Micelles template for the synthesis of hollow nickel phosphate nanospheres

Bastakoti, Bishnu Prasad; Munkaila, Samira; Guragain, Sudhina

doi:10.1016/j.matlet.2019.05.034

Cited by 8 publications

(10 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bastakoti et al reported the single micelle template method to synthesize the sub-50 nm hollow nanospheres of metal phosphate/ carbonate. [33][34][35] The strong binding of metal sources and polymeric micelles leads to fabricating hollow nanospheres with controllable sizes. The polymers are designed in such a way that the metal sources are driven to interact with the specific domain of the polymer.…”

Section: Synthesis Strategies For Hollow Tmpmentioning

confidence: 99%

“…After removing the polymer template via calcination or solvent extraction, the hollow nanospheres of nickel phosphate were obtained (Figure 1). [33] Samira Munkaila earned her master's degree under Dr. Bishnu P. Bastakoti Dr. Bastakoti pursued a Ph.D. from Saga University, Japan as a Monbukagakusho scholar. Following this, he joined the National Institute for Materials Science as a JSPS Fellow.…”

Section: Synthesis Strategies For Hollow Tmpmentioning

confidence: 99%

“…Therefore, this hollow material offers an efficient carrier for drug delivery in biological applications and magnetic imaging. [33] Water splitting is another application where hollow iron phosphates are highly utilized due to their large surface area and potentially active catalytic sites. Hollow iron phosphates were synthesized from iron phosphide nanotubes by a template-free synthesis route involving a simple hydrothermal synthesis of iron-oxy-hydroxide as precursors.…”

Section: Hollow Iron Phosphatesmentioning

confidence: 99%

See 2 more Smart Citations

Hollow Structured Transition Metal Phosphates and Their Applications

Munkaila

Dahal

Kokayi

et al. 2022

The Chemical Record

Self Cite

View full text Add to dashboard Cite

Hollow nanostructures of transition metal phosphate are of immense interest in the existing and evolving areas of technology, due to their high surface area, presence of hollow void, and easy tuning of compositions and dimensions. Emerging synthesis methods such as templatefree methods, hard-templating, and soft-templating are discussed in this review. Applications of these hollow metal phosphates dominate in energy storage and conversions, with specific advantages as supercapacitor materials. Other applications, including drug delivery, water splitting, catalysis, and adsorption, are reviewed. Finally, additional perspectives on the progress of these nanostructures, and their existing challenges related to the current synthesis routes are covered. Therefore, with the strategic modifications of the unique properties of these hollow metal phosphates, broader application requirements are fulfilled.

show abstract

Section: Synthesis Strategies For Hollow Tmpmentioning

confidence: 99%

Section: Synthesis Strategies For Hollow Tmpmentioning

confidence: 99%

Section: Hollow Iron Phosphatesmentioning

confidence: 99%

See 1 more Smart Citation

Hollow Structured Transition Metal Phosphates and Their Applications

Munkaila

Dahal

Kokayi

et al. 2022

The Chemical Record

Self Cite

View full text Add to dashboard Cite

show abstract

“…Micelles provide a promising platform for the template method and have been used, for example, for the fabrication of hollow nanospheres and nanocages. 31 , 32 The groups of Crooks and Kataoka already studied the encapsulation of single dendrimers and dendrimer zinc porphyrins in micelles, respectively. 33 , 34 More recently, our group developed the concept of PAMAM dendrimicelles, formed by coassembly of negatively charged carboxylic acid-terminated dendrimers and oppositely charged poly(vinylpyridine)-poly(ethylene oxide) diblock copolymers or positively charged amine-terminated PAMAM dendrimers and oppositely charged poly(methacrylic acid)-poly(ethylene oxide) diblock copolymers.…”

