Pub Date : 2023-10-23DOI: 10.1088/2043-6262/ad002b
Shivani Gupta, Himanshu Narayan, Rakesh K Jain
The photocatalytic activity of nanosized composite materials based on some common metal-oxides has been reviewed in the context of their potential application in the treatment of wastewater. A large volume of published data has been systematically analysed to understand the process of photocatalytic degradation under various combinations of the material, dye and source of excitation. The quantities taken into consideration for the analysis are the average particle size, apparent rate constant ( kobs ), and maximum percent degradation achieved. Semiconducting titanium dioxide (TiO2), zinc oxide (ZnO) and copper oxide (CuO) were identified as the three best photocatalysts that can be used after some meticulous modifications, in the treatment of wastewater under visible light irradiation. It was also concluded that the best performance can be obtained with photocatalyst nanoparticles (NPs) of average size in the range of 20 to 70 nm. Among the photocatalysts reviewed, the best degradation was produced by bismuth-sulphur co-doped TiO2 NPs of around 7 nm average particle size. With a rate constant as high as 6.08 × 10−2 min−1, this material produced nearly 100% degradation of Indigo Carmine within 40 min under visible light. The ZnO NPs of 40–70 nm average size degraded nearly 99% of Malachite green dye under ultraviolet (UV) irradiations in just 40 min with a very high rate constant of 11.10 × 10−2 min−1. CuO NPs, synthesised through green methods, produced nearly 95% degradation of Methylene blue (MB) in 2 h, with a rate constant of 2.62 × 10−2 min−1 under solar irradiation.
{"title":"A review of some metal-oxide based nanocomposites for photocatalytic treatment of wastewater","authors":"Shivani Gupta, Himanshu Narayan, Rakesh K Jain","doi":"10.1088/2043-6262/ad002b","DOIUrl":"https://doi.org/10.1088/2043-6262/ad002b","url":null,"abstract":"The photocatalytic activity of nanosized composite materials based on some common metal-oxides has been reviewed in the context of their potential application in the treatment of wastewater. A large volume of published data has been systematically analysed to understand the process of photocatalytic degradation under various combinations of the material, dye and source of excitation. The quantities taken into consideration for the analysis are the average particle size, apparent rate constant ( kobs ), and maximum percent degradation achieved. Semiconducting titanium dioxide (TiO2), zinc oxide (ZnO) and copper oxide (CuO) were identified as the three best photocatalysts that can be used after some meticulous modifications, in the treatment of wastewater under visible light irradiation. It was also concluded that the best performance can be obtained with photocatalyst nanoparticles (NPs) of average size in the range of 20 to 70 nm. Among the photocatalysts reviewed, the best degradation was produced by bismuth-sulphur co-doped TiO2 NPs of around 7 nm average particle size. With a rate constant as high as 6.08 × 10−2 min−1, this material produced nearly 100% degradation of Indigo Carmine within 40 min under visible light. The ZnO NPs of 40–70 nm average size degraded nearly 99% of Malachite green dye under ultraviolet (UV) irradiations in just 40 min with a very high rate constant of 11.10 × 10−2 min−1. CuO NPs, synthesised through green methods, produced nearly 95% degradation of Methylene blue (MB) in 2 h, with a rate constant of 2.62 × 10−2 min−1 under solar irradiation.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"30 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135366480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-19DOI: 10.1088/2043-6262/ad010a
Van Vien Nguyen, Thu Hien Hoang Nguyen, Canh Minh Thang Nguyen, Hoang Long Ngo, Thanh Tung Nguyen, Viet Hai Le, Thai Hoang Nguyen
Abstract In this study, gold nanoelectrodes were fabricated via electrical deposition of gold nanoparticles (NPs) onto FTO electrodes using cyclic voltammetry (CV) in 1 M H 3 PO 4 solution at a scan rate of 100 mV.s −1 in the potential range of 0–1.4 V and −0.5–0.6 V. The fabricated FTO/AuNP electrodes were characterised by UV–vis, scanning electron microscope, energy-dispersive X-ray spectroscopy, as well as CV and linear sweep voltammetry; the presence of gold on the electrode surface and its electrochemical properties were confirmed towards hydroquinone. The electrodes with the best electrochemical properties were chosen for arsenic(III) determination. The fabricated FTO/AuNP electrodes in the potential range of 0–1.4 V exhibited the high sensitivity with limit of detection (LOD) of 3.04 ppb and limit of quantitation (LOQ) of 9.23 ppb, whereas the FTO/AuNP electrode fabricated in the potential range of −0.5 V–0.6 V displayed the enhancement sensitivity with LOD = 0.623 ppb and LOQ = 1.89 ppb.
