One-pot synthesis with in situ preconcentration of spherical monodispersed gold nanoparticles using thermoresponsive 3-(alkyldimethylammonio)-propyl sulfate zwitterionic surfactants

2016 ◽  
Vol 52 (65) ◽  
pp. 10000-10003 ◽  
Author(s):  
Yoshitaka Takagai ◽  
Ryo Miura ◽  
Arata Endo ◽  
Willie L. Hinze
Keyword(s):  
Gold Nanoparticles ◽  
Elevated Temperatures ◽  
Reduction Method ◽  
One Pot ◽  
Homogeneous Solutions ◽  
Zwitterionic Surfactants ◽  
One Pot Synthesis ◽  
Citrate Reduction ◽  
In Situ Preconcentration

Homogeneous solutions of thermoresponsive zwitterionic 3-(alkyldimethylammonio)-propyl sulfate surfactants at elevated temperatures were employed for the synthesis of gold nanoparticles (AuNPs) by the citrate reduction method.

One-Pot Synthesis of Monodispersed Silver Nanodecahedra with Optimal SERS Activities Using Seedless Photo-Assisted Citrate Reduction Method

2012 ◽  
Vol 116 (45) ◽  
pp. 24292-24300 ◽  
Author(s):  
Li-Chen Yang ◽  
Yen-Shang Lai ◽  
Chin-Ming Tsai ◽  
Yi-Ting Kong ◽  
Cheng-I Lee ◽  
...  
Keyword(s):  
Reduction Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
Citrate Reduction

One-pot synthesis of acid-induced in situ aggregating theranostic gold nanoparticles with enhanced retention in tumor cells

2019 ◽  
Vol 7 (5) ◽  
pp. 2009-2022 ◽  
Author(s):  
Mingbo Cheng ◽  
Yahui Zhang ◽  
Xiaolei Zhang ◽  
Wei Wang ◽  
Zhi Yuan
Keyword(s):  
Gold Nanoparticles ◽  
Tumor Cells ◽  
Photothermal Therapy ◽  
Tumor Targeting ◽  
Acidic Environment ◽  
Dual Mode ◽  
One Pot ◽  
One Pot Synthesis

In this work, we took advantage of a one-pot reaction to prepare tumor-targeting nanoparticles (Au@T), which could respond to the intracellular acidic environment and form aggregates to enhance the retention effect of nanoparticles in tumor cells, for tumor dual-mode diagnose and photothermal therapy.

Dielectric Nanowire Composites: One-Pot Synthesis of Gold Nanoparticles Encapsulated in Polyaniline Fibers

2013 ◽  
Vol 1453 ◽  
Author(s):  
Eliud K. Mushibe ◽  
Steven C. Murphy ◽  
Kate Raiti-Palazzolo ◽  
Danielle L Mccarthy ◽  
Emilly A. Obuya ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Gold Nanoparticles ◽  
Dielectric Constant ◽  
High Electrical Conductivity ◽  
One Pot ◽  
One Pot Synthesis ◽  
Inorganic Acids ◽  
Vis Spectroscopy ◽  
Synthesis Approach

ABSTRACTNanocomposites of gold nanoparticles (AuNPs) embedded in polyaniline fibers have been fabricated using a one-pot synthesis approach and in-situ polymerization. By using a combination of inorganic acids (e.g. HCl) and camphorsulfonic acid, polyaniline nanostructured fibers of high aspect ratio with diameters of 150 ± 50 nm and several micrometers in length were obtained. These fibers afforded high electrical conductivity of 4.2 ± 0.5 S/cm. Encapsulation of the AuNPs in the polyaniline fibers afforded nanocomposites with high electrical conductivity and dielectric constant of 34.0 ± 0.5 S/cm and 65.3 ± 5 respectively. The morphology of these materials was analyzed using SEM and HRTEM and electronic properties were analyzed using UV-Vis spectroscopy.

