Haucl4 4h2o

Manufactured by Sinopharm

Sourced in China

HAuCl4·4H2O is a chemical compound that consists of gold (Au) and chlorine (Cl) in a hydrated form. It is a yellow, crystalline powder that is commonly used as a precursor in the synthesis of various gold nanoparticles and other gold-based materials.

Automatically generated - may contain errors

Lab products found in correlation

Acetic anhydride, by Sinopharm (3 mentions) Triethylamine, by Sinopharm (3 mentions) Resorcinol, by Xilong (3 mentions) Sodium citrate, by Merck Group (2 mentions) Methanol, by Sinopharm (2 mentions) Milli q plus 185, by Merck Group (2 mentions) Ethanol, by Sinopharm (2 mentions) Sodium chloride (nacl), by Sinopharm (2 mentions) Escalab 250xi, by Thermo Fisher Scientific (2 mentions) Cary 6400, by Agilent Technologies (1 mentions) Icap 6300, by Thermo Fisher Scientific (1 mentions) S 4800, by Hitachi (1 mentions) Phs 3c, by INESA (1 mentions) Sodium borohydride, by J&K Scientific (1 mentions) Milli q plus 185 water purification system, by Merck Group (1 mentions) Gd no3 3.6h2o, by Sinopharm (1 mentions) Mnso4 h2o, by Sinopharm (1 mentions) Costar 3915, by Corning (1 mentions) Sodium citrate, by Beijing Chemical Works (1 mentions) Ota standard, by Pribolab (1 mentions)

25 protocols using haucl4 4h2o

Synthesis and Characterization of Nanomaterials

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The instruments used in this study included a pH meter (PHS-3C, INESA, Shanghai, China), a Fourier Transform Infrared Spectrometer (Cary-6400, Agilent, Santa Clara, CA, USA), a Scanning Electron Microscope (S4800, Hitachi, Tokyo, Japan), Thermal Stability Analyser (6300, Hitachi, Tokyo, Japan), an X-ray Photoelectron Spectrometer (Escalab 250 Xi, Thermo Scientific, Waltham, MA, USA), and a coupled plasma atomic emitter (Icap-6300, Thermo Scientific, Waltham, MA, USA).
TCT (99%) was purchased from Shanghai McLean Biochemical Technology Co., Ltd.; EDA, tetrahydrofuran (THF, 99%), and potassium dichromate were provided by Chengdu Cologne Chemical Co., Ltd. (Chengdu, China); HAuCl₄·4H₂O was purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China); and other metal salt solutions purchased fromTianjin Fengchuan Chemical Reagent Technology Co., Ltd. (Tianjin, China). All reagents were used as received without further purification. The experimental water was ultrapure water (18.25 MΩ).

Dong H., Shang G., Zhang Y., Dai E., Shao M., Chen C., He H., Nie Z., Xiong M., Miao D, & Zhao S. (2024). An N-Rich Polymer for the Selective Recovery of Gold from Wastewater. Molecules, 29(10), 2398.

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Multifunctional PAMAM Dendrimer Synthesis

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Ethylenediamine core G5.NH₂ PAMAM dendrimers (molecular weight = 26,010 g/mol) with polydispersity index values less than 1.08 were purchased from Dendritech (Midland, MI, USA). Polyethylene glycol (PEG) monomethyl ether with a carboxyl group at one end (mPEG-COOH) was obtained from Shanghai Yanyi Biotechnology Corporation (Shanghai, China). Gd(NO₃)₃.6H₂O, MnSO₄.H₂O, HAuCl₄.4H₂O, acetic anhydride, triethylamine, and all other chemicals as well as solvents were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Sodium borohydride was purchased from J&K Chemical Ltd. (Shanghai, China). DOTA-NHS was purchased from CheMatech (Dijon, France). The water used in all experiments was purified using a Milli-Q Plus185 water purification system (Millipore, Bedford, MA) with a resistivity greater than 18.2 MΩ cm.

Liu K., Liu C, & Xia J. (2022). The r1 relaxivity and T1 imaging properties of dendrimer-based manganese and gadolinium chelators in magnetic resonance imaging. Frontiers in Bioengineering and Biotechnology, 10, 1004414.

