A new effective nano-adsorbent and antibacterial material of hydroxyapatite

Chahkandi, Mohammad; Arami, Seyedeh Roghayyeh Saadatdar; Mirzaei, Masoud; Mahdavi, Behnam; Hosseini-Tabar, Seyed Mahmod

doi:10.1007/s13738-018-1546-1

Cited by 11 publications

(4 citation statements)

References 63 publications

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“…Besides, zeolites have a permanent internal electric eld that can cause higher separation of e/h pairs in the photoexcitedZnO species (Koc et al 2016;Millot et al 2004). In the case of CNP, higher photodegradation rate can be also related to the higher effective surface area ( Chahkandi et al 2019;NorouziEsfahani et al 2020).…”

Section: The Effects Of Clinoptilolite Zno Supporting and Loaded-znoamountmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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The ZnO supported on the ball-mill prepared clinoptilolite nanoparticles (CNPs) was prepared via an ionexchange process followed by the calcination process. The ZnO-CNP catalyst was brie y characterized by XRD, FTIR, and DRS techniques. The pHpzc value for the various ZnO-CNPs was about 7.1 that no changed with the ZnO loading. By applying the Scherrer equation on the XRD results, a nano-dimension was obtained for the catalyst. Band gap energy of the ZnO-CNP samples were estimated by applying the Kubelka-Munk equation on the DRS re ectance spectra. The supported ZnO-CNP sample was then used in the photodegradation of 2,4-dichloroaniline (DCA).The effects of the most important key operating factors on the degradation e ciency was kinetically studied by applying the Hinshelwood equation on the results. The ZnO-CNP catalyst with 2 w% ZnO showed the best photocatalytic rate in the optimal conditions of 0.75 g/L, C DCA : 15 ppm, and the initial pH: 5.8. Finally, HPLC analysis of the blank and the photodegraded DCA solutions at 180 and 300 min con rmed 74 and 87% of DCA molecules were degraded during these times.

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Section: The Effects Of Clinoptilolite Zno Supporting and Loaded-znoamountmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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“…Chahkandi et al prepared K-HAP and revealed that particle size was, on average, 65-70 nm through XRD and TEM. Further, they reported the antibacterial activity of K-HAP in addition to the dye removal efficiency against Congo red (CR) [103].…”

Section: Potassium (K + )mentioning

confidence: 99%

Nutrient-Doped Hydroxyapatite: Structure, Synthesis and Properties

Ammar,

Ashraf,

Baltrusaitis

2023

Ceramics

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Complex inorganic powders based on calcium phosphates have found a plethora of practical applications. Of particular interest are the CaO-P2O5 system-based multi-component material powders and granules as the source of major- and micronutrients for the plants. The emerging strategy is to use nano fertilizers based on hydroxyapatite (HAP) for phosphorus and other nutrient delivery. The doping of micronutrients into HAP structure presents an interesting challenge in obtaining specific phase compositions of these calcium phosphates. Various techniques, including mechanochemical synthesis, have been employed to fabricate doped HAP. Mechanochemical synthesis is of particular interest in this review since it presents a relatively simple, scalable, and cost-effective method of calcium phosphate powder processing. The method involves the use of mechanical force to promote chemical reactions and create nanometric powders. This technique has been successfully applied to produce HAP nanoparticles alone, and HAP doped with other elements, such as zinc and magnesium. Nanofertilizers developed through mechanochemical synthesis can offer several advantages over conventional fertilizers. Their nanoscale size allows for rapid absorption and controlled release of nutrients, which leads to improved nutrient uptake efficiency by plants. Furthermore, the tailored properties of HAP-based nano fertilizers, such as controlled porosity and degradation levels, contribute to their effectiveness in providing plant nutrition.

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“…Because of the increasing tolerance of microbial biofilms to antibiotics, disinfectants, and host immune system effectors, the development of novel, effective, preventive, and therapeutic strategies became compulsory. 39,40 To the best of our knowledge, this is the first report in the literature on the synthesis using pulsed laser deposition (PLD) of BHA films doped with 5 and 15 wt % CLIN and Al 2 O 3 and their physical−chemical and preliminary in vitro biological investigation. We aimed for fabrication of biocompatible implant coatings, from natural, renewable, and low-cost resources (i.e., HA derived from bovine bone and volcanic tuff zeolite), with significant potential for biomedical applications, with emphasis on improved biocompatibility and prevention of bacterial adhesion and biofilm development.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Medical device-associated infections stand for one of the most frequent hospital-acquired contaminations due to a large spectrum of bacterial and fungal opportunistic pathogens. Because of the increasing tolerance of microbial biofilms to antibiotics, disinfectants, and host immune system effectors, the development of novel, effective, preventive, and therapeutic strategies became compulsory. , …”

Section: Introductionmentioning

confidence: 99%

Antimicrobial and Cytocompatible Bovine Hydroxyapatite-Alumina-Zeolite Composite Coatings Synthesized by Pulsed Laser Deposition from Low-Cost Sustainable Natural Resources

Popescu-Pelin

Ristoscu

Duta

et al. 2020

ACS Sustainable Chem. Eng.

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Bovine hydroxyapatite (BHA) and BHA blended with clinoptilolite (CLIN) and alumina (Al 2 O 3 ) coatings were synthesized using pulsed laser deposition (PLD) with a KrF* excimer laser source (λ = 248 nm, τ FWHM ≤ 25 ns). Physical− chemical characteristics and the potential use of coatings for preventing bacteria adhesion and biofilm formation were investigated. Optimized PLD conditions were selected for coatings with rough morphologies, suitable for good cell adhesion and implant anchorage and good replication of the source target composition. The crystallinity of composite coatings was progressively decreasing with the augment of the Al 2 O 3 and CLIN contents, which in turn can facilitate an efficacious release of active components. Al 2 O 3 -and CLIN-containing coatings exhibited high cytocompatibility and specific antibiofilm profiles, preventing the initiation and maturation of bacterial biofilms. Optimum biological activity profiles associated with the use of sustainable and/or inexpensive materials are, in our opinion, of key importance for the future development of performant implant coatings, which should be perfectly compatible with the surrounding tissue while preventing postsurgical endogenous or nosocomial infections.

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A new effective nano-adsorbent and antibacterial material of hydroxyapatite

Cited by 11 publications

References 63 publications

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Nutrient-Doped Hydroxyapatite: Structure, Synthesis and Properties

Antimicrobial and Cytocompatible Bovine Hydroxyapatite-Alumina-Zeolite Composite Coatings Synthesized by Pulsed Laser Deposition from Low-Cost Sustainable Natural Resources

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