{"title":"A fast fabrication technique of FTO/AuNPs electrochemical electrodes for on-site arsenic (III) detection","authors":"Van Vien Nguyen, Thu Hien Hoang Nguyen, Canh Minh Thang Nguyen, Hoang Long Ngo, Thanh Tung Nguyen, Viet Hai Le, Thai Hoang Nguyen","doi":"10.1088/2043-6262/ad010a","DOIUrl":"https://doi.org/10.1088/2043-6262/ad010a","url":null,"abstract":"Abstract In this study, gold nanoelectrodes were fabricated via electrical deposition of gold nanoparticles (NPs) onto FTO electrodes using cyclic voltammetry (CV) in 1 M H 3 PO 4 solution at a scan rate of 100 mV.s −1 in the potential range of 0–1.4 V and −0.5–0.6 V. The fabricated FTO/AuNP electrodes were characterised by UV–vis, scanning electron microscope, energy-dispersive X-ray spectroscopy, as well as CV and linear sweep voltammetry; the presence of gold on the electrode surface and its electrochemical properties were confirmed towards hydroquinone. The electrodes with the best electrochemical properties were chosen for arsenic(III) determination. The fabricated FTO/AuNP electrodes in the potential range of 0–1.4 V exhibited the high sensitivity with limit of detection (LOD) of 3.04 ppb and limit of quantitation (LOQ) of 9.23 ppb, whereas the FTO/AuNP electrode fabricated in the potential range of −0.5 V–0.6 V displayed the enhancement sensitivity with LOD = 0.623 ppb and LOQ = 1.89 ppb.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1088/2043-6262/ad0106
Marwa S Alwazny, Raid A Ismail, Evan T Salim
Abstract The use of LiNbO 3 nanoparticles in nonlinear applications is attractive and promising. The particle size and morphology of LiNbO 3 are the key parameters affecting their application. In this study, spherical nanoparticles of lithium niobate were synthesised by nanosecond Nd:YAG laser ablation in water. The polycrystalline, rhombohedral structure of the synthesised LiNbO 3 nanoparticles with x-ray diffraction experiments was verified. The bandgap energy of colloidal LiNbO 3 nanoparticles varied between 4.25 and 4.9 eV based on the laser fluence, according to the optical characteristics. The photoluminescence (PL) reveals that the emission peaks are centered at 293, 300, 305, and 309 nm for samples prepared at 1.3, 1.6, 2.0, and 2.2 J cm −2 /pulse, respectively. The transmission electron microscope investigation confirmed the formation of spherical nanoparticles with an average size ranging from 18 to 34 nm. Raman studies on nanoparticles synthesised at various laser fluences are being conducted.
