ABSTRACT Clinical treatment of hepatocellular carcinoma (HCC) is notoriously tricky because radiofrequency ablation (RFA) might encourage metastasis of remaining HCC. . The therapeutic efficacy of arsenic (A) and promising anticancer drug gemcitabine (G)-loaded zeolitic imidazolate framework-8 nanocomposites (AG@ZIF-8 NCs) on tumour remnants wasinvestigated. Results demonstrated that RFA significantly increased proliferation, induced metastasis, and triggered angiogenesis in recurrent tumours. We show that significant angiogenesis following RFA can increase the enhanced permeability and retention (EPR) effects and emphasize ZIF-8 carriers in recurrent tumours. e effectively fabricated biocompatible AG@ZIF-8 NCs. And they were superior to free gemcitabine in inhibiting cell proliferations, inducing apoptosis, blocking cell invasion and migration, and reversing in vitro EMT following sublethal heat treatment. In addition, AG@ZIF-8 NCs showed significantly improved therapeutic efficiency by reducing residual tumour development and in vivo metastasis compared to free gemcitabine. This study establishes a new standard for managing HCC that persists after RFA.
{"title":"Synergic fabrication of arsenic and anticancer drug-loaded ZIF-8 nanocomposites for improved radiofrequency ablation of liver metastasis cancer therapy","authors":"Dongwen Rong, Junmei Jia, Haile Qiu, Yanyan Liu, Chenan Liu, Xiaoyuan Wei","doi":"10.1080/10667857.2023.2243582","DOIUrl":"https://doi.org/10.1080/10667857.2023.2243582","url":null,"abstract":"ABSTRACT Clinical treatment of hepatocellular carcinoma (HCC) is notoriously tricky because radiofrequency ablation (RFA) might encourage metastasis of remaining HCC. . The therapeutic efficacy of arsenic (A) and promising anticancer drug gemcitabine (G)-loaded zeolitic imidazolate framework-8 nanocomposites (AG@ZIF-8 NCs) on tumour remnants wasinvestigated. Results demonstrated that RFA significantly increased proliferation, induced metastasis, and triggered angiogenesis in recurrent tumours. We show that significant angiogenesis following RFA can increase the enhanced permeability and retention (EPR) effects and emphasize ZIF-8 carriers in recurrent tumours. e effectively fabricated biocompatible AG@ZIF-8 NCs. And they were superior to free gemcitabine in inhibiting cell proliferations, inducing apoptosis, blocking cell invasion and migration, and reversing in vitro EMT following sublethal heat treatment. In addition, AG@ZIF-8 NCs showed significantly improved therapeutic efficiency by reducing residual tumour development and in vivo metastasis compared to free gemcitabine. This study establishes a new standard for managing HCC that persists after RFA.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"12 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134910402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1080/10667857.2023.2271305
Yuran Fan, Jian Shuai, Xin Su, Yalei Wang, Xiaojie Li, Yuntao Li, Xueda Li
ABSTRACT In order to achieve in-service safety evaluation of girth weld, property prediction of X80 self-shielded flux-cored girth weld metal based on strain ageing kinetics was conducted. Strength increment (ΔY) and toughness reduction (ΔCVN) relationship was obtained through tensile and Charpy impact test using specimens before and after strain ageing. 1% prestrain was conducted and then aged at different conditions (150°C/100°C for 1–6 h, 80°C/50°C for 1–120 days). Strain ageing kinetics was investigated based on experiment results, and diffusion activation energy (Q) was calculated as 88.1 kJ/mol. The correlation equation of ageing temperature and period was obtained: , T 1
{"title":"In-service property prediction of X80 self-shielded flux-cored (FCAW) girth weld metal based on strain ageing kinetics","authors":"Yuran Fan, Jian Shuai, Xin Su, Yalei Wang, Xiaojie Li, Yuntao Li, Xueda Li","doi":"10.1080/10667857.2023.2271305","DOIUrl":"https://doi.org/10.1080/10667857.2023.2271305","url":null,"abstract":"ABSTRACT In order to achieve in-service safety evaluation of girth weld, property prediction of X80 self-shielded flux-cored girth weld metal based on strain ageing kinetics was conducted. Strength increment (ΔY) and toughness reduction (ΔCVN) relationship was obtained through tensile and Charpy impact test using specimens before and after strain ageing. 1% prestrain was conducted and then aged at different conditions (150°C/100°C for 1–6 h, 80°C/50°C for 1–120 days). Strain ageing kinetics was investigated based on experiment results, and diffusion activation energy (Q) was calculated as 88.1 kJ/mol. The correlation equation of ageing temperature and period was obtained: , T 1<T 2 <423 K. It is predicted that, since occurrence of 1% prestrain, toughness of girth weld metal would drop down to <80 J after 3.9 years service in the present case, and its service safety should be reconsidered. Other prediction should be based on experimental results of specific consumable and welding parameters.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134909486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1080/10667857.2023.2269358
