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5 protocols using ethyl cellulose

1

Fabrication and Characterization of Dye D1

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The materials
used in the synthetic procedure and device fabrication were of analytical
grade and used without further purification. Zinc chloride (Merck),
ethyl cellulose (Himedia), 4-tert-butylpyridine (Himedia),
chloroplatinic acid hexahydrate (Sigma-Aldrich), ammonium hydroxide
(Merck), iodine (Merck), lithium iodide (Sigma-Aldrich), acetonitrile
(HPLC grade, Merck), dichloromethane (DCM, Merck), valeronitrile (Sigma-Aldrich),
terpineol (Himedia), hydrogen chloride (Merck), 1-butyl 3-methyl imidazolium
iodide (Sigma-Aldrich), and ethanol (TEDIA, USA) are used. Fluorine-doped tin oxide
(FTO, sheet resistance 12–14 Ω cm–2)-coated glass substrates were procured from Sigma-Aldrich. The water
used for the experiments is Milli-Q water (18.2 MΩ cm–2). All of the chemicals reagents used during the synthesis of dye D1 are mentioned in the synthetic protocol.
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2

Formulation and Evaluation of Repaglinide

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Repaglinide was procured as gift sample from Torrent Pharmaceuticals, Ahmadabad, India. Ethylcellulose, and hydroxypropyl mEthylcellulose (5 and 100 cps) were purchased from Himedia Chemicals, India. Analytical grade ethanol, dichloromethane, and polyvinyl alcohol (PVA) were purchased from SD fine chemicals Mumbai, India. All other chemicals used were of analytical grade.
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3

Analytical Reagents Procurement and Use

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The following chemicals were purchased from different chemical suppliers and used as received. EA, phthalate esters, acetonitrile, and water were purchased from Sigma-Aldrich (Sigma-Aldrich Chemical Co., St. Louis, MO, USA). Chloroform, dimethyl sulfoxide, ethyl cellulose, and polyvinylpyrrolidone K-30 were purchased from HiMedia (HiMedia Laboratories Pvt. Ltd, Maharashtra, India). A 3M double-coated polyethylene tape 9766 was received from 3M (3M, St. Paul, USA) as a gift sample. All reagents and solvents used were of analytical grade.
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4

Pregabalin Formulation Development

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Pregabalin was received as a gift from M Sea Pharmaceuticals Pvt Ltd (Poanta Sahib; India). Ethylcellulose, cross link PVP and light liquid paraffin were procured from Himedia lab Ltd. (Mumbai; India). Dichloromethane (DCM), acetonitrile (ACN) and span 80 were purchased from Fisher Scientific (Mumbai; India). All other chemicals used were of analytical grade.
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5

Lafutidine Floating Tablet Development

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Lafutidine was gifted by Zuventus Healthcare Ltd., Mumbai, India. Ethyl cellulose and sodium bicarbonate was procured from Himedia Laboratories, Mumbai, India. Polyvinyl alcohol, dichloromethane, talc and magnesium stearate were procured from Loba chemie, Mumbai. HPMC K15M, HPMC K100M and microcrystalline cellulose were procured from Yarrow Chem Products, Mumbai.
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