{"title":"Design of an innovative high-performance lead-free and eco-friendly perovskite solar cell","authors":"P. Arockia Michael Mercy, K. S. Joseph Wilson","doi":"10.1007/s13204-022-02745-7","DOIUrl":"10.1007/s13204-022-02745-7","url":null,"abstract":"<div><p>Perovskite solar cells (PSCs) with high efficiency and low cost are being actively developed. In recent years, the role of lead-based PSCs has become very important in the solar cell industry. But its toxicity and instability present a significant challenge to the development of commercially viable products. Under such circumstances, Ti-based all-inorganic (PSC) materials are of paramount importance in the development of high-performance PSCs. This work examines the theoretical feasibility of a lead-free, environmentally friendly, and reliable Cs<sub>2</sub>TiBr<sub>6</sub>-based PSC. The analysis of various hole transport layers (HTLs) and electron transport layers (ETLs) is performed in order to select materials that would result in stronger perovskite solar cells with higher stability. The goal of this paper is to design a lead-free PSC using Cs<sub>2</sub>TiBr<sub>6</sub> as an absorber layer in the form of Au/CuSbS<sub>2</sub>/ Cs<sub>2</sub>TiBr<sub>6</sub>/WO<sub>3</sub>/FTO. Each composite layer is optimized and analyzed through simulations utilizing SCAPS-1D software to achieve elevated performance. A maximum power-conversion efficiency of 20.40% is achieved for the proposed solar cell through optimization of the ETL, HTL, metal contact materials, defect density of the absorber and the thickness of the absorber, HTL, and FTO. These results will pave the way for developing eco-friendly and highly efficient perovskite photovoltaic devices.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 5","pages":"3289 - 3300"},"PeriodicalIF":3.674,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4682094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Urooj Fatima, M. B. Tahir, Soumaya Gouadria, N. R. Khalid, Tasmia Nawaz, M. Sagir, Saifeldin M. Siddeeg, Hussein Alrobei, Meshal Alzaid
{"title":"Synthesis of ternary photocatalysts BiVO4/Ag/black phosphorene for the degradation of dyes and pharmaceuticals","authors":"Urooj Fatima, M. B. Tahir, Soumaya Gouadria, N. R. Khalid, Tasmia Nawaz, M. Sagir, Saifeldin M. Siddeeg, Hussein Alrobei, Meshal Alzaid","doi":"10.1007/s13204-023-02762-0","DOIUrl":"10.1007/s13204-023-02762-0","url":null,"abstract":"<div><p>Under UV and visible light irradiation, semiconductive photocatalysis is showing a tendency for disinfection and mineralization of organic molecules and other dangerous contaminants. Some heavy metals and refractive organic molecules are not transferred to other phases, making mineralization difficult. The hydrothermal technique is used to make bismuth vanadate and a composite of bismuth vanadate with silver and black phosphorene in this research. The concentration of black phosphorene is varied from 1 to 3%. X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) spectroscopy, and ultraviolet (UV) spectroscopy is used to investigate the morphological, structural, and optical features of the manufactured sample. The photocatalytic degradation of contaminants is accomplished by the process of photocatalysis. Methylene blue (MB) is a target pollutant for photocatalytic degradation in this work. The BiVO<sub>4</sub>/Ag/black phosphorene 3% composite degrades 99% of MB in 70 min.\u0000</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 8","pages":"5501 - 5507"},"PeriodicalIF":3.674,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13204-023-02762-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4647616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sumaira Manzoor, Salma Aman, Meznah M. Alanazi, Shaimaa A. M. Abdelmohsen, Rabia Yasmin Khosa, Naseeb Ahmad, Abdul Ghafoor Abid, Mehar Un Nisa, Ruimao Hua, Adeel Hussain Chughtai