Mettilda Dhanislas, Shobana Sampath, Mary Shamya, Jerrine Joseph, Madhavan Yasasve, Mohammad Z. Ahmed, Ali S. Alqahtani, Shadab Kazmi, Perumal Asaithambi, Arumugam Suresh
The lack of a viable vaccine and the emergence of novel Mycobacterium tuberculosis (MTB) strains that are particularly resistant to treatments, presage a complicated future situation. Biosynthesized nanomaterials are currently proving to be a viable antibacterial therapeutic option, including for MTB infection treatment. The goal of this work is to synthesize silver nanoparticles (AgNPs) from Syzygium aromaticum seeds and investigate their antimicrobial, anti-tubercular, and cytotoxic properties using zebrafish embryos and Artemia salina. The UV spectrophotometer, SEM-EDAX, TEM and FTIR measurements were used to characterize the AgNPs. Antibacterial activity was performed against S. aureus, P. aeruginosa, E. coli and K. pneumoniae and exhibited potential inhibitory activity towards the bacterial cultures. The MABA assay was used to investigate the anti-mycobacterial activity, and the AgNPs showed the highest percentage of inhibition in both test concentrations (250 and 500 µg/ml).
{"title":"Green synthesis of biofabricated silver nanoparticles from <i>Syzygium aromaticum</i> seeds: spectral characterization and evaluation of its anti-mycobacterial activity, cytotoxicity assessment on zebrafish embryo and <i>Artemia salina</i>","authors":"Mettilda Dhanislas, Shobana Sampath, Mary Shamya, Jerrine Joseph, Madhavan Yasasve, Mohammad Z. Ahmed, Ali S. Alqahtani, Shadab Kazmi, Perumal Asaithambi, Arumugam Suresh","doi":"10.1080/10667857.2023.2269358","DOIUrl":"https://doi.org/10.1080/10667857.2023.2269358","url":null,"abstract":"The lack of a viable vaccine and the emergence of novel Mycobacterium tuberculosis (MTB) strains that are particularly resistant to treatments, presage a complicated future situation. Biosynthesized nanomaterials are currently proving to be a viable antibacterial therapeutic option, including for MTB infection treatment. The goal of this work is to synthesize silver nanoparticles (AgNPs) from Syzygium aromaticum seeds and investigate their antimicrobial, anti-tubercular, and cytotoxic properties using zebrafish embryos and Artemia salina. The UV spectrophotometer, SEM-EDAX, TEM and FTIR measurements were used to characterize the AgNPs. Antibacterial activity was performed against S. aureus, P. aeruginosa, E. coli and K. pneumoniae and exhibited potential inhibitory activity towards the bacterial cultures. The MABA assay was used to investigate the anti-mycobacterial activity, and the AgNPs showed the highest percentage of inhibition in both test concentrations (250 and 500 µg/ml).","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"R-27 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135366658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1080/10667857.2023.2270865
L.L. Wei, B.K. Pan, Y.G. Wang, B. Li, X.S. Jia
The pursuit of low-cost superalloys with excellent creep property is of great importance for practical engineering application. In this study, the creep performance, microstructure evolution and deformation mechanism of a low-cost Fe-Ni-based superalloy under the condition of 750°C/130 MPa and 700°C/200 MPa were investigated. The creep rupture life reached 14,715 h and 12,716 h, respectively, under the aforementioned conditions. After long-term creep, carbides and γ′ particles (Ni3(Al,Ti)) with spherical shape grew gradually due to the Ostwald ripening. Abnormal coarse needle-like γ′ phase presented at grain boundaries and grew along preferred orientation under the synergy effect of grain boundary migration, stress, and diffusion. Influence of precipitate-free zones, carbides, and coincidence site lattice (CSL) boundary on the creep properties were discussed. The creep deformation mechanism of the Fe-Ni-based superalloy were dominated by dislocations slip. Dislocations moved via by-passing the γ′ phase and formed dislocation bows around the precipitates.
