Synthesis of Gold Nanoparticle from Adsorbed Au on Hydrotalcite Using SDS and Sodium Citrate as Capping Agent and its Recovery into Pure Gold

2017 ◽  
Vol 901 ◽  
pp. 32-36
Author(s):  
Agustina Sus Andreani ◽  
Suyanta ◽  
Eko Sri Kunarti ◽  
Sri Juari Santosa
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Dodecyl Sulfate ◽  
Infrared Spectra ◽  
Electronic Spectra ◽  
Sodium Citrate ◽  
Sodium Dodecyl ◽  
Pure Gold ◽  
Capping Agent ◽  
Optimum Ph ◽  
Average Size

Gold nanoparticles (AuNPs) have been synthesised from adsorbed Au on hydrotalcite (Mg/Al HT-AA-Au) using SDS (sodium dodecyl sulfate) and sodium citrate as capping agent. Then, the nanoparticles were recovered into pure gold by centrifugation. It is shown that sodium citrate has better activity compared to SDS as the capping agent. The electronic spectra of the resulted AuNPs showed that the optimum pH, sodium citrate concentration and time of sonication were 5, 70 mM, and 2 h, respectively. The results showed that the average size of AuNPs was 32 nm at SPR 531 nm. By centrifugation at 13000 rpm for 8 min, gold dust of Au(0) can be obtained from the gold nanoparticles capped sodium citrate. Based on infrared spectra and XRD, it is proven that the gold dust still contains citric and Mg/Al HT.

scholarly journals Pyrene-Assisted Synthesis of Size-Controlled Gold Nanoparticles in Sodium Dodecyl Sulfate Micelles

Langmuir ◽  
2005 ◽  
Vol 21 (19) ◽  
pp. 8947-8951 ◽  
Author(s):  
Jin-Pei Deng ◽  
Chunhung Wu ◽  
Cheng-His Yang ◽  
Chung-Yuan Mou
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Dodecyl Sulfate ◽  
Sodium Dodecyl ◽  
Dodecyl Sulfate ◽  
Size Controlled

Green synthesis of gold nanoparticles reduced and stabilized by sodium glutamate and sodium dodecyl sulfate

2017 ◽  
Vol 484 (4) ◽  
pp. 774-780 ◽  
Author(s):  
Gil Felicisimo S. Cabrera ◽  
Michelle M. Balbin ◽  
Paul John G. Eugenio ◽  
Charleo S. Zapanta ◽  
Juvy J. Monserate ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Dodecyl Sulfate ◽  
Green Synthesis ◽  
Sodium Dodecyl ◽  
Sodium Glutamate ◽  
Dodecyl Sulfate

scholarly journals BIODEGRADABLE LIPOSOMES FOR ACYCLOVIR-GOLD NANOPARTICLES AS AN EFFICIENT CARRIERFOR ENHANCED TOPICAL DELIVERY

2017 ◽  
Vol 9 (8) ◽  
pp. 60 ◽  
Author(s):  
Heba F. Salem ◽  
Sabry M. Tamam ◽  
Sahar M. Lotayef
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Sodium Citrate ◽  
New Technology ◽  
Antiviral Drug ◽  
Entrapment Efficiency ◽  
Trisodium Citrate ◽  
Capping Agent ◽  
Carboxylic Group ◽  
Molar Ratios

