Aptamer-based electrochemical biosensors

Shadman, Seyedeh Malahat; Daneshi, Marzieh; Shafiei, Fatemeh; Azimimehr, Maryam; Khorasgani, Mehrdad Rayati; Sadeghian, Mehdi; Motaghi, Hasan; Mehrgardi, Masoud A.

doi:10.1016/b978-0-12-816491-4.00008-5

Cited by 20 publications

(13 citation statements)

References 176 publications

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“…Heavy metals are referred to as a group of metals and metalloids with an atomic weight between 63.5 and 200.6 g mol −1 and densities greater than 5 g cm −3 . 1,2 Common examples of heavy metals are Pb, As, Hg, Cd, Zn, Ag, Cu, Fe, Cr, Ni, Pd, and Pt. 3 Water pollution is caused due to discharge of heavy metals from anthropogenic sources such as mining, mineral processing, metallurgical operations, electroplating, fuels, painting, battery manufactures, paper, pigments, photographic materials, and explosive manufacturing.…”

Section: Introductionmentioning

confidence: 99%

“…Heavy metals are referred to as a group of metals and metalloids with an atomic weight between 63.5 and 200.6 g mol –1 and densities greater than 5 g cm –3 . , Common examples of heavy metals are Pb, As, Hg, Cd, Zn, Ag, Cu, Fe, Cr, Ni, Pd, and Pt . Water pollution is caused due to discharge of heavy metals from anthropogenic sources such as mining, mineral processing, metallurgical operations, electroplating, fuels, painting, battery manufactures, paper, pigments, photographic materials, and explosive manufacturing. , Most heavy metals are non-biodegradable and can be bioaccumulated through food chains into higher trophic levels, resulting in deteriorating effects on living species. , If they are adsorbed above the permissible levels to the human body, they can lead to serious health effects such as immune system and reproductive system diseases, accumulative poisoning, and cancers. ,, Consequently, environmentalists have been concerned about the research to develop effective technologies to remove and reuse these heavy metals from wastewater before being discharged into the environment. , The conventional methods for the removal of heavy metals from wastewater are ion exchange, , solvent extraction, electrolysis, precipitation, membrane separation, ion floatation, reverse osmosis, and adsorption .…”

Section: Introductionmentioning

confidence: 99%

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Green Synthesis of Reusable Adsorbents for the Removal of Heavy Metal Ions

Dharmapriya

Chung

et al. 2021

ACS Omega

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Industrial wastewater often contains heavy metals, like lead, copper, nickel, cadmium, zinc, mercury, arsenic, and chromium. Overdoses of heavy metals will impose a severe threat to human health. Adsorption is the most efficient way of wastewater treatment for eliminating heavy metals. A novel material-reusable hydrogel-based adsorbent was developed in overcoming the regeneration issue. The polyethylene glycol diacrylate-3-sulfopropyl methacrylate potassium salt (PEGDA-SMP) hydrogel performed an ion-exchange rate to remove heavy metals from wastewater in 30–120 min. The adsorption capacity of PEGDA-SMP increases the increasing pH of a solution, in which pH 5 reaches the maximum. Pseudo-second-order adsorption and the Langmuir adsorption model can fully describe the adsorption properties of PEGDA-SMP for heavy metals. PEGDA-SMP prefers to exchange Pb2+ through K+, and its adsorption capacity can achieve 263.158 mg/g. Ag+, Zn2+, Ni2+, and Cu2+ were 227.27, 117.647, 102.041, and 99.010 mg/g, respectively. The hydrated ionic radius of the heavy metal might play an essential role to affect the adsorption preference. The removal efficiency of heavy metals can approach over 95% for each heavy metal. PEGDA-SMP performs rapid desorption and reaches desorption equilibrium in 15 min. After 10 consecutive adsorption–desorption cycles, the adsorption capacity remained over 90%. The hydrogel developed in this study showed reversible heavy metal absorption. Therefore, excellent adsorption–desorption properties of PEGDA-SMP can be potentially extended to industrial wastewater for removing heavy metals.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Reusable Adsorbents for the Removal of Heavy Metal Ions

