Photonic Crystals: Hydrophilic-Hydrophobic Patterned Molecularly Imprinted Photonic Crystal Sensors for High-Sensitive Colorimetric Detection of Tetracycline (Small 23/2015)

Small ◽  
2015 ◽  
Vol 11 (23) ◽  
pp. 2828-2828
Author(s):  
Jue Hou ◽  
Huacheng Zhang ◽  
Qiang Yang ◽  
Mingzhu Li ◽  
Lei Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Colorimetric Detection ◽  
Molecularly Imprinted

Hydrophilic-Hydrophobic Patterned Molecularly Imprinted Photonic Crystal Sensors for High-Sensitive Colorimetric Detection of Tetracycline

Small ◽  
2015 ◽  
Vol 11 (23) ◽  
pp. 2738-2742 ◽  
Author(s):  
Jue Hou ◽  
Huacheng Zhang ◽  
Qiang Yang ◽  
Mingzhu Li ◽  
Lei Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Colorimetric Detection ◽  
Molecularly Imprinted

scholarly journals Integration of bio-responsive silver in 1D photonic crystals: towards the colorimetric detection of bacteria

2020 ◽  
Vol 223 ◽  
pp. 125-135 ◽  
Author(s):  
Giuseppe M. Paternò ◽  
Liliana Moscardi ◽  
Stefano Donini ◽  
Aaron M. Ross ◽  
Silvia M. Pietralunga ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Colorimetric Detection ◽  
E Coli ◽  
1D Photonic Crystal

Colorimetric read-out of a silver/1D photonic crystal upon exposure to E. coli.

A bioinspired poly(N-isopropylacrylamide)/silver nanocomposite as a photonic crystal with both optical and thermal responses

Nanoscale ◽  
2017 ◽  
Vol 9 (35) ◽  
pp. 12969-12975 ◽  
Author(s):  
Xiang Fei ◽  
Tao Lu ◽  
Jun Ma ◽  
Shenmin Zhu ◽  
Di Zhang
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Butterfly Wing ◽  
Silver Nanocomposite

Photonic crystals with both optical and thermal responses based on a natural butterfly wing template.

scholarly journals Colorimetric Sensing of Amoxicillin Facilitated by Molecularly Imprinted Polymers

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2221
Author(s):  
Joseph W Lowdon ◽  
Hanne Diliën ◽  
Bart van Grinsven ◽  
Kasper Eersels ◽  
Thomas J. Cleij
Keyword(s):  
Binding Capacity ◽  
Colorimetric Detection ◽  
Bulk Polymerization ◽  
Colorimetric Sensing ◽  
Initial Development ◽  
Molecularly Imprinted ◽  
Synthetic Receptor ◽  
Displacement Assay ◽  
Size And Morphology ◽  
Task Sets

The scope of the presented research orientates itself towards the development of a Molecularly Imprinted Polymer (MIP)-based dye displacement assay for the colorimetric detection of the antibiotic amoxicillin in aqueous medium. With this in mind, the initial development of an MIP capable of such a task sets focus on monolithic bulk polymerization to assess monomer/crosslinker combinations that have potential towards the binding of amoxicillin. The best performing composition (based on specificity and binding capacity) is utilized in the synthesis of MIP particles by emulsion polymerization, yielding particles that prove to be more homogenous in size and morphology compared to that of the crushed monolithic MIP, which is an essential trait when it comes to the accuracy of the resulting assay. The specificity and selectivity of the emulsion MIP proceeds to be highlighted, demonstrating a higher affinity towards amoxicillin compared to other compounds of the aminopenicillin class (ampicillin and cloxacillin). Conversion of the polymeric receptor is then undertaken, identifying a suitable dye for the displacement assay by means of binding experiments with malachite green, crystal violet, and mordant orange. Once identified, the optimal dye is then loaded onto the synthetic receptor, and the displaceability of the dye deduced by means of a dose response experiment. Alongside the sensitivity, the selectivity of the assay is scrutinized against cloxacillin and ampicillin. Yielding a dye displacement assay that can be used (semi-)quantitatively in a rapid manner.