Indium Bromide-catalyzed Unprecedented Hydrogenolysis: A Novel One-Pot Synthesis of Per-O-Acetylated β-carboxymethyl O and S-glycosides

2020 ◽  
Vol 24 (8) ◽  
pp. 900-908
Author(s):  
Ram Naresh Yadav ◽  
Amrendra K Singh ◽  
Bimal Banik
Keyword(s):  
Asymmetric Synthesis ◽  
Chiral Auxiliary ◽  
Bioactive Molecules ◽  
One Pot ◽  
Enantiomerically Pure ◽  
Stereoselective Glycosylation ◽  
One Pot Synthesis ◽  
Wide Range

Numerous O (oxa)- and S (thia)-glycosyl esters and their analogous glycosyl acids have been accomplished through stereoselective glycosylation of various peracetylated bromo sugar with benzyl glycolate using InBr3 as a glycosyl promotor followed by in situ hydrogenolysis of resulting glycosyl ester. A tandem glycosylating and hydrogenolytic activity of InBr3 has been successfully investigated in a one-pot procedure. The resulting synthetically valuable and virtually unexplored class of β-CMGL (glycosyl acids) could serve as an excellent potential chiral auxiliary in the asymmetric synthesis of a wide range of enantiomerically pure medicinally prevalent β-lactams and other bioactive molecules of diverse medicinal interest.

Hypervalent-Iodine Mediated One-Pot Synthesis of Isoxazolines and Isoxazoles bearing Difluoromethyl Phosphonate Moiety

2021 ◽  
Author(s):  
Romana Pajkert ◽  
Henryk Koroniak ◽  
Pawel Kafarski ◽  
Gerd Volker Roeschenthaler
Keyword(s):  
Nitrile Oxide ◽  
Dipolar Cycloaddition ◽  
Hypervalent Iodine ◽  
One Pot ◽  
One Pot Synthesis

A one-pot, regioselective 1,3-dipolar cycloaddition of in situ generated (diethoxyphosphoryl)difluoromethyl nitrile oxide toward selected alkenes and alkynes is reported. This protocol enables facile access to 3,5-disubstituted isoxazolines and isoxazoles bearing...

scholarly journals One-Pot Synthesis of Novel Multisubstituted 1-Alkoxyindoles

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1466
Author(s):  
Ye Eun Kim ◽  
Hyunsung Cho ◽  
Yoo Jin Lim ◽  
Chorong Kim ◽  
Sang Hyup Lee
Keyword(s):  
Alkyl Halide ◽  
The Novel ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Consecutive Reactions ◽  
Intramolecular Condensation ◽  
Synthetic Sequence ◽  
Novel Target

Studies on a one-pot synthesis of novel multisubstituted 1-alkoxyindoles 1 and their mechanistic investigations are presented. The synthesis of 1 was successfully achieved through consecutive four step reactions from substrates 2. The substrates 2, prepared through a two-step synthetic sequence, underwent three consecutive reactions of nitro reduction, intramolecular condensation, and nucleophilic 1,5-addition to provide the intermediates, 1-hydroxyindoles 8, which then were alkylated in situ with alkyl halide to afford the novel target products 1. We optimized the reaction conditions for 1 focusing on the alkylation step, along with the consideration of formation of intermediates 8. The optimized condition was SnCl2·2H2O (3.3 eq) and alcohols (R1OH, 2.0 eq) for 1–2 h at 40 °C and then, base (10 eq) and alkyl halides (R2Y, 2.0 eq) for 1–4 h at 25–50 °C. Notably, all four step reactions were performed in one-pot to give 1 in good to modest yields. Furthermore, the mechanistic aspects were also discussed regarding the reaction pathways and the formation of side products. The significance lies in development of efficient one-pot reactions and in generation of new 1-alkoxyindoles.

One-Pot Synthesis of ABC Type Triblock Copolymers via in situ Click [3 + 2] and Diels−Alder [4 + 2] Reactions

2007 ◽  
Vol 40 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Hakan Durmaz ◽  
Aydan Dag ◽  
Ozcan Altintas ◽  
Tuba Erdogan ◽  
Gurkan Hizal ◽  
...  
Keyword(s):  
Triblock Copolymers ◽  
Diels Alder ◽  
One Pot ◽  
One Pot Synthesis
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