Design and tuning of Cr3+-doped near-infrared phosphors for multifunctional applications via crystal field engineering

2022 ◽  
Author(s):  
Shuaishuai Yu ◽  
Zhiting Wei ◽  
Junxiao Wu ◽  
Tianli Wang ◽  
Jia Zhang ◽  
...  
Keyword(s):  
Crystal Field ◽  
Light Source ◽  
Near Infrared ◽  
Source Material ◽  
Broad Application ◽  
Nir Light ◽  
New Type ◽  
Application Prospects

Nowadays, near-infrared (NIR) -emitting luminescence materials with broad application prospects have drawn great attention. SrGa12O19: Cr3+ is a new type of solid light source material that emits NIR light with...

scholarly journals Photothermal Therapy Using Gold Nanorods and Near-Infrared Light in a Murine Melanoma Model Increases Survival and Decreases Tumor Volume

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mary K. Popp ◽  
Imane Oubou ◽  
Colin Shepherd ◽  
Zachary Nager ◽  
Courtney Anderson ◽  
...  
Keyword(s):  
Light Source ◽  
Gold Nanorods ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Tumor Volume ◽  
Infrared Light ◽  
Led Light ◽  
Murine Melanoma ◽  
Nir Light ◽  
Melanoma Model

Photothermal therapy (PTT) treatments have shown strong potential in treating tumors through their ability to target destructive heat preferentially to tumor regions. In this paper we demonstrate that PTT in a murine melanoma model using gold nanorods (GNRs) and near-infrared (NIR) light decreases tumor volume and increases animal survival to an extent that is comparable to the current generation of melanoma drugs. GNRs, in particular, have shown a strong ability to reach ablative temperatures quickly in tumors when exposed to NIR light. The current research tests the efficacy of GNRs PTT in a difficult and fast growing murine melanoma model using a NIR light-emitting diode (LED) light source. LED light sources in the NIR spectrum could provide a safer and more practical approach to photothermal therapy than lasers. We also show that the LED light source can effectively and quickly heatin vitroandin vivomodels to ablative temperatures when combined with GNRs. We anticipate that this approach could have significant implications for human cancer therapy.

Design for New Actuator Based on Electroactive Polymer

2013 ◽  
Vol 579-580 ◽  
pp. 804-807
Author(s):  
Zhong Yao Wu ◽  
Tian Feng Zhao ◽  
Jian Bo Cao ◽  
Shi Ju E ◽  
Chun Xiao Chen
Keyword(s):  
Polymer Material ◽  
Dielectric Elastomer ◽  
Optimal Performance ◽  
Electroactive Polymer ◽  
Good Prospect ◽  
Broad Application ◽  
Design Scheme ◽  
New Type ◽  
Simulation Results ◽  
Application Prospects

Dielectric elastomer is a kind of electroactive polymer material with optimal performance. As actuator material, dielectric elastomer has shown a good prospect. Based on studying the principle of electroactive polymer, a new type of cylindrical actuator was designed. Its 3-D figure and 2-D dimension drawing was finished by UG software. The animation simulation of the actuator was studied. The simulation results verified the feasibility of design scheme. Electroactive polymer will have broad application prospects in the field of actuator.

scholarly journals PbS:Glass as broad-bandwidth near-infrared light source material

2013 ◽  
Vol 21 (2) ◽  
pp. 2287 ◽  
Author(s):  
Fangyu Yue ◽  
Jens W. Tomm ◽  
Detlef Kruschke ◽  
Peter Glas ◽  
Kazbek A. Bzheumikhov ◽  
...  
Keyword(s):  
Light Source ◽  
Near Infrared ◽  
Source Material ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Broad Bandwidth

Near-infrared carbon dot-based platform for bioimaging and photothermal/photodynamic/quaternary ammonium triple synergistic sterilization triggered by single NIR light source

Carbon ◽  
2021 ◽  
Vol 176 ◽  
pp. 126-138
Author(s):  
Xiaohong Chu ◽  
Pan Zhang ◽  
Yuli Wang ◽  
Baohong Sun ◽  
Yihan Liu ◽  
...  
Keyword(s):  
Light Source ◽  
Quaternary Ammonium ◽  
Near Infrared ◽  
Carbon Dot ◽  
Nir Light

scholarly journals Research on Microwave-Assisted Catalytic Persulfate Technology in the Field of Environmental Energy

2021 ◽  
Vol 248 ◽  
pp. 02038
Author(s):  
Hongzhu Xu ◽  
Changbo Li ◽  
Shuo Wang ◽  
Guozheng Zhao ◽  
Hui Liang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Degradation Mechanism ◽  
Degradation Pathways ◽  
Pollutant Degradation ◽  
Excellent Performance ◽  
Environmental Friendliness ◽  
Broad Application ◽  
Microwave Assisted ◽  
New Type ◽  
Application Prospects

Catalytic persulfate technology is a new type of catalytic technology that has been extensively studied in recent years. Among them, the new copper and silver materials synthesized by microwave assist have broad application prospects and are a class of catalysts with excellent performance, environmental friendliness, and stable structure. This article introduces a new type of material loaded with metal copper and silver and activated carbon, analyzes the mechanism of catalytic oxidation, and focuses on summarizing the influencing factors, degradation mechanism, and potential pollutant degradation pathways of this new type of material in water treatment.

