Hierarchical self-assembly of photoluminescent CdS nanoparticles into a bile acid derived organogel: morphological and photophysical properties

Chatterjee, Sayantan; Maitra, Uday

doi:10.1039/c7cp02519j

Cited by 8 publications

(6 citation statements)

References 65 publications

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“…BS and BSD in the form of gels, solutions, or mixtures with conventional surfactants can be used to template the in situ formation or organization of different types of inorganic nanostructures such as silica, metal, , and semiconductive nanoparticles, , nanoGUMBOS, , and semiconductive nanotubes (Figure a). , Solutions of BSs can be also used in metallic nanoparticle synthesis, where it was observed that BSs present the unusual double role of capping and reducing agents at room temperature. Different examples of BS- and BSD-capped spherical nanoparticles are reported along with other unconventional morphologies such as hexagonal and triangular plates .…”

Section: Applicationsmentioning

confidence: 99%

Bile Salts: Natural Surfactants and Precursors of a Broad Family of Complex Amphiphiles

et al. 2018

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Bile salts (BSs) are naturally occurring rigid surfactants with a steroidal skeleton and specific self-assembly and interface behaviors. Using bile salts as precursors, derivatives can be synthesized to obtain molecules with specific functionalities and amphiphilic structure. Modifications on single molecules are normally performed by substituting the least-hindered hydroxyl group on carbon C-3 of the steroidal A ring or at the end of the lateral chain. This leads to monosteroidal rigid building blocks that are often able to self-organize into 1D structures such as tubules, twisted ribbons, and fibrils with helical supramolecular packing. Tubular aggregates are of particular interest, and they are characterized by cross-section inner diameters spanning a wide range of values (3−500 nm). They can form through appealing pH-or temperature-responsive aggregation and in mixtures of bile salt derivatives to provide mixed tubules with tunable charge and size. Other derivatives can be prepared by covalently linking two or more bile salt molecules to provide complex systems such as oligomers, dendrimers, and polymeric materials. The unconventional amphiphilic molecular structure imparts specific features to BSs and derivatives that can be exploited in the formulation of capsules, drug carriers, dispersants, and templates for the synthesis of nanomaterials.

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Section: Applicationsmentioning

confidence: 99%

Bile Salts: Natural Surfactants and Precursors of a Broad Family of Complex Amphiphiles

et al. 2018

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“…A lithocholic acid‐derived dimeric amide was synthesized and used as a gelator in organic solvents. [ 73 ] Photoluminescent CdS QDs were synthesized in the gel matrix and formed 1D arrays due to their interactions with the gelator molecules. [ 73 ] Bhowmik et al [ 74 ] developed a strategy for the fabrication of LnF 3 NPs using Ln cholate hydrogel.…”

Section: Fabrication Of Composite Gelsmentioning

confidence: 99%

“…[ 73 ] Photoluminescent CdS QDs were synthesized in the gel matrix and formed 1D arrays due to their interactions with the gelator molecules. [ 73 ] Bhowmik et al [ 74 ] developed a strategy for the fabrication of LnF 3 NPs using Ln cholate hydrogel. This technique offers the advantages of simple room‐temperature synthesis without the use of capping agents.…”

Section: Fabrication Of Composite Gelsmentioning

confidence: 99%

Multifunctional Properties of Commercial Bile Salts for Advanced Materials Engineering

et al. 2021

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Applications of bile acids (BAs) and bile salts (BSs) in the nanotechnology of functional materials are described. The exceptionally strong solubilization and dispersion power of BAs/BSs is a key factor for the solubilization of dyes, drugs, and polymers for electronic, optical, and biomedical devices, fabrication of composites, based on carbon nanotubes, graphene, diamonds, quantum dots, and polymers for applications in energy storage devices, coatings for corrosion protection of metals, sensors and electronic devices. BAs/BSs have attracted attention for synthesis, design, and surface modification of advanced materials. BAs/BSs are used as reducing, capping, chelating and dispersing agents for the synthesis of nanoparticles of metals and alloys, and low temperature synthesis of stoichiometric nanostructured complex oxides. BAs/BSs exhibit unique selfassembly properties, which are successfully used for the template synthesis of functional nanoparticles of controlled shapes. Particularly important are applications of BAs/BSs in the fabrication of dye sensitized solar cells with enhanced efficiency. Electrochemical strategies are discovered for the deposition of BA films and composites. Of particular interest are the unique gel-forming properties of BAs/BSs, which provide a basis for the synthesis of nanoparticles of controlled size and fabrication of novel materials with advanced functionality.

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“…Further attempts of bile acids functionalization have been presented in recent reports. There are a couple of reports discussing p -tertbutylbenzoyl derivatives of cholic acid, which when mixed with a copolymer and in a covalent conjugation with tripeptide demonstrate fabrication of thermoresponsive supramolecular structures [ 91 ] and twisted nanoribbons [ 92 ] as well as dimeric bile acid derivatives acting as organogelators for the design of hybrid nanomaterials [ 93 ].…”

Section: Self-assembly Of Amphiphilic Compoundsmentioning

confidence: 99%

Self-Assembly of Amphiphilic Compounds as a Versatile Tool for Construction of Nanoscale Drug Carriers

Kashapov

Gaynanova

Gabdrakhmanov

et al. 2020

IJMS

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This review focuses on synthetic and natural amphiphilic systems prepared from straight-chain and macrocyclic compounds capable of self-assembly with the formation of nanoscale aggregates of different morphology and their application as drug carriers. Since numerous biological species (lipid membrane, bacterial cell wall, mucous membrane, corneal epithelium, biopolymers, e.g., proteins, nucleic acids) bear negatively charged fragments, much attention is paid to cationic carriers providing high affinity for encapsulated drugs to targeted cells. First part of the review is devoted to self-assembling and functional properties of surfactant systems, with special attention focusing on cationic amphiphiles, including those bearing natural or cleavable fragments. Further, lipid formulations, especially liposomes, are discussed in terms of their fabrication and application for intracellular drug delivery. This section highlights several features of these carriers, including noncovalent modification of lipid formulations by cationic surfactants, pH-responsive properties, endosomal escape, etc. Third part of the review deals with nanocarriers based on macrocyclic compounds, with such important characteristics as mucoadhesive properties emphasized. In this section, different combinations of cyclodextrin platform conjugated with polymers is considered as drug delivery systems with synergetic effect that improves solubility, targeting and biocompatibility of formulations.

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Hierarchical self-assembly of photoluminescent CdS nanoparticles into a bile acid derived organogel: morphological and photophysical properties

Cited by 8 publications

References 65 publications

Bile Salts: Natural Surfactants and Precursors of a Broad Family of Complex Amphiphiles

Bile Salts: Natural Surfactants and Precursors of a Broad Family of Complex Amphiphiles

Multifunctional Properties of Commercial Bile Salts for Advanced Materials Engineering

Self-Assembly of Amphiphilic Compounds as a Versatile Tool for Construction of Nanoscale Drug Carriers

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