Photonic Crystal-Embedded Molecularly Imprinted Contact Lenses for Controlled Drug Release

2021 ◽  
Author(s):  
Zhaoran Chu ◽  
Chao Xue ◽  
Kan Shao ◽  
Lanlan Xiang ◽  
Xueling Zhao ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Drug Release ◽  
Contact Lenses ◽  
Controlled Drug Release ◽  
Molecularly Imprinted

Photonic crystals: A platform for label-free and enhanced fluorescence biomolecular and cellular assays

2008 ◽  
Vol 1133 ◽  
Author(s):  
Brian T. Cunningham ◽  
Leo Chan ◽  
Patrick C. Mathias ◽  
Nikhil Ganesh ◽  
Sherine George ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
High Throughput Screening ◽  
High Sensitivity ◽  
Excitation Wavelength ◽  
Label Free ◽  
Crystal Surfaces ◽  
Enhanced Fluorescence ◽  
Preferred Direction ◽  
Label Free Detection

Abstract Photonic crystal surfaces represent a class of resonant optical structures that are capable of supporting high intensity electromagnetic standing waves with near-field and far-field properties that can be exploited for high sensitivity detection of biomolecules and cells. While modulation of the resonant wavelength of a photonic crystal by the dielectric permittivity of adsorbed biomaterials enables label-free detection, the resonance can also be tuned to coincide with the excitation wavelength of common fluorescent tags - including organic molecules and semiconductor quantum dots. Photonic crystals are also capable of efficiently channeling fluorescent emission into a preferred direction for enhanced extraction efficiency. Photonic crystals can be designed to support multiple resonant modes that can perform label free detection, enhanced fluorescence excitation, and enhanced fluorescence extraction simultaneously on the same device. Because photonic crystal surfaces may be inexpensively produced over large surface areas by nanoreplica molding processes, they can be incorporated into disposable labware for applications such as pharmaceutical high throughput screening. In this talk, the optical properties of surface photonic crystals will be reviewed and several applications will be described, including results from screening a 200,000-member chemical compound library for inhibitors of protein-DNA interactions, gene expression microarrays, and high sensitivity of protein biomarkers.

scholarly journals Far-Field Focus and Dispersionless Anticrossing Bands in Two-Dimensional Photonic Crystals

2007 ◽  
Vol 2007 ◽  
pp. 1-8
Author(s):  
Xiaoshuang Chen ◽  
Renlong Zhou ◽  
Yong Zeng ◽  
Hongbo Chen ◽  
Wei Lu
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Far Field ◽  
Two Dimensional ◽  
Surface Polaritons ◽  
Concave Lens ◽  
Bloch Mode ◽  
Two Dimensional Photonic Crystal ◽  
Photonic Band

We review the simulation work for the far-field focus and dispersionless anticrossing bands in two-dimensional (2D) photonic crystals. In a two-dimensional photonic-crystal-based concave lens, the far-field focus of a plane wave is given by the distance between the focusing point and the lens. Strong and good-quality far-field focusing of a transmitted wave, explicitly following the well-known wave-beam negative refraction law, can be achieved. The spatial frequency information of the Bloch mode in multiple Brillouin zones (BZs) is investigated in order to indicate the wave propagation in two different regions. When considering the photonic transmission in a 2D photonic crystal composed of a negative phase-velocity medium (NPVM), it is shown that the dispersionless anticrossing bands are generated by the couplings among the localized surface polaritons of the NPVM rods. The photonic band structures of the NPVM photonic crystals are characterized by a topographical continuous dispersion relationship accompanied by many anticrossing bands.

scholarly journals Optical properties of GaAs 2D Archimedean photonic lattice tiling with the p4g symmetry

2008 ◽  
Vol 40 (2) ◽  
pp. 167-173 ◽  
Author(s):  
Dj. Jovanovic ◽  
R. Gajic ◽  
K. Hingerl
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Group Symmetry ◽  
Electromagnetic Propagation ◽  
Space Group Symmetry ◽  
Space Group ◽  
Left Handedness ◽  
Archimedean Lattice

In this paper we present our investigation of 2D Archimedean lattice photonic crystals with p4g space group symmetry. The structures are made of GaAs both as air holes and dielectric rods in air. In order to analyze the photonic crystal optical properties we performed calculations of the band structures, equi-frequency contours and electromagnetic propagation through the basic structures and waveguides. In addition, we investigated negative refraction and left-handedness in the p4g photonic crystal.

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