Objective: Gold nanoparticles and nanoliposomes are effective new technology in delivering the bioactive agents and enhancing their performance by increasing the bioavailability. The goal of the present study was the formulation of liposome for the use as a carrier for nanogold conjugated with acyclovir (ACV), an antiviral drug, to enhance ACV delivery.Methods: The gold nanoparticles were used as a capping agent for ACV and sodium citrate was used as reducing agent for the gold. Transmission electron microscopy was used for characterization and to study the morphological and structural properties of drug-metallic nanostructures. Nanoliposomes were formulated using different molar ratios of a positive charge inducer (stearyl amine) or a negative charge inducer (diacetyl phosphate), lecithin, cholesterol and Span 60.Results: Gold nanoparticles with a particle size of 10–20 nm were formed. This small size of the formed particles has a clear effect in reducing the gold nanoparticles toxicity and enhancing the cellular uptake. The amount of sodium citrate used in this preparation influences the size of the gold nanoparticle. The present study employed 1% trisodium citrate that contains a carboxylic group and this carboxylic group works as a reducing and capping agent to synthesize ACV-gold nanoparticles conjugate. Liposomal formula F6 had the highest entrapment efficiency approaching 42%, the low particle size of 160 nm, and zeta potential of 43.5 mV.Conclusion: It is evident from the study that the liposomes can be used as a carrier of ACV conjugated with gold nanoparticles. This new strategy could be used successfully in the treatment of viral infection.

X-ray Reflectivity Studies on the Mixed Langmuir–Blodgett Monolayers of Thiol-Capped Gold Nanoparticles, Dipalmitoylphosphatidylcholine, and Sodium Dodecyl Sulfate

Langmuir ◽  
2017 ◽  
Vol 33 (41) ◽  
pp. 10886-10897 ◽  
Author(s):  
Yi-Tang Chen ◽  
Han-Shiou Su ◽  
Chin-Hua Hung ◽  
Po-Wei Yang ◽  
Yuan Hu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Dodecyl Sulfate ◽  
Sodium Dodecyl ◽  
X Ray ◽  
Langmuir Blodgett ◽  
Dodecyl Sulfate

Synthesis of Highly Faceted Pentagonal- and Hexagonal-Shaped Gold Nanoparticles with Controlled Sizes by Sodium Dodecyl Sulfate

Langmuir ◽  
2004 ◽  
Vol 20 (18) ◽  
pp. 7820-7824 ◽  
Author(s):  
Chun-Hong Kuo ◽  
Tian-Fu Chiang ◽  
Lih-Juann Chen ◽  
Michael H. Huang
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Dodecyl Sulfate ◽  
Sodium Dodecyl ◽  
Dodecyl Sulfate

Heterozygous Abnormal Fibrinogen Osaka III with the Replacement of γ Arginine-275 by Histidine Has an Apparently Higher Molecular Weight γ-Chain Variant

1992 ◽  
Vol 68 (05) ◽  
pp. 534-538 ◽  
Author(s):  
Nobuhiko Yoshida ◽  
Shingi Imaoka ◽  
Hajime Hirata ◽  
Michio Matsuda ◽  
Shinji Asakura
Keyword(s):  
Molecular Weight ◽  
Sodium Dodecyl Sulfate ◽  
Gel Electrophoresis ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Tetraacetic Acid ◽  
Fibrin Monomer ◽  
Sds Page ◽  
Thrombotic Tendency ◽  
Chain Variant

SummaryCongenitally abnormal fibrinogen Osaka III with the replacement of γ Arg-275 by His was found in a 38-year-old female with no bleeding or thrombotic tendency. Release of fibrinopeptide(s) by thrombin or reptilase was normal, but her thrombin or reptilase time in the absence of calcium was markedly prolonged and the polymerization of preformed fibrin monomer which was prepared by the treatment of fibrinogen with thrombin or reptilase was also markedly defective. Propositus' fibrinogen had normal crosslinking abilities of α- and γ-chains. Analysis of fibrinogen chains on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) in the system of Laemmli only revealed the presence of abnormal γ-chain with an apparently higher molecular weight, the presence of which was more clearly detected with SDS-PAGE of fibrin monomer obtained by thrombin treatment. Purified fragment D1 of fibrinogen Osaka III also seemed to contain an apparently higher molecular weight fragment D1 γ remnant on Laemmli gels, which was digested faster than the normal control by plasmin in the presence of [ethy-lenebis(oxyethylenenitrilo)]tetraacetic acid (EGTA).

Sign in / Sign up

Export Citation Format

Share Document