Journal of Science: Advanced Materials and Devices最新文献

{"title":"Ultrasound assisted green synthesis of silver nanoparticles stabilized by chitosan polymers: Investigation of its therapeutic application in diarrhea","authors":"Lin Wang ,&nbsp;Lei Qiao ,&nbsp;Yuzhi Liu ,&nbsp;Fengyue Li ,&nbsp;Attalla F. El-kott ,&nbsp;Mohammed A. AlShehri ,&nbsp;Kareem Morsy","doi":"10.1016/j.jsamd.2024.100759","DOIUrl":"https://doi.org/10.1016/j.jsamd.2024.100759","url":null,"abstract":"<div><p>The current investigation aims to study the bio route preparation of chitosan capped-silver nanoparticles using aqueous flower extract of the <em>Achillea ptarmica</em> plant. The biosynthesized silver nanoparticles/chitosan (Ag NPs@CHI) were characterized by various spectroscopic techniques. The creation of Ag nanoparticles over the chitosan was initially determined by the presence of a single broad peak at 545 nm that was recorded by the UV–Vis spectrum. The presence of poly-dispersity, spherical shape and nanosizes in the Ag NPs@CHI were verified by the TEM and SEM pictures. The purity and crystalline nature of the prepared Ag NPs@CHI were confirmed by XRD analysis. <em>In vivo</em>, Ag NPs@CHI decreased the inflammatory cells presence in the colon and ileum, lowered the levels of IL-17A, IL-1β, IL-6, and TNF-α, raised the levels of IL-10 and IL-4 in colon tissues, enhanced acetate and propionate production. The findings revealed that Ag NPs@CHI have the potential to boost intestinal structure restoration, decrease levels of inflammatory cytokines and enhance short-chain fatty acid (SCFA) levels. Our research demonstrated that Ag NPs@CHI can safeguard the intestinal barrier by upregulating the expression of Claudin-1 and Occludin. Furthermore, silver nanoparticles suppressed the MAPK signaling pathway to ameliorate the inflammatory condition. Following the completion of clinical trials, these novel nanoparticles could serve as a promising new treatment for diarrhea in humans.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100759"},"PeriodicalIF":6.7,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S246821792400090X/pdfft?md5=e19e0390d66f04094da6eca0a255b71a&pid=1-s2.0-S246821792400090X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141594078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of the microwave absorption properties of the SrFe12O19@Fe3O4@rGO composite material","authors":"Tran Thi Viet Nga ,&nbsp;Nguyen Thi Lan ,&nbsp;To Thanh Loan ,&nbsp;Tran Quang Dat","doi":"10.1016/j.jsamd.2024.100758","DOIUrl":"https://doi.org/10.1016/j.jsamd.2024.100758","url":null,"abstract":"<div><p>In this work, graphene oxide (GO) was prepared via the Hummers’ method, whereas SrFe₁₂O₁₉, SrFe₁₂O₁₉@Fe₃O₄, and SrFe₁₂O₁₉@Fe₃O₄@rGO were fabricated using the hydrothermal techniques. The samples' phase structure, surface morphology, magnetic properties, and electromagnetic wave absorption characteristics were studied and compared. Findings show that the Fe₃O₄ particles adhered to the surface of the SrFe₁₂O₁₉ hexagonal plates, and the combination of SrFe₁₂O₁₉@Fe₃O₄ foam flakes and two-dimensional graphene rGO could enhance the absorption electromagnetic wave performance. The composite SrFe₁₂O₁₉@Fe₃O₄@rGO sample exhibited an ideal impedance matching within the frequency <em>f</em> range of 11 GHz–12.4 GHz. The minimum reflection loss reached −62.3 dB at 12.2 GHz with a thickness of 2 mm. With a thickness of 2 mm, the effective absorption bandwidth obtained the value of −20 dB, covering a range of 9.3 GHz. The composite SrFe₁₂O₁₉@Fe₃O₄@rGO sample, which shows the highest performance both in reflectivity and bandwidth, can find potential application in microwave absorptions.