Photonic crystal materials and their application in biomedicine

Chen, Huadong; Chen, Yanxiao; Chen, Lili; Lu, Jingya; Dong, Qianqian

doi:10.1080/10717544.2017.1321059

Cited by 45 publications

(22 citation statements)

References 91 publications

(100 reference statements)

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“…An adjustable PBG creates a system with high sensitivity to minor changes in material properties through monitoring of the modified PBG [16]. As such, inverse opal materials are incorporated into a wide variety of disciplines, including optical [17][18][19], energy storage [20,21], biological [22][23][24] and medical fields [25,26]. The novel, repeating structure can act as an optical waveguide [27], a refractive index sensor [28,29], a biosensor for virus detection [25,30], an enhanced material for solar absorption [31,32], the gain medium in lasing materials [33,34] and structured electrode materials in Li-ion batteries [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Filling in the gaps: The nature of light transmission through solvent-filled inverse opal photonic crystals

Lonergan

O’Dwyer

2020

Phys. Rev. Materials

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Understanding the nature of light transmission and the photonic bandgap in inverse opal photonic crystals is essential for linking their optical characteristics to any application. This is especially important when these structures are examined in liquids or solvents. Knowledge of the true correlation between the nature of the inverse opal (IO) photonic bandgap, their structure, and the theories that describe their optical spectra is surprisingly limited compared to colloidal opals or more classical photonic crystal structures. We examined TiO2 and SnO2 IOs in a range of common solvents to solve the conflict between Bragg-Snell theory, optical and physical measurements by a comprehensive angle-resolved light transmission study coupled to microscopy examination of the IO structure. Tuning the position of the photonic bandgap and index contrast by solvent infiltration of each inverse opal requires a modification to the Bragg-Snell theory and the photonic crystal unit cell definition. We also demonstrate experimentally and theroetically that low fill factors are caused by less desne material infilling all interstitial vancancies in the opal template to form an IO. By also including an optical interference condition for inverse opals with an effective refractive index greater than its substrate, and an alternative internal refraction angle in the substrate, angle-resolved transmission spectra for inverse opals are now consistent with physical measurements. This work now allows an accurate correlation between the true response of an IO to the index contrast with a solvent, how an IO is infilled, and the directionality and bandwidth of the photonic bandgap. As control in functional photonic materials becomes more prevalent outside of optics and photonics, such as biosensing and energy storage, for example, a comprehensive and consistent correlation between photonic crystals structures and their primary optical signatures is a fundamental requirement for application.

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Section: Introductionmentioning

confidence: 99%

Filling in the gaps: The nature of light transmission through solvent-filled inverse opal photonic crystals

Lonergan

O’Dwyer

2020

Phys. Rev. Materials

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“…[189] Simply put, PCs are defined as periodic arrangements of dielectric materials, which can control and modulate photons, and they also display distinct structural colors since they exhibit reflection at specific wavelengths due to photonic bandgap when light is interacted. [189,192,193] Recent studies report that carbon-based materials have been integrated with photonic crystals, eventually turning into metamaterials-artificially fabricated materials that can achieve new electromagnetic properties. [194] For instance, graphene-integrated photonic crystals were fabricated by inserting graphene sheets between dielectrics/metallic layers in order to enhance the light coupling at the wavelengths ranging from far-infrared (IR) to the ultraviolet, and also, support the excitation of interband and intraband single particle and collective plasmons in this metamaterial synergy.…”

Section: Photonic Materialsmentioning

confidence: 99%

Carbon‐Based Nanomaterials and Sensing Tools for Wearable Health Monitoring Devices