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Coumarin-Based Gold Nanoparticle Synthesis

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Coumarin (98%, AR) was purchased from Macklin Technology Co., Ltd., Shanghai, China, agarose (gel strength 1%) was purchased from Labgic Technology Co., Ltd., Hefei, China, HAuCl₄·4H₂O (AR) was purchased from Sinopharm Chemical Reagent Co., Ltd., Shanghai, China, Sodium citrate (99%, AR) was purchased from Sigma-Aldrich Co., Ltd., Japan, Commercial GNPs (0.1 mg/mL) in sizes of 30 nm, 50 nm, and 70 nm were purchased from Beijing Zhongkeleiming Daojin Technology Co., Ltd., Beijing, China, and 96-well solid white polystyrene assay plates (Costar 3915) were purchased from Corning Inc. Shanghai, China, MilliQ water was used as solvent for all experiments conducted.

Dong X., Tian Y., Wang F., Chen C., Wang Y, & Ma J. (2022). Gold-Nanoparticle-Enhanced Radio-Fluorogenic Hydrogel Sensor for Low Radiation Doses in Clinical Radiotherapy. Polymers, 14(22), 4841.

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OTA Detection Using Aptamer-Based Biosensor

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OTA standard was purchased from Pribolab Pte. Tr. Ltd (Singapore). HAuCl4•4H2O was purchased from Sinopharm Chemical Reagent Co., Ltd. Sodium citrate and other regents were purchased from Beijing Chemical Works Co., Ltd. All chemicals used were of analytical grade.
The single-strand DNA (ssDNA) aptamer used in the present study was synthesized by Sangong Biotech Co., Ltd. (Shanghai, China). The sequence of the ochratoxin A (OTA) aptamer was 5′-GAT CGG GTG TGG GTG GCG TAA AGG GAG CAT CGG ACA-3′ (Fig. 1).

Yin X., Wang S., Liu X., He C., Tang Y., Li Q., Liu J., Su H., Tan T, & Dong Y. (2017). Aptamer-based Colorimetric Biosensing of Ochratoxin A in Fortified White Grape Wine Sample Using Unmodified Gold Nanoparticles. Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 33(6).

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Synthesis of Gold Nanoparticles

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HAuCl₄^.4H₂O was purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Cellulase, pepsin, trypsin and AA were obtained from Yuanye Biotechnology Co., Ltd. (Shanghai, China). Histidine, threonine, lysine, glycine, glutathione (GSH), maltose, sucrose, glucose and metal ions were acquired from Sangon Biotechnology Co., Ltd. (Shanghai, China). All reagents were of analytical purity and used directly. Milli-Q purified water prepared by the PR03200 ultra-pure water meter (Zhongshan Keningte Cleaning Supplies Co., Ltd.) was utilized in all experiments.

Wang B., Fang J., Tang H., Lu S., Chen Y., Yang X, & He Y. (2023). Dual-functional cellulase-mediated gold nanoclusters for ascorbic acid detection and fluorescence bacterial imaging. Frontiers in Bioengineering and Biotechnology, 11, 1258036.

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Synthesis of Gold and Platinum Nanoparticles

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HAuCl₄·4H₂O and H₂PtCl₆·6H₂O were purchased from Sinopharm Chemical Reagent Co. Ltd. Ascorbic acid (AA) and Pluronic F127 were purchased from Sigma. Methoxy-PEG-thiol (M_w = 5000) was purchased from Shanghai Tuo Yang Biotechnology Co. Ltd.

Yang Y., Chen M., Wu Y., Wang P., Zhao Y., Zhu W., Song Z, & Zhang X.B. (2019). Ultrasound assisted one-step synthesis of Au@Pt dendritic nanoparticles with enhanced NIR absorption for photothermal cancer therapy. RSC Advances, 9(49), 28541-28547.

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Luminol-Based Chemiluminescence Detection Protocol

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All reagents used were at least of analytical agent grade and 18.2 MΩ cm⁻¹ resistivity water (90005-02, Labconco Water Pro Ps, Canada) was used throughout this study. A 2.5 × 10⁻² mol L⁻¹ stock solution of luminol (3-aminophthalhydrazide) (Sigma, USA) was prepared by dissolving luminol in 0.1 mol L⁻¹ sodium hydroxide solution. Working solutions of luminol were prepared by diluting the stock solution. Working solutions of H₂O₂ were prepared daily from 30% (v/v) H₂O₂ (Xinke Electrochemical Reagent Factory, Bengbu, China). Sodium citrate and Triton-X 114 was purchased from Sigma-Aldrich. HAuCl₄·4H₂O (48%, w/w) was obtained from Sinopharm Group Chemical Reagent Co. Ltd. (Shanghai, China).