{"title":"Preparation of LiNbO<sub>3</sub> nanoparticles by green synthesis laser ablation in water","authors":"Marwa S Alwazny, Raid A Ismail, Evan T Salim","doi":"10.1088/2043-6262/ad0106","DOIUrl":"https://doi.org/10.1088/2043-6262/ad0106","url":null,"abstract":"Abstract The use of LiNbO 3 nanoparticles in nonlinear applications is attractive and promising. The particle size and morphology of LiNbO 3 are the key parameters affecting their application. In this study, spherical nanoparticles of lithium niobate were synthesised by nanosecond Nd:YAG laser ablation in water. The polycrystalline, rhombohedral structure of the synthesised LiNbO 3 nanoparticles with x-ray diffraction experiments was verified. The bandgap energy of colloidal LiNbO 3 nanoparticles varied between 4.25 and 4.9 eV based on the laser fluence, according to the optical characteristics. The photoluminescence (PL) reveals that the emission peaks are centered at 293, 300, 305, and 309 nm for samples prepared at 1.3, 1.6, 2.0, and 2.2 J cm −2 /pulse, respectively. The transmission electron microscope investigation confirmed the formation of spherical nanoparticles with an average size ranging from 18 to 34 nm. Raman studies on nanoparticles synthesised at various laser fluences are being conducted.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135884772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1088/2043-6262/ad010c
Hadeel J Imran, Kadhim A Aadim, Kadhim A Hubeatir
Abstract The excessive use of antibiotics led to the appearance of many strains of resistant bacteria, so it became necessary to use new antibacterial techniques. The aim of this work is the synthesis of novel core–shell NPs (NiO@ZnO) for antibacterial applications. A novel NiO@ZnO core–shell nanomaterial with a nanosize and uniform shape has been synthesised using the two-step pulsed laser ablation in liquid (PLAL) method. The first step is the laser ablation of the nickel target and the production of NiO NPs (core) colloidal, followed by the second step, the ablation of ZnO (shell) inside NiO NPs colloidal. The transmission electron microscopy results approve the formation of NiO@ZnO core–shell NPs with an average particle size of 54.4 nm for NiO particles and 60.7 nm for the NiO@ZnO core–shell. The antibacterial activity was examined against the pathogenic bacterial strains E. coli and S. aureus . We found that in the case of NiO, the inhibition rates were 62.4 and 59.2% for E. coli and S. aureus , respectively. While with NiO@ZnO NPs, this result was improved to 74.8% for E. coli and 71.2% for S. aureus . So, it was found that using the core–shell NPs increased the antibacterial activity of NPs, and the use of NiO NPs and core approved their effect as antibacterial agents due to their special properties. This behaviour is primarily because of the accumulation of the NiO@ZnO NPs on the surface of the bacteria, which leads to cytotoxic bacteria and a relatively increased ZnO, causing cell death. Furthermore, the use of a NiO@ZnO core–shell material will inhibit the bacteria from nourishing themselves on the culture medium. Therefore, core shelling metal oxides with another metal oxide or other material improves their antibacterial activity compared with using them alone.
{"title":"Two–step pulsed laser ablation for preparation NiO@ZnO core-shell nanostructure and evaluation of their antibacterial activity","authors":"Hadeel J Imran, Kadhim A Aadim, Kadhim A Hubeatir","doi":"10.1088/2043-6262/ad010c","DOIUrl":"https://doi.org/10.1088/2043-6262/ad010c","url":null,"abstract":"Abstract The excessive use of antibiotics led to the appearance of many strains of resistant bacteria, so it became necessary to use new antibacterial techniques. The aim of this work is the synthesis of novel core–shell NPs (NiO@ZnO) for antibacterial applications. A novel NiO@ZnO core–shell nanomaterial with a nanosize and uniform shape has been synthesised using the two-step pulsed laser ablation in liquid (PLAL) method. The first step is the laser ablation of the nickel target and the production of NiO NPs (core) colloidal, followed by the second step, the ablation of ZnO (shell) inside NiO NPs colloidal. The transmission electron microscopy results approve the formation of NiO@ZnO core–shell NPs with an average particle size of 54.4 nm for NiO particles and 60.7 nm for the NiO@ZnO core–shell. The antibacterial activity was examined against the pathogenic bacterial strains E. coli and S. aureus . We found that in the case of NiO, the inhibition rates were 62.4 and 59.2% for E. coli and S. aureus , respectively. While with NiO@ZnO NPs, this result was improved to 74.8% for E. coli and 71.2% for S. aureus . So, it was found that using the core–shell NPs increased the antibacterial activity of NPs, and the use of NiO NPs and core approved their effect as antibacterial agents due to their special properties. This behaviour is primarily because of the accumulation of the NiO@ZnO NPs on the surface of the bacteria, which leads to cytotoxic bacteria and a relatively increased ZnO, causing cell death. Furthermore, the use of a NiO@ZnO core–shell material will inhibit the bacteria from nourishing themselves on the culture medium. Therefore, core shelling metal oxides with another metal oxide or other material improves their antibacterial activity compared with using them alone.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"75 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135883173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1088/2043-6262/ad0109
