A wireless, remote-query sensor for real-time detection of Escherichia coli O157:H7 concentrations

A ternary hybrid CdS/Pt–TiO2 nanotube structure for photoelectrocatalytic bactericidal effects on Escherichia Coli

“…Rapid, accurate methods for bacterial detection and effective bactericidal materials are essential with respect to food poisoning as well as water contamination, and therefore, treatment options. Quantitative, sensitive, and specific detection methods developed over the past several decades include DNA and RNA probes [2,3], immunomagnetic separation (ISM) analysis [4,5], and wireless magnetoelastic biosensors [6,7]. As one of the most effective bactericidal materials, TiO 2 photocatalyst has demonstrated the successful inactivation of bacteria, viruses, and cancer cell [8][9][10][11][12].…”

Emerging (Bio)Sensing Technology for Assessing and Monitoring Freshwater Contamination - Methods and Applications

“…Cholera, typhoid fever, bacillary dysentery, leptospirosis and gastroenteriris are some examples of waterborne diseases caused by Vibrio cholera, Salmonella typhi, Shigella spp., Leptospira spp., and Enteropathogenic Escherichia coli [EPEC] (Ashbolt, 2004). Table 1 resumes the latest screening methods for waterborne bacteria; capture and detection methods, limit of detection [LOD] and range of detection are compared (Baudart & Lebaron, 2010;Bharadwaj et al, 2011;Bruno et al, 2010;Chen et al, 2008;Duplan et al, 2011;Fu et al, 2010;Geng et al, 2011;Guven et al, 2011;Huang et al, 2008Huang et al, , 2011Karsunke et al, 2009;Kwon et al, 2010;Li et al, 2011A;Luo et al, 2010;Miranda-Castro et al, 2009;Park et al 2008;Sun et al, 2009;Wilbeboer et al, 2010;Wolter et al, 2008;Yoon et al, 2009;Yu et al, 2009;Xue et al, 2009). …”

“…Some authors used synthetic materials as recognition materials (Huang et al, 2008;Xue et al, 2009). Xue et al described a thioglycol acid [TGA] coupled with water-soluble quantum dots as a fluorescence marker for E. coli total count.…”

“…The resonance frequency of a liquid immersed magnetoelastic sensor, measured through magnetic field telemetry, changed mainly in response to bacteria adhesion to the sensor and the liquid properties of the culture medium. During its growth and reproduction, E. coli consumed nutrients from a liquid culture medium that decreased the solution viscosity, and, in turn, changed the resonance frequency of the medium-immersed magnetoelastic sensor (Huang et al, 2008).…”

Streptavidin and gold nanoparticles-based dual signal amplification for sensitive magnetoelastic sensing of mercury using a specific aptamer probe

“…Although these biosensors are convenient and sensitive, they still need an electrical connection to detector for the determination of harmful metal ions, which would cause health lesion to the testing personnel. Fortunately, the wireless magnetoelastic sensors (WMS) have been developed for detecting Staphylococcus [12], Escherichia coli O157:H7 [13], breast cancer cell [14], and so on. These sensors have some noteworthy advantages of being low cost, remote query and high sensitivity [15][16][17].…”