{"title":"Microstructure evolution and creep-rupture behaviour of a low-cost Fe-Ni-based superalloy","authors":"L.L. Wei, B.K. Pan, Y.G. Wang, B. Li, X.S. Jia","doi":"10.1080/10667857.2023.2270865","DOIUrl":"https://doi.org/10.1080/10667857.2023.2270865","url":null,"abstract":"The pursuit of low-cost superalloys with excellent creep property is of great importance for practical engineering application. In this study, the creep performance, microstructure evolution and deformation mechanism of a low-cost Fe-Ni-based superalloy under the condition of 750°C/130 MPa and 700°C/200 MPa were investigated. The creep rupture life reached 14,715 h and 12,716 h, respectively, under the aforementioned conditions. After long-term creep, carbides and γ′ particles (Ni3(Al,Ti)) with spherical shape grew gradually due to the Ostwald ripening. Abnormal coarse needle-like γ′ phase presented at grain boundaries and grew along preferred orientation under the synergy effect of grain boundary migration, stress, and diffusion. Influence of precipitate-free zones, carbides, and coincidence site lattice (CSL) boundary on the creep properties were discussed. The creep deformation mechanism of the Fe-Ni-based superalloy were dominated by dislocations slip. Dislocations moved via by-passing the γ′ phase and formed dislocation bows around the precipitates.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135366928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1080/10667857.2023.2262131
Yang Li, Dongyuan Xu
Recently, sports monitoring sensors based on flexible wearable technology have attracted much attention. Here, we reported a P(VDF-co-HFP)/MXene-based triboelectric nanogenerator (PM-TENG) to harvest bio-mechanical energy. The introduction of MXene can significantly improve the dielectric constant of P(VDF-co-HFP), thereby achieving higher electron harvesting ability. The PM-TENG can obtain the maximum instantaneous power of 1.68 mW contacted with a resistance of 4 MΩ. Furthermore, the PM-TENG can be also integrated inside the mask to monitor changes in respiratory status before and after basketball exercise. Meanwhile, the PM-TENG installed inside the shoes can be used to distinguish different gaits in basketball, which will be used to assist in basketball training. This flexible sport sensor demonstrates potential application value in basketball training assistance.