Design Research of Linear Motion Unit Based on Magnetic Suspension Principle

2014 ◽  
Vol 945-949 ◽  
pp. 347-350
Author(s):  
Yu Xin Zhao ◽  
Min De Shen ◽  
Xue Hui Shen
Keyword(s):  
Permanent Magnet ◽  
Design Research ◽  
Magnetic Suspension ◽  
Linear Motion ◽  
Broad Application ◽  
Stable Suspension ◽  
Halbach Array ◽  
New Type ◽  
Motion Unit ◽  
Application Prospects

In order to minimize the friction when the linear motion unit in the movement, the new type unit based on permanent magnet was designed. The Halbach Array magnet structure was adopted in the unit. It can realize the stable suspension with the combination of gravitation and repulsion. The new type units have good performance and broad application prospects.

scholarly journals Near-Infrared Organic Phototransistors with Polymeric Channel/Dielectric/Sensing Triple Layers

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1061
Author(s):  
Taehoon Kim ◽  
Chulyeon Lee ◽  
Youngkyoo Kim
Keyword(s):  
Near Infrared ◽  
Layer Structure ◽  
Hole Mobility ◽  
Curve Shape ◽  
Nir Light ◽  
Triple Layer ◽  
New Type ◽  
Channel Mode ◽  
Organic Phototransistor ◽  
20 Nm

A new type of near-infrared (NIR)-sensing organic phototransistor (OPTR) was designed and fabricated by employing a channel/dielectric/sensing (CDS) triple layer structure. The CDS structures were prepared by inserting poly(methyl methacrylate) (PMMA) dielectric layers (DLs) between poly(3-hexylthiophene) (P3HT) channel layers and poly[{2,5-bis-(2-octyldodecyl)-3,6-bis-(thien-2-yl)-pyrrolo[3,4-c]pyrrole-1,4-diyl}-co-{2,2′-(2,1,3-benzothiadiazole)-5,5′-diyl}] (PODTPPD-BT) top sensing layers. Two different thicknesses of PMMA DLs (20 nm and 50 nm) were applied to understand the effect of DL thickness on the sensing performance of devices. Results showed that the NIR-OPTRs with the CDS structures were operated in a typical n-channel mode with a hole mobility of ca. 0.7~3.2 × 10−4 cm2/Vs in the dark and delivered gradually increased photocurrents upon illumination with an NIR light (905 nm). As the NIR light intensity increased, the threshold voltage was noticeably shifted, and the resulting transfer curves showed a saturation tendency in terms of curve shape. The operation of the NIR-OPTRs with the CDS structures was explained by the sensing mechanism that the excitons generated in the PODTPPD-BT top sensing layers could induce charges (holes) in the P3HT channel layers via the PMMA DLs. The optically modulated and reflected NIR light could be successfully detected by the present NIR-OPTRs with the CDS structures.

A novel Cr3+-doped Lu2CaMg2Si3O12 garnet phosphor with broadband emission for near-infrared applications

2021 ◽  
Author(s):  
Wendong Nie ◽  
Liqin Yao ◽  
Guang Chen ◽  
Shihao Wu ◽  
Zhijian Liao ◽  
...  
Keyword(s):  
Plant Growth ◽  
Environmental Science ◽  
Near Infrared ◽  
Light Emitting Diode ◽  
Light Sources ◽  
Light Emitting ◽  
Broad Application ◽  
Led Light ◽  
Broadband Emission ◽  
Application Prospects

The near-infrared (NIR) phosphor-converted light emitting diode (pc-LED) light sources have broad application prospects in environmental science, biomedical and plant growth fields. However, NIR phosphor still suffers from narrowband emission...

scholarly journals Tuning of Graphene-Based Optical Devices Operating in the Near-Infrared

2021 ◽  
Vol 11 (18) ◽  
pp. 8367
Author(s):  
Artem S. Vorobev ◽  
Giuseppe Valerio Bianco ◽  
Giovanni Bruno ◽  
Antonella D’Orazio ◽  
Liam O’Faolain ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Devices ◽  
Infrared Range ◽  
Dielectric Waveguides ◽  
Optical Behaviour ◽  
Excellent Performance ◽  
Broad Application ◽  
Graphene Layers ◽  
Near Infrared Range ◽  
Application Prospects

Graphene is a material with exceptional optical, electrical and physicochemical properties that can be combined with dielectric waveguides. To date, several optical devices based on graphene have been modeled and fabricated operating in the near-infrared range and showing excellent performance and broad application prospects. This paper covers the main aspects of the optical behaviour of graphene and its exploitation as electrodes in several device configurations. The work compares the reported optical devices focusing on the wavelength tuning, showing how it can vary from a few hundred up to a few thousand picometers in the wavelength range of interest. This work could help and lead the design of tunable optical devices with integrated graphene layers that operate in the NIR.

A core/shell/satellite anticancer platform for 808 NIR light-driven multimodal imaging and combined chemo-/photothermal therapy

Nanoscale ◽  
2015 ◽  
Vol 7 (32) ◽  
pp. 13747-13758 ◽  
Author(s):  
Guixin Yang ◽  
Ruichan Lv ◽  
Fei He ◽  
Fengyu Qu ◽  
Shili Gai ◽  
...  
Keyword(s):  
Light Source ◽  
Photothermal Therapy ◽  
Multimodal Imaging ◽  
Near Infrared ◽  
Core Shell ◽  
Nir Light ◽  
Anti Cancer

A novel core/shell/satellite anti-cancer nanoplatform exhibits simultaneous multimodal imaging and synergistic chemo- and photothermal therapy when irradiated by a single 808 nm near infrared (NIR) light source.

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