Piu Das, Bapan Bairy, Sanjukta Ghosh, Raktim Ghosh, Somasri Dam, Avijit Ghorai, Moni Baskey Sen
Abstract The green synthetic approaches are the alternative methods for the preparation of various types of nanoparticles to keep sustainable evolution. A novel green synthesis of gold- reduced graphene oxide nanocomposites was conducted through simple heating method using Alstonia scholaris (A. scholaris) bark extract. There are several techniques that confirm the formation of the nanocomposites for synthesis of gold nanoparticles on reduced graphene oxide (RGO), such as X-ray diffraction (XRD), UV–visible spectroscopy (UV–vis) and Fourier transformed infrared spectroscopy (FT-IR). The size distributions of the gold nanoparticles (Au NPs) grown on RGO surface was measured using two different methods: particle distribution study and transmission electron microscopy (TEM) image. These two methods provided similar size distribution which is around 5–8 nm. Subsequently, the catalytic performance was evaluated by 4-nitro aniline (4-NA). The photocatalytic activities were investigated using different organic hazardous dyes, such as methylene blue (MB), methyl orange (MO) and the change of photocatalytic behaviour was shown by varying the catalyst amount and pH. The chemical oxygen demand (COD) analyses for complete removal of organic dye were carried out using the two nanocomposite samples. To perceive the effect on different bacterial strains, antibacterial and antiprotozoal studies have been carried out with this nanocomposite.
{"title":"Green synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field","authors":"Piu Das, Bapan Bairy, Sanjukta Ghosh, Raktim Ghosh, Somasri Dam, Avijit Ghorai, Moni Baskey Sen","doi":"10.1088/2043-6262/ad0109","DOIUrl":"https://doi.org/10.1088/2043-6262/ad0109","url":null,"abstract":"Abstract The green synthetic approaches are the alternative methods for the preparation of various types of nanoparticles to keep sustainable evolution. A novel green synthesis of gold- reduced graphene oxide nanocomposites was conducted through simple heating method using Alstonia scholaris (A. scholaris) bark extract. There are several techniques that confirm the formation of the nanocomposites for synthesis of gold nanoparticles on reduced graphene oxide (RGO), such as X-ray diffraction (XRD), UV–visible spectroscopy (UV–vis) and Fourier transformed infrared spectroscopy (FT-IR). The size distributions of the gold nanoparticles (Au NPs) grown on RGO surface was measured using two different methods: particle distribution study and transmission electron microscopy (TEM) image. These two methods provided similar size distribution which is around 5–8 nm. Subsequently, the catalytic performance was evaluated by 4-nitro aniline (4-NA). The photocatalytic activities were investigated using different organic hazardous dyes, such as methylene blue (MB), methyl orange (MO) and the change of photocatalytic behaviour was shown by varying the catalyst amount and pH. The chemical oxygen demand (COD) analyses for complete removal of organic dye were carried out using the two nanocomposite samples. To perceive the effect on different bacterial strains, antibacterial and antiprotozoal studies have been carried out with this nanocomposite.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135884771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1088/2043-6262/ad0107
N P Shabelskaya, A V Arzumanova, Yu A Gaidukova, S I Sulima, E V Vasileva, E A Yakovenko
Abstract The paper proposes a simple one-stage synthesis of ferrite/biochar composites based on oxide compounds of Ni x Co 1-x Fe 2 O 4 ( х = 0, 0.5, and 1). The obtained materials were characterised using x-ray diffraction patterns, Fourier transform infrared (FTIR) spectrometry, electron microscopy, Scherrer and Williamson-Hall methods. The high photocatalytic activity of the synthesised materials in the process of methyl orange oxidative degradation at hydrogen peroxide presence has been established. It is noted that the highest catalytic activity is exhibited by the composite material based on cobalt (II) ferrite and sunflower biochar: in their presence, it is possible to achieve 100% removal of the dye after 120 and 90 min, respectively. A possible mechanism of the dye decomposition process is discussed.
