The supramolecular approach to the phase transfer of carboxylic calixresorcinarene-capped silver nanoparticles

Ermakova, A.; Morozova, Julia E.; Shalaeva, Yana V.; Syakaev, Victor V.; Nizameev, Irek R.; Kadirov, Marsil K.; Антипин, И. С.; Коновалов, А. И.

doi:10.1016/j.colsurfa.2017.04.045

Cited by 20 publications

(8 citation statements)

References 48 publications

(79 reference statements)

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“…The obvious solution to stabilize nanoparticles and thus prevent their agglomeration, is the use of stabilizers. The selection of stabilizers for silver nanoparticles covers a wide range of various types of simple and complex molecules such as sugars [ 28 ], starch [ 8 ], oligomeric calixarenes [ 34 ], cyclodextrins [ 35 ] or even biological systems [ 5 , 36 , 37 , 38 , 39 ]. A significant number of silver nanoparticle stabilizers are related to the application of polymers such as polystyrene [ 40 ], polyvinylpyrrolidone [ 17 , 22 , 23 , 24 ], polyisopropylacrylamide [ 41 ], hydroxyethylcellulose, polyvinylalcohol [ 23 ], and others.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length

et al. 2017

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The present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer of variable length. UV-VIS spectroscopy, dynamic light scattering, scanning electron microscopy and zeta potential measurements were applied to provide physicochemical characterization of the silver nanoparticles. The mean size values of the nanoparticles were found to be in the 50 to 115 nm range. From the nanoparticle size distributions and scanning electron microscopy images it results that a population of small nanoparticles with the size of several nanometers was confirmed if the nanoparticles were stabilized with gemini molecules with either a short methylene spacer (two or four −CH2− groups) or a long spacer (12 −CH2− groups). The average zeta potential value for silver nanoparticles stabilized with gemini molecules is roughly independent of gemini surfactant spacer length and is approx. +58 mV. An interaction model between silver nanoparticles and gemini molecules which reflects the gained experimental data, is suggested. Microbicidal activity determinations revealed that the silver nanoparticles stabilized with gemini surfactants are more efficient against Gram-negative bacteria and yeasts, which has a direct relation to the interaction mechanism of nanoparticles with the bacterial cell membrane and its structural composition.

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Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length

et al. 2017

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“…Octacarboxylate derivatives of resorcinarene RA-4 were also successfully used as a stabilizer in silver ion reduction [107]. RA-4 increases the affinity of AgNPs formed to the cationic surfactant The presence of eight spatially preorganized functional groups can lead to interesting association behaviors of resorcinarenes.…”

Section: Synthesis and Application Of Resorcin[4]arene-based Agnpsmentioning

confidence: 99%

The Role of Calix[n]arenes and Pillar[n]arenes in the Design of Silver Nanoparticles: Self-Assembly and Application

Padnya

Gorbachuk

Stoikov

2020

IJMS

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Silver nanoparticles (AgNPs) are an attractive alternative to plasmonic gold nanoparticles. The relative cheapness and redox stability determine the growing interest of researchers in obtaining selective plasmonic and electrochemical (bio)sensors based on silver nanoparticles. The controlled synthesis of metal nanoparticles of a defined morphology is a nontrivial task, important for such fields as biochemistry, catalysis, biosensors and microelectronics. Cyclophanes are well known for their great receptor properties and are of particular interest in the creation of metal nanoparticles due to a variety of cyclophane 3D structures and unique redox abilities. Silver ion-based supramolecular assemblies are attractive due to the possibility of reduction by “soft” reducing agents as well as being accessible precursors for silver nanoparticles of predefined morphology, which are promising for implementation in plasmonic sensors. For this purpose, the chemistry of cyclophanes offers a whole arsenal of approaches: exocyclic ion coordination, association, stabilization of the growth centers of metal nanoparticles, as well as in reduction of silver ions. Thus, this review presents the recent advances in the synthesis and stabilization of Ag (0) nanoparticles based on self-assembly of associates with Ag (I) ions with the participation of bulk platforms of cyclophanes (resorcin[4]arenes, (thia)calix[n]arenes, pillar[n]arenes).

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“…Of the nearly 17,000 cases of EVD in Guinea, Liberia, and Sierra Leone, at least 600 were among HCWs, and more than half of them died [106]. MERS-CoV infection continues to have a high fatality rate, and a large proportion of patients are HCWs (26%) [107].…”

Section: Applications For Healthcare Workers (Hcws)mentioning

confidence: 99%

Silver Nano/Microparticles

2020

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The supramolecular approach to the phase transfer of carboxylic calixresorcinarene-capped silver nanoparticles

Cited by 20 publications

References 48 publications

Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length

Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length

The Role of Calix[n]arenes and Pillar[n]arenes in the Design of Silver Nanoparticles: Self-Assembly and Application

Silver Nano/Microparticles

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