Sodium tellurite

Manufactured by Thermo Fisher Scientific

Sodium tellurite is a chemical compound used in microbiology and biochemistry laboratories. It is a white, crystalline solid that is soluble in water. Sodium tellurite is commonly used as a selective agent in culture media for the isolation and identification of certain bacteria.

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Sodium tellurite (Na2TeO3, (3 citations)

5 protocols using sodium tellurite

Synthesis and Characterization of Nanoparticles

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Thioglycolic acid (TGA, C₂H₄O₂S, ≥99%), cadmium acetate dihydrate (Cd(CH₃COO)₂·2H₂O, 99.5%), (3-aminopropyl)triethoxysilane (APTES, H₂N(CH₂)₃Si(OC₂H₅)₃, 99%), tetraethyl orthosilicate (TEOS, SiC₈H₂₀O₄, 98%), ammonia (NH₃, ≥99.9%), cetyltrimethylammonium bromide (CTAB, C₁₉H₄₂BrN, ≥98%), poly(ethylene glycol) BioUltra 3000, poly(ethylene glycol) BioUltra 6000, poly(ethylene glycol) BioUltra 8000, p-toluenesulfonyl chloride (CH₃C₆H₄SO₂Cl, ≥98%), hydrochloric acid (HCl, 37%), magnesium sulfate (MgSO₄, ≥99.5%), sodium ascorbate, bovine serum albumin (BSA), lysozyme (LYS), carbonic anhydrase (CA), ovalbumin (OVA), hemoglobin (Hb), myoglobin (Myb), and cytochrome c (CYT) were purchased from Sigma-Aldrich (Lisbon, Portugal). Sodium hydroxide (NaOH, ≥98%) was produced by Panreac. Sodium tellurite (Na₂TeO₃, 99.5%) and ammonium nitrate (NH₄NO₃, 99.9%) were purchased from Alfa Aesar. Sodium borohydride (NaBH₄, 99%), ethylene glycol (C₂H₆O₂, ≥99.5%) and (3-isocyanatopropyl)triethoxysilane (IPTES, (C₂H₅O)₃Si(CH₂)₃NCO, 95%) were produced by Fluka. Methanol (MeOH), ethanol (EtOH), tetrahydrofuran (THF, C₄H₈O, ≥99.9%), and chloroform (CHCl₃) were purchased by Carlo Erba Reagents. All the reagents and solvents were of analytical reagent grade and were used as received. All cell culture reagents were purchased from Gibco (Alfagene, Lisbon, Portugal) unless stated otherwise.

Marcelo G., Ariana-Machado J., Enea M., Carmo H., Rodríguez-González B., Luis Capelo J., Lodeiro C, & Oliveira E. (2018). Toxicological Evaluation of Luminescent Silica Nanoparticles as New Drug Nanocarriers in Different Cancer Cell Lines. Materials, 11(8), 1310.

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Nanoparticle Synthesis and Antibacterial Assay

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Cadmium chloride (CdCl₂), 3-mercaptoundecanoic acid (MPA), sodium citrate dihydrate sodium borohydride (Na₂BH₄), l-ethyl-3-(3-(dimethylamino)propyl) carbodiimide (EDC), Triton X-100, 2′,7′-dichlorofluorescein (H₂DCF), sodium phosphate monohydrate, AlamarBlue and melittin were obtained from Sigma-Aldrich. Sodium hydroxide (NaOH) was obtained from Acros Organic. Sodium tellurite was obtained from Alfa Aeser. Tris buffer was obtained from AppliChem. Aqua (sterile water) was obtained from BBraun. Mueller Hinton Broth (MHB) was obtained from BD Difco. EDTA-blood was either drawn fresh every day of assay from an approved volunteer or purchased from Innovative Research, Inc. (Michigan, U.S.). E. coli (Strain ATCC25922) cells were purchased from the Leibniz-Institute DSMZ. Poly(oxanorbornenes) (PONs) were synthesized and characterized as reported previously (see SI for details).^{21 (link),23 (link)} An Ultrathin LED Light Panel (Neutral White) was purchased from Environmental Lights, San Diego, CA.

Williams D.N., Saar J.S., Bleicher V., Rau S., Lienkamp K, & Rosenzweig Z. (2020). Poly(oxanorbornene)-Coated CdTe Quantum Dots as Antibacterial Agents. ACS applied bio materials, 3(2), 1097-1104.

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Synthesis of Bismuth Telluride Nanostructures

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Sodium tellurite (NaTeO₃, >99.99%), bismuth nitrate pentahydrate (Bi(NO₃)₃·5H₂O, >90%), sodium hydroxide (NaOH, >90%), poly(vinyl pyrrolidone) (PVP, MW ≈ 40 000) and ethylene glycol (EG) were all purchased from Alfa Aesar. Ethylenediamine (C₂H₈N₂) (99%) was obtained from Acros. Graphite powder (325 mesh), potassium permanganate (KMnO₄, >90%), concentrated sulfuric acid (H₂SO₄, 98%), hydrogen peroxide (H₂O₂, 30%), hydrochloric acid (HCl, 37%), anhydrous acetone and isopropanol were supplied by Sinopharm. All the chemicals were used as received without further purification.

Ding D., Sun F., Xia F, & Tang Z. (2020). A high-performance and flexible thermoelectric generator based on the solution-processed composites of reduced graphene oxide nanosheets and bismuth telluride nanoplates. Nanoscale Advances, 2(8), 3244-3251.

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Synthesis of Tellurium Nanomaterials

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Bismuth nitrate pentahydrate (Bi(NO 3 ) 3 H 2 O, >99.9%), sodium tellurite (Na 2 TeO 3 , >99.5%), sodium hydroxide (NaOH, >99%), poly(vinyl) pyrrolidone (PVP, MW 40 000) and ethylene glycol were purchased from Fisher Scientific. All chemicals were used as received.

Manzi J., Weltner A.E., Varghese T., McKibben N., Busuladzic-Begic M., Estrada D, & Subbaraman H. (2023). Plasma-jet printing of colloidal thermoelectric Bi₂Te₃ nanoflakes for flexible energy harvesting. Nanoscale, 15(14).

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Synthesis of Bismuth Chalcogenide Nanostructures

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Chemicals and solvents: Bismuth (III) nitrate pentahydrate (Bi(NO3)3•5H2O, ≥ 99.99%), sodium selenite (Na2SeO3, ≥ 98%), potassium hydroxide (KOH, ≥ 98%), and polyvinylpyrrolidone (PVP, (C6H9NO)n, average mol wt ~55,000) were purchased from Sigma Aldrich. Sodium tellurite (Na2TeO3, 99.5%) and ethylene glycol (EG, HOCH2CH2OH, 99%) were purchased from Fisher.
Analytical grade acetone and ethanol were obtained from various sources. All chemicals were used as received without further purification. Syntheses were carried out using a standard vacuum/dry argon Schlenk line.

Liu Y., Zhang Y., Lim K.H., Ibáñez M., Ortega S., Li M., David J., Martí-Sánchez S., Ng K.M., Arbiol J., Kovalenko M.V., Cadavid D, & Cabot A. (2018). High Thermoelectric Performance in Crystallographically Textured n-Type Bi₂Te_{3- x}Se _x Produced from Asymmetric Colloidal Nanocrystals. ACS nano, 12(7).

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