An ultrasensitive biosensing flexible chip using a novel silver@Prussian blue core-shell nanocube composite

Yang, Pengqi; Pang, Jun; Hu, Fuhao; Peng, Jingmeng; Jiang, Danfeng; Chu, Zhenyu; Jin, Wanqin

doi:10.1016/j.snb.2018.08.070

Cited by 35 publications

(20 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 6b, this ink can still preserve the typical absorption peak at 2,090 cm −1 , which belongs to the stretching absorption band of the CN functional group in the section of NFPBA, confirming no damage produced to the unit cell of NFPBA during mixing. It is worth noting that another strong adsorption peak at 1,700 cm −1 is revealed in both the mixture and carbon inks, indicating the existence of COOH groups derived from the carbon ink 47 . Due to the NH 2 group in the general enzyme, the abundant COOH groups are beneficial for establishing CONH 2 bonds for enzyme immobilization.…”

Section: Resultsmentioning

confidence: 95%

Screen‐printing of nanocube‐based flexible microchips for the precise biosensing of ethanol during fermentation

et al. 2021

Self Cite

View full text Add to dashboard Cite

The real‐time and full concentration analysis of ethanol during the fermentation reaction allows the precise control of the microbial metabolism to promote the conversion rate; however, only few techniques can directly detect the fermentation broth without pretreatment. To address this issue, a screen‐printed biosensing microchip (SPBM) was proposed to analyze the ethanol concentration in fermentation, relying on designing a well‐defined nanocubic structure of an Au nanoparticles/nickel hexacyanoferrate nanocomposite. This nanocomposite was then made into a printing ink for the direct fabrication of a SPBM. The as‐prepared microchip exhibits an ultrahigh electrocatalysis on nicotinamide adenine dinucleotide with a high sensitivity of 96.2 ± 2.9 μA·mM−1·cm−2. Moreover, after the immobilization of alcohol dehydrogenase, the accurate and rapid monitoring of the ethanol concentration during the real fermentation reaction can be realized within an ultrawide linear range of 0.1–10 M in the broth without any pretreatment.

show abstract

Section: Resultsmentioning

confidence: 95%

Screen‐printing of nanocube‐based flexible microchips for the precise biosensing of ethanol during fermentation

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition to the aforementioned flexible biosensor, a hybrid nanomaterial composed of Ag nanocubes (NCs) encapsulated by Prussian blue (PB) (AgNCs@PB) was synthesized and used as the template to develop a flexible biosensing platform for detection of hydrogen peroxide [96]. Based on the conductive property of AgNCs and electrocatalytic property of PB, authors synthesized the core-shell structural AgNCs@PB to integrate the properties of each nanomaterial.…”

Section: Hybrid Nanomaterial-based Biosensorsmentioning

confidence: 99%

“…The most important thing in this research is that the flexible conductive substrate composed of hybrid nanomaterial layers was developed via a simple fabrication process that can be easily applied to the development of other biosensing platforms. In addition to the aforementioned flexible biosensor, a hybrid nanomaterial composed of Ag nanocubes (NCs) encapsulated by Prussian blue (PB) (AgNCs@PB) was synthesized and used as the template to develop a flexible biosensing platform for detection of hydrogen peroxide [96]. Based on the conductive property of AgNCs and electrocatalytic property of PB, authors synthesized the coreshell structural AgNCs@PB to integrate the properties of each nanomaterial.…”

Section: Hybrid Nanomaterial-based Biosensorsmentioning

confidence: 99%

“…(b) Cyclic voltammograms of a flexible electrochemical biosensor based on an Au/MoS 2 /Au hybrid nanofilm on a polyimide (PI), and its ability for flexibility acquired by using a fatigue tester (reproduced with permission from Reference[32], published by Elsevier, 2019). (c) Schematic images of flexible biosensing platform based on silver nanocubes (NCs) encapsulated by Prussian blue (AgNCs@PB) bio-ink, and the amperometric response following the addition of hydrogen peroxide (reproduced with permission from reference[96], published by John Wiley and Sons, 2016).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Highly Sensitive Biosensors Based on Biomolecules and Functional Nanomaterials Depending on the Types of Nanomaterials: A Perspective Review

et al. 2020

View full text Add to dashboard Cite

Biosensors are very important for detecting target molecules with high accuracy, selectivity, and signal-to-noise ratio. Biosensors developed using biomolecules such as enzymes or nucleic acids which were used as the probes for detecting the target molecules were studied widely due to their advantages. For example, enzymes can react with certain molecules rapidly and selectively, and nucleic acids can bind to their complementary sequences delicately in nanoscale. In addition, biomolecules can be immobilized and conjugated with other materials by surface modification through the recombination or introduction of chemical linkers. However, these biosensors have some essential limitations because of instability and low signal strength derived from the detector biomolecules. Functional nanomaterials offer a solution to overcome these limitations of biomolecules by hybridization with or replacing the biomolecules. Functional nanomaterials can give advantages for developing biosensors including the increment of electrochemical signals, retention of activity of biomolecules for a long-term period, and extension of investigating tools by using its unique plasmonic and optical properties. Up to now, various nanomaterials were synthesized and reported, from widely used gold nanoparticles to novel nanomaterials that are either carbon-based or transition-metal dichalcogenide (TMD)-based. These nanomaterials were utilized either by themselves or by hybridization with other nanomaterials to develop highly sensitive biosensors. In this review, highly sensitive biosensors developed from excellent novel nanomaterials are discussed through a selective overview of recently reported researches. We also suggest creative breakthroughs for the development of next-generation biosensors using the novel nanomaterials for detecting harmful target molecules with high sensitivity.

show abstract

“…28 A novel threedimensional silver nanocube@Prussian blue core-shell material was provided to develop an ultrasensitive aptasensor. 29 Core-shell heterostructured PBA nanospheres were composited with silver nanoclusters and further applied as aptasensors for detecting bleomycin. 30 Especially, PBA nanocube precursors containing different metal ion centers such as nickel, cobalt, and iron were used to keep a general nanocuboidal structure while optimizing the composition of metal centers to efficiently anchor the probe biomolecules.…”

Section: Introductionmentioning

confidence: 99%

Quantification of EGFR and EGFR-overexpressed cancer cells based on carbon dots@bimetallic CuCo Prussian blue analogue

Song

Wang

et al. 2020

RSC Adv.

View full text Add to dashboard Cite

show abstract

An ultrasensitive biosensing flexible chip using a novel silver@Prussian blue core-shell nanocube composite

Cited by 35 publications

References 36 publications

Screen‐printing of nanocube‐based flexible microchips for the precise biosensing of ethanol during fermentation

Screen‐printing of nanocube‐based flexible microchips for the precise biosensing of ethanol during fermentation

Highly Sensitive Biosensors Based on Biomolecules and Functional Nanomaterials Depending on the Types of Nanomaterials: A Perspective Review

Quantification of EGFR and EGFR-overexpressed cancer cells based on carbon dots@bimetallic CuCo Prussian blue analogue

Contact Info

Product

Resources

About