenuated total reflectance (ATR). 1H-NMR and 13C NMR spectra were obtained in DMSO-d6 on a 500 MHz NMR spectrometer (Bruker, Guadalajara, México). The electron ionization (EI) spectra were acquired on a Jeol MStation 700-D mass spectrometer (Jeol USA, Peabody, MA, USA).
4
Colorimetric Sensing of Aldehydes
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4‐amino‐3‐hydrazino‐5‐mercapto‐1,2,4‐triazole or commercially called purpald (C2H6N6S, ≥99%, Sigma Aldrich), melamine (C3H6N6, 99%, Sigma Aldrich), ethanol (≥99%, Sigma Aldrich), potassium hydroxide (KOH, Alfa Aesar), Nafion (15–20% water, 1100 W, Sigma Aldrich), acetonitrile (CH3CN, Supelco, hypergrade for LC‐MS), benzylamine (99%, Sigma Aldrich) were used without further purification.
5
Synthesis and Characterization of NGT
6
Synthesis of Cobalt-Zinc Hydroxide Nanostructures
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Cobalt nitrate hexahydrate (Co(NO3)2·6H2O, Acros Organics), zinc acetate
dihydrate (Zn(CH3COO)2·2H2O,
Alfa Aesar), hexamethylenetetramine (HMTA, Alfa Aesar), ammonia (NH3, 35% Fisher Chemical), urea ((NH2)2CO, Acros Organics), and potassium hydroxide (KOH, Fisher Chemical)
were all of analytical grade and used without further purification.
Prior to deposition, a Ni foam substrate (Fucell CO., LTD, a thickness
of 1.7 mm, 110 ppi) was cut into 2 × 1 cm2 pieces
and ultrasonically cleaned in isopropanol (CH3CH(OH)CH3, Acros Organics) and then in water for 10 min each. Throughout
the experiments, ultrapure water with a resistivity of 18.2 MΩcm
(Yamato, Japan) was used.
dihydrate (Zn(CH3COO)2·2H2O,
Alfa Aesar), hexamethylenetetramine (HMTA, Alfa Aesar), ammonia (NH3, 35% Fisher Chemical), urea ((NH2)2CO, Acros Organics), and potassium hydroxide (KOH, Fisher Chemical)
were all of analytical grade and used without further purification.
Prior to deposition, a Ni foam substrate (Fucell CO., LTD, a thickness
of 1.7 mm, 110 ppi) was cut into 2 × 1 cm2 pieces
and ultrasonically cleaned in isopropanol (CH3CH(OH)CH3, Acros Organics) and then in water for 10 min each. Throughout
the experiments, ultrapure water with a resistivity of 18.2 MΩcm
(Yamato, Japan) was used.
7
Antioxidant Potential Determination
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Potassium hydroxide (KOH) was supplied from Fisher Chemicals (Fisher Scientific, Loughborough, Leicestershire, UK), while yeast extract and bactopeptone were ordered from Biolife (Milano, Italy) and sodium hydrogen phosphate heptahydrate (Na2HPO4·7 H2O) was product of Acros Organics (Verona, Spain). Acetonitrile was purchased from Merck (Darmstadt, Germany), formic acid from Sigma Aldrich (Munich, Germany), cyanidin-3-O-rutinoside from Extrasynthese (Genay, France), ethanol and sodium carbonate anhydrous (Na2CO3) from Centrohem (Stara Pazova, Serbia), and hydrochloric acid (HCl; 36.2%) from Zorka Pharma (Sabac, Serbia). Folin–Ciocalteu reagent was purchased from Carlo Erba Reagents (Emmendingen, Germany), sodium carbonate anhydrous (Na2CO3) from Centrohem (Stara Pazova, Serbia), and gallic acid, 2,2-dyphenyl-1-picrylhydrazyl (DPPH), ascorbic acid, sodium acetate, 2,4,6-tris(2-pyridyl)-(S)-triazine (TPTZ), sodium acetate trihydrate, iron(III) chloride hexahydrate (FeCl3∙6H2O), iron(II) sulfate heptahydrate (FeSO4∙7H2O), and citric acid were purchased from Sigma Aldrich (Munich, Germany).
