Engineered Science最新文献

Electrochemical Detection of Uropathogenic Escherichia Coli Using PVA/R-GO/PEI Modified Nanocomposite Electrode PVA/R-GO/PEI修饰纳米复合电极电化学检测尿路致病性大肠杆菌

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es903

P. P.

{"title":"Electrochemical Detection of Uropathogenic Escherichia Coli Using PVA/R-GO/PEI Modified Nanocomposite Electrode","authors":"P. P.","doi":"10.30919/es903","DOIUrl":"https://doi.org/10.30919/es903","url":null,"abstract":"Detecting microorganisms quickly and selectively is extremely important in clinical analysis and in monitoring the quality of food and water. This study details the development of a biosensor that uses electrochemical methods to selectively detect uropathogenic Escherichia coli (E. coli) bacteria in both aqueous and serum samples. The biosensor was developed using a simple and cost-effective method involving reduced graphene oxide (r-GO) with PVA (Polyvinylalcohol) and PEI (Polyethylenimine) through a Sol-Gel spin coating process. The numerous NH 2 groups on the PVA and PEI were used to functionalize the biosensor's surface. To increase the specificity of the detection process, amide bonds were formed on the electrode surface using anti-fimbrial E. coli antibodies. The redox mediator prevents the formation of immunological complex and it enhances the transmission of electrons from the developed PVA/rGO/PEI-modified layer to detect E. coli. The development of an electrochemical test for Escherichia coli illustrated the efficacy of these biosensors. Using only 5 µL of the sample, it was discovered that these biosensors had a broad dynamic range (915-2.5×10 7 CFU/mL) and low limits of detection (285 CFU/mL). Moreover, the biosensor performed well in aqueous, serum, and urine media, making it potentially useful for the clinical diagnosis of pathogenic diseases. This study highlights the potential of these biosensors for real-world, point-of-care applications.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75383461","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}

引用次数: 0

Chitosan-based Magnetic Particles as Adsorbents for Anionic Contaminants 壳聚糖磁性颗粒对阴离子污染物的吸附剂研究

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es8d851

Melina Kloster, Adriele A. de Almeida, D. Muraca, N. Marcovich, M. Mosiewicki

引用次数: 1

On the Development of a Passive Shape Memory Alloy- Based Cooling System – Part I: Design and Implementation 基于被动形状记忆合金的冷却系统的研制——第一部分:设计与实现

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es927

A. Riccio, A. Sellitto, D. Borrelli, R. Sansone, A. Caraviello, Ugo Riccio, A. Torluccio, Luca Pacini, R. Mohr

引用次数: 0

A Novel TOPSIS Linear Programming Model Based on the Taguchi Method for Solving the Multi-Response Optimization Problems: A Case Study of a Fish Scale Scraping Machine 基于田口法求解多响应优化问题的TOPSIS线性规划新模型——以鱼鳞刮割机为例

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es882

Anucha Sriburum, Narong Wichapa, Wanrop Khanthirat

引用次数: 0

Modified Layered Double Hydroxide – PEG Magneto-Sensitive Hydrogels with Suitable Ligno-Alginate Green Polymer Composite for Prolonged Drug Delivery Applications 改性层状双氢氧根-聚乙二醇磁敏水凝胶与合适的木质素-海藻酸绿色聚合物复合材料延长药物递送应用

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es914

Hafsa Bahaar, S. Reddy, B. S. Kumar, Prashanthi K, Ananda Murthy H.C.

引用次数: 3

Investigation of Sandwich-Type Generator Thermoelectric Element Power Generation 三明治式发电机热电元件发电的研究

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es1016

Catur Harsito, Ganjar Pramudi, Riyadi Muslim, Dimas Adika, Yudi Kurniawan

引用次数: 0

Transforming Disease Diagnosis and Management: A Comprehensive Review of AI-Driven Urine Analysis in Clinical Medicine 转变疾病诊断和管理:人工智能驱动尿液分析在临床医学中的综合综述

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es1009

Vinod Kumar Shukla, Manu Sudhi, Dasharathraj K Shetty, Suvidhi Banthia, Priyamvadha Chandrasekar, Nithesh Naik, BM Zeeshan Hameed, Girisha S, Jayaraj Mymbilly Balakrishnan

引用次数: 0

Anti-Bacterial Activity of Kalzhat Clay Functionalized with Ag and Cu Nanoparticles Ag和Cu纳米粒子功能化卡尔扎特粘土的抗菌活性研究

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es972

Sana Kabdrakhmanova, Joshy K.S, Aiswarya Sathian, Kadiran Aryp, Kydyrmolla Akatan, Esbol Shaimardan, Madiar Beisebekov, Temirkhanova Gulden, Ainur Kabdrakhmanova, Aida Maussumbayeva, Tomy Muringayil Joseph, Sabu Thomas

引用次数: 0

Improving the Corrosion Performance of LPBF- and EBM-Processed Ti-6Al-4V by Chemical Pickling 化学酸洗提高LPBF和ebm加工Ti-6Al-4V的腐蚀性能

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es985

Alessandro Carrozza, Marina Cabrini, Sergio Lorenzi, Mariangela Lombardi, Tommas Pastore

{"title":"Improving the Corrosion Performance of LPBF- and EBM-Processed Ti-6Al-4V by Chemical Pickling","authors":"Alessandro Carrozza, Marina Cabrini, Sergio Lorenzi, Mariangela Lombardi, Tommas Pastore","doi":"10.30919/es985","DOIUrl":"https://doi.org/10.30919/es985","url":null,"abstract":"Ti-6Al-4V is a popular material in the biomedical industry for orthopedic prosthetics production. Moreover, this alloy is well-processable via additive manufacturing (AM) technologies, allowing to tailor the design of the implant according to the specific needs of each individual patient. Nevertheless, AM technologies deploy metal powders, resulting in very rough topologies due to partially melted/adhered residual particles on the surfaces generated. Although this promotes osseointegration, corrosion-induced particle dropping can result in a severe inflammatory response in the patient. To overcome this, a pickling treatment was specifically developed and optimized to decrease the concentration of residual particles, without compromising surface roughness. Specimens produced via laser-and electron beam-powder bed fusion (PBF) were investigated. Three different surface finishing conditions (AM-generated, polished and pickled) were also compared via potentiostatic polarization tests. The specimens that underwent the pickling process proved to achieve lower current densities for long term exposures in simulated body fluid (SBF). Another critical phenomenon that occurs in prosthetics is the release of metal ions over time. To assess this issue, multiple electrochemical tests (potentiostatic polarization, electrochemical impedance spectroscopy) were deployed to assess the effect of the different PBF technologies and heat treatments on the ions release rate of Ti-6Al-4V in SBF.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136306084","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}

引用次数: 0

Whey to Ethanol: Unlocking the Potential of Cheese Whey for Sustainable Bioethanol Production 乳清到乙醇:释放奶酪乳清可持续生物乙醇生产的潜力

Engineered Science Pub Date : 2023-01-01 DOI: 10.30919/es998

Azhar Zhubanova, Nuraly Akimbekov, Kuanysh Tastambek, Gulzhamal Abdieva, Perizat Ualieva, Azhar Malik, Nazym Altynbay, Qiao Xiaohui

引用次数: 0