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100758"},"PeriodicalIF":6.7,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000893/pdfft?md5=9721a26c61f0f94c1bab48ffca17ccf3&pid=1-s2.0-S2468217924000893-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141486008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver nanoparticles stabilized by chitosan-polyvinyl alcohol polymers mediated by Pistacia extract for treatment of functional dyspepsia and gastric cancer","authors":"Cui Jin ,&nbsp;Zhongxin Zhang ,&nbsp;Xiaopei Li","doi":"10.1016/j.jsamd.2024.100757","DOIUrl":"10.1016/j.jsamd.2024.100757","url":null,"abstract":"<div><p>The impact of the nanoparticles on the dyspepsia mice gut microbiota is evaluated through the utilization of the 16S rRNA technique. Various methods were employed to characterize the NPs. In the textile, culinary, paper, leather, and printing sectors, synthetic dyes are frequently employed as coloring agents. Because these dye molecules are harmful to both the environment and living things, it is difficult to remove them sustainably. Here, we have produced nanoparticles embedded in chitosan-polyvinyl alcohol hydrogel (CS-PVA) by using bark's <em>Pistacia</em> under ultrasonic irradiation. The reduction of Ag ⁺ ions into Ag⁰ NPs was detected by a visual change in the colors. UV–Vis analysis indicated that the characteristic SPR band appeared near ∼440–450 nm. UV/Vis, EDX-elemental mapping, SEM, TEM, ICP-OES, and XRD analysis were applied to characterize the Ag NPs/CS-PVA nanocomposite. The recent study focused on the cellular and molecular aspects. The MTT assay was conducted for 48 h to evaluate the anti-human gastric cancer and cytotoxicity efficacies of the treated cells with nanocomposite. The assessment was performed on normal (HUVEC) and gastric cancer cells, namely MKN45 and NCI–N87. The IC₅₀ values of nanocomposite against MKN45 and NCI–N87 were 180 and 151 μg/mL, respectively. The dose-dependent reduction in malignant gastric cell viability was observed in the nanocomposite presence. Furthermore, the nanocomposite induced cell apoptosis by 40–50%, leading to an increase in the expression of pro-apoptotic markers (Bax and cleaved caspase-8) and a decrease in the expression of the anti-apoptotic marker, Bcl-2. Furthermore, the nanocomposite showed inhibitory effects on colony formation. Our results indicate that the nanocomposite can increase p53 expression and decrease the expression of STAT3 in treated cells. This indicates that p53 and STAT3 play crucial roles in the biological effects induced by the extract in human gastric carcinoma cells. The data from the gut microbiome suggested that nanocomposites have the ability to control the rebalancing of homeostasis and microbiome composition by decreasing the levels of harmful bacteria, and at the same time, increasing the levels of beneficial bacteria. Following the introduction of nanocomposite, there was an observed rise in the levels of gastrointestinal hormones in the serum, including gastrin and motilin, while the levels of vasoactive intestinal peptide decreased. The application of nanocomposite led to an improvement in gastrointestinal movement, encompassing a rise in the rate of transit through the small intestine and the rate of gastric emptying. These findings offer that the Ag NPs/CS-PVA nanocomposite could be a promising anticancer treatment for functional dyspepsia and gastric cancer.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100757"},"PeriodicalIF":6.7,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000881/pdfft?md5=537d74af50bbd63b42139b5301429750&pid=1-s2.0-S2468217924000881-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141415104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of dimethylaluminum isopropoxide (DMAI) on the Al2O3 surface: A machine-learning potential study","authors":"Miso Kim,&nbsp;Sehee Kim,&nbsp;Bonggeun Shong","doi":"10.1016/j.jsamd.2024.100754","DOIUrl":"10.1016/j.jsamd.2024.100754","url":null,"abstract":"<div><p>Dimethylaluminum isopropoxide (DMAI) is attracting attention as an alternative precursor for atomic layer deposition (ALD) of aluminum oxide (Al₂O₃). However, the surface chemical reaction mechanisms of DMAI during ALD regarding its dimeric structure under vacuum deposition process conditions has yet to be clear. In this work, the adsorption mechanism of dimeric and monomeric DMAI on a fully hydroxylated Al₂O₃ surface is studied using machine-learning potential (MLP) calculations. The initial adsorption of DMAI appears facile and would result in the coexistence of both methyl and isopropoxy ligands on the surface. The reactivity of DMAI is smaller than that of TMA, owing to the propensity of DMAI to adopt a dimeric form. Especially when the substrate is partially covered by other adsorbate species, the large molecular size and low reactivity of dimeric DMAI considerably hinder its reactivity toward surface adsorption. Current results are in good correspondence with the previous experimental results, where lower growth per cycle (GPC) and higher selectivity in area-selective ALD (AS-ALD) could be observed by using DMAI than compared to those of TMA processes.