{"title":"A flexible triboelectric sensor based on P(VDF-co-HFP)/MXene for breath and posture monitoring in basketball motion","authors":"Yang Li, Dongyuan Xu","doi":"10.1080/10667857.2023.2262131","DOIUrl":"https://doi.org/10.1080/10667857.2023.2262131","url":null,"abstract":"Recently, sports monitoring sensors based on flexible wearable technology have attracted much attention. Here, we reported a P(VDF-co-HFP)/MXene-based triboelectric nanogenerator (PM-TENG) to harvest bio-mechanical energy. The introduction of MXene can significantly improve the dielectric constant of P(VDF-co-HFP), thereby achieving higher electron harvesting ability. The PM-TENG can obtain the maximum instantaneous power of 1.68 mW contacted with a resistance of 4 MΩ. Furthermore, the PM-TENG can be also integrated inside the mask to monitor changes in respiratory status before and after basketball exercise. Meanwhile, the PM-TENG installed inside the shoes can be used to distinguish different gaits in basketball, which will be used to assist in basketball training. This flexible sport sensor demonstrates potential application value in basketball training assistance.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"4 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":"135993478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-16DOI: 10.1080/10667857.2023.2264670
Li Fangpo, Li Ning, Ren Xiaojian, Qiao Song, Lu Caihong, Wang Jianjun, Xu Yang, Wang Bin
In this study, the thermal deformation behaviour of a high strength offshore steel at different temperatures and rates was investigated through thermal compression experiments.An Arrhenius constitutive model and a back propagation artificial neural network (BP-ANN) were established to address more complex deformation characteristics. The performances of both models were was evaluated using standard statistical parameters such as the correlation coefficient (R) and average absolute relative error (AARE). The results showed that both models can accurately predict the rheological stresses generated during deformation.The BP-ANN outperforms the Arrhenius equation model with correlation coefficients of fit greater than 99.9% and less than 0.8% relative error. At a strain rate of 0.01 s−1 and 10 s−1, the accuracy of the ANN decreases slightly due to the fact that it exceeds the strain rate range of the training set, as compared to the Arrhenius constitutive equations as these are more accurately predicted.
{"title":"Arrhenius constitutive equation and artificial neural network model of flow stress in hot deformation of offshore steel with high strength and toughness","authors":"Li Fangpo, Li Ning, Ren Xiaojian, Qiao Song, Lu Caihong, Wang Jianjun, Xu Yang, Wang Bin","doi":"10.1080/10667857.2023.2264670","DOIUrl":"https://doi.org/10.1080/10667857.2023.2264670","url":null,"abstract":"In this study, the thermal deformation behaviour of a high strength offshore steel at different temperatures and rates was investigated through thermal compression experiments.An Arrhenius constitutive model and a back propagation artificial neural network (BP-ANN) were established to address more complex deformation characteristics. The performances of both models were was evaluated using standard statistical parameters such as the correlation coefficient (R) and average absolute relative error (AARE). The results showed that both models can accurately predict the rheological stresses generated during deformation.The BP-ANN outperforms the Arrhenius equation model with correlation coefficients of fit greater than 99.9% and less than 0.8% relative error. At a strain rate of 0.01 s−1 and 10 s−1, the accuracy of the ANN decreases slightly due to the fact that it exceeds the strain rate range of the training set, as compared to the Arrhenius constitutive equations as these are more accurately predicted.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"71 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136079938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-16DOI: 10.1080/10667857.2023.2254613
Shuai Zhang, Hailin Yang, Jianghua Li
Recently, research about the intelligent sports equipment based on triboelectric sensor for athlete posture monitoring has made progress. However, the exploration of new triboelectric materials remains an important challenge to be faced. Hence, we ingeniously design a polydimethylsiloxane (PDMS)/silanized graphite oxide (SGO)-based triboelectric nanogenerator (PS-TENG) for running posture and physical health monitoring. The introduction of SGO has improved the electron capture capability of PDMS, thereby achieving high output of PS-TENG. From the results, under an 60 MΩ resistance, the power density of PS-TENG reaches a peak of 1780 mW·m−2. Furthermore, athletes undergo various postures during the running process, so monitoring special postures is very meaningful, such as jogging, long jump, walking, etc. Especially, according to the self-charging mechanism, PS-TENG can indirectly evaluate physical energy analysis during running by storing electrical energy in capacitors. This triboelectric sensor can assist in posture monitoring and physical fitness monitoring during running.
