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Formaldehyde solution

Manufactured by Honeywell
Sourced in Switzerland

Formaldehyde solution is a clear, colorless liquid used as a chemical reagent in laboratory settings. It is a 37% aqueous solution of formaldehyde gas. The primary function of formaldehyde solution is as a fixative and preservative for biological samples, such as tissues and cells, to maintain their structural integrity for analysis and study.

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2 protocols using formaldehyde solution

1

Preparation of Drug Solutions

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The following drugs were used: Morphine sulfate (10 mg/ml) (Laboratoire Renaudin, Saint-Cloud, France), propranolol (Fluke, Chemie GmbH, Basel, Switzerland), formaldehyde solution (Riedel-de Haën, Seelze, Germany), bicuculline (Sigma Chemical Co., St Louis, MO, United States), and haloperidol (Jamjoom pharma factory, Jeddah, Kingdom of Saudi Arabia). Drugs were dissolved in 0.9% NaCl. Two drops of concentrated acetic acid 97% was added to bicuculline solution for stability purpose (Hemnani et al., 1983 (link)).
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2

Diosgenin Nanoparticle Formulation Protocol

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Lecithin and reagent-grade stearic acid (95%) were from Sigma-Aldrich; polysorbate-80 was from Sigma-Aldrich; isopropanol, phosphate-buffered saline (PBS), HPLC-grade acetonitrile, and diosgenin (93% purity) were from Sigma; formaldehyde solution (37%) was from Riedel-de Haen; extra pure chloroform was from Riedel-de Haen; paraformaldehyde was from Daejung; DMEM (1 ×) + GlutaMAX (1 g/L D-glucose, 110 mg/L sodium pyruvate) was from Gibco; 10% fetal bovine serum was from Gibco; Penstrep was from Gibco; and 0.4% trypan blue was from Gibco.
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