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100754"},"PeriodicalIF":8.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000856/pdfft?md5=9cbdef6a50b4b9595b5b7045893dbb76&pid=1-s2.0-S2468217924000856-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141276431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Giant magnetocaloric effect and hysteresis loss in MnxFe2-xP0.5Si0.5 (0.7 ≤ x ≤ 1.2) microwires at ambient temperatures","authors":"Lin Luo ,&nbsp;Hongxian Shen ,&nbsp;Lunyong Zhang ,&nbsp;Yongjiang Huang ,&nbsp;Jianfei Sun ,&nbsp;Manh-Huong Phan","doi":"10.1016/j.jsamd.2024.100756","DOIUrl":"https://doi.org/10.1016/j.jsamd.2024.100756","url":null,"abstract":"<div><p>Magnetocaloric microwires are very promising for energy-efficient magnetic refrigeration in micro electromechanical systems (MEMS) and nano electromechanical systems (NEMS). Creating microwires that exhibit large magnetocaloric effects around room temperature represents an important but challenging task. Here, we report a tunable giant magnetocaloric effect around room temperature in Mn_<em>x</em>Fe_2-<em>x</em>P_0.5Si_0.5 (0.7≤<em>x</em> ≤ 1.2) microwires by utilizing a melt-extraction technique paired with thermal treatment and chemical engineering. The isothermal magnetic entropy change (Δ<em>S</em>_iso) and Curie temperature (<em>T</em>_C) can be tuned by adjusting the Mn/Fe ratio. The <em>T</em>_C varies from 351 to 190 K as <em>x</em> increases from 0.8 to 1.2. Among the compositions investigated, the <em>x</em> = 0.9 sample shows the largest value of Δ<em>S</em>_iso = 18.3 J kg⁻¹ K⁻¹ for a field change of 5 T around 300 K. After subtracting magnetic hysteresis loss, a large refrigerant capacity of ∼284.6 J kg⁻¹ is achieved. Our study paves a new pathway for the design of novel magnetocaloric microwires for active magnetic refrigeration at ambient temperatures.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100756"},"PeriodicalIF":6.7,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S246821792400087X/pdfft?md5=0b40fbf7b09e0267de44b2140750f617&pid=1-s2.0-S246821792400087X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141486007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of laser processability for LiFePO4 cathode material with nanosecond and femtosecond laser","authors":"Jaegeun Shin ,&nbsp;Juhee Yang ,&nbsp;Dongkyoung Lee","doi":"10.1016/j.jsamd.2024.100753","DOIUrl":"10.1016/j.jsamd.2024.100753","url":null,"abstract":"<div><p>Exploration of increased electrode surface area through laser structuring is undertaken to improve performance. While nanosecond lasers offer cost-effective processing, femtosecond lasers achieve a minimal heat effect, excelling in precision. Prior research has mainly focused on changes in electrode performance due to the duration of laser pulses, with insufficient attention to optimizing processability. This study, therefore, aims to compare the processability of active material coating layer in LFP cathodes using both nanosecond and femtosecond lasers. The specimens were subsequently analyzed morphologically for processability using scanning electron microscopy (SEM). Differences in the cross-sectional morphology of LFP cathodes processed by the two types of lasers revealed that nanosecond lasers require a higher pulse energy density for material removal.