Photonic glass: novel method for fabrication of volume 2D photonic crystals

2008 ◽  
Author(s):  
Ireneusz Kujawa ◽  
Adam Filipkowski ◽  
Dariusz Pysz ◽  
Florian Hudelist ◽  
Andrew Waddie ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Novel Method ◽  
Photonic Glass

Novel method for fabrication of volume 2D photonic crystals

2008 ◽  
Author(s):  
Ryszard Buczynski ◽  
Ireneusz Kujawa ◽  
Adam Filipkowski ◽  
Dariusz Pysz ◽  
Florian Hudelist ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Novel Method

Ionic strength assay via polyacrylate–ferriferrous oxide magnetic photonic crystals

The Analyst ◽  
2015 ◽  
Vol 140 (10) ◽  
pp. 3368-3374 ◽  
Author(s):  
Yan-Ran Li ◽  
Ye Sun ◽  
He-Fang Wang
Keyword(s):  
Ionic Strength ◽  
Photonic Crystals ◽  
Reflection Spectra ◽  
Novel Method ◽  
Magnetic Photonic Crystals

A novel method for the rapid and sensitive ionic strength assay based on the electrolyte-induced sensitive wavelength blueshifts of the reflection spectra of PA–Fe3O4-MPCs was presented.

Development of novel method to create two-dimensional photonic crystals

2000 ◽  
Author(s):  
Masashi Hase ◽  
Mitsuru Egashira ◽  
Norio Shinya ◽  
Kenji M. Kojima ◽  
Shin-ichi Uchida ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
Novel Method

scholarly journals A Study of the Optical Properties and Fabrication of Coatings Made of Three-Dimensional Photonic Glass

Coatings ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 781
Author(s):  
Chih-Ling Huang
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Silica Nanoparticles ◽  
Self Assembly ◽  
Three Dimensional ◽  
Silica Nanoparticle ◽  
Structural Color ◽  
Nanoparticle Suspension ◽  
Nanosilica Particles ◽  
Photonic Glass

Photonic crystals employ optical properties based on optical, physical, chemical, and material science. Nanosilica particles have a high specific surface area and are widely used in nanotechnology research and biomedical applications. In this study, nanosilica particles were fabricated by sol–gel methods, and the particle sizes of the silica nanoparticles were 280, 232, and 187 nm, based on dynamic light scattering. The silica nanoparticle suspension solution was heated to boiling for fast evaporation processing for self-assembly to fabricate three-dimensional photonic glass for structural color coatings. The sample had an adjustable structural color (red: 640 nm, green: 532 nm, and blue: 432 nm). The microstructures of various structure-colored samples were arranged, but there was a disordered solid arrangement of silica nanoparticles. These were not perfect opal-based photonic crystals. Compared to opal-based photonic crystals, the arrangement of silica nanoparticles was a glassy structure with a short-range order. Due to the accumulation of silica nanoparticle aggregates, samples displayed a stable colloidal film, independent of the viewing angle. In our study, the fast solvent evaporation in the self-assembly process led to the formation of a colloidal amorphous array, and it fitted the requirement for non-iridescence. Non-iridescent photonic glass with various colors was obtained. This type of color coating has wide potential applications, including reflective displays, colorimetric sensors, textiles, and buildings.

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

Longitudinal Changes in Individual BrainAGE in Healthy Aging, Mild Cognitive Impairment, and Alzheimer’s Disease

GeroPsych ◽  
2012 ◽  
Vol 25 (4) ◽  
pp. 235-245 ◽  
Author(s):  
Katja Franke ◽  
Christian Gaser
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Healthy Aging ◽  
Brain Aging ◽  
Elderly Subjects ◽  
Additional Increase ◽  
Longitudinal Changes ◽  
Novel Method ◽  
The Brain

We recently proposed a novel method that aggregates the multidimensional aging pattern across the brain to a single value. This method proved to provide stable and reliable estimates of brain aging – even across different scanners. While investigating longitudinal changes in BrainAGE in about 400 elderly subjects, we discovered that patients with Alzheimer’s disease and subjects who had converted to AD within 3 years showed accelerated brain atrophy by +6 years at baseline. An additional increase in BrainAGE accumulated to a score of about +9 years during follow-up. Accelerated brain aging was related to prospective cognitive decline and disease severity. In conclusion, the BrainAGE framework indicates discrepancies in brain aging and could thus serve as an indicator for cognitive functioning in the future.

Elusive photonic crystals come a step closer

Nature ◽  
2020 ◽  
Vol 585 (7826) ◽  
pp. 506-507
Author(s):  
John C. Crocker
Keyword(s):  
Photonic Crystals
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