{"title":"The triboelectric sensor based on PDMS/SGO for human running posture and physical fitness health monitoring","authors":"Shuai Zhang, Hailin Yang, Jianghua Li","doi":"10.1080/10667857.2023.2254613","DOIUrl":"https://doi.org/10.1080/10667857.2023.2254613","url":null,"abstract":"Recently, research about the intelligent sports equipment based on triboelectric sensor for athlete posture monitoring has made progress. However, the exploration of new triboelectric materials remains an important challenge to be faced. Hence, we ingeniously design a polydimethylsiloxane (PDMS)/silanized graphite oxide (SGO)-based triboelectric nanogenerator (PS-TENG) for running posture and physical health monitoring. The introduction of SGO has improved the electron capture capability of PDMS, thereby achieving high output of PS-TENG. From the results, under an 60 MΩ resistance, the power density of PS-TENG reaches a peak of 1780 mW·m−2. Furthermore, athletes undergo various postures during the running process, so monitoring special postures is very meaningful, such as jogging, long jump, walking, etc. Especially, according to the self-charging mechanism, PS-TENG can indirectly evaluate physical energy analysis during running by storing electrical energy in capacitors. This triboelectric sensor can assist in posture monitoring and physical fitness monitoring during running.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136114382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-12DOI: 10.1080/10667857.2023.2254137
Manala Tabu Mbumba, Mina Guli, Muhammad Waleed Akram, Yujing Zhang, Yifan Yang
ABSTRACT The characteristics and performance of perovskites are adversely impacted by the presence of a Sn metal at high-temperature conditions. In this study, CASTEP analysis and density functional theory are used to examine the impact of 1-butyl-3-methylimidazolium bromine ionic liquid in enhancing the features of Pb-Sn halide perovskite alloys. According to the study’s findings, the ionic liquid device has better electronic, optical, mechanical, and thermodynamic properties than the control sample because it can anchor the MA cation through hydrogen bonding and can reduce the grain boundaries of the perovskite film, making it tolerable up to high temperatures above 80°C. In comparison to the control device, the ionic liquid perovskites’ photovoltaic characteristics were also improved. This research lays the way for the development of Pb-Sn alloys with enhanced characteristics that are likely to result in the development of stable and effective lead-free perovskite solar cells.
{"title":"Ionic liquid addition to the MAPb<sub>0.5</sub>Sn<sub>0.5</sub>I<sub>3</sub> perovskites: the properties and optoelectronic performance analysis using DFT calculations","authors":"Manala Tabu Mbumba, Mina Guli, Muhammad Waleed Akram, Yujing Zhang, Yifan Yang","doi":"10.1080/10667857.2023.2254137","DOIUrl":"https://doi.org/10.1080/10667857.2023.2254137","url":null,"abstract":"ABSTRACT The characteristics and performance of perovskites are adversely impacted by the presence of a Sn metal at high-temperature conditions. In this study, CASTEP analysis and density functional theory are used to examine the impact of 1-butyl-3-methylimidazolium bromine ionic liquid in enhancing the features of Pb-Sn halide perovskite alloys. According to the study’s findings, the ionic liquid device has better electronic, optical, mechanical, and thermodynamic properties than the control sample because it can anchor the MA cation through hydrogen bonding and can reduce the grain boundaries of the perovskite film, making it tolerable up to high temperatures above 80°C. In comparison to the control device, the ionic liquid perovskites’ photovoltaic characteristics were also improved. This research lays the way for the development of Pb-Sn alloys with enhanced characteristics that are likely to result in the development of stable and effective lead-free perovskite solar cells.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135878115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-03DOI: 10.1080/10667857.2023.2253646
Ashok Kumawat, S. Chattopadhyay, K. Misra
ABSTRACT We describe here the structural evolution and optical properties of co-doping of Eu-doped ZnO nanoparticles with lithium synthesized by the sol-gel process. The characterization was carried out via X-ray diffraction (XRD), Fourier transmission infrared (FTIR), UV-Vis spectroscopy, and photoluminescence (PL) techniques. XRD confirmed hexagonal wurtzite phase of ZnO nanoparticles with crystallite size in the range of 22–61 nm. The band gap calculated from UV-vis spectra was in the range of 3.30–3.26 eV for undoped and Li and Eu co-doped ZnO nanoparticles, respectively, while photoluminescence study indicated that Li in Eu-ZnO affected the PL emission intensity, which was attributed to defects present in the crystal lattice. The field emission scanning electron microscopy (FESEM) images revealed the diverse morphology containing, spherical, tri-, tetra-, penta- and hexagonal rod-like nanostructures.