Erdem

Derin

Shirejini

et al. 2021

Adv Materials Technologies

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In this manner, sensor technologies have garnered great attention in various fields, including biomedicine, [2][3][4][5] environmental monitoring, [6][7][8][9] smart devices, [10] wearable devices, [11] automobile manufacturing [12] since the semiconductor materials and circuits have been developed. In particular, biosensors are powerful and innovative analytical tools that incorporate biological receptors to recognize biological analytes through either physical or chemical transducers. Primarily, bio-receptors are responsible for identifying and capturing target analytes, and the transducer basically translates biological and chemical information into the detectable signals, which are eventually converted into the concentration of the analyte. [13,14] Considering gold standard methods, such as enzyme-linked immunosorbent assay (ELISA) [15] and polymerase chain reaction (PCR)-based strategies, [16] biosensors mostly hold crucial features, such as i) short assay time, [17] ii) affordable tools and reagents, [18] iii) portability, [19] and iv) facile use and minimum user interpretation. [20] Nowadays, the applications of biosensors have been leveraged by the advancements of portable and miniaturized platforms. In particular, over the past years, wearable health monitoring devices have notable impact on continuous and real-time monitoring of health parameters, thereby accelerating the deployment of biosensing strategies to daily lives. Besides, non-invasive and ease-of-collecting information supports the benefits of the wearable systems for enhancing the awareness of individuals and communities. [21][22][23] The special features of the mechanically flexible and stable wearable sensors include remarkable means, such as portability, comfortability, light-weight, non-invasive, and reliable performance. To put it simply, wearable sensors are readily attached to skin or organ surfaces through an adhesive tape [24] or microneedles, [25] and because of such easy integrations, several researchers have focused on developing wearable sensors for real-time health monitoring. A wearable sensor is basically composed of some vital elements, including a flexible base material attached to the skin or an organ, a signal transfer electrode, and a biorecognition element. Recently, researchers have concentrated on creating integrated sensors that are able to measure various parameters simultaneously, such as pressure, temperature,The healthcare system has a drastic paradigm shift from centralized care to home-based and self-monitoring strategies; aiming to reach more individuals, minimize workload in hospitals, and reduce healthcare-associated expenses. Particularly, wearable technologies are garnering considerable interest by tracking physiological parameters through motion and activities, and monitoring biochemical markers from sweat, saliva, and tears. Through their integrations with sensors, microfluidics, and wireless communication systems, they allow physicians, family members, or individuals to monitor multiple parameters withou...

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“…From a historical point of view, the PC, where proposed in the pioneering work of Yablonovitch [ 102 ] and John [ 103 ], aimed to create materials that can manipulate photons in a way that resembles a semiconductor crystal and influences the properties of electrons. Indeed, the shifts in the reflection peak of these 3D photonic structures and the high surface to volume ratio makes them interesting for sensing [ 104 ]. The detection systems for PCs ranges from fluorescence [ 105 ], to enzymatic reactions [ 106 ], to label-free, just by observing the reflection peak change of the structures [ 107 ].…”

Section: Mip Coupled To Photonic Structuresmentioning

confidence: 99%

Molecular Imprinted Polymers Coupled to Photonic Structures in Biosensors: The State of Art

Chiappini

Pasquardini²,

Bossi

2020

Sensors

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Optical sensing, taking advantage of the variety of available optical structures, is a rapidly expanding area. Over recent years, whispering gallery mode resonators, photonic crystals, optical waveguides, optical fibers and surface plasmon resonance have been exploited to devise different optical sensing configurations. In the present review, we report on the state of the art of optical sensing devices based on the aforementioned optical structures and on synthetic receptors prepared by means of the molecular imprinting technology. Molecularly imprinted polymers (MIPs) are polymeric receptors, cheap and robust, with high affinity and selectivity, prepared by a template assisted synthesis. The state of the art of the MIP functionalized optical structures is critically discussed, highlighting the key progresses that enabled the achievement of improved sensing performances, the merits and the limits both in MIP synthetic strategies and in MIP coupling.

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Photonic crystal materials and their application in biomedicine

Cited by 45 publications

References 91 publications

Filling in the gaps: The nature of light transmission through solvent-filled inverse opal photonic crystals

Filling in the gaps: The nature of light transmission through solvent-filled inverse opal photonic crystals

Carbon‐Based Nanomaterials and Sensing Tools for Wearable Health Monitoring Devices

Molecular Imprinted Polymers Coupled to Photonic Structures in Biosensors: The State of Art

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