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100753"},"PeriodicalIF":6.7,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000844/pdfft?md5=79141f475160fd48bf80443eaf56e56f&pid=1-s2.0-S2468217924000844-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141275426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and anti-tumor effect in hepatocellular carcinoma treatment of AS1411 aptamer-targeted polyphyllin II-loaded PLGA nanoparticles","authors":"Huating Huang ,&nbsp;Aqian Chang ,&nbsp;Hulinyue Peng ,&nbsp;Jing Liu ,&nbsp;Aina Yao ,&nbsp;Yidan Ruan ,&nbsp;Pingzhi Zhang ,&nbsp;Tieshan Wang ,&nbsp;Changhai Qu ,&nbsp;Xingbin Yin ,&nbsp;Jian Ni ,&nbsp;Xiaoxv Dong","doi":"10.1016/j.jsamd.2024.100755","DOIUrl":"10.1016/j.jsamd.2024.100755","url":null,"abstract":"<div><p>Polyphyllin II (PPII) has been proven to have significant anti-liver cancer activity, but its application is limited by poor solubility, low bioavailability, and systemic toxicity caused by non-selectivity. To address the above problem, PPII was encapsulated into the Poly (lactic-<em>co</em>-glycolic acid) (PLGA) by precipitation method (PPII-NPs) for hepatocellular carcinoma treatment. Subsequently, Box–Behnken design (BBD) with three variables-three levels (3³) was utilized to optimize the PPII-NPs formulation. Under optimal conditions, the drug loading of nanoparticles reached 7.29 ± 0.08% and encapsulation efficiency was 80.98 ± 1.63%. Furthermore, aptamer AS1411 was adopted to enhance the tumor-targeting ability of nanoparticles (Apt/PPII-NPs). The drug loading of Apt/PPII-NPs was 6.25 ± 0.26%, had a spherical shape with a rough surface, a particle size of 252.3 ± 3.6 nm, and showed good slow-release performance and stability. In vitro, assays showed that the targeted modified nanoparticles had significant tumor selectivity and exerted efficient anti-tumor effects by inducing tumor cell apoptosis via the mitochondrial apoptotic pathway and death‐receptor pathway. In vivo, anti-tumor evaluation further demonstrated Apt/PPII-NPs not only effectively inhibited the growth of tumors, but also reduced PPII damage to normal tissues. In summary, this report strongly illustrated the advantages of a targeted nanoparticle platform for providing a solution for the rational application of PPII and improving the therapeutic effect of hepatocellular carcinoma.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100755"},"PeriodicalIF":8.0,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000868/pdfft?md5=7c0fc26ee17c2d02c050d8754cc14746&pid=1-s2.0-S2468217924000868-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141280398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study of β-cyclodextrin and carboxymethyl-β-cyclodextrin as effective drug delivery systems for oxymetholone: Design, preparation, characterization, phase solubility and in vitro drug release studies","authors":"Mehrdad Hadadian ,&nbsp;Reza Allahyari ,&nbsp;Behnam Mahdavi ,&nbsp;Majid Mohammadhosseini","doi":"10.1016/j.jsamd.2024.100751","DOIUrl":"https://doi.org/10.1016/j.jsamd.2024.100751","url":null,"abstract":"<div><p>Cyclodextrins (CDs) are well-known agents in drug delivery systems as they can improve the physical properties of drugs with their distinctive features. Oxymetholone (OXYM) is a derivative of testosterone, a steroid drug that is widely used in the treatment of various diseases. In the current research, the inclusion complexes of OXYM with carboxymethyl-β-cyclodextrin (CM-β-CD/OXYM) and β-cyclodextrin (β-CD/OXYM) have been successfully prepared to improve stability, solubility, and biopharmaceutical profile of OXYM. The characterization of the prepared inclusion complexes was carried out using FT-IR, XRD, TGA, DLS, BET, and UV–Vis techniques. In addition, the morphology of the synthesized inclusion complexes was evaluated in terms of their FE-SEM images. The encapsulation efficiency (EE%), phase solubility, and <em>in vitro</em> drug release of the products were also evaluated using a simple spectrophotometric method. In addition, the kinetic study of <em>in vitro</em> drug release was conducted using the appropriate mathematical equations. In view of the findings of this study, a higher solubility was observed for CM-β-CD/OXYM compared to β-CD/OXYM, nearly three times higher. Furthermore, the <em>in vitro</em> drug release study indicated that β-CD/OXYM offers higher release rates, and the kinetic study demonstrated that both carriers follow a non-Fickian mechanism.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100751"},"PeriodicalIF":8.