mentioning

confidence: 99%

“…Micelles provide a promising platform for the template method and have been used, for example, for the fabrication of hollow nanospheres and nanocages. , The groups of Crooks and Kataoka already studied the encapsulation of single dendrimers and dendrimer zinc porphyrins in micelles, respectively. , More recently, our group developed the concept of PAMAM dendrimicelles, formed by coassembly of negatively charged carboxylic acid-terminated dendrimers and oppositely charged poly(vinylpyridine)-poly(ethylene oxide) diblock copolymers or positively charged amine-terminated PAMAM dendrimers and oppositely charged poly(methacrylic acid)-poly(ethylene oxide) diblock copolymers. , The aggregation number of dendrimers in the micellar core can be tuned by varying the dendrimer generation or the pH . Furthermore, nanoparticles have been proven to reside inside the PAMAM dendrimers, ,, providing the possibility to localize and monitor the otherwise poorly visible dendrimers in transmission electron microscopy (TEM).…”

mentioning

confidence: 99%

Dendroids, Discrete Covalently Cross-Linked Dendrimer Superstructures

2021

View full text Add to dashboard Cite

A versatile method is presented to form dendrimer superstructures by exploiting coacervate-core micelles as a template to confine and organize the hyperbranched macromolecules. First, complex coacervate-core micelles are formed from negative−neutral block copolymers and positively charged polyamidoamine dendrimers. The dendrimers inside the micellar core are then covalently cross-linked with each other upon addition of glutaraldehyde. After removal of the block copolymer from the assembly by increasing the salt concentration, consecutively, the formed Schiff bases cross-linking the dendrimers are reduced to amines, followed by a final dialysis step. This leads to well-defined covalently cross-linked nanostructures, coined dendroids, with a size of around 30 nm in diameter and a molecular weight of approximately 2.5 MDa. By incorporating dendrimer-encapsulated gold nanoparticles (AuDENs) into the micelle template strategy, the aggregation number of dendrimers inside the dendroids is determined by counting the nanoparticles in TEM micrographs. Furthermore, TEM performed at different tilt angles and AFM analysis corroborate formation of stable, covalently linked three-dimensional structures. Reconstruction of the TEM tilt series results in a tomogram further illustrating the 3D distribution of the gold nanoparticles, and hence the individual dendrimers, in the nanostructure. These dendroids appear to have a hard, poorly compressible core and a relatively soft outside. The versatility of the hierarchical building up of the supermolecules is illustrated by the controlled and synchronous incorporation of empty dendrimers and AuDENs into a single hybrid dendroid structure. The presented strategy allows for the preparation of a variety of classes of supermolecules, depending on the type of micellar-core macromolecule, e.g., dendrimer, cross-linker, and nanoparticles, used. Considering the broad interest in dendrimers as well as micelles in a plethora of research areas, e.g., (targeted) drug delivery, biomedical imaging, theragnostics, and catalysis, there is a great potential for dendroids and related classes of covalently linked macromolecules, viz., supermolecules.

show abstract

Porous Tungsten Oxide: Recent Advances in Design, Synthesis, and Applications

Bentley

Desai

Bastakoti

2021

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

Tungsten oxide (WO 3 ) has received ever more attention and has been highly researched over the last decade due to its being a low-cost transition metal semiconductor with tunable, yet widely stable, band gaps. This minireview briefly highlights the challenges in the design and synthesis of porous WO 3 including methods, precursors, solvent effects, crystal phases, and surface activities of the porous WO 3 base material. These topics are explored while also drawing a connection of how the morphology and crystal phase affect the band gap. The shifts in band gap not only impact the optical properties of tungsten but also allow tuning to operate on different energy levels, which makes WO 3 highly desirable in many applications such as supercapacitors, batteries, solar cells, catalysts, sensors, smart windows, and bioapplications.

show abstract

Micelles template for the synthesis of hollow nickel phosphate nanospheres

Cited by 8 publications

References 29 publications

Hollow Structured Transition Metal Phosphates and Their Applications

Hollow Structured Transition Metal Phosphates and Their Applications

Dendroids, Discrete Covalently Cross-Linked Dendrimer Superstructures

Porous Tungsten Oxide: Recent Advances in Design, Synthesis, and Applications

Contact Info

Product

Resources

About