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4 protocols using γ cyclodextrin γ cd

1

Synthesis of Allylbenzene Triphenylphosphine Derivatives

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γ-cyclodextrin (γ-CD) and methyl β-cyclodextrin (M-β-CD) were purchased from Sigma Aldrich (St. Louis, MI, USA). Apiol, dillapiol, allyltetramethoxybenzene and myristicin were isolated from plant extracts as described earlier [77 (link)]. Heparin (MM 50–80 kDa), organic solvents, salts and acids were from Reakhim (Moscow, Russia).
The synthesis of triphenylphosphine derivatives of allylbenzenes was performed as described earlier in the work [46 (link)].
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2

Radiolabeled Compound Preparation for Biodistribution

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Citric acid, γ-cyclodextrin (γ-CD), cyclohexanedione dioxime (CDOH), diethylenetriaminepentaacetic acid (DTPA), 1,2-diaminopropane-N,N,N’,N’-tetraacetic acid (PDTA), methylboronic acid, sodium chloride, sodium fluoride, sodium azide, sodium thiocyanate, and stannous chloride dihydrate (SnCl2·2H2O) were purchased from Sigma/Aldrich (St. Louis, MO), and were used without further purification. 99mTcN-MPO([99mTcN(mpo)(PNP5)]+: PNP5 = N-ethoxyethyl-N,N-bis[2-(bis(3-methoxypropyl)phosphino)ethyl]amine)) was prepared according to literature methods [40 (link)-44 (link)], and its radiochemical purity (RCP) was >95% before being used for biodistribution study. Na99mTcO4 were obtained from Cardinal HealthCare® (Chicago, IL). Cardiolite® vials were obtained as a gift from Lantheus Medical Imaging (formerly Bristol Myers Squibb Medical Imaging, N. Billerica, MA). 99mTc-Sestamibi was prepared according to the manufacturer’s package insert.
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3

Fabrication and Characterization of Cyclodextrin Nanofilms

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α-cyclodextrin (α-CD) (≥98%, Sigma-Aldrich), β-cyclodextrin (β-CD) (≥97%, Sigma-Aldrich), γ-cyclodextrin (γ-CD) (≥98%, Sigma-Aldrich), 4-sulfocalix[4]arene sodium salt (SC[4]A) (≥98%, Tokyo Chemical Industry Ltd), ethylenediamine (EDA) (ReagentPlus, ≥99%, Sigma-Aldrich), 1,1′-carbonyldiimidazole (CDI) (≥97%, Sigma-Aldrich), TPC (≥98%, Sigma-Aldrich) and TMC (≥98%, Sigma-Aldrich) were used as received without further purification. Pure chlorophyll a and cannabidiol (CBD) solution (10 mg ml−1 in ethanol) were purchased from Sigma-Aldrich. (+)-Limonene (>99%) was purchased from Tokyo Chemical Industry Ltd. Single crystal silicon wafers (phosphorous doped, (100) polished) from Si-Mat Germany were used as a substrate to deposit the free-standing nanofilms for AFM measurement. PLATYPUS silicon wafers with 100-nm-thick gold coating from Agar Scientific were used to deposit the free-standing nanofilms for X-ray photoemission spectroscopy (XPS) measurements. PAN (230,000 g mol−1) powder was obtained from Goodfellow. All solvents used for phase inversion, interfacial polymerization and nanofiltration experiments were purchased from VWR. Commercial membranes DuraMem500 and DuraMem200 manufactured by Evonik were purchased from Sterlitech.
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4

Evaluation of Antioxidant and α-Glucosidase Inhibitory Activities

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Standards of the determined substances: acarbose, chlorogenic acid, epicatechin, quercetin, kaempferol, and rutin, were obtained from Sigma-Aldrich (St. Louis, MO, USA).
The reagents used in the conducted studies are as follows: α-D-glucopyranoside (pNPG), α-glucosidase, acarbose, 2,2-Diphenyl-1-picrylhydrazyl, TPTZ (2,4,6-tripyridyl-S-triazine) and Iron (III) chloride hexahydrate (FeCl3x6H2O), Folin–Ciocalteu’s phenol reagent, sodium carbonate, 2,4,6-tris(2-pyridyl)-1,3,5-triazine (TPTZ, C18H12N6), iron(III) chloride hexahydrate (FeCl3·6H2O), Trolox, α-cyclodextrin (α-CD), β-cyclodextrin (β-CD), and γ-cyclodextrin (γ-CD) were supplied by Sigma-Aldrich, St. Louis, MO, USA. Methanol, isopropanol, and acetone (Super Purity Solvent, Methanol 215 SPS) were supplied by ROMIL Ltd., Cambridge, England.
High-quality pure and ultra-high-quality pure water were prepared using a Direct-Q 3 UV Merck Millipore (Burlington, MA, USA) purification system.
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