摘要:本文提出了一种简单的一步合成基于Ni x Co 1-x fe2o (x = 0,0.5和1)氧化物的铁氧体/生物炭复合材料的方法。采用x射线衍射图，傅里叶变换红外光谱(FTIR)，电子显微镜，Scherrer和Williamson-Hall方法对所得材料进行了表征。合成的材料在过氧化氢存在下对甲基橙氧化降解过程具有较高的光催化活性。值得注意的是，基于钴(II)铁氧体和向日葵生物炭的复合材料表现出最高的催化活性:在它们存在的情况下，分别在120分钟和90分钟后可以实现100%的染料去除。讨论了染料分解过程的可能机理。
{"title":"Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties","authors":"N P Shabelskaya, A V Arzumanova, Yu A Gaidukova, S I Sulima, E V Vasileva, E A Yakovenko","doi":"10.1088/2043-6262/ad0107","DOIUrl":"https://doi.org/10.1088/2043-6262/ad0107","url":null,"abstract":"Abstract The paper proposes a simple one-stage synthesis of ferrite/biochar composites based on oxide compounds of Ni x Co 1-x Fe 2 O 4 ( х = 0, 0.5, and 1). The obtained materials were characterised using x-ray diffraction patterns, Fourier transform infrared (FTIR) spectrometry, electron microscopy, Scherrer and Williamson-Hall methods. The high photocatalytic activity of the synthesised materials in the process of methyl orange oxidative degradation at hydrogen peroxide presence has been established. It is noted that the highest catalytic activity is exhibited by the composite material based on cobalt (II) ferrite and sunflower biochar: in their presence, it is possible to achieve 100% removal of the dye after 120 and 90 min, respectively. A possible mechanism of the dye decomposition process is discussed.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135992899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1088/2043-6262/ad002a
Abduladheem Turki Jalil, Mohanad Ali Abdulhadi, Lubna R Al-Ameer, Doaa Saadi Kareem, Muna S Merza, Rahman S Zabibah, Ibrahem Galib
Abstract Cancer is a major threat to human health, and it is still the leading cause of death from disease. Due to how quickly nanomedicine is developing, it is thought that nanoscale metal–organic frameworks (MOF) could be used in the treatment and biomedical imaging of many types of cancer. More and more researchers are interested in zeolite imidazole framework (ZIF)−8 because it has a high porosity, a large specific surface area, and reacts to changes in pH. Understanding the properties of nanomaterials and how tumour works requires a complex and thorough look at how ZIF-8 nanoparticles (NPs) are made, how they can be changed, and how drugs are loaded into them. We mostly looked at the research that came out in the last three years, summed up how their use in imaging and treating tumour has changed, and talked about the pros and cons of using ZIF-8 NPs for cancer theranostic now and in the future. As a MOF material with a lot of potentials, ZIF-8 is likely to be used in more therapeutic systems in the future and to continue to help with all parts of tumour therapy and diagnosis.
