Plant mediated green synthesis and nanoencapsulation of MgO nanoparticle from <i>Calotropis gigantea</i>: Characterisation and kinetic release studies

Hii, Yiik Siang; Jeevanandam, Jaison; Chan, Yen San

doi:10.1080/24701556.2019.1569053

Cited by 20 publications

(13 citation statements)

References 33 publications

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“…These results are well matched with the standard data of JCPDS No. 71–1176 . The peak at the range of 40.49° corresponds to (101) of the hexagonal Mg(OH) 2 crystalline structure (JCPDS No.…”

Section: Resultsmentioning

confidence: 63%

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Dual Valorization of Olive Mill Wastewater by Bio‐Nanosynthesis of Magnesium Oxide and Yarrowia lipolytica Biomass Production

Hamimed

Jebli

Sellami

et al. 2020

Chemistry & Biodiversity

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This research investigates an efficient dual valorization of olive mill wastewater in the biosynthesis of magnesium oxide nanoparticles and in the depollution of the effluent by Yarrowia lipolytica growth evaluation. After removal of polyphenols, the recovered biophenols were reacted with the magnesium precursor to provide magnesium oxide nanoparticles. In order to confirm the biosynthesized magnesium oxide nanoparticles, several analyses were undertaken. The Fourier transform infrared spectrum gives a broad absorption at 658 cm−1 confirming the presence of the magnesium oxide nanoparticles, while the UV/VIS absorption spectroscopy reveals an intense transition with a maximum absorption at 300 nm. The X‐ray diffraction and transmission electron microscopy analyses show that nanoparticles are in pure cubic crystalline with spherical and hexagonal shapes (average size is 19.4 nm). The zeta potential analysis illustrates a negative potential proving a good stability of the biosynthesized nanoparticles. Nanoparticles were assigned for their in vitro antibacterial activity against Escherichia coli, Enterobacter aerogenes, Salmonella typhimurium, Staphylococcus cohnii, and Bacillus niacini. The evaluation of the growth of Yarrowia lipolytica on the recovered olive mill wastewater after removal of polyphenols yielded 3.2 g/L of the Yarrowia biomass in 72 h without nutriment additions, providing an important decrease of chemical oxygen demand (73 %).

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Section: Resultsmentioning

confidence: 63%

“…71 -1176. [38] The peak at the range of 40.49°corresponds to (101) of the hexagonal Mg(OH) 2 crystalline structure (JCPDS No. 35 -821).…”

Section: Xrd Pattern Of Mgo Npsmentioning

confidence: 99%

Dual Valorization of Olive Mill Wastewater by Bio‐Nanosynthesis of Magnesium Oxide and Yarrowia lipolytica Biomass Production

Hamimed

Jebli

Sellami

et al. 2020

Chemistry & Biodiversity

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“…Shahzadi team reported a convenient and efficient new cross-linking method for chitosan-cellulose with ZnO-NPs using triethylorthoformate (TEOF) as a cross-linking agent first time [22]. Indeed, the development of new cross-linkers is highly demanding to achieve the biomaterials with of desired biodegradability and capability of handling properties [23].…”

Section: Supplementary Informationmentioning

confidence: 99%

“…Chitosan encapsulated ZnO-NPs were prepared following the method reported by Shahzadi et al [22,23]. Initially, the chitosan solution was prepared by dissolving approximately 1.2 g of chitosan in 48.00 mL of 1% acetic acid solution at room temperature for 2 h. Similarly, approximately 1.2 g of cellulose was prepared by dissolving in 12.0 mL of 1% acetic acid maintaining the temperature at 80 °C.…”

Section: Preparation Of Chitosan Encapsulated Zno Nanoparticlesmentioning

confidence: 99%

Microencapsulation of biosynthesized zinc oxide nanoparticles (ZnO-NPs) using Plumeria leaf extract and kinetic studies in the release of ZnO-NPs from microcapsules