Yan N., Zhu Z., He D., Jin L., Zheng H, & Hu S. (2016). Simultaneous Determination of Size and Quantification of Gold Nanoparticles by Direct Coupling Thin layer Chromatography with Catalyzed Luminol Chemiluminescence. Scientific Reports, 6, 24577.

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Electrochemical Immunosensor for IgG Detection

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Scanning electron microscopy (SEM) images and energy-dispersive X-ray spectroscopy (EDS) analysis were collected using a FEI QUANTA FEG250 coupled with INCA Energy X-MAX-50. Fourier transform infrared spectroscopy (FTIR) spectrum was collected using VERTEX 70 spectrometer (Bruker, Germany). All electrochemistry measurements were performed on a CHI760E electrochemical workstation (Chenhua Instrument Shanghai Co., Ltd, China) by using a conventional three-electrode system consisted of a glassy carbon electrode (GCE, 4 mm in diameter) as working electrode, a saturated calomel electrode (SCE) as the reference electrode, and the platinum wire electrode as the counter electrode.
HAuCl₄·4H₂O was purchased from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). FeCl₃∙6H₂O was purchased from Damao Chemical Reagent Co., Ltd (Tianjin, China). 3-aminopropyl triethoxysilane (APTES) was purchased from XiBao biological technology co., Ltd. (Shanghai, China). Human immunoglobulin G (IgG), goat Anti-Human IgG and bovine serum albumin (BSA, 96–99%) were obtained from Dingguo Biochemical Reagents (Beijing, China). All other reagents were at analytical grade and ultrapure water was used throughout the study.

Li F., Li Y., Dong Y., Jiang L., Wang P., Liu Q., Liu H, & Wei Q. (2016). An ultrasensitive label-free electrochemical immunosensor based on signal amplification strategy of multifunctional magnetic graphene loaded with cadmium ions. Scientific Reports, 6, 21281.

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Ultrasensitive HCG Detection Assay

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A 0.50 mg human chorionic
gonadotropin (HCG,
Beijing Boosen Biotechnology Co., Ltd.) freeze-dried powder was dissolved
in 1.0 mL of water and then diluted to 10 mL to obtain a 50 μg/mL
HCG standard solution. The solution was diluted to a solution of 1
μg/mL before use. A 0.1 mg/mL rabbit antibody of HCG (RHCG,
Beijing Boosen Biotechnology Co., Ltd.), 84 μmoL/L (1%) HAuCl₄·4H₂O (Sinopharm Chemical Reagent Co., Ltd.),
0.1 moL/L H₂O₂, 1% trisodium citrate (TCA, Guangdong
Shantou Xilong Chemical Factory), 0.5 moL/L glucose (GS), 0.1 moL/L
HCl, 0.3 mol/L CH₃COOH, and 0.1 mmoL/L Victoria blue 4R
(VB4r) were prepared. Graphene oxide (GO) was prepared by the Hummer
procedure,^{30 (link)} and 1 mg of GO was dissolved
in 100 mL of water by means of ultrasound to obtain a concentration
of 10 μg/mL of GO. AuNPs with size of 8 nm were prepared by
the NaBH₄ procedure. All reagents are analytically pure,
and the water was double-distilled.

Liang A., Li C., Wang X., Luo Y., Wen G, & Jiang Z. (2017). Immunocontrolling Graphene Oxide Catalytic Nanogold Reaction and Its Application to SERS Quantitative Analysis. ACS Omega, 2(10), 7349-7358.

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Synthesis of Gold Nanoparticles

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HAuCl 4 •4H 2 O and L-methionine were purchased from Sinopharm Chemical Reagent Co. Ltd. (Shanghai, China). Salicylaldehyde (SA) was bought from Aladdin Ltd. (Shanghai, China). rhodamine 6G was bought from Sangon Biotechnology Company, Ltd. (Shanghai, China). NaOH and other inorganic salts of cations were obtained from Laiyang Fine Chemical Plant (Shandong, China). All aqueous solutions were prepared with high purity deionized water (18.2 MΩ cm -1 ).

Sang F., Xiong T., Wang W., Pan J., Shi H, & Zhao Y. (2023). A Simple Schiff Base as Fluorescent Probe for Detection of Al³⁺ in Aqueous Media and its Application in Cells Imaging. Journal of fluorescence, 33(1).

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