Broadband near-infrared TiO2 dielectric metamaterial absorbers

2019 ◽  
Vol 58 (26) ◽  
pp. 7134 ◽  
Author(s):  
Yanhong Zhu ◽  
Tian Lan ◽  
Pinwei Liu ◽  
Jiaqi Yang
Keyword(s):  
Near Infrared ◽  
Metamaterial Absorbers

Dual-Band Metamaterial Absorbers in the Visible and Near-Infrared Regions

2019 ◽  
Vol 123 (15) ◽  
pp. 10028-10033 ◽  
Author(s):  
Haixia Xu ◽  
Lizhong Hu ◽  
Yanxin Lu ◽  
Jun Xu ◽  
Yihang Chen
Keyword(s):  
Near Infrared ◽  
Dual Band ◽  
Metamaterial Absorbers

Shape-dependent absorption characteristics of three-layered metamaterial absorbers at near-infrared

2011 ◽  
Vol 109 (7) ◽  
pp. 074510 ◽  
Author(s):  
Jing Wang ◽  
Yiting Chen ◽  
Jiaming Hao ◽  
Min Yan ◽  
Min Qiu
Keyword(s):  
Near Infrared ◽  
Dependent Absorption ◽  
Metamaterial Absorbers ◽  
Absorption Characteristics

scholarly journals Ultrabroadband metamaterial absorbers from ultraviolet to near-infrared based on multiple resonances for harvesting solar energy

2021 ◽  
Vol 29 (4) ◽  
pp. 6000
Author(s):  
He Feng ◽  
Xiaoman Li ◽  
Mei Wang ◽  
Feng Xia ◽  
Kun Zhang ◽  
...  
Keyword(s):  
Solar Energy ◽  
Near Infrared ◽  
Metamaterial Absorbers ◽  
Multiple Resonances

scholarly journals Broadband near-infrared metamaterial absorbers utilizing highly lossy metals

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Fei Ding ◽  
Jin Dai ◽  
Yiting Chen ◽  
Jianfei Zhu ◽  
Yi Jin ◽  
...  
Keyword(s):  
Near Infrared ◽  
Metamaterial Absorbers

Construction of a near-infrared responsive upconversion nanoplatform against hypoxic tumors via NO-enhanced photodynamic therapy

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7875-7887 ◽  
Author(s):  
Ying Lan ◽  
Xiaohui Zhu ◽  
Ming Tang ◽  
Yihan Wu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Near Infrared ◽  
Upconversion Nanoparticles

A near-infrared (NIR) activated theranostic nanoplatform based on upconversion nanoparticles (UCNPs) is developed in order to overcome the hypoxia-associated resistance in photodynamic therapy by photo-release of NO upon NIR illumination.

A nitroreductase-activatable near-infrared theranostic photosensitizer for photodynamic therapy under mild hypoxia

2020 ◽  
Vol 56 (43) ◽  
pp. 5819-5822
Author(s):  
Jing Zheng ◽  
Yongzhuo Liu ◽  
Fengling Song ◽  
Long Jiao ◽  
Yingnan Wu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Triplet State ◽  
Near Infrared ◽  
Mild Hypoxia

In this study, a near-infrared (NIR) theranostic photosensitizer was developed based on a heptamethine aminocyanine dye with a long-lived triplet state.

Fluorescent proteins for in vivo imaging, where's the biliverdin?

2020 ◽  
Vol 48 (6) ◽  
pp. 2657-2667
Author(s):  
Felipe Montecinos-Franjola ◽  
John Y. Lin ◽  
Erik A. Rodriguez
Keyword(s):  
Hydrogen Peroxide ◽  
In Vivo Imaging ◽  
Near Infrared ◽  
Fluorescent Protein ◽  
Fluorescent Proteins ◽  
Fluorescent Imaging ◽  
Infrared Light ◽  
Red Fluorescent Protein ◽  
Color Palette

Noninvasive fluorescent imaging requires far-red and near-infrared fluorescent proteins for deeper imaging. Near-infrared light penetrates biological tissue with blood vessels due to low absorbance, scattering, and reflection of light and has a greater signal-to-noise due to less autofluorescence. Far-red and near-infrared fluorescent proteins absorb light >600 nm to expand the color palette for imaging multiple biosensors and noninvasive in vivo imaging. The ideal fluorescent proteins are bright, photobleach minimally, express well in the desired cells, do not oligomerize, and generate or incorporate exogenous fluorophores efficiently. Coral-derived red fluorescent proteins require oxygen for fluorophore formation and release two hydrogen peroxide molecules. New fluorescent proteins based on phytochrome and phycobiliproteins use biliverdin IXα as fluorophores, do not require oxygen for maturation to image anaerobic organisms and tumor core, and do not generate hydrogen peroxide. The small Ultra-Red Fluorescent Protein (smURFP) was evolved from a cyanobacterial phycobiliprotein to covalently attach biliverdin as an exogenous fluorophore. The small Ultra-Red Fluorescent Protein is biophysically as bright as the enhanced green fluorescent protein, is exceptionally photostable, used for biosensor development, and visible in living mice. Novel applications of smURFP include in vitro protein diagnostics with attomolar (10−18 M) sensitivity, encapsulation in viral particles, and fluorescent protein nanoparticles. However, the availability of biliverdin limits the fluorescence of biliverdin-attaching fluorescent proteins; hence, extra biliverdin is needed to enhance brightness. New methods for improved biliverdin bioavailability are necessary to develop improved bright far-red and near-infrared fluorescent proteins for noninvasive imaging in vivo.

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