{"title":"Significant impact of co-doping Eu-doped ZnO nanoparticles with Li on structural–optical properties relationship","authors":"Ashok Kumawat, S. Chattopadhyay, K. Misra","doi":"10.1080/10667857.2023.2253646","DOIUrl":"https://doi.org/10.1080/10667857.2023.2253646","url":null,"abstract":"ABSTRACT We describe here the structural evolution and optical properties of co-doping of Eu-doped ZnO nanoparticles with lithium synthesized by the sol-gel process. The characterization was carried out via X-ray diffraction (XRD), Fourier transmission infrared (FTIR), UV-Vis spectroscopy, and photoluminescence (PL) techniques. XRD confirmed hexagonal wurtzite phase of ZnO nanoparticles with crystallite size in the range of 22–61 nm. The band gap calculated from UV-vis spectra was in the range of 3.30–3.26 eV for undoped and Li and Eu co-doped ZnO nanoparticles, respectively, while photoluminescence study indicated that Li in Eu-ZnO affected the PL emission intensity, which was attributed to defects present in the crystal lattice. The field emission scanning electron microscopy (FESEM) images revealed the diverse morphology containing, spherical, tri-, tetra-, penta- and hexagonal rod-like nanostructures.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"49 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82728572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.1080/10667857.2023.2242732
D. K. Shanmugam, S. C. Anitha, Vedhapriya Souresh, Yasasve Madhavan, Shobana Sampath, Divyambika Catakapatri Venugopal, M. Saravanan
ABSTRACT Bio-artificial organs, commonly referred to as bionic organs, are artificial structures that perform the same functions as natural organs. In regenerative medicine, damaged organs are repaired using biological components including growth factors and stem cells. The advancement of tissue engineering, which aims to harness the inherent regenerative potential of human body organs to rebuild normal biological function, has benefited greatly from the use of biomaterials. The rapidly expanding field of regenerative medicine has brought the usage of biomaterials and their functions in the production of new tissue. Organs-on-chips are seen as a concept performer in tissue engineering with significant potential for future ‘clinical trials on a chip’ and a step towards developing customized medicine. With the advancement of 3D printing technology, the manufacturing constraints of biomedical devices have been solved using cutting-edge biomimetic structures. This review covers the areas on bionic organs such as organ on a chip with tissue engineering, bio grafting, 3D bio-printing and the stem cell techniques that are employed in regenerative medicine.
{"title":"Current advancements in the development of bionic organs using regenerative medicine and 3D tissue engineering","authors":"D. K. Shanmugam, S. C. Anitha, Vedhapriya Souresh, Yasasve Madhavan, Shobana Sampath, Divyambika Catakapatri Venugopal, M. Saravanan","doi":"10.1080/10667857.2023.2242732","DOIUrl":"https://doi.org/10.1080/10667857.2023.2242732","url":null,"abstract":"ABSTRACT Bio-artificial organs, commonly referred to as bionic organs, are artificial structures that perform the same functions as natural organs. In regenerative medicine, damaged organs are repaired using biological components including growth factors and stem cells. The advancement of tissue engineering, which aims to harness the inherent regenerative potential of human body organs to rebuild normal biological function, has benefited greatly from the use of biomaterials. The rapidly expanding field of regenerative medicine has brought the usage of biomaterials and their functions in the production of new tissue. Organs-on-chips are seen as a concept performer in tissue engineering with significant potential for future ‘clinical trials on a chip’ and a step towards developing customized medicine. With the advancement of 3D printing technology, the manufacturing constraints of biomedical devices have been solved using cutting-edge biomimetic structures. This review covers the areas on bionic organs such as organ on a chip with tissue engineering, bio grafting, 3D bio-printing and the stem cell techniques that are employed in regenerative medicine.","PeriodicalId":18270,"journal":{"name":"Materials Technology","volume":"20 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79219531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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