Facile and rapid in-situ synthesis of chitosan-ZnO nano-hybrids applicable in medical purposes; a novel combination of biomineralization, ultrasound, and bio-safe morphology-conducting agent

Zabihi, Erfan; Babaei, Amir; Shahrampour, Dina; Arab‐Bafrani, Zahra; Mirshahidi, Kiana; Majidi, Hoomaan Joz

doi:10.1016/j.ijbiomac.2019.01.224

Cited by 67 publications

(27 citation statements)

References 59 publications

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“…In the FTIR spectrum of ZnO nanoparticles (Figure 3(a)), the peak at 3449 cm −1 corresponds to the O-H stretching vibration of H 2 O in ZnO; the peak at 1634 cm −1 may be due to the O-H bending vibration; the H-O-H bending vibration or the absorbed CO 2 bands may be responsible for the peak at 1382 cm −1 ; and the band in the range of 528-435 cm −1 refers to the stretching mode of Zn-O [24][25][26]. In the spectrum of chitosan ( Figure 3(b)), the broad peak at 3463 cm −1 is due to the -OH/-NH 2 stretching vibration; the peaks at 2930 and 2860 cm −1 are attributed to the C-H stretching vibration; the peak at 1651 cm −1 corresponds to the amino group bending vibrations; the peak at 1564 cm −1 may be due to the deformation of amide II; and the peaks at 1064 and 1023 cm −1 may refer to the C-O stretching vibration [27][28][29][30][31]. Compared to the spectrum of chitosan, a new band from 528 to 412 cm −1 referring to the Zn-O stretching appears in the spectrum of ZnO/chitosan strong intermolecular hydrogen bonding interaction between chitosan and ZnO [32].…”

Section: Resultsmentioning

confidence: 99%

In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

Nguyen

Nguyen³

2020

Advances in Polymer Technology

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ZnO/chitosan nanocomposite was successfully synthesized by in-situ precipitation method. The material was characterized by XRD, FESEM, TEM, FTIR, BET, and TGA. Results show that ZnO/chitosan nanocomposite has spherical shape with the average size of 20–25 nm. BET surface area and the average pore size of ZnO/chitosan nanocomposite are 2.2436 (m2/g) and 12.2 nm, respectively. The material was applied as an adsorbent for congo red removal from aqueous solutions. The congo red adsorption is better described by the Langmuir model (R2=0.996) than by the Freundlich model (R2=0.962). Therefore, it can be presumed that congo red was adsorbed in a single monolayer with the theoretical maximum adsorption capacity of 227.3 (mg/g). This is comparable to other available adsorbents. It can be suggested that ZnO/chitosan nanocomposite could serve as promising adsorbent for congo red in wastewater treatment technology.

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Section: Resultsmentioning

confidence: 99%

In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

Nguyen

Nguyen³

2020

Advances in Polymer Technology

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“…In this regard, oxygen functional groups of GO such as hydroxyl, carbonyl, carboxyl, and epoxy groups provide a proper platform to bond with other materials 29 . Natural polymers specifically polysaccharides are abundantly accessible, economic, non‐toxic, and bio‐degradable, which can be an appropriate choice for this purpose 42‐46 . According to our previous works, it was demonstrated that chitosan (CS) as the second most abundant natural biopolymers is able to covalently bond with GO through the formation of amide linkage resulting in the enhancement of antibacterial activity and also strikingly diminishing the cell toxicity of GO nanoparticles 27,28 …”

Section: Introductionmentioning

confidence: 99%

Tuning polylactic acid scaffolds for tissue engineering purposes by incorporating graphene oxide‐chitosan nano‐hybrids

Majidi

Babaei

Kazemi‐Pasarvi

et al. 2020

Polymers for Advanced Techs

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The main goal of this study was to take an effective approach to promote polylactic acid (PLA) bio‐applications. In this regard, graphene oxide (GO) and spherical structure of GO‐chitosan nano‐hybrids (GO‐CS) were successfully synthesized and characterized using transmission electron microscopy, atomic force microscopy, Fourier‐transform infrared, UV–Vis, and elemental analyses. Thereafter, PLA scaffolds containing 1 wt% and 2 wt% of synthesized nanomaterials were fabricated through the solvent casting/particulate leaching procedure. Then, the biodegradability, cell adhesion, and bio‐safety properties of the prepared scaffolds were investigated. The results of bio‐degradation analyses demonstrated that the used nanomaterials prevented PLA from rapid and excessive degradation. The cell viability and contact angle results revealed that the surface hydrophilicity of PLA scaffolds was noticeably enhanced using both GO and GO‐CS nanoparticles. Although scaffolds containing GO represented a more hydrophilic surface, their cell viability reduced as a consequence of GO cytotoxicity. It was also revealed that incorporation of GO‐CS nano‐hybrids into PLA scaffold tuned the cell viability through facilitating cell adhesion, growth, and proliferation processes.

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“…XRD characterization is commonly used to evaluate the thickness, structure, extent, and degree of intercalation of layered nanomaterials in nanocomposites 19‐22 . For the case of the XRD pattern of fabricated nanocomposites in this work (Figure 2), two peaks are observed at 20.5° and 26.52°.…”

Section: Resultsmentioning

confidence: 91%

Analysis of dual role of nanographene on the microstructure‐properties correlation of TPU/NG nanocomposite

Gholizadeh

Babaei

Ziaratban

2020

Polymers for Advanced Techs

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Synthesis of nanographene (NG) and thermoplastic polyurethane (TPU)/NG nanocomposites by a facile and cost‐effective method was pursued in this work. For that purpose, NG was synthesized via a combination of microwave (MW) and shear mixing done by a simple kitchen blender. Next, TPU/NG nanocomposites were prepared by the kitchen blender in the solution state. Afterward, with variable amounts of the NG, TPU/NG nanocomposites were fabricated and their mechanical and rheological performances were comprehensively studied. It was established that the dispersion quality of NG had a fundamental impact on the rheological and mechanical properties of the fabricated nanocomposites which were even more fascinating than that of other nanofillers. It was discussed and suggested that this interesting presentation might have been originated from the dual role (reinforcement and a lubricant agent) of NG due to its size, dispersion state, and added amount.

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Facile and rapid in-situ synthesis of chitosan-ZnO nano-hybrids applicable in medical purposes; a novel combination of biomineralization, ultrasound, and bio-safe morphology-conducting agent

Cited by 67 publications

References 59 publications

In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

Tuning polylactic acid scaffolds for tissue engineering purposes by incorporating graphene oxide‐chitosan nano‐hybrids

Analysis of dual role of nanographene on the microstructure‐properties correlation of TPU/NG nanocomposite

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