Reusable biosensor-based polymer dot-coated electrode surface for wireless detection of bacterial contamination

Jo, Hyeong Jun; Robby, Akhmad Irhas; Kim, Seul Gi; Lee, Gibaek; Lee, Byung Chan; In, Insik

doi:10.1016/j.snb.2021.130503

Cited by 18 publications

(6 citation statements)

References 38 publications

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“…The absorption peak at 275 nm for PPC1, PPC2, and PPC3 and a peak at 245 nm for PPC4 indicated the presence of π-π* attributed to the aromatic group of the polyphenols ( Figure 1 a) [ 29 , 30 , 31 ]. Moreover, the broad absorption spectrum of PPC1, which ranged from 380 nm to 600 nm, further indicated the capability of PPC1 to absorb a wide range of light spectra owing to the graphene-like π-π stacking structure.…”

Section: Resultsmentioning

confidence: 99%

Protection and Restoration of Damaged Hair via a Polyphenol Complex by Promoting Mechanical Strength, Antistatic, and Ultraviolet Protection Properties

Won

Kim

An³

et al. 2023

Biomimetics

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In this study, we developed a hair-coating polyphenol complex (PPC) that showed ultraviolet (UV) protection properties, antistatic features, and the capability to enhance the mechanical strength of damaged hair. PPCs prepared with different ratios of tannic acid (TA), gallic acid (GA), and caffeic acid (CA) simultaneously increased the self-recovery of damaged hair by protecting the cuticle. PPC prevented light from passing through the damaged hair during exposure to UV radiation. Moreover, surfaces coated with PPC1 (TA:GA:CA, 100:20:0.5) exhibited a higher conductivity than surfaces coated with PPCs with other ratios of TA, GA, and CA, with a resistance of 0.72 MΩ. This influenced the antistatic performance of the surface, which exhibited no electrical attraction after being subjected to an electrostatic force. Additionally, damaged hair exhibited a significant increase in durability and elasticity after coating with a PPC1-containing shampoo, with a tensile strain of up to 2.06× post-treatment, indicating the recovery of the damaged cuticle by the PPC complex. Furthermore, PPC1-containing shampoo prevented damage by scavenging excess reactive oxygen species in the hair. The combination effect promoted by the natural PPC offers new insights into hair treatment and paves the way for further exploration of hair restoration technology.

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Section: Resultsmentioning

confidence: 99%

Protection and Restoration of Damaged Hair via a Polyphenol Complex by Promoting Mechanical Strength, Antistatic, and Ultraviolet Protection Properties

Won

Kim

An³

et al. 2023

Biomimetics

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“…The prevention of infectious diseases caused by bacterial contamination is a crucial part of the protection of human life and health. Therefore, Jo et al [93] utilized electrode based on PDs coating to establish a reusable biosensor for determination of gram-negative and gram-positive bacteria. In this experiment, PDs were used to modify the electrode to achieve specific binding or interaction with various compounds outside the membrane of the bacterial cells, that would enhance the specific recognition of the sensor.…”

Section: Organic-based Nanomaterialsmentioning

confidence: 99%

Optically Active Nanomaterials and Its Biosensing Applications—A Review

et al. 2023

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This article discusses optically active nanomaterials and their optical biosensing applications. In addition to enhancing their sensitivity, these nanomaterials also increase their biocompatibility. For this reason, nanomaterials, particularly those based on their chemical compositions, such as carbon-based nanomaterials, inorganic-based nanomaterials, organic-based nanomaterials, and composite-based nanomaterials for biosensing applications are investigated thoroughly. These nanomaterials are used extensively in the field of fiber optic biosensing to improve response time, detection limit, and nature of specificity. Consequently, this article describes contemporary and application-based research that will be of great use to researchers in the nanomaterial-based optical sensing field. The difficulties encountered during the synthesis, characterization, and application of nanomaterials are also enumerated, and their future prospects are outlined for the reader’s benefit.

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“…This biosensor for E. coli exhibited a detection limit of 1 CFU/mL, with the characteristics of being fast and portable, and having broad application prospects in portable equipment. Jo et al coated the electrode with polymer dots, based with polyvinyl pyrrolidone, modified by boric acid for the detection of bacteria [ 62 ]. The biosensor allowed coating on the electrode surface due to the presence of catechol, and boric acid modification provides selectivity for bacterial capture.…”

Section: Polymer-based Biosensors For Detection Of Pathogenic Bacteriamentioning

confidence: 99%

“…( d ) Biosensors based on B-PD for detection of S. aureus . Reprinted with permission from reference [ 62 ], copyright Elsevier 2021.…”

Section: Figurementioning

confidence: 99%

Recent Advances in Polymer-Based Biosensors for Food Safety Detection

Wang,

Huang,

Weng

2023

Polymers

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The excessive use of pesticides and drugs, coupled with environmental pollution, has resulted in the persistence of contaminants on food. These pollutants tend to accumulate in humans through the food chain, posing a significant threat to human health. Therefore, it is crucial to develop rapid, low-cost, portable, and on-site biosensors for detecting food contaminants. Among various biosensors, polymer-based biosensors have emerged as promising probes for detection of food contaminants in recent years, due to their various functions such as target binding, enrichment, and simple signal reading. This paper aims to discuss the characteristics of five types of food pollutants—heavy metals, pesticide residues, pathogenic bacteria, allergens, and antibiotics—and their adverse effects on human health. Additionally, this paper focuses on the principle of polymer-based biosensors and their latest applications in detecting these five types of food contaminants in actual food samples. Furthermore, this review briefly examines the future prospects and challenges of biosensors for food safety detection. The insights provided in this review will facilitate the development of biosensors for food safety detection.

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Reusable biosensor-based polymer dot-coated electrode surface for wireless detection of bacterial contamination

Cited by 18 publications

References 38 publications

Protection and Restoration of Damaged Hair via a Polyphenol Complex by Promoting Mechanical Strength, Antistatic, and Ultraviolet Protection Properties

Protection and Restoration of Damaged Hair via a Polyphenol Complex by Promoting Mechanical Strength, Antistatic, and Ultraviolet Protection Properties

Optically Active Nanomaterials and Its Biosensing Applications—A Review

Recent Advances in Polymer-Based Biosensors for Food Safety Detection

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