Rapid synthesis of a highly active and uniform 3-dimensional SERS substrate for on-spot sensing of dopamine

Lin, Bingyong; Chen, Jiaming; Kannan, Palanisamy; Zeng, Yanbo; Qiu, Bin; Guo, Longhua; Lin, Zhenyu

doi:10.1007/s00604-019-3357-1

Cited by 18 publications

(12 citation statements)

References 43 publications

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“…For rapid, in situ detection of dopamine, 13 specific sensors and biosensors have been developed. A typical biosensor contains a biological molecule for target recognition such as enzymes, 14 antibodies, 15 or aptamers 16 .…”

Section: Introductionmentioning

confidence: 99%

Biosensors and sensors for dopamine detection

Liu

2020

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176

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Dopamine is a key catecholamine neurotransmitter and it has critical roles in the function of the human central nervous system. Abnormal release of dopamine is related to neurological diseases and depression. Therefore, it is necessary to monitor dopamine levels in vivo and in real time to understand its physiological roles. In this review, we discuss dopamine detection focusing on the molecular recognition methods including enzymes, antibodies, and aptamers, as well as new advances based on nanomaterials and molecularly imprinted polymers (MIPs). A large fraction of these sensors rely on electrochemical detection to fulfill the requirement of fast, in situ, and in vivo detection with a high spatial and temporal resolution. These methods need to overcome interferences from molecules with a similar redox potential. In addition, fluorescent and colorimetric sensors based on aptamers are also quite popular, and care needs to be taken to validate specific dopamine binding. Combining aptamers or MIPs with electrochemistry promises to achieve rapid detection and increased selectivity. In this article, we pay more attention to the molecular recognition mechanism and critically review the sensor designs. In the end, some future directions are discussed.

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Section: Introductionmentioning

confidence: 99%

Biosensors and sensors for dopamine detection

Liu

2020

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176

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“…The relative standard deviation (RSD) was 8.90%, indicating that the approach had good reproducibility. The nicotine content in the collected adsorption solution was calculated by the correlation between SERS intensity and nicotine content, which was reported in our previous work. , Additionally, the nicotine adsorption efficiency of the commercial filter tip and the PDA-decorated filter tip was calculated by eq , and the results are listed in Table . Significantly, compared with the commercial filter tip, the nicotine adsorption efficiency of the PDA-decorated filter tip was increased by 50% due to the large number of functional groups of PDA (Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…After lighting the cigarette, it was smoked at a constant flow rate (1.1 L/ min) and the mainstream smoke was pumped into 1.0 mL of water by an air pump. Subsequently, the obtained cigarette smoke solution was dropped into the gold nanobipyramids (Au NBPs)−AAO substrate, 29 and then the redundant solution on the surface was sucked by a Whatman filter paper (2.0 × 2.0 cm 2 ). After 40 s, surface-enhanced Raman scattering (SERS) analysis was carried out using a handheld Raman spectrometer (Ocean optics, HRS-30, USA, 785 nm).…”

Section: ■ Introductionmentioning

confidence: 99%

Facile Fabrication of a Functional Filter Tip for Highly Efficient Reduction of Nicotine Content in Mainstream Smoke

Lin

Yao

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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The nicotine addiction problem is of great concern, particularly in adolescents. Notably, nicotine addiction drives humans to continue smoking. Notably, several diseases and disorders are caused by smoking. To date, various adsorbents have been proposed to develop a functionalization filter tip for reducing nicotine content in mainstream smoke. However, the nicotine adsorption efficiencies of most of the reported functionalization filter tips were not satisfactory, and their preparation process was complex and time-consuming. Herein, we demonstrate a highly active and adsorbing filter tip for cigarettes, fabricated by decorating polydopamine (PDA) on the surface of a commercial filter tip in situ. The PDA coating on the filter tip was obtained by the self-polymerization of dopamine (DA) within 16 h, which was quicker and easier than the preparation processes of other reported functionalized filter tips. Significantly, the PDA-decorated filter tip had a nicotine adsorption efficiency as high as ∼95%, which was much higher than most of the commercial filter tips.

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“…Fabrication of Au NBPs−AAO Substrate. 25 Gold nanobipyramids (Au NBPs) were prepared with a method reported previously. 26−29 The as-prepared Au NBPs (5.0 mL, ∼2.0 × 10 −9 M) were centrifuged at 10 000 rpm for 10 min to remove TWEEN 20.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

A Facile Approach for On-Site Evaluation of Nicotine in Tobacco and Environmental Tobacco Smoke

et al. 2019

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Nicotine is highly addictive and harmful. It is one of the main active ingredients in tobacco and a major pollutant in environmental tobacco smoke. Thus, it is important to detect the nicotine content in tobacco and to monitor the nicotine content in environmental tobacco smoke. However, until present, there still has been no effective device for on-site determination of nicotine content in tobacco and environmental tobacco smoke. In this work, a portable device is fabricated for sensitive on-site evaluation of nicotine in tobacco and environmental tobacco smoke based on surface-enhanced Raman scattering (SERS). The weight of the entire device is less than 1 kg, and it uses a chargeable battery to drive both the pump and the Raman spectrometer. The total analysis time can be completed within 3–5 min. Thus, it has great potential for on-site analysis of nicotine in tobacco and environmental tobacco smoke.

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Rapid synthesis of a highly active and uniform 3-dimensional SERS substrate for on-spot sensing of dopamine

Cited by 18 publications

References 43 publications

Biosensors and sensors for dopamine detection

Biosensors and sensors for dopamine detection

Facile Fabrication of a Functional Filter Tip for Highly Efficient Reduction of Nicotine Content in Mainstream Smoke

A Facile Approach for On-Site Evaluation of Nicotine in Tobacco and Environmental Tobacco Smoke

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