{"title":"Facile fabrication of MnTe@CNT nanocomposite for high efficiency hydrogen production via renewable energy sources","authors":"Sumaira Manzoor, Salma Aman, Meznah M. Alanazi, Shaimaa A. M. Abdelmohsen, Rabia Yasmin Khosa, Naseeb Ahmad, Abdul Ghafoor Abid, Mehar Un Nisa, Ruimao Hua, Adeel Hussain Chughtai","doi":"10.1007/s13204-023-02764-y","DOIUrl":"10.1007/s13204-023-02764-y","url":null,"abstract":"<div><p>It is crucial for water splitting to design highly effective electrode materials with cheap cost and superior effectiveness for the OER (oxygen evolution reaction). Herein, we disclose first instance of an extraordinary electrocatalyst like manganese telluride that has been hydrothermally encased in carbon nanotubes (MnTe@CNTs). The physical characteristics of synthesized catalysts are examined for the analysis of structural, morphologic, and the textural properties. The as-synthesized MnTe@CNTs nanocomposite exhibits significant catalytic performance exhibiting the Cdl (double layer capacitance) and ECSA (electrochemical surface area) values of 10.23 mF cm<sup>−2</sup> and 256 cm<sup>2</sup>, respectively. Due to the excellent ECSA, the nanocomposite shows lower overpotential and smaller Tafel slope of 256 mV and 45.1 mV dec<sup>−1</sup>, respectively, for the OER at 10 mA cm<sup>−2</sup> current density in 1.0 M KOH solution. Furthermore, MnTe@CNTs nanostructure demonstrates the exhibits the 100 h-long durability. These remarkable results open new channels for future green energy applications.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 8","pages":"5509 - 5519"},"PeriodicalIF":3.674,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4645072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ropivacaine combined with MNP in mouse anesthesia","authors":"Yingying Cai, Jinzhi Pan","doi":"10.1007/s13204-022-02734-w","DOIUrl":"10.1007/s13204-022-02734-w","url":null,"abstract":"<div><p>It was to study the preparation of magnetic nanoparticles (MNP)-encapsulated ropivacaine (RP) anesthesia and to explore its metabolism in mice and its effect on the function of various organs in mice. Fe<sub>3</sub>O<sub>4</sub> MNP gel-encapsulated RP complex (RP–MNP) was prepared, and the content and release characteristics of RP were determined in vitro using the ultraviolet–visible spectroscopy. 30 BALB/c mice were randomly divided into 3 groups: RP-I (0.05% RP), RP-NG (1% RP encapsulated 1% RP, no Fe<sub>3</sub>O<sub>4</sub> MNP), and RP-MNP (RP–MNP complex), all were injected into the tail vein with the volume of 2 mL, and there were 10 mice in each group. All mice were covered with ring and round magnets in their right paws instead of left paws. The thermal nociception test was used to detect the withdrawal latency of the left and right paws of each group of mice, and to detect the concentration of RP in plasma and ankle tissues and the cardiopulmonary function, serum biochemical indicators, and pharmacokinetic indicators of the mice in each group. The release efficiency of RP was the best at 37 °C. The withdrawal latency of right hind paw of mice in the RP-NG group was significantly lower than that in the RP-I group and the RP-MNP group in 10–80 min (<i>P</i> < 0.05). The withdrawal latency of right hind paw of mice in the RP-MNP group was significantly higher than that in the RP-I group in 10–60 min (<i>P</i> < 0.05). Compared with RP-I group, RP concentration in plasma and ankle tissue of mice in RP-NG group and RP-MNP group were significantly reduced (<i>P</i> < 0.05). Compared with the RP-I group and the RP-NG group, the heart rate, systolic blood pressure, diastolic blood pressure, and mean arterial pressure of the RP-MNP group were significantly reduced (<i>P</i> < 0.05). Compared with RP-I group and RP-MNP group, PeCO<sub>2</sub> and PaO<sub>2</sub> in RP-NG group were significantly reduced (<i>P</i> < 0.05). There were no significant differences in serum biochemical indicators and pharmacokinetic indicators between the three groups, such as blood urea nitrogen, alanine aminotransferase, creatine kinase, and creatinine. The drug-loaded magnetic nanoparticle RP–MNP complex, injected into mice via the tail vein and applied magnets to the ankle, can produce local anesthesia block in the ankle of mice, and its security and efficacy were higher than intravenous injection of ropivacaine alone.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 5","pages":"3589 - 3598"},"PeriodicalIF":3.674,"publicationDate":"2023-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13204-022-02734-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4299603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study of integration of block chain and Internet of Things (IoT): an opportunity, challenges, and applications as medical sector and healthcare.","authors":"Ahmed Ali Talib Al-Khazaali, Sefer Kurnaz","doi":"10.1007/s13204-021-02070-5","DOIUrl":"https://doi.org/10.1007/s13204-021-02070-5","url":null,"abstract":"<p><p>With fastest development in communication