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Sodium borohydride

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Sodium borohydride is a reducing agent commonly used in organic synthesis and analytical chemistry. It is a white, crystalline solid that reacts with water to produce hydrogen gas. Sodium borohydride is frequently employed in the reduction of carbonyl compounds, such as aldehydes and ketones, to alcohols. Its primary function is to facilitate chemical transformations in a laboratory setting.

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Lab products found in correlation

Silver nitrate, by Merck Group (264 mentions) Sodium hydroxide (naoh), by Merck Group (142 mentions) L ascorbic acid, by Merck Group (120 mentions) Hydrochloric acid (hcl), by Merck Group (110 mentions) Ascorbic acid, by Merck Group (82 mentions) Cetyltrimethylammonium bromide, by Merck Group (72 mentions) Ethanol, by Merck Group (67 mentions) Gold 3 chloride trihydrate, by Merck Group (66 mentions) Methanol, by Merck Group (61 mentions) Hydrogen peroxide, by Merck Group (51 mentions) Sodium chloride (nacl), by Merck Group (47 mentions) Polyvinylpyrrolidone, by Merck Group (42 mentions) Sodium citrate, by Merck Group (42 mentions) Sulfuric acid, by Merck Group (38 mentions) Bovine serum albumin (bsa), by Merck Group (35 mentions) Trisodium citrate, by Merck Group (34 mentions) Hexadecyltrimethylammonium bromide, by Merck Group (33 mentions) Acetone, by Merck Group (30 mentions) Chloroform, by Merck Group (30 mentions) Tetrachloroauric acid, by Merck Group (29 mentions)

Spelling variants of this product

Sodium borohydride (NaBH4) (173 citations) Sodium borohydride powder (8 citations) Sodium borohydride solution (3 citations) Sodium borohydride (NaBH4), silver nitrate (AgNO3), 2,2’-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (2 citations)

1 021 protocols using sodium borohydride

1

Synthesis and Characterization of Silver Nanoparticles

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Silver nitrate (AgNO3), trisodium citrate dihydrate (TC), sodium borohydride (SB), cysteamine hydrochloride (CH) and ammonia solution (25%) were purchased from Sigma Aldrich. These reagents were used without further purification as they were of analytical grade. Ultrapure water used for preparation of the AgNP suspensions was produced by a Milli-Q Elix & Simplicity 185 purification system (Millipore SA Molsheim).
Two types of AgNPs were used in the study: AgNPs obtained with the use of sodium borohydride (SB) in the presence of trisodium citrate (TC) (marked as TCSB-AgNPs) and AgNPs synthesized applying sodium borohydride (SB) and cysteamine hydrochloride (CH) (marked as CHSB-AgNPs). The preparation procedures of both suspensions and detailed physicochemical characteristics of AgNPs were described in the previous work45 .
Matras E., Gorczyca A., Przemieniecki S.W, & Oćwieja M. (2022). Surface properties-dependent antifungal activity of silver nanoparticles. Scientific Reports, 12, 18046.
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2

Synthesis and Functionalization of Nanomaterials

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Cetyltrimethylammonium bromide (CTAB) (≥99% for molecular biology), Gold(III) chloride trihydrate (HAuCl4), sodium borohydride, sodium borohydride (NaBH4), silver nitrate (AgNO3), L-Ascorbic Acid (L-AA), tetraethyl orthosilicate (TEOS), (3-aminopropyl) triethoxysilane (APTES),(3- gycidyloxypropyltrimethoxysilane (GPTMS), dimethylformide (DMF), N-succinimidyl 4-(maleimidomethyl) cyclohexanecarboxylate (SMCC), indocyanine green (ICG), IR-780 percholate dye, dye content > 99% (IR-780), methanol (99.8%), and ethanol (99.5%) were purchased from Sigma-Aldrich (St. Louis, MO, USA) and used as received. Bovine serum albumin lyophilized powder, ≥96% (BSA) was purchased from Sigma-Aldrich (St. Louis, MO, USA) and dissolved in autoclaved PBS. Dulbecco’s Modified Eagle’s Medium (DMEM), L-glutamine, and RPMI medium were purchased from Life Technologies (New York, NY, USA). Fetal bovine serum (FBS) was purchased from Atlanta Biologicals (Lawrenceville, GA, USA). V7 pHLIP peptide sequence ACEEQNPWARYLEWLFPTETLLLEL was purchased from C S Bio Company (Menlo Park, CA, USA).
Zeiderman M.R., Morgan D.E., Christein J.D., Grizzle W.E., McMasters K.M, & McNally L.R. (2016). Acidic pH-targeted chitosan capped mesoporous silica coated gold nanorods facilitate detection of pancreatic tumors via multispectral optoacoustic tomography. ACS biomaterials science & engineering, 2(7), 1108-1120.
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3

