Plasmonic gold nanodiscs using piezoelectric substrate birefringence for liquid sensing

Hao, Danni; Kenney, Mitchell; Cumming, David R. S.

doi:10.1063/1.4954713

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…However, with the continuous expansion of the sensor research, the types of electrochemiluminescence reagents are also increasing, and the structural design of the sensor has also been developed. Its application fields have been widely involved in DNA analysis, oncogene analysis, immune analysis, and environmental testing [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Construction and Signal Feature Processing of Gold Nanobiosensors Based on the Internet of Things

Chen

2022

Journal of Healthcare Engineering

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With the continuous development of signal amplification technology and nanotechnology, more and more electrochemical sensors combining nanotechnology and signal amplification technology are applied in the field of analysis. In this paper, combined with the Internet of Things technology, the construction of gold nanobiosensors and signal characteristic processing are carried out. In this paper, a T-rich DNA probe is used as the recognition element, modified on the electrode surface, combined with DNA-modified nanogold particle amplification technology, and the electroactive substance peg amine is used as the signal molecule to develop a highly sensitive electrochemical biosensor for the detection of melamine. The sensor has good specificity and sensitivity, and the detection limit is as low as 0.5 NM. In addition, by combining sensors with the Internet of Things technology, melamine monitoring and signal characteristic processing can be carried out in real time. This model can easily achieve the purpose of accurate and quantitative analysis of melamine toxins and can be effective for food safety.

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Section: Introductionmentioning

confidence: 99%

Construction and Signal Feature Processing of Gold Nanobiosensors Based on the Internet of Things

Chen

2022

Journal of Healthcare Engineering

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“…For instance, surface acoustic wave (SAW) sensors, including Love mode acoustic wave sensors, have been proven to be highly sensitive and reliable for biosensing applications [89,90]. This sensing approach involves the transmission of an acoustic wave across the surface of a device substrate to an interdigitated transducer, where it is converted back into an electric signal through the piezoelectric effect, whereby any alterations to the mechanical wave are reflected in the output electric signal, allowing for the quantification of changes in the surface properties of the device substrate [91,92]. The preceding principle forms the basis for acoustic wave sensors where the SAW is adjustable by adding mass to the surface or by changing the length of the substrate and the spacing between them [91].…”

Section: Physical Sensormentioning

confidence: 99%

Additive Manufacturing Applications in Biosensors Technologies

Paul,

Aladese,

Marks

2024

Biosensors

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Three-dimensional (3D) printing technology, also known as additive manufacturing (AM), has emerged as an attractive state-of-the-art tool for precisely fabricating functional materials with complex geometries, championing several advancements in tissue engineering, regenerative medicine, and therapeutics. However, this technology has an untapped potential for biotechnological applications, such as sensor and biosensor development. By exploring these avenues, the scope of 3D printing technology can be expanded and pave the way for groundbreaking innovations in the biotechnology field. Indeed, new printing materials and printers would offer new possibilities for seamlessly incorporating biological functionalities within the growing 3D scaffolds. Herein, we review the additive manufacturing applications in biosensor technologies with a particular emphasis on extrusion-based 3D printing modalities. We highlight the application of natural, synthetic, and composite biomaterials as 3D-printed soft hydrogels. Emphasis is placed on the approach by which the sensing molecules are introduced during the fabrication process. Finally, future perspectives are provided.

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“…As for it is dependent on a specific chemical reaction, it is targeted detection and could achieve qualitative/quantitative analysis . Spectroscopic analysis instruments, such as X‐ray, photonic‐crystal fibers, surface‐enhanced Raman spectroscopy, could realize accurate chemical analysis . However, chemical and spectrum analysis method requires expensive laboratory equipment and highly qualified personnel, which are not suitable for real‐time on‐the‐spot detection.…”

Section: Introductionmentioning

confidence: 99%

Rapid Liquid Recognition and Quality Inspection with Graphene Test Papers

Jiang

Yang

et al. 2017

Global Challenges

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essential for meeting the future needs in various aspects of liquid monitoring.Conventional technologies of liquid sensing includes chemical analysis, spectroscopic analysis, liquid parameter analysis, bioelectronic/electronic tongue and chemiresistor. Chemical analysis method has a long history, e.g., titrimetry analysis and colorimetric analysis. As for it is dependent on a specific chemical reaction, it is targeted detection and could achieve qualitative/quantitative analysis. [6] Spectroscopic analysis instruments, such as X-ray, photonic-crystal fibers, surface-enhanced Raman spectroscopy, could realize accurate chemical analysis. [7][8][9][10][11] However, chemical and spectrum analysis method requires expensive laboratory equipment and highly qualified personnel, which are not suitable for real-time on-the-spot detection. Liquid parameter analyzers, such as surface tension apparatus or viscometer, are accurate, fast, and portable, [12] but its application was limited to the identification of organic solvents or specific liquids.Electronic tongue consisting of an array of nonselective chemical sensors could analyze simple or complex solutions quantitatively or qualitatively. [13][14][15] Electronic tongues based on different principles have been proposed, including voltammetric, potentiometric, impedimetric, optical, and enzymatic sensors. [14,[16][17][18][19][20] Owing to structural limitations, existing electronic tongues could hardly be embedded into flexible, portable, and wearable devices. Bioelectronic tongues obtain complex chemical information in biomaterial platform, including nanovesicles or living cells. [21][22][23] With high-performance odorant discriminatory ability in mixtures, bioelectronic tongues are suitable for portable rapid detection equipment, but the preparation cost is relatively high, and the testing conditions are complicated. Chemiresistor could change electrical resistance in the presence of chemical, which has widely applications in gas sensor. [24] Chemiresistor is characterized by high detection accuracy, relatively simple detection conditions, low manufacturing cost. However, in chemiresistor-based liquid-sensing system, the mechanism is based on the swelling of polymer substrate, so the detected liquid only limited to organic solvents. [25][26][27] As for its relatively simple structure, chemiresistor could be easily integrated as part of a flexible functional circuit. With designed sensing materials, electrical tongue based on chemiresistor has great potential to offer a unique and compelling capability for classification and detection of tested liquid.Electronic tongue is widely applied in liquid sensing for applications in various fields, such as environmental monitoring, healthcare, and food quality test. A rapid and simple liquid-sensing method can greatly facilitate the routine quality tests of liquids. Nanomaterials can help miniaturize sensing devices. In this work, a broad-spectrum liquid-sensing system is developed for rapid liquid recognition based on disposable...

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Plasmonic gold nanodiscs using piezoelectric substrate birefringence for liquid sensing

Cited by 5 publications

References 20 publications

Construction and Signal Feature Processing of Gold Nanobiosensors Based on the Internet of Things

Construction and Signal Feature Processing of Gold Nanobiosensors Based on the Internet of Things

Additive Manufacturing Applications in Biosensors Technologies

Rapid Liquid Recognition and Quality Inspection with Graphene Test Papers

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