2021

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Biosynthesis using plant extract is known as one of the potential techniques to synthesize different zinc oxide nanoparticles (ZnO-NPs) in different size ranges. ZnO-NPs were synthesized using Plumeria leaf extract with laboratory chemical reagent Zn(CH3COO)2 and followed by the micro-encapsulation of biosynthesized ZnO-NPs using chitosan and cellulose with TEOF as a cross-linker employing freeze gelation method. Both neat and encapsulated ZnO-NPs have been characterized by FT-IR, UV spectroscopy, XRD, and SEM techniques. The UV-spectroscopic analysis confirmed the characteristic band of ZnO-NPs at 356.0 nm, and FIIR showed the peaks at 544 cm−1 and 545 cm−1 corresponding to the Zn–O bond. Powder XRD pattern showed the wurtzite structure of ZnO and gave the calculated average crystallite size as of 27.23 nm. In the case of encapsulated ZnO-NPs, the UV–visible spectrum showed two strong absorption peaks at 232.5 nm, 242.5 nm, and a weak peak at 357 nm. A broad peak at 3333 cm−1 in FT-IR spectra is either due to N–H stretching in the amide group of chitosan or hydroxyl group in encapsulated ZnO-NPs. It was observed that chitosan loaded ZnO-NPs had higher entrapment efficiency (81.98%) at 15 mL of plant extract. The kinetic profile in the release of ZnO particles out from encapsulated ZnO-NPs was observed to follow four kinetic paths in 120 min at pH 1.2. The particle release followed the zero-order kinetic in the first 50 min and then followed by Hixson–Crowell kinetic in the next 50 min with two different rate constants, 2.6 × 10−3 min−1 and 13 × 10−3 min−1, before it backs to the zero-order kinetics. This study shows that ZnO nanoparticles can easily be biosynthesized and encapsulated for use in the pharmaceutical industry.

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“…Hence, with the hypothesis that nanoencapsulated magnesium oxide nanoparticles (MgO NPs) can avoid all these biochemical degradation of MgO and increase its bioavailability. Carried out the synthesis of MgO NPs using aqueous extract of C. gigantea and their nano-encapsulation into polymer polyvinylpyrrolidone (PVP) or Eudragit L [30]. Aqueous extract of C. gigantea leaves played a significant role in the formation and stabilization of MgO NPs.…”

Section: Magnesium Oxide Nanoparticlesmentioning

confidence: 99%

Calotropis gigantea assisted green synthesis of nanomaterials and their applications: a review

Patil

2020

Beni-Suef Univ J Basic Appl Sci

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Background: Nanotechnology has been receiving wonderful impetus in the current emerging technological era by opening a pool of scientific ideas to compete with the daily challenges of developing technology. So far, numerous properties and countless applications of nanomaterials have been explored which have been even proved to be based on characteristic shape, size, surface area and surface chemistry. Main content: By the time, several attempts have been made for green synthesis of nanomaterials, using plant extracts. Calotropis gigantiea (L.) R. Br is the plant belonging to Apocynaceae, have been screened and proved to possess various pharmacological activities, due to different polar phytochemicals like flavonoids, lignans and terpenoids. This review focus on phytochemicals so far reported from different parts of the plant; pharmacological activities exhibited; green synthesis of nanomaterials, particularly metallic nanoparticles green synthesised by facilitating reaction of metallic ion donor molecule/salt and aqueous extract of leaves or flowers of C. gigantiea and their biological or non-biological applications. The use of C. gigantea in the fabrication of nanomaterials is an ecofriendly and safe approach. Secondary metabolites present act as a stabilizing agent for nanomaterials. Cadmium sulphide, titanium dioxide, nickel and nickel oxide nanoparticles synthesised using C. gigantea exerted better antimicrobial action, compared to extracts. Nanoencapsulated magnesium oxide nanoparticles avoided biochemical degradation of MgO; increase its bioavailability and proved beneficial in type II diabetes mellitus. Cupric oxide nanoparticles got applied in dye-sensitised solar cell. Silver nanoparticles showed better cytotoxicity in HeLa cells. Biomaterial-supported zero-valent iron and stannic oxide nanoparticles proved to have utilities in water purification. Green synthesised Eu 3+ doped Y 2 SiO 5 nanophosphors had significant chromaticity coordinates and average correlated colour temperature, hence find application in displays. Conclusion: Variety of nanomaterials including nanoparticles and nanophophors could successfully be biosynthesised using Calotropis gigantean extract or its latex. These green synthesised nanomaterials have several applications in the healthcare system and technology.

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Plant mediated green synthesis and nanoencapsulation of MgO nanoparticle from Calotropis gigantea: Characterisation and kinetic release studies

Cited by 20 publications

References 33 publications

Dual Valorization of Olive Mill Wastewater by Bio‐Nanosynthesis of Magnesium Oxide and Yarrowia lipolytica Biomass Production

Dual Valorization of Olive Mill Wastewater by Bio‐Nanosynthesis of Magnesium Oxide and Yarrowia lipolytica Biomass Production

Microencapsulation of biosynthesized zinc oxide nanoparticles (ZnO-NPs) using Plumeria leaf extract and kinetic studies in the release of ZnO-NPs from microcapsules

Calotropis gigantea assisted green synthesis of nanomaterials and their applications: a review

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