Surface cationic functionalized nano-hydroxyapatite – Preparation, characterization, effect of coverage on properties and related applications

Ţîmpu, Daniel; Săcărescu, Liviu; Vasiliu, Tudor; Dinu, Maria Valentina; David, Geta

doi:10.1016/j.eurpolymj.2020.109759

Cited by 13 publications

(13 citation statements)

References 29 publications

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“…It is interesting to note that generally the formation of crystals with this shape has been reported to take place in the presence of surfactants, which determine and orient the crystal growth. 30,31 In this work, however, no surfactant was employed.…”

Section: Resultsmentioning

confidence: 99%

Cork-derived hierarchically porous hydroxyapatite with different stoichiometries for biomedical and environmental applications

Scalera

Quarta

Tobaldi

et al. 2021

Mater. Chem. Front.

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Section: Resultsmentioning

confidence: 99%

Cork-derived hierarchically porous hydroxyapatite with different stoichiometries for biomedical and environmental applications

Scalera

Quarta

Tobaldi

et al. 2021

Mater. Chem. Front.

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“…[ 32 ] As seen, the PEI@PAAc spectrum exhibited new bands at 1652 and 1627 cm −1 attributable to the amide I band of tertiary and secondary amide groups. [ 33 ] The new band at 1508 cm −1 is related to the amide II band of secondary amides. [ 34–36 ] Additionally, the decrease of intensity noted for the band at 1242 cm −1 referring to the CO stretching (carboxylic acids) can be also utilized to confirm the coating of the PAAc microparticles by PEI.…”

Section: Resultsmentioning

confidence: 99%

Copper supported on polyethyleneimine‐coated microparticles for the efficient synthesis of organoselenium compounds

Souza

Aquino

Nunes

et al. 2022

Applied Organom Chemis

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Copper‐catalyzed reactions are in continuous evidence due to their attractive features, and the use of solid materials to support this metal has broadened the possibilities in terms of application. To demonstrate this, polyacrylic acid (PAAc) microparticles coated with polyethyleneimine (PEI) were synthesized and utilized to support Cu2+ ions. These hybrid microparticles were tested as heterogeneous catalysts in the synthesis of 3‐arylselanylindoles. Overall, products were synthesized in good to moderate yields using 10 mg of the catalyst containing a meager amount of Cu2+ (2 μmol). Also, the heterogeneous reaction mediated by PEI@PAAc/Cu2+ microparticles was more efficient than the homogeneous catalysis. Reuse experiments demonstrated that PEI@PAAc/Cu2+ microparticles show appreciable catalytic performance up to three consecutive runs under the tested experimental conditions. Overall, the PEI@PAAc/Cu2+ microparticles serve as a support material for Cu2+ and can be exploited as heterogeneous catalysts for the synthesis of organoselenium compounds.

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“…HAP nanoparticles were modified with zoledronate for the enhancement of the biomineralization properties of the HYH-HAP gels [45]. Surface functionalization of HAP nanoparticles with linear or branched polyethylenimine and arginine facilitated HAP dispersion and allowed for improved distribution of HAP in the HYH gel matrix [46], which was a prerequisite for a successful application in drug/gene delivery. There is tremendous interest in the development of organic and inorganic crosslinking agents for HYH gels and analysis of their influence on the gel's microstructure and properties [41,42,47,48].…”

Section: Composite Gelsmentioning

confidence: 99%

“…HAP nanoparticles were modified with zoledronate for the enhancement of the biomineralization properties of the HYH–HAP gels [ 45 ]. Surface functionalization of HAP nanoparticles with linear or branched polyethylenimine and arginine facilitated HAP dispersion and allowed for improved distribution of HAP in the HYH gel matrix [ 46 ], which was a prerequisite for a successful application in drug/gene delivery.…”

Section: Hyh–hap and Hyh–cap Compositesmentioning

confidence: 99%

Hyaluronic-Acid-Based Organic-Inorganic Composites for Biomedical Applications

2021

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Applications of natural hyaluronic acid (HYH) for the fabrication of organic–inorganic composites for biomedical applications are described. Such composites combine unique functional properties of HYH with functional properties of hydroxyapatite, various bioceramics, bioglass, biocements, metal nanoparticles, and quantum dots. Functional properties of advanced composite gels, scaffold materials, cements, particles, films, and coatings are described. Benefiting from the synergy of properties of HYH and inorganic components, advanced composites provide a platform for the development of new drug delivery materials. Many advanced properties of composites are attributed to the ability of HYH to promote biomineralization. Properties of HYH are a key factor for the development of colloidal and electrochemical methods for the fabrication of films and protective coatings for surface modification of biomedical implants and the development of advanced biosensors. Overcoming limitations of traditional materials, HYH is used as a biocompatible capping, dispersing, and structure-directing agent for the synthesis of functional inorganic materials and composites. Gel-forming properties of HYH enable a facile and straightforward approach to the fabrication of antimicrobial materials in different forms. Of particular interest are applications of HYH for the fabrication of biosensors. This review summarizes manufacturing strategies and mechanisms and outlines future trends in the development of functional biocomposites.

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Surface cationic functionalized nano-hydroxyapatite – Preparation, characterization, effect of coverage on properties and related applications

Cited by 13 publications

References 29 publications

Cork-derived hierarchically porous hydroxyapatite with different stoichiometries for biomedical and environmental applications

Cork-derived hierarchically porous hydroxyapatite with different stoichiometries for biomedical and environmental applications

Copper supported on polyethyleneimine‐coated microparticles for the efficient synthesis of organoselenium compounds

Hyaluronic-Acid-Based Organic-Inorganic Composites for Biomedical Applications

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