About This Journal

Advances in Analytic Science (AAS, eISSN: 2811-0129) is a peer-reviewed, open-access journal published online by Asia Pacific Academy of Science Pte. Ltd. AAS welcomes papers on all aspects of the theory and practical applications of analytical sciences including chemical analysis, environmental analysis, food analysis, pharmaceutical analysis, forensic analysis, and so on. It also publishes original research articles, reviews, perspectives, case reports, etc.



Latest Articles
Open Access
Article ID: 3079
by Marina Lesovskaya, Natalia Kabak
Adv. Anal. Sci. 2025, 6(1);   
Received: 18 November 2024; Accepted: 13 January 2025; Available online: 21 January 2025;
Issue release: 30 June 2025
Abstract The quality and safety indicators of a new type of multigrain bread using freshly obtained rye malt were studied. Hydrogen peroxide as a safe prooxidation activator and aqueous phytoextracts as natural antioxidants were used for the bioactivation of grain. The choice of phytoextract was made by comparing the antioxidant properties of thyme and oregano obtained with warm (60 ℃) or hot (80 ℃) extraction. The rate of accumulation of organic acids and reducing substances was maximum during malting under the influence of thyme extract (80 ℃). Oregano extracts were used to make rye-textured flour. The paper describes a new method for producing emulsified malt, known as “rye cream”. Unlike other methods, it is proposed to use not dried malt, but freshly obtained rye malt extract. This made it possible to form the adaptogenic properties of the food system, which was evident from the results of the antioxidant activity assessment. This assessment was carried out at different stages of the bread production process. It was shown that at the stage of rye cream production, the oxidation-reduction balance of the food system was shifted towards prooxidants, so the use of phytoextracts with antioxidant properties was necessary. At the dough production stage, the balance changed in the opposite direction, and antioxidants began to dominate the food system as functional nutritional components. Multigrain bread had antioxidant activity twice as high as the standard (Borodinsky bread) and had better characteristics compared to two analogues. Under the influence of multigrain bread, the production of free radicals was inhibited more gently than under the influence of rye bread “BIO”. Another analogue, Fitness bread, had the properties of a strong prooxidant, not an antioxidant. According to the results of an objective assessment in independent laboratories, multigrain bread with rye cream met regulatory requirements for quality and safety, which was confirmed by the results of physicochemical and microbiological analysis.
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Open Access
Article ID: 2665
by Zahra Ehsani, Seyed Mohammad Hassan Javadzadeh, Mahboobeh Baghi Hedeshi
Adv. Anal. Sci. 2024, 5(2);   
Received: 2 April 2024; Accepted: 16 July 2024; Available online: 29 August 2024;
Issue release: 31 December 2024
Abstract Over the past two decades, microwave kinetic inductance detectors (MKIDs) have gained exceptional importance in millimeter and sub-millimeter astronomy. MKIDs consist of thin strip resonators capable of detecting changes in the surface impedance of superconductor strips, which result from variations in resonance circuit properties. The principal noise in MKIDs comprises excess frequency noise and two-level system noise. In this paper, we propose a technique to mitigate the effect of two-level system (TLS) noise in MKIDs using a parallel plate capacitor with three layers of high ε dielectrics. To achieve this, we employ three layers of Al 2 O 3 , HfO 2 , and TiO 2 with equal thickness between the capacitor plates. The experimental results demonstrate a nearly 30% reduction in TLS power spectral density.
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Open Access
Article ID: 2830
by Md Jasim Uddin, Shahrin Risa Sejuti, Sharmin Lucky, Mili Akter, Sumaya Binty Hussain
Adv. Anal. Sci. 2024, 5(2);   
Received: 15 July 2024; Accepted: 14 September 2024; Available online: 25 September 2024;
Issue release: 31 December 2024
Abstract The prompt and precise identification of microorganisms is crucial for successful clinical diagnostics and the prevention of infectious disease outbreaks. Traditional diagnostic methods often suffer from limitations such as extended processing durations, elevated expenses, and the necessity for specialized laboratory equipment. In this research, we propose the development of novel nanostructured biosensors that utilize the distinct characteristics of nanomaterials to improve the accuracy, specificity, and efficiency of identifying pathogens. These biosensors are created with the intention of offering point-of-care testing functionality, thus rendering them appropriate for utilization in a range of clinical settings. The integration of advanced nanotechnology with bioanalytical methods aims to create a reliable system for the real-time identification of bacterial, viral, and fungal pathogens. This review encompasses the design, fabrication, and testing of the biosensors, along with a comprehensive analysis of their performance in comparison to conventional diagnostic techniques. The results demonstrate the potential of nanostructured biosensors to revolutionize pathogen detection, offering significant improvements in efficiency and accuracy, which are essential for timely medical intervention and public health management.
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Open Access
Article ID: 2838
by Tony Richard, Shiny Climensa
Adv. Anal. Sci. 2024, 5(2);   
Received: 18 July 2024; Accepted: 24 September 2024; Available online: 29 September 2024;
Issue release: 31 December 2024
Abstract Chemical sensors bridge the gap between the chemical and electrical/optical domains, offering a powerful tool for analyzing our environment. These ingenious devices, with detection limits reaching parts-per-billion (ppb) for some analytes, rely on interactions between a specific material and the target molecule. This interaction, which can involve changes in electrical current, light emission, or mass, is translated into a measurable signal. This review delves into the core working principles of various sensor types, highlighting their diverse applications. From environmental monitoring (tracking air and water pollutants at concentrations as low as 10 ppb) to medical diagnostics (detecting biomarkers for early disease identification), chemical sensors play a crucial role in shaping a safer and healthier future. Recent advancements, such as miniaturization and integration with nanomaterials, promise even greater sensitivity, portability, and affordability, paving the way for a new era of sensor-driven innovation. This review article explores these advancements and their potential impact on various fields, inspiring further development and exploration of this transformative technology.
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