8
Fmoc-Based Solid-Phase Peptide Synthesis Protocols
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The chemicals used for 9-fluorenylmethoxycarbonyl
(Fmoc)-based solid-phase peptide synthesis (SSPS) (N-methylpyrrolidinone (NMP), O-(benzotriazole-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HBTU),
benzotriazol-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate
(PyBOP), trifluoroacetic acid (TFA), triisopropylsilane (TIPS), N,N-diisopropylethylamine (DIPEA), Wang
resin, and Fmoc-protected amino acids) were obtained from Oakwood
Products, Inc. or Advanced ChemTech. Formic acid and 10,12-PCDA were
obtained from Sigma-Aldrich. N,N-Dimethylformamide (DMF), ammonium hydroxide, potassium hydroxide
(KOH), and acetonitrile, methanol, dichloromethane (DCM) were obtained
from Fisher Scientific. DIPEA was degassed by sparging with nitrogen
(N2) gas over 4 Å molecular sieves for 1 h prior to
use. For peptide-DA coassembly polymerization, upon mixing the two
components, the solution was instantaneously UV-irradiated (6-Watt,
254 nm source) for 5 min in a similar way as the neat samples. Characterization
of monomer and polymer samples can be found in theSupporting Information (Figures S1–12 and Table S1).
(Fmoc)-based solid-phase peptide synthesis (SSPS) (N-methylpyrrolidinone (NMP), O-(benzotriazole-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HBTU),
benzotriazol-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate
(PyBOP), trifluoroacetic acid (TFA), triisopropylsilane (TIPS), N,N-diisopropylethylamine (DIPEA), Wang
resin, and Fmoc-protected amino acids) were obtained from Oakwood
Products, Inc. or Advanced ChemTech. Formic acid and 10,12-PCDA were
obtained from Sigma-Aldrich. N,N-Dimethylformamide (DMF), ammonium hydroxide, potassium hydroxide
(KOH), and acetonitrile, methanol, dichloromethane (DCM) were obtained
from Fisher Scientific. DIPEA was degassed by sparging with nitrogen
(N2) gas over 4 Å molecular sieves for 1 h prior to
use. For peptide-DA coassembly polymerization, upon mixing the two
components, the solution was instantaneously UV-irradiated (6-Watt,
254 nm source) for 5 min in a similar way as the neat samples. Characterization
of monomer and polymer samples can be found in the
9
Itraconazole Lipid Nanoparticle Formulation
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Itraconazole powder was purchased from Orkila, Spansules (Hyderabad, India). Ascorbyl palmitate was purchased from DSM (Nutritional Product GmbH, Kaiseraugst, Switzerland). Epikuron® TM 200 was kindly obtained by Cargill (Minneapolis, MN). Cholesterol (CH), HPLC grade solvents (chloroform and ethanol), sodium chloride, potassium dihydrogen phosphate, disodium hydrogen phosphate, potassium hydroxide (KOH), and methyl paraben were purchased from Fisher Scientific (Waltham, MA), Acros Organics (Geel, Belgium). Glycerin was obtained from El-Nasr Pharmaceutical Company (Khanka, Egypt). Propylene glycol PP was kindly gifted from LUNA Cosmetics (Edmonton, Canada).
10
Enzyme Activity Assay Protocol
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The following chemicals were used in this study: 4-methyl umbelliferone sodium salt (4-MU), MP Biomedicals (Solon, OH, United States); 4-methyl umbelliferyl-beta-D-glucuronide (4-MU-G), Acros Organics (Geel, Belgium); 3'-phosphoadenosine 5'-phosphosulfate (PAPS), Calbiochem (San Diego, CA, United States); NAD+ and NADPH, Calbiochem (San Diego, CA, United States); potassium hydroxide (KOH), Fisher Chemicals (Fair Lawn, NJ, United States); and pregnenolone, TCI America (Portland, OR, United States). All other chemicals were purchased from Sigma Aldrich Company (St Louis, MO, United States) and were analytical grade or higher.
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