Optical detection of waterborne pathogens using nanomaterials

Bhardwaj, Neha; Bhardwaj, Sanjeev K.; Bhatt, Deepanshu; Lim, Dong Kwon; Kim, Ki‐Hyun; Deep, Akash

doi:10.1016/j.trac.2019.02.019

Cited by 78 publications

(44 citation statements)

References 234 publications

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“…Recently, various innovative detection techniques have been reported in the literature [ [79] , [80] , [81] ]. Novel nanomaterials-based sensors were found to be useful for the detection of waterborne pathogens [ 82 ]. There is a research potential to develop techniques using a similar approach for the detection of SARS-CoV-2 by utilizing different novel nanomaterials.…”

Section: Research Opportunities and Challengesmentioning

confidence: 99%

Coronavirus 2 (SARS-CoV-2) in water environments: Current status, challenges and research opportunities

Ihsanullah

Bilal

Naushad

2021

Journal of Water Process Engineering

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Section: Research Opportunities and Challengesmentioning

confidence: 99%

Coronavirus 2 (SARS-CoV-2) in water environments: Current status, challenges and research opportunities

Ihsanullah

Bilal

Naushad

2021

Journal of Water Process Engineering

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“…For instance, annual deaths in the United States caused by acute gastrointestinal illness have been increasing from consuming unsafe water, rising from 4.26 million to more than 30 million. In addition, approximately 2.2 million people die each year from diarrhea caused by contaminated water intake [ 9 , 10 ]. Thus, it is important to develop rapid, precise, and sensitive approaches for early detection of pathogens to prevent worldwide spread of infectious diseases, and to optimize medical care to reduce mortality and overall cost [ 1 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Nanomaterial-mediated paper-based biosensors for colorimetric pathogen detection

Nguyen

Kim

2020

TrAC Trends in Analytical Chemistry

155

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The pervasive spread of infectious diseases and pandemics, such as the 2019 coronavirus disease (COVID-19), are becoming increasingly serious and urgent threats to human health. Preventing the spread of such diseases prioritizes the development of sensing devices that can rapidly, selectively, and reliably detect pathogens at minimal cost. Paper-based analytical devices (PADs) are promising tools that satisfy those criteria. Numerous paper-based biosensors have been established that rival conventional pathogen detection methods. Among them, colorimetric strategies are promising since results can be interpreted by eye, and are simple to operate, which is advantageous for point-of-care testing (POCT). Particularly, the application of nanomaterials on paper-based biosensors has become important as these materials are capable of converting signals from pathogens through unique mechanisms to yield an amplified colorimetric readout. To highlight the research progress on using nanomaterials in colorimetric paper-based biosensor for pathogen detection, we discuss the sensing mechanisms of how they work, structural and analytical characteristics of the devices, and representative recent applications. Current challenges and future directions of using PADs and nanomaterial-mediated strategies are also discussed.

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“…To increase sensitivity and shorten testing time for food samples, several types of biosensors have been proposed using nanotechnology, the best of which are optical‐based sensors. Several optical sensors were proposed based on colorimetric, fluorescence, chemiluminescence, and plasmonic signal detection . These systems can provide reliable results in few minutes, but many of these systems are expensive, toxic (needs special handling), and/or complex in design, fabrication, and testing.…”

Section: Introductionmentioning

confidence: 99%

“…Several optical sensors were proposed based on colorimetric, fluorescence, chemiluminescence, and plasmonic signal detection. 11,[20][21][22][23] These systems can provide reliable results in few minutes, but many of these systems are expensive, toxic (needs special handling), and/or complex in design, fabrication, and testing.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the traditional detection methods (such as culture-based methods 10 and molecular methods [11][12][13][14][15] ) are relatively inefficient, as these methods are complex, costly for routine monitoring of samples, consume time, and many of them are labor intensive. 11 One of the fastest traditional detection methods is polymerase chain reaction 12 which, although it takes around 2 hours, does not provide satisfactory accuracy. In addition, this method is quite expensive.…”

Section: Introductionmentioning

confidence: 99%

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Using millimeter‐waves for rapid detection of pathogenic bacteria in food based on bacteriophage

Sultan

Ali

Fahmy

et al. 2019

Engineering Reports

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The accessibility of a rapid method for detection and identification of food‐borne pathogens is crucial for food industry worldwide. Antibiotic resistance bacteria (eg, E. coli) that can enter the food chain in different ways, can indeed survive on foods causing disease to humans. Hence, the introduction of a rapid detection technology becomes necessary for the food industry to ensure consumer safety, especially for products with short shelf lives. Bacteriophages can be used to detect and identify bacteria. In this study, a novel biosensor is proposed to detect pathogens by means of phage‐based baroreceptor. The biosensing technique is based on millimeter‐waves technology in the 30 to 60 GHz frequency range. The proposed biosensor can detect the pathogenic bacteria in different food samples by using a diamond‐shape microstrip slot antenna. The bacteriophage‐bacterium interaction is detected through the dynamic changes in transmission lines and antennas responses. The correctness of the antenna to detect E. coli in real food sample (tomato) is also investigated. The results indicate that, through the designed sensing elements, the transient interaction between bacteria and phage can effectively be detected. This sensing mechanism allows for a faster, more accurate, and low‐cost detection of pathogenic bacteria than traditional assays. Finally, the results are compared with previously reported sensing techniques.

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Optical detection of waterborne pathogens using nanomaterials

Cited by 78 publications

References 234 publications

Coronavirus 2 (SARS-CoV-2) in water environments: Current status, challenges and research opportunities

Coronavirus 2 (SARS-CoV-2) in water environments: Current status, challenges and research opportunities

Nanomaterial-mediated paper-based biosensors for colorimetric pathogen detection

Using millimeter‐waves for rapid detection of pathogenic bacteria in food based on bacteriophage

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