Gelatinase-responsive photonic crystal membrane for pathogenic bacteria detection and application in vitro health diagnosis

Lu, Zhentan; Zhang, Huan; Huang, Jiangxi; Zhong, Yaping; Wang, Mingqiu; Zhang, Li; Wang, Dong

doi:10.1016/j.bios.2022.114013

Cited by 12 publications

(4 citation statements)

References 46 publications

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“…The nonlinear relationship between reflection peaks and tensile strains was maintained with R 2 = 0.99911 (Figure 7d and Figure 5i). Figure 7e,f shows the reflectance spectra and the nonlinear relationship between reflection peaks and temperatures, where the reflection peaks at 25,27,29,30,31,32,33,35, and 37 °C were 628, 626, 626, 615, 601, 594, 590, 586, and 586 nm, respectively. The reflection peaks of the hydrogel were at 629 nm at 25 °C and 585 nm at 37 °C after 2 months, which remained stable in 50 cycles (Figure S6).…”

Section: Durability Of the Bioderived Composite Hydrogel Sensormentioning

confidence: 99%

“…Based on their unique optical properties and stimulus responsiveness, − the photonic crystals are combined with hydrogels or elastomers for the visualization of physical, − chemical, − and biological stimuli. − Park and Chang designed an all-solid-state electrically tuned photonic crystal sensor with flexibility, and the lattice distance decreased with the increase in voltage and resulted in the blue shift of the structural color, which was attached to the 3D structure for verifying its flexible electrochromic performance. Pan et al prepared a biomimetic Janus structured color film with stable electrical sensing and visual optical sensing performance, which met the needs of flexible stretchable electronic products.…”

Section: Introductionmentioning

confidence: 99%

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Bioderived Composite Hydrogel Sensor: Combining Superstretchability, Moisture Retention, and Temperature Resistance for Strain and Temperature Visualization

Zheng,

Murtaza,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Photonic crystals (PCs) exhibit the ability to adjust their microstructure and structural color in response to environmental stimuli and have been applied in optical manipulation and visual sensing, which showcase dynamic adaptability to changing conditions. In this study, a bioderived composite hydrogel sensor was prepared utilizing fish collagen, acrylamide, N-isopropylacrylamide, and PCs for the dual visualization of strain and temperature. Fish collagen derived from tilapia skin enhanced its mechanical properties with a 1846.29% tensile strain. Glycerol contributed to both moisturization and temperature stability, preserving the material's mechanical integrity even under extreme conditions of 60 and −53 °C. The reflection peak of the sensor exhibited blue shifts of 146 nm with 10% compression and 120 nm with 12% tensile strain. Additionally, the reflection peak experienced a blue shift of 45 nm as the temperature rose from 25 to 37 °C, and this shift remained stable even after 10 cycles. Moreover, the sensor's ability to visualize strain and temperature remained consistent even after a period of 30 days. Given its mechanical robustness, moisture resistance, temperature resilience, and durability, the bioderived composite hydrogel sensor stands as a viable choice for ongoing, prolonged monitoring of strain and temperature in wearable research studies.

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Section: Durability Of the Bioderived Composite Hydrogel Sensormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioderived Composite Hydrogel Sensor: Combining Superstretchability, Moisture Retention, and Temperature Resistance for Strain and Temperature Visualization

Zheng,

Murtaza,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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“…It has been reported that gelatinase activity in infected wound fluid was approximately 23 times higher than in uninfected wounds. [56] In recent years, highsensitivity colorimetric photonic crystal sensors have been developed rapidly and are very suitable as biosensor materials. [57] Gelatin-responsive photonic crystal hydrogels can be used to distinguish P. aeruginosa from E. coli.…”

Section: Bacterial Detection Based On Other Bacterial-secretions Sens...mentioning

confidence: 99%

“…However, since the color change of it is very small when detected for 30 min, its color saturation still needs to be further improved to make it suitable for naked‐eye detection. [ 59 ] ALP, the enzyme responsible for hydrolyzing phosphate (Pi) esters to facilitate the release of inorganic Pi, is present in many bacterial species. Our group has recently developed a supramolecular photonic crystal hydrogel, which can be combined with a smartphone to achieve high‐precision colorimetric detection of ALP.…”

Section: Hydrogel‐based Biosensors For Bacteria Detectionmentioning

confidence: 99%

Hydrogel‐Based Biosensors for Bacterial Infections

Sun,

Ding,

Qin

et al. 2023

Small

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Hydrogels are known to have the advantages such as good biodegradability, biocompatibility, and easy functionalization, making them ideal candidates for biosensors. Hydrogel‐based biosensors that respond to bacteria‐induced microenvironmental changes such as pH, enzymes, antigens, etc., or directly interact with bacterial surface receptors, can be applied for early diagnosis of bacterial infections, providing information for timely treatment while avoiding antibiotic abuse. Furthermore, hydrogel biosensors capable of both bacteria diagnosis and treatment will greatly facilitate the development of point‐of‐care monitoring of bacterial infections. In this review, the recent advancement of hydrogel‐based biosensors for bacterial infection is summarized and discussed. First, the biosensors based on pH‐sensitive hydrogels, bacterial‐specific secretions‐sensitive hydrogels, and hydrogels directly in contact with bacterial surfaces are presented. Next, hydrogel biosensors capable of detecting bacterial infection in the early stage followed by immediate on‐demand treatment are discussed. Finally, the challenges and future development of hydrogel biosensors for bacterial infections are proposed.

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