Fluorescein Reduction and Nanoparticle Synthesis

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Reagents for the reduction of fluorescein
(fluorescein sodium salt, BioReagent, suitable for fluorescence) by
borohydride (sodium borohydride, powder, ≥ 98.0%) were purchased
from Sigma-Aldrich. For nanoparticle synthesis, Au(III) chloride trihydrate
(HAuCl4·3H2O, ≥99.9%, Sigma-Aldrich),
hexadecyltrimethylammonium chloride (CTAC, 99%, Acros Organics), sodium
borohydride (NaBH4, ≥98%, Sigma-Aldrich), sodium
bromide (NaBr, ≥99%, Sigma-Aldrich), potassium iodide (KI,
≥99%, Sigma-Aldrich), l-ascorbic acid (≥99%,
Sigma-Aldrich), silver nitrate (AgNO3, ≥99.0%, Sigma-Aldrich),
polyvinylpyrrolidione (PVP, average MW = ∼55 000, Sigma-Aldrich),
sodium citrate tribasic dihydrate (Sigma-Aldrich, ≥99.0%),
acetone (AnalaR NORMAPUR, VWR), and hydrogen peroxide (H2O2, 30% w/w in H2O, Sigma-Aldrich) were used
without further purification. Ultrapure water (Milli-Q Advantage A10
water purification, Merck) was used for all nanoparticle synthesis
and washing.
Levin S., Lerch S., Boje A., Fritzsche J., KK S., Ström H., Moth-Poulsen K., Sundén H., Hellman A., Westerlund F, & Langhammer C. (2022). Nanofluidic Trapping of Faceted Colloidal Nanocrystals for Parallel Single-Particle Catalysis. ACS Nano, 16(9), 15206-15214.
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4

Synthesis and Characterization of Metallic Nanoparticles

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All reagents
used without further purification in this study including sodium nitrate
(NaNO3), potassium permanganate (KMnO4), hydrogen
peroxide (H2O2), sulfuric acid (H2SO4), sodium borohydride (NaBH4), gold tetrachloroaurate
solution (HAuCl4·3H2O), sodium hydroxide
(NaOH), sodium borohydride (NaBH4), and methylene blue
(MB) were purchased from Merck.
El-Maghrabi N., El-Borady O.M., Hosny M, & Fawzy M. (2021). Catalytic and Medical Potential of a Phyto-Functionalized Reduced Graphene Oxide–Gold Nanocomposite Using Willow-Leaved Knotgrass. ACS Omega, 6(50), 34954-34966.
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5

Gold Nanoparticle Synthesis and Characterization

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Tetrachloroauric(iii) acid trihydrate (HAuCl4·3H2O, 99.5%), trisodium citrate dihydrate (TSC, 99.0%), silver nitrate (AgNO3, 99.8%), sodium borohydride (NaBH4, 96.0%), l(+)-ascorbic acid (AA, 99.0%), n-hexane (C6H14, anhydrous, >99%), and DI water (>18 MW, Millipore, conductivity <4.3 μS cm−1) were purchased from Sigma-Aldrich (Darmstadt, Germany). Cetyltrimethylammonium bromide (CTAB, 99.0%) was purchased from HIMEDIA (Mumbai, India). Crystal violet (C25N3H30Cl, 99.0%) was purchased from AK Scientific, Inc. (Union City, USA). The above-mentioned chemicals were analytical grade and used without further purification. All experiment solutions were prepared using deionized water (DI). Before synthesizing the nanoparticles, glassware and stirring bars were washed with aqua regia water (HCl : HNO3, optimal in a molar ratio of 3 : 1), and then thoroughly washed with deionized water.
Van Vu S., Nguyen A.T., Cao Tran A.T., Thi Le V.H., Lo T.N., Ho T.H., Pham N.N., Park I, & Vo K.Q. (2023). Differences between surfactant-free Au@Ag and CTAB-stabilized Au@Ag star-like nanoparticles in the preparation of nanoarrays to improve their surface-enhanced Raman scattering (SERS) performance. Nanoscale Advances, 5(20), 5543-5561.
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6