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000820/pdfft?md5=f0de280e8a9aca631ec24883ecbdbf74&pid=1-s2.0-S2468217924000820-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141428837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nickel/ceria nanorod catalysts for the synthesis of substitute natural gas from CO2: Effect of active phase loading and synthesis condition","authors":"Tri Nguyen ,&nbsp;Ba Long Do ,&nbsp;Phung Anh Nguyen ,&nbsp;Thi Thuy Van Nguyen ,&nbsp;Cam Anh Ha ,&nbsp;Tien Cuong Hoang ,&nbsp;Cam Loc Luu","doi":"10.1016/j.jsamd.2024.100752","DOIUrl":"https://doi.org/10.1016/j.jsamd.2024.100752","url":null,"abstract":"<div><p>CO₂ methanation is one of the advantageous processes of carbon capture and utilisation (CCU) technologies to circulate the carbon on Earth, mitigating the release and loss of CO₂ into the atmosphere. Herein, a Ni/r-CeO₂ catalyst was fabricated using a facile method of impregnating Ni(NO₃)₂·6H₂O on CeO₂ nanorods (r-CeO₂), synthesised by hydrothermal method at low temperature (130 °C). The influence of Ni active phase content and activation condition on the characteristics and catalytic performances in CO₂ methanation were investigated. The physicochemical properties of the synthesised catalyst were studied using several techniques: XRD, EDS, isotherm nitrogen adsorption, SEM, HR-TEM, H₂-TPR, CO₂-TPD and Raman. Catalytic activity survey and analysis show the excellent performance of Ni/r-CeO₂ with a Ni loading of 15 wt% (15NiCe) calcined at 600 °C for 4 h and reduced at 450 °C for 2.5 h. By adjusting the nickel loading on ceria and altering synthesis conditions, it's possible to achieve highly dispersed NiO particles with an optimal size (∼13.9 nm), abundant oxygen vacancies, and the presence of medium-strength basic sites. This leads to improved catalytic activity, resulting in an equilibrium CO₂ conversion rate of approximately 90% and 100% selectivity for CH₄ at temperatures as low as 325°C. The 15Ni/r-CeO₂ catalyst serves as a highly active low-temperature catalyst for CO₂ methanation.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100752"},"PeriodicalIF":8.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000832/pdfft?md5=3f198cff6d4fed9278b56a506b5d4746&pid=1-s2.0-S2468217924000832-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141250265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Active carbon derived from rice husk as sustainable substitutes for costly platinum electrodes in dye-sensitized solar cells","authors":"M.I.U. Weerasinghe ,&nbsp;P.M.L. Kumarage ,&nbsp;I.G.K.D. Amarathunga ,&nbsp;T.M.W.J. Bandara ,&nbsp;D. Velauthapillai ,&nbsp;B.C. Karunarathne ,&nbsp;R. Punniamoorthy ,&nbsp;R.M.G. Rajapakse ,&nbsp;G.R.A. Kumara","doi":"10.1016/j.jsamd.2024.100749","DOIUrl":"10.1016/j.jsamd.2024.100749","url":null,"abstract":"<div><p>Significant financial and environmental challenges are associated with using platinum electrodes as counter electrodes (CEs) in dye-sensitized solar cells (DSCs). This work uses rice husk, an agricultural waste, to create active carbon that is appropriate for DSC CEs in response to these difficulties. A simple spray pyrolysis technique created activated carbon obtained from rice husks. The DSC employing activated rice husk carbon as the CE demonstrated a conversion efficiency of 6.06%, slightly lower than the 8.21% efficiency achieved with a platinum electrode-based cell. However, this performance gap is overshadowed by the substantial cost reduction enabled by the utilization of low-cost activated carbon compared to noble metal alternatives. This result introduces promising avenues for investigating the use of agriculturally derived carbon materials as workable and affordable options for platinum CEs in DSCs, thereby contributing to the sustainable advancement of photovoltaic systems. Even though the performance of DSC that uses activated carbon derived from rice husk in CE is slightly lower than its counterparts based on platinum, the cost reduction due to the use of low-cost activated carbon with noble metal is significant.</p></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"9 3","pages":"Article 100749"},"PeriodicalIF":8.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468217924000807/pdfft?md5=9f910c739212872f02726f0a6d827b69&pid=1-s2.0-S2468217924000807-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141145548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}