Dharmapriya

Chung

et al. 2021

ACS Omega

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“…Antibiotics are antimicrobial drugs widely utilized for therapeutic purposes or as supplements in livestock feed. Their abuse can have serious consequences, such as the rapid emergence of resistant bacteria [ 22 , 212 ]. During the constant efforts to develop specific and sensitive analysis tools for the detection of antibiotics in contaminated food products and water, electrochemical aptasensors have received extensive consideration.…”

Section: Electrochemical Aptasensors Developed Using Aryldiazonium Chemistry For Food Safety Monitoring Applicationsmentioning

confidence: 99%

The Role of Aryldiazonium Chemistry in Designing Electrochemical Aptasensors for the Detection of Food Contaminants

Raicopol

Pilan

2021

Materials

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Food safety monitoring assays based on synthetic recognition structures such as aptamers are receiving considerable attention due to their remarkable advantages in terms of their ability to bind to a wide range of target analytes, strong binding affinity, facile manufacturing, and cost-effectiveness. Although aptasensors for food monitoring are still in the development stage, the use of an electrochemical detection route, combined with the wide range of materials available as transducers and the proper immobilization strategy of the aptamer at the transducer surface, can lead to powerful analytical tools. In such a context, employing aryldiazonium salts for the surface derivatization of transducer electrodes serves as a simple, versatile and robust strategy to fine-tune the interface properties and to facilitate the convenient anchoring and stability of the aptamer. By summarizing the most important results disclosed in the last years, this article provides a comprehensive review that emphasizes the contribution of aryldiazonium chemistry in developing electrochemical aptasensors for food safety monitoring.

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“…The recent advances in electrochemical biosensors for foodborne pathogen detection have been outlined by several authors, reviewing aptamers as the selective recognition parts in electrochemical biosensing application (Cesewski & Johnson, 2020; Liu, Wang et al., 2021; Ni et al., 2020; Nooranian et al., 2021; Riu & Giussani, 2020; Schmitz et al., 2020; Shadman et al., 2019; Sun et al., 2021; Teng et al., 2016; Xu, Bai et al., 2021; Zhang et al., 2019). There were also reviews that reached an overview of nanomaterial or aptamer‐based biosensors, mostly focusing on the detection of pathogen in many different matrices (Alhamoud et al., 2019; Halicka & Cabaj, 2021; Lv et al., 2021; Nooranian et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

Atay

Altan

2023

Comp Rev Food Sci Food Safe

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Foodborne diseases caused by pathogen bacteria are a serious problem toward the safety of human life in a worldwide. Conventional methods for pathogen bacteria detection have several handicaps, including trained personnel requirement, low sensitivity, laborious enrichment steps, low selectivity, and long‐term experiments. There is a need for precise and rapid identification and detection of foodborne pathogens. Biosensors are a remarkable alternative for the detection of foodborne bacteria compared to conventional methods. In recent years, there are different strategies for the designing of specific and sensitive biosensors. Researchers activated to develop enhanced biosensors with different transducer and recognition elements. Thus, the aim of this study was to provide a topical and detailed review on aptamer, nanofiber, and metal organic framework–based biosensors for the detection of food pathogens. First, the conventional methods, type of biosensors, common transducer, and recognition element were systematically explained. Then, novel signal amplification materials and nanomaterials were introduced. Last, current shortcomings were emphasized, and future alternatives were discussed.

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Aptamer-based electrochemical biosensors

Cited by 20 publications

References 176 publications

Green Synthesis of Reusable Adsorbents for the Removal of Heavy Metal Ions

Green Synthesis of Reusable Adsorbents for the Removal of Heavy Metal Ions

The Role of Aryldiazonium Chemistry in Designing Electrochemical Aptasensors for the Detection of Food Contaminants

Nanomaterial interfaces designed with different biorecognition elements for biosensing of key foodborne pathogens

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