Quartz crystal microbalance for bacteria application review

Saad, Nor Aimi; Zaaba, Siti Khadijah; Zakaria, A.; Kamarudin, Kamarulzaman; Khairunizam, Wan; Shariman, A. B.

doi:10.1109/iced.2014.7015849

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…In fact, binding of analytes leads to increased mass and this will alter the oscillation frequency of the crystals which is electrically measured and applied to identify the extra crystal mass (Sharma et al, 2013). QCM sensors are among label‐free piezoelectric biosensors used to characterize bacterial cells such as E. coli , S. enterica serovar Typhimurium, C. jejuni and B. anthracis (Saad et al, 2014).…”

Section: Biosensor and Biosensor‐based Methodsmentioning

confidence: 99%

Advanced nano biosensors for rapid detection of zoonotic bacteria

Ahangari

Mahmoodi

Mohammadzadeh

2022

Biotech & Bioengineering

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An infectious disease that is transmitted from animals to humans and vice-versa is called zoonosis. Bacterial zoonotic diseases can re-emerge after they have been eradicated or controlled and are among the world's major health problems which inflict tremendous burden on healthcare systems. The first step to encounter such illnesses can be early and precise detection of bacterial pathogens to further prevent the following losses due to their infections. Although conventional methods for diagnosing pathogens, including culture-based, polymerase chain reaction-based, and immunological-based techniques, benefit from their advantages, they also have their own drawbacks, for example, taking long time to provide results, and requiring laborious work, expensive materials, and special equipment in certain conditions.Consequently, there is a greater tendency to introduce simple, innovative, quicker, accurate, and low-cost detection methods to effectively characterize the causative agents of infectious diseases. Biosensors, therefore, seem to practically be one of those novel promising diagnostic tools on this aim. These are effective and reliable elements with high sensitivity and specificity, that their usability can even be improved in medical diagnostic systems when empowered by nanoparticles. In the present review, recent advances in the development of several bio and nano biosensors, for rapid detection of zoonotic bacteria, have been discussed in details.

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Section: Biosensor and Biosensor‐based Methodsmentioning

confidence: 99%

Advanced nano biosensors for rapid detection of zoonotic bacteria

Ahangari

Mahmoodi

Mohammadzadeh

2022

Biotech & Bioengineering

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“…Through the Sauerbrey equation, the mass of the substance adsorbed on the crystal sensor can be related to the frequency change as follows:

where

is the frequency shift,

is the mass change,

is the initial resonance frequency of the crystal, A is the active area of the crystal, and

and

are the density and shear modulus of quartz, respectively [ 79 ]. Measuring the change in the resonant frequency of the crystal will therefore provide information on the mass change and surface coverage, making it well suited for the characterization and analysis of biomimetic membranes [ 80 , 81 ]. The changes in energy dissipation (

) provide the real-time properties of the softness or viscoelasticity of the films deposited on the chip surface, which makes it possible to monitor the conformational changes.…”

Section: Surface Characterization Techniques Used To Determine the Me...mentioning

confidence: 99%

Solid and Liquid Surface-Supported Bacterial Membrane Mimetics as a Platform for the Functional and Structural Studies of Antimicrobials

Ren

Lyu

et al. 2022

Membranes

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Increasing antibiotic resistance has provoked the urgent need to investigate the interactions of antimicrobials with bacterial membranes. The reasons for emerging antibiotic resistance and innovations in novel therapeutic approaches are highly relevant to the mechanistic interactions between antibiotics and membranes. Due to the dynamic nature, complex compositions, and small sizes of native bacterial membranes, bacterial membrane mimetics have been developed to allow for the in vitro examination of structures, properties, dynamics, and interactions. In this review, three types of model membranes are discussed: monolayers, supported lipid bilayers, and supported asymmetric bilayers; this review highlights their advantages and constraints. From monolayers to asymmetric bilayers, biomimetic bacterial membranes replicate various properties of real bacterial membranes. The typical synthetic methods for fabricating each model membrane are introduced. Depending on the properties of lipids and their biological relevance, various lipid compositions have been used to mimic bacterial membranes. For example, mixtures of phosphatidylethanolamines (PE), phosphatidylglycerols (PG), and cardiolipins (CL) at various molar ratios have been used, approaching actual lipid compositions of Gram-positive bacterial membranes and inner membranes of Gram-negative bacteria. Asymmetric lipid bilayers can be fabricated on solid supports to emulate Gram-negative bacterial outer membranes. To probe the properties of the model bacterial membranes and interactions with antimicrobials, three common characterization techniques, including quartz crystal microbalance with dissipation (QCM-D), surface plasmon resonance (SPR), and neutron reflectometry (NR) are detailed in this review article. Finally, we provide examples showing that the combination of bacterial membrane models and characterization techniques is capable of providing crucial information in the design of new antimicrobials that combat bacterial resistance.

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“…Recently, optical technology was developed, which improves the detection limit as well as the sensitivity and the selectivity of biosensors. In the past decades, a variety of optical biosensor methods were developed, including surface plasmon resonance (SPR) [5,6], quartz crystal microbalance [7,8], and ellipsometer [9]. Zhang et al proposed a dual-channel microfluidic sensor based on a side-hole fiber with the advantage of system integration [10].…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Biosensor Based on Partially Immobilized Silver Nanopillars in the Terahertz Band

Liu

Bai

2021

Photonics

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In this paper, a highly sensitive biosensor based on partially immobilized silver nanopillars is proposed. The working frequency of this sensor is in the terahertz band, and the range of the detected refractive index is 1.33 to 1.38. We set air holes of two different sizes on the cross-section of the optical fiber and arranged them into a hexagon. In order to improve the sensitivity, silver nanopillars were immobilized on part of the surface of the fiber cladding. The method for detecting the change of refractive index of the bio-analyte was based on local surface plasmon resonance properties of noble metal. The research recorded valuable data about the values of loss peak and full width at half maximum as well as resonance frequency shift under different setting conditions. The data present the biosensor‘s final sensitivity as 1.749 THz/RIU.

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Quartz crystal microbalance for bacteria application review

Cited by 10 publications

References 33 publications

Advanced nano biosensors for rapid detection of zoonotic bacteria

Advanced nano biosensors for rapid detection of zoonotic bacteria

Solid and Liquid Surface-Supported Bacterial Membrane Mimetics as a Platform for the Functional and Structural Studies of Antimicrobials

Highly Sensitive Biosensor Based on Partially Immobilized Silver Nanopillars in the Terahertz Band

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