Synthesis of Gold Nanoparticles

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Chloroauric acid (HAuCl4·4H2O) was purchased from Sinopharm Chemical Reagent Co., Ltd. (Beijing, China). Silver nitrate (AgNO3, 99.0%), L (+)-ascorbic acid (C6H8O6, 99.0%), sodium borohydride (NaBH4, 96.0%), trisodium citrate (TSC, 99.0%), and DI water (>18 MW, Millipore, conductivity <4.3 μS cm−1) were obtained from Sigma-Aldrich (Darmstadt, Germany). Hydrogen peroxide (H2O2, 30.0%) and sodium hydroxide (NaOH, 96.0%) were obtained from Xilong Scientific Chemical Reagent Co., Ltd. (Shantou, China). Cetyltrimethylammonium bromide (CTAB, 99.0%) was purchased from HIMEDIA (Mumbai, India). Thiram (C6H12N2S4, 97.0%) was purchased from AK Scientific, Inc. (Union City, USA). All reagents were used without further purification, and the aqueous solution experiments were prepared using DI water. All glassware and magnetic stirring bars were cleaned with aqua regia (HCl/HNO3, volume ratio 3 : 1) and thoroughly rinsed with Millipore water (conductivity <4.3 μS cm−1) several times prior to use in all experiments.
Quang A.T., Nguyen T.A., Vu S.V., Lo T.N., Park I, & Vo K.Q. (2022). Facile tuning of tip sharpness on gold nanostars by the controlled seed-growth method and coating with a silver shell for detection of thiram using surface enhanced Raman spectroscopy (SERS). RSC Advances, 12(35), 22815-22825.
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7

Synthesis of Silver Nanoparticles

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Ag-NPs colloidal solution (17 ± 5 nm) was prepared by co-precipitation protocol through the reduction of silver nitrate (AgNO3) (99.99%, Aldrich, U.S.A.) with sodium borohydride (99%, Aldrich, U.S.A.) under boiling conditions [20 (link)]. The concentration of silver in the prepared solution was 10 mM.
Hassanen E.I., Morsy E.A., Hussien A.M., Farroh K.Y, & Ali M.E. (2021). Comparative assessment of the bactericidal effect of nanoparticles of copper oxide, silver, and chitosan-silver against Escherichia coli infection in broilers. Bioscience Reports, 41(4), BSR20204091.
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8

Silver Nanoparticle Synthesis and Characterization

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All reagents were purchased from Sigma-Aldrich and used without further purification: silver nitrate (AgNO3, 99%, metal basis), triphenylphosphine (PPh3, 99%), 1,3-benzene dithiol (SSR, 99%), sodium borohydride (NaBH4, 99.9%), sodium acetate (CH3COONa, 99%), methylene chloride (CH2Cl2, HPLC, Aldrich), methanol (CH3OH, HPLC, Aldrich), N,N-dimethylformamide (DMF, HPLC, Aldrich), N-methyl-2-pyrrolidone (NMP, HPLC, Aldrich), and ethyl ether ((C2H5)2O, HPLC, Aldrich).
Kang X., Wei X., Xiang P., Tian X., Zuo Z., Song F., Wang S, & Zhu M. (2020). Rendering hydrophobic nanoclusters water-soluble and biocompatible. Chemical Science, 11(18), 4808-4816.
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9

Synthesis of Antimicrobial Nanoparticles

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Zinc nitrate hexahydrate (Zn(NO3)2 6H2O, 98%), silver nitrate (AgNO3, 99%), 4-nitrophenol and sodium borohydride (NaBH4) were purchased from Aldrich and used as precursors. Sodium alginate was purchased from Aldrich and used as supplied. Deionized water was used in all experiments. Escherichia coli (ATCC-8739) and Staphylococcus aureus (ATCC-6538) were used for the bacterial studies.
Oualid H.A., Amadine O., Essamlali Y., Kadmiri I.M., El Arroussi H, & Zahouily M. (2019). Highly efficient catalytic/sonocatalytic reduction of 4-nitrophenol and antibacterial activity through a bifunctional Ag/ZnO nanohybrid material prepared via a sodium alginate method. Nanoscale Advances, 1(8), 3151-3163.
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10

Synthesis and Characterization of Metal-Dye Complexes

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Acid Red dye (AR94) was purchased from TCI and used without any further purification. The metal salts as AgNO3, Pb(NO3)2, KCl, MnCl2·4H2O, LaCl3·7H2O, ZnCl2·4H2O, HgCl2·2H2O, CaCl2·2H2O, CdNO3·4H2O, CoCl2·6H2O, NiCl2·6H2O, Pb(CH3COOH)2 and Ag2SO4 were obtained from Merck-Aldrich and used without purification. Trisodium citrate, sodium borohydride, Triton-X-100, cetyl trimethyl ammonium bromide (CTAB) and titanium butoxide were used as received from Aldrich.
Kamel G.M., El-Nahass M.N., El-Khouly M.E., Fayed T.A, & El-Kemary M. (2019). Simple, selective detection and efficient removal of toxic lead and silver metal ions using Acid Red 94. RSC Advances, 9(15), 8355-8363.
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