Polymer Fiber Optic Sensors – A Mini Review of their Synthesis and Applications

Jin, Yan; Granville, Anthony M.

doi:10.4172/2155-6210.1000194

Cited by 45 publications

(27 citation statements)

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“…Also, in the field of UCNPs, FRET is becoming more and more popular, and many studies have investigated UCNP donors in combination with various acceptors, including organic dyes, [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] fluorescent proteins, [32] and nanoparticles. [33][34][35][36][37][38][39][40] Despite the increasing interest, FRET with UCNPs is far from well understood. Many studies that claim FRET to be the process of energy transfer do not provide any specific FRET investigation.…”

Section: Introductionmentioning

confidence: 99%

Core or Shell? Er³⁺ FRET Donors in Upconversion Nanoparticles

Bhuckory

Hemmer

et al. 2017

Eur J Inorg Chem

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Upconversion nanoparticles (UCNPs) are of high interest for biosensing because of their unique near-infrared-excitation and visible-emission features. An emerging field within UCNP biosensing is the detection of biological interactions through Förster resonance energy transfer (FRET). However, the relatively large size, the distribution of emitting lanthanide ions within the nanoparticle, the unknown photoluminescence (PL) quantum yields (QY) of these emitting ions, and the many available core-shell architectures make the interpretation of UCNPbased FRET data extremely difficult. Here, we present a detailed

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Section: Introductionmentioning

confidence: 99%

Core or Shell? Er³⁺ FRET Donors in Upconversion Nanoparticles

Bhuckory

Hemmer

et al. 2017

Eur J Inorg Chem

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“…Jin and Granville reviewed the recent progress in POF sensors, focusing on intrinsic detection schemes [5]. OFSs can be classified as intrinsic and extrinsic, depending on whether the fiber is interacting with an analyzed medium or if it is used only as a waveguide that allows the propagation of the light to the sensing region, respectively.…”

Section: Introductionmentioning

confidence: 99%

Refractive Index Sensing with D-Shaped Plastic Optical Fibers for Chemical and Biochemical Applications

Sequeira

Duarte

Bilro

et al. 2016

Sensors

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We report the optimization of the length of a D-shaped plastic optical fiber (POF) sensor for refractive index (RI) sensing from a numerical and experimental point of view. The sensing principle is based on total internal reflection (TIR). POFs with 1 mm in diameter were embedded in grooves, realized in planar supports with different lengths, and polished to remove the cladding and part of the core. All D-shaped POF sensors were tested using aqueous medium with different refractive indices (from 1.332 to 1.471) through intensity-based configuration. Results showed two different responses. Considering the refractive index (RI) range (1.33–1.39), the sensitivity and the resolution of the sensor were strongly dependent on the sensing region length. The highest sensitivity (resolution of 6.48 × 10−3 refractive index units, RIU) was obtained with 6 cm sensing length. In the RI range (1.41–1.47), the length of the sensing region was not a critical aspect to obtain the best resolution. These results enable the application of this optical platform for chemical and biochemical evanescent field sensing. The sensor production procedure is very simple, fast, and low-cost.

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“…Finally, AuNPs are being paired with highly specialized and technical detection methods, including quartz crystal microbalance [71,72], evanescent field-coupled waveguide-mode sensors [73], and localized SPR [74,75]. In one example, Jin et al employed a piezoelectric transducer to detect bovine serum albumin coated with aflatoxin using AuNPs as a 'weight label' in order to amplify the signal of the piezo quartz crystal [71].…”

Section: Gold Nanoparticlesmentioning

confidence: 99%