{"title":"Potential of nanotheranostic zeolitic imidazolate frameworks in cancer management","authors":"Abduladheem Turki Jalil, Mohanad Ali Abdulhadi, Lubna R Al-Ameer, Doaa Saadi Kareem, Muna S Merza, Rahman S Zabibah, Ibrahem Galib","doi":"10.1088/2043-6262/ad002a","DOIUrl":"https://doi.org/10.1088/2043-6262/ad002a","url":null,"abstract":"Abstract Cancer is a major threat to human health, and it is still the leading cause of death from disease. Due to how quickly nanomedicine is developing, it is thought that nanoscale metal–organic frameworks (MOF) could be used in the treatment and biomedical imaging of many types of cancer. More and more researchers are interested in zeolite imidazole framework (ZIF)−8 because it has a high porosity, a large specific surface area, and reacts to changes in pH. Understanding the properties of nanomaterials and how tumour works requires a complex and thorough look at how ZIF-8 nanoparticles (NPs) are made, how they can be changed, and how drugs are loaded into them. We mostly looked at the research that came out in the last three years, summed up how their use in imaging and treating tumour has changed, and talked about the pros and cons of using ZIF-8 NPs for cancer theranostic now and in the future. As a MOF material with a lot of potentials, ZIF-8 is likely to be used in more therapeutic systems in the future and to continue to help with all parts of tumour therapy and diagnosis.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-12DOI: 10.1088/2043-6262/acf2ef
Shrutika Chaudhary, Navneeta Bharadvaja
Abstract Nanoparticles are becoming integral components in every sector considering their unmatched properties with their counter bulk material. However, in the last couple of decades, several reports suggested metal nanoparticles are toxic to biological systems either directly or indirectly. Zinc oxide nanoparticles (ZnO NPs) possess excellent optical, electrical, food packaging properties, etc. Although, the use of chemically toxic reducing agents for the synthesis of ZnO NPs induces toxicity. Therefore, biogenic synthesis of ZnO NPs has been exploited using different sources such as plant leaves, stems, fungi algae, etc NPs synthesised via these methods are biodegradable, biocompatible, low toxic, and highly effective in different applications. Algae being widely available and easy to harvest becomes a suitable candidate for ZnO NPs synthesis. Algae mediated/phycosynthesis is a technique where algae accumulate zinc oxides and reduce them to zinc ions to form ZnO NPs. The ease of synthesis of ZnO NPs using this method produces NPs in abundant quantity and of variable sizes. Intracellular and extracellular syntheses are two mechanisms of phycosynthesis of ZnO NPs. These ZnO NPs have several beneficial properties like antimicrobial, anti-cancerous, antioxidant, larvicidal, antidiabetic, etc. Additionally, it has low scale-up cost, and low energy input. This article provides detailed information about the routes of phycosynthesis of ZnO NPs using different algal strains, properties, and their potential application in the biomedical field and environmental remediation.
{"title":"Recent developments in phycosynthesis of zinc oxide nanoparticles for biomedicine and environmental applications","authors":"Shrutika Chaudhary, Navneeta Bharadvaja","doi":"10.1088/2043-6262/acf2ef","DOIUrl":"https://doi.org/10.1088/2043-6262/acf2ef","url":null,"abstract":"Abstract Nanoparticles are becoming integral components in every sector considering their unmatched properties with their counter bulk material. However, in the last couple of decades, several reports suggested metal nanoparticles are toxic to biological systems either directly or indirectly. Zinc oxide nanoparticles (ZnO NPs) possess excellent optical, electrical, food packaging properties, etc. Although, the use of chemically toxic reducing agents for the synthesis of ZnO NPs induces toxicity. Therefore, biogenic synthesis of ZnO NPs has been exploited using different sources such as plant leaves, stems, fungi algae, etc NPs synthesised via these methods are biodegradable, biocompatible, low toxic, and highly effective in different applications. Algae being widely available and easy to harvest becomes a suitable candidate for ZnO NPs synthesis. Algae mediated/phycosynthesis is a technique where algae accumulate zinc oxides and reduce them to zinc ions to form ZnO NPs. The ease of synthesis of ZnO NPs using this method produces NPs in abundant quantity and of variable sizes. Intracellular and extracellular syntheses are two mechanisms of phycosynthesis of ZnO NPs. These ZnO NPs have several beneficial properties like antimicrobial, anti-cancerous, antioxidant, larvicidal, antidiabetic, etc. Additionally, it has low scale-up cost, and low energy input. This article provides detailed information about the routes of phycosynthesis of ZnO NPs using different algal strains, properties, and their potential application in the biomedical field and environmental remediation.","PeriodicalId":56371,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135969244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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