Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Author: search.filters.author.Sözmen,A.B.

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  • Book Part
    Micro-environment Establishment for Promoting Diverse Algal Growth
    (Springer Science and Business Media Deutschland GmbH, 2024) Sözmen,A.B.
    Algae offer sustainable sources for water, food, and energy production. They can remove pollutants and pathogens from wastewater and provide potable water. Also they can also be used in creating dietary supplements, functional foods, and biofuels. An optimal micro-environment is essential to promote their growth and productivity in specific applications, and for this purpose it is important to take various physical factors such as light, temperature, hydrodynamics, agitation, and shear stress and chemical factors such as nutrients, pH, and dissolved oxygen into consideration. These factors affect algae growth and productivity, both on their own and by a combinational affect. It is important to properly monitor and manage these factors to ensure optimal algae growth and productivity. This chapter provides an overview of physical and chemical factors that influence growth of algae, empha-sizing the importance of micro-environment management in promoting sustainable algae-based industries. It also includes the strategies that can be applied for this purpose, which covers the cultivation techniques and methods to manage cultivation microenvironment in terms of pH, nutrients, and dissolved oxygen. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
  • Article
    Citation - Scopus: 3
    Development of Chrono-Spectral Gold Nanoparticle Growth Based Plasmonic Biosensor Platform
    (Elsevier Ltd, 2024) Sözmen,A.B.; Elveren,B.; Erdogan,D.; Mezgil,B.; Bastanlar,Y.; Yildiz,U.H.; Arslan Yildiz,A.
    Plasmonic sensor platforms are designed for rapid, label-free, and real-time detection and they excel as the next generation biosensors. However, current methods such as Surface Plasmon Resonance require expertise and well-equipped laboratory facilities. Simpler methods such as Localized Surface Plasmon Resonance (LSPR) overcome those limitations, though they lack sensitivity. Hence, sensitivity enhancement plays a crucial role in the future of plasmonic sensor platforms. Herein, a refractive index (RI) sensitivity enhancement methodology is reported utilizing growth of gold nanoparticles (GNPs) on solid support and it is backed up with artificial neural network (ANN) analysis. Sensor platform fabrication was initiated with GNP immobilization onto solid support; immobilized GNPs were then used as seeds for chrono-spectral growth, which was carried out using NH2OH at varied incubation times. The response to RI change of the platform was investigated with varied concentrations of sucrose and ethanol. The detection of bacteria E.coli BL21 was carried out for validation as a model microorganism and results showed that detection was possible at 102 CFU/ml. The data acquired by spectrophotometric measurements were analyzed by ANN and bacteria classification with percentage error rates near 0% was achieved. The proposed LSPR-based, label-free sensor application proved that the developed methodology promises utile sensitivity enhancement potential for similar sensor platforms. © 2024 The Author(s)