A flexible and stretchable photonic crystal film with sensitive structural color-changing properties for spoiled milk detection

Thao, Do Thi Vien; Weng, Wei-Tzu; Hiếu, Nguyễn Văn; Chang, C. J.; Wang, Gou‐Jen

doi:10.1016/j.fochx.2022.100526

Cited by 9 publications

(4 citation statements)

References 41 publications

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“…[196][197][198] To date, many colloidal crystal film-based biosensors have been developed and applied for the sensing of various stimuli, such as temperature, mechanical force, molecule, and ion signals. [69,71,72,74,[199][200][201][202][203][204] For example, Wu and coworkers presented an ultrathin colloidal crystal film for ultrasensitive thermal response. [205] They coated the ZnS nanoparticles with SiO 2 and then employed them to form a colloidal crystal film with a high refractive index and bright structural color.…”

Section: Colloidal Crystal Films For Biosensingmentioning

confidence: 99%

Bioinspired bioassay platforms derived from colloidal crystals with topological shapes

Wang,

Zhang,

Bian

et al. 2023

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Colloidal crystals are materials self‐assembled from the colloidal nanoparticles. Due to the ordered microstructure, they exhibit significant optical properties and have shown huge potential in the field of biosensing. Besides, the unique macroscopic shapes can also play a critical role in the sensing process. Here, we present a comprehensive discussion on the colloidal crystal‐based biosensors with different topological shapes, including the development strategies of currently reported colloidal crystal particles, films, and fibers, and their recent progress in biosensing. In addition, the faced challenges and the possible solutions are also concluded and discussed. We expect this review can enrich the knowledge and encourage the communication of interdisciplinary researchers, thus promoting the further development and practical applications of colloidal crystal‐based biosensors.

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Section: Colloidal Crystal Films For Biosensingmentioning

confidence: 99%

Bioinspired bioassay platforms derived from colloidal crystals with topological shapes

Wang,

Zhang,

Bian

et al. 2023

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“…A plethora of materials have been reported that can mechanically tune the plasmonic resonances. − Among them, poly(dimethylsiloxane) (PDMS), a well-established optically transparent elastomer, is an excellent and soft substrate for reversible mechanochromic effects owing to its elastic, inert, and skin-conformable nature. , Applying external strain leads to a dynamic change in lattice constants and eventually to color shifts in the elastomeric substrate/matrices based on deposited/embedded plasmonic nanostructures such as nanoparticles (NPs), , nano cuboids, silica nanospheres, , and silicon nanowires . However, despite high stretchability and sensitivity, these optical strain sensors are usually designed on isotropically stretchable homogeneous elastomers, which makes them incapable of distinguishing between different stimuli directions.…”

Section: Introductionmentioning

confidence: 99%

Topologically Engineered Strain Redistribution in Elastomeric Substrates for Dually Tunable Anisotropic Plasmomechanical Responses

Nauman,

Khaliq,

Choi

et al. 2024

ACS Appl. Mater. Interfaces

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The prompt visual response is considered to be a highly intuitive tenet among sensors. Therefore, plasmomechanical strain sensors, which exhibit dynamic structural color changes, have recently been developed by using mechanical stimulus-based elastomeric substrates for wearable sensors. However, the reported plasmomechanical strain sensors either lack directional sensitivity or require complex signal processing and device design strategies to ensure anisotropic optical responses. To the best of our knowledge, there have been no reports on utilizing anisotropic mechanical substrates to obtain directional optical responses. Herein, we propose an anisotropic plasmomechanical sensor to distinguish between the applied force direction and the force magnitude. We employ a simple strain-engineered topological elastomer to mechanically transform closely packed metallic nanoparticles (NPs) into anisotropic directional rearrangements depending on the applied force direction. The proposed structure consists of a heterogeneous-modulus elastomer that exhibits a highly direction-dependent Poisson effect owing to the periodically line-patterned local strain redistribution occurring due to the same magnitude of applied external force. Consequently, the reorientation of the selfassembled gold (Au)-NP array manifests dual anisotropy, i.e., force-and polarization-direction-dependent plasmonic coupling. The cost-effectiveness and simple design of our proposed heterogeneous-modulus platform pave the way for numerous optical applications based on dynamic transformation and topological inhomogeneities.

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“…Photonic crystals (PCs) consist of materials with different dielectric constants and are widely used in sensing applications due to their unique optical modulation properties. , PC fluorescence sensors are combinations of fluorescent systems and PC structures. Due to the slow photon effect, at the photonic forbidden band edge, slow photons or light with reduced group velocity can significantly increase the effective optical range length of light.…”

Section: Introductionmentioning

confidence: 99%

Stretchable Photonic Crystal-Assisted Glycoprotein Identification for Ovarian Cancer Diagnosis

Jian,

Chen,

Wei

et al. 2024

Anal. Chem.

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Photonic crystals with specific wavelengths can realize surface-enhanced excitation and emission intensities of fluorophores and enhance the fluorescence signals of fluorescent molecules. Herein, stretchable photonic crystals with good mechanochromic properties provide continuously adjustable forbidden wavelengths by stretching to change the lattice spacing, with reflectance peaks blue-shifted up to 110 nm to match indicators of different wavelengths and produce differentiated optical enhancement effects. Glycoproteins are significantly identified as clinical markers. However, the wide participation of glycoproteins in various life processes poses enormous complexity and critical challenges for rapid, facile, high-throughput, and accurate clinical analysis or health assessment. In this work, we proposed a stretchable photonic crystal-assisted glycoprotein identification approach for early ovarian cancer diagnosis. Stretchable photonic crystals can provide rich optical information to efficiently identify glycoproteins in complex matrices. A double-indicator fluorescence sensor was designed to respond to the protein trunk and oligosaccharide segment of glycoproteins separately for improved recognition accuracy. Seven typical glycoproteins could be discriminated from proteins, saccharides, or mixture interferents. Clinical ovarian cancer samples for early, intermediate, and advanced ovarian cancer and healthy subjects were verified with 100% accuracy. This strategy of stretchable photonic crystal-assisted glycoprotein identification provides an effective method for accurate, rapid ovarian cancer diagnosis and timely clinical treatment.

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A flexible and stretchable photonic crystal film with sensitive structural color-changing properties for spoiled milk detection

Cited by 9 publications

References 41 publications

Bioinspired bioassay platforms derived from colloidal crystals with topological shapes

Bioinspired bioassay platforms derived from colloidal crystals with topological shapes

Topologically Engineered Strain Redistribution in Elastomeric Substrates for Dually Tunable Anisotropic Plasmomechanical Responses

Stretchable Photonic Crystal-Assisted Glycoprotein Identification for Ovarian Cancer Diagnosis

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