Recent advances of microneedles biosensors for plants

Wang, Bingyi; Lu, Huihui; Jiang, Senhao; Gao, Bingbing

doi:10.1007/s00216-023-05003-z

Cited by 7 publications

(2 citation statements)

References 76 publications

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“…The MN patch consists of two parts, and the tip portion includes modified SF and GOx, which can enable itself effectively to aspirate and translocate the glucose once it penetrates tissues by swelling, driving the GOx-based catalysis and inducing H 2 O 2 , and then, the substrate consists of PVA due to its good transparency during swelling and facilely HRP-TMB system integration, which could initiate the cascade chromogenic reaction (Figure ), presenting a facile and accurate visual glucose detection for fruits. It should be noted that the composition of the microneedle would not introduce harmful ingredients during the glucose detection fruit, providing a plant-friendly detection method . These achievements provide an alternative strategy to prepare an improved mechanical and swelling of SF MNs, indicating great potential for SF-associated vision diagnostic devices.…”

Section: Introductionmentioning

confidence: 94%

“…It should be noted that the composition of the microneedle would not introduce harmful ingredients during the glucose detection fruit, providing a plant-friendly detection method. 37 These achievements provide an alternative strategy to prepare an improved mechanical and swelling of SF MNs, indicating great potential for SF-associated vision diagnostic devices.…”

Section: Introductionmentioning

confidence: 99%

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Surfactant-Boosted Silk Fibroin Microneedle Patches for Visual Glucose Detection

Peng,

Liu,

Zheng

et al. 2024

ACS Appl. Polym. Mater.

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Silk fibroin (SF) has demonstrated great potential in diagnostics due to its excellent biocompatibility and biodegradability. Used as microneedles (MNs), SF is a compelling option for constructing an adaptable catalyst diagnostic platform due to its high integration. However, the defective hardness and swelling of SF MNs confine further catalyst-based visional detection. Herein, we present a facile approach involving the β-sheet induction by a nonionic surfactant, Tween 20, posing an on-demand regulation of SF MNs for further visual detection. Compared with the usual nonionic surfactants (Tween 80, PEG, and PEGMSE), Tween 20 demonstrated a remarkable ability to induce β-sheet formation within SF, which subsequently could facilitate the distinctive hardness (>1.06 N/needle) and swelling (60−180%) for SF MNs. Then, the agarose-based glucose model was used for visual detection, and consequently, the glucose oxidase (GOx)-HRP-TMB-integrated SF MN patch demonstrated a significant colorimetric quantitation as glucose concentration within 25−600 mg/dL (R 2 = 0.99304). More generally, the visual detection of glucose in types of fruits revealed the high efficacy and accuracy of the SF MN patch (R 2 = 0.94724), further indicating the advantage of Tween 20-tailored SF MNs as a visual platform. These achievements provide a facile tactic to reach an alternative hardness and swelling regulation by one step for catalyst implanted based SF MNs, further revealing the great potential of SF MNs for visual diagnostic.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%