Rapid Fabrication of Superhydrophilic Micro/Nanostructured Nickel Foam Toward High‐Performance Glucose Sensor

Gao, Xiaohui; Feng, Wenshuai; Zhu, Zhuo; Wu, Zhipeng; Shi, Li; Kan, Shuting; Qiu, Xiaoqing; Guo, Aimin; Chen, Wei; Yin, Kai

doi:10.1002/admi.202002133

Cited by 50 publications

(16 citation statements)

References 66 publications

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“…The as-prepared PTFE film is obtained by a femtosecond laser line-by-line scanning process, and the experimental devices are schematically illustrated in Supporting Information (SI), Figure S1. Femtosecond laser processing has the advantages of no environmental pollution, simple preparation technology, high efficiency, and fast speed. − It can be applied to modify the microstructure and chemical compositions of a material, making it as a convenient technique for diverse applications. − The interaction between the laser beam and the sample readily changes the pristine flat hydrophobic PTFE surface into a hierarchical porous superhydrophobic PTFE surface (Figure c).…”

Section: Methodsmentioning

confidence: 99%

Robust Hierarchical Porous PTFE Film Fabricated via Femtosecond Laser for Self-Cleaning Passive Cooling

Yin

et al. 2021

Nano Lett.

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Passive cooling materials that spontaneously cool an object are promising choices for mitigating the global energy crisis. However, these cooling effects are usually weakened or lost when dust contaminates the surface structure, greatly restricting their applications. In this work, a robust hierarchical porous polytetrafluoroethylene (PTFE) film with coral-like micro/ nanostructures is generated by a facile and efficient femtosecond laser ablation technique. Owing to its unique micro/nanostructures, the as-prepared surface exhibits an outstanding self-cleaning function for various liquids with ultralow adhesion. This selfcleaning characteristic enhances the durability of its passive cooling effect. It is demonstrated that the titanium (Ti) sheet covered with laser-ablated PTFE film can realize a maximum temperature decrease of 4 and 10 °C compared to the Ti sheet covered with pristine PTFE film and uncovered, respectively. This study reveals that femtosecond laser micromachining is a facile and feasible avenue to produce robust self-cleaning passive cooling devices.

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Section: Methodsmentioning

confidence: 99%

Robust Hierarchical Porous PTFE Film Fabricated via Femtosecond Laser for Self-Cleaning Passive Cooling

Yin

et al. 2021

Nano Lett.

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“…In the case of Ni, which exhibits a similar glucose electro-oxidation mechanism to Cu, Ni (II) and Ni (III) couple mediate the glucose redox on the electrode surface. Gao et al [ 189 ] used a femtosecond laser direct writing technique to prepare an Ni foam (NiF). The obtained NiF exhibited a controlled micro and nano superhydrophilicity structure leading to an increased detection area and higher sensitivity (13.822 mA mM −1 cm −2 ) and a detection limit of 0.0019 mM.…”

Section: Recent Developments In Non-enzymatic Glucose Sensorsmentioning

confidence: 99%

Recent Advances in Enzymatic and Non-Enzymatic Electrochemical Glucose Sensing

Hassan

Vyas

Grieve

et al. 2021

Sensors

213

111

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The detection of glucose is crucial in the management of diabetes and other medical conditions but also crucial in a wide range of industries such as food and beverages. The development of glucose sensors in the past century has allowed diabetic patients to effectively manage their disease and has saved lives. First-generation glucose sensors have considerable limitations in sensitivity and selectivity which has spurred the development of more advanced approaches for both the medical and industrial sectors. The wide range of application areas has resulted in a range of materials and fabrication techniques to produce novel glucose sensors that have higher sensitivity and selectivity, lower cost, and are simpler to use. A major focus has been on the development of enzymatic electrochemical sensors, typically using glucose oxidase. However, non-enzymatic approaches using direct electrochemistry of glucose on noble metals are now a viable approach in glucose biosensor design. This review discusses the mechanisms of electrochemical glucose sensing with a focus on the different generations of enzymatic-based sensors, their recent advances, and provides an overview of the next generation of non-enzymatic sensors. Advancements in manufacturing techniques and materials are key in propelling the field of glucose sensing, however, significant limitations remain which are highlighted in this review and requires addressing to obtain a more stable, sensitive, selective, cost efficient, and real-time glucose sensor.

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“…The results of this study are vital for developing processing parameters to mitigate pore formation and therefore improve the mechanical performance and reliability of parts printed using PW-LPBF. In addition, the results of this research may have implications in other areas where pulsated laser is used [ 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 98%

In-Situ Characterization of Pore Formation Dynamics in Pulsed Wave Laser Powder Bed Fusion

et al. 2021

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Laser powder bed fusion (LPBF) is an additive manufacturing technology with the capability of printing complex metal parts directly from digital models. Between two available emission modes employed in LPBF printing systems, pulsed wave (PW) emission provides more control over the heat input compared to continuous wave (CW) emission, which is highly beneficial for printing parts with intricate features. However, parts printed with pulsed wave LPBF (PW-LPBF) commonly contain pores, which degrade their mechanical properties. In this study, we reveal pore formation mechanisms during PW-LPBF in real time by using an in-situ high-speed synchrotron x-ray imaging technique. We found that vapor depression collapse proceeds when the laser irradiation stops within one pulse, resulting in occasional pore formation during PW-LPBF. We also revealed that the melt ejection and rapid melt pool solidification during pulsed-wave laser melting resulted in cavity formation and subsequent formation of a pore pattern in the melted track. The pore formation dynamics revealed here may provide guidance on developing pore elimination approaches.

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Rapid Fabrication of Superhydrophilic Micro/Nanostructured Nickel Foam Toward High‐Performance Glucose Sensor

Cited by 50 publications

References 66 publications

Robust Hierarchical Porous PTFE Film Fabricated via Femtosecond Laser for Self-Cleaning Passive Cooling

Robust Hierarchical Porous PTFE Film Fabricated via Femtosecond Laser for Self-Cleaning Passive Cooling

Recent Advances in Enzymatic and Non-Enzymatic Electrochemical Glucose Sensing

In-Situ Characterization of Pore Formation Dynamics in Pulsed Wave Laser Powder Bed Fusion

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