technologies, Internet of Things (IoT) plays a key role with full maturity and its infancy. Rapidly, it has developed (growth) for large data transmission over the wireless communication. Hence, it is needed to manage system and full fill the market requirement for practical application. Many existing IoT has greatly centralized architectures that have many technical limitations. Examples of these limitations are cyber attacks. Hence, it is needed to find out new techniques for enhancement of data accessing with maintaining security as well as privacy. The solution for this problem is to make the combination of the IoT with block chain which gives a guarantee to sense data integrity. Integration of IoT and block chain resulted in immutable log, comprehensive and easy access. Here, this paper carried out the study of integration of IoT and block chain in relation with different issues, opportunities and application area.</p>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 2","pages":"1531-1537"},"PeriodicalIF":3.674,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8445783/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10728953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RETRACTED ARTICLE: Evaluation of ferritin level in COVID-19 patients and its inflammatory response.","authors":"Jing Chen, Zheng-Xin He, Fun-Kun Wang","doi":"10.1007/s13204-021-02115-9","DOIUrl":"https://doi.org/10.1007/s13204-021-02115-9","url":null,"abstract":"","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 4","pages":"3121"},"PeriodicalIF":3.674,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8812356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9089054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hemant B Mahajan, Ameer Sardar Rashid, Aparna A Junnarkar, Nilesh Uke, Sarita D Deshpande, Pravin R Futane, Ahmed Alkhayyat, Bilal Alhayani
{"title":"Integration of Healthcare 4.0 and blockchain into secure cloud-based electronic health records systems.","authors":"Hemant B Mahajan, Ameer Sardar Rashid, Aparna A Junnarkar, Nilesh Uke, Sarita D Deshpande, Pravin R Futane, Ahmed Alkhayyat, Bilal Alhayani","doi":"10.1007/s13204-021-02164-0","DOIUrl":"https://doi.org/10.1007/s13204-021-02164-0","url":null,"abstract":"<p><p>Since the last decade, cloud-based electronic health records (EHRs) have gained significant attention to enable remote patient monitoring. The recent development of Healthcare 4.0 using the Internet of Things (IoT) components and cloud computing to access medical operations remotely has gained the researcher's attention from a smart city perspective. Healthcare 4.0 mainly consisted of periodic medical data sensing, aggregation, data transmission, data sharing, and data storage. The sensitive and personal data of patients lead to several challenges while protecting it from hackers. Therefore storing, accessing, and sharing the patient medical information on the cloud needs security attention that data should not be compromised by the authorized user's components of E-healthcare systems. To achieve secure medical data storage, sharing, and accessing in cloud service provider, several cryptography algorithms are designed so far. However, such conventional solutions failed to achieve the trade-off between the requirements of EHR security solutions such as computational efficiency, service side verification, user side verifications, without the trusted third party, and strong security. Blockchain-based security solutions gained significant attention in the recent past due to the ability to provide strong security for data storage and sharing with the minimum computation efforts. The blockchain made focused on bitcoin technology among the researchers. Utilizing the blockchain which secure healthcare records management has been of recent interest. This paper presents the systematic study of modern blockchain-based solutions for securing medical data with or without cloud computing. We implement and evaluate the different methods using blockchain in this paper. According to the research studies, the research gaps, challenges, and future roadmap are the outcomes of this paper that boost emerging Healthcare 4.0 technology.</p>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"13 3","pages":"2329-2342"},"PeriodicalIF":3.674,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8813573/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9374811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}