نتایج جستجو برای: portable nir

تعداد نتایج: 44380  

Journal: :Plant physiology 1992
A Friemann M Lange W Hachtel K Brinkmann

The coordinate appearance of the bispecific NAD(P)H-nitrate reductase (NR; EC 1.6.6.2) and nitrite reductase (NiR; EC 1.7.7.1) was investigated in leaves and roots from European white birch seedlings (Betula pendula Roth). Induction by nitrate and light of both enzymes was analyzed by in vitro assays and by measuring NR- and NiR-encoding mRNA pools with homologous cDNAs as probes. When birch se...

Journal: :Journal of molecular and cellular cardiology 2009
Rong Zhang Yasushi Mio Philip F Pratt Nicole Lohr David C Warltier Harry T Whelan Daling Zhu Elizabeth R Jacobs Meetha Medhora Martin Bienengraeber

Photobiomodulation with near infrared light (NIR) provides cellular protection in various disease models. Previously, infrared light emitted by a low-energy laser has been shown to significantly improve recovery from ischemic injury of the canine heart. The goal of this investigation was to test the hypothesis that NIR (670 nm) from light emitting diodes produces cellular protection against hyp...

2012
Lingling Liu Bo Zhao Yinqiao Zhang Xiaochao Zhang

In this paper, NIR wheat quality quick detection system (NIR-WQDS) was developed on the base of grating technology with a scanning range of 900-1700nm.46 wheat samples were analyzed to compare performance of NIR-WQDS and MPA FT-NIR spectroscopy (MPA). Experiment results of NIR-WQDS show that the coefficient of determination R is 94.44%, root mean square error of cross validation RMSECV is 0.346...

Journal: :IOP conference series 2023

Abstract In the field of failure analysis and in particular molecular particulate contamination, being able to detect any trace contaminants during integration an orbital spacecraft is crucial. this context, fluorescence allows not only but also discriminate contaminants. We studied response two epoxy adhesives, typical sources contamination orbit with a portable broadband hyperspectral instrum...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Shoujun Zhu Qinglai Yang Alexander L Antaris Jingying Yue Zhuoran Ma Huasen Wang Wei Huang Hao Wan Joy Wang Shuo Diao Bo Zhang Xiaoyang Li Yeteng Zhong Kuai Yu Guosong Hong Jian Luo Yongye Liang Hongjie Dai

Fluorescence imaging multiplicity of biological systems is an area of intense focus, currently limited to fluorescence channels in the visible and first near-infrared (NIR-I; ∼700-900 nm) spectral regions. The development of conjugatable fluorophores with longer wavelength emission is highly desired to afford more targeting channels, reduce background autofluorescence, and achieve deeper tissue...

2017
Olena S. Oliinyk Konstantin G. Chernov Vladislav V. Verkhusha

Bacterial photoreceptors absorb light energy and transform it into intracellular signals that regulate metabolism. Bacterial phytochrome photoreceptors (BphPs), some cyanobacteriochromes (CBCRs) and allophycocyanins (APCs) possess the near-infrared (NIR) absorbance spectra that make them promising molecular templates to design NIR fluorescent proteins (FPs) and biosensors for studies in mammali...

2015
Zhanghua Zeng Shin Mizukami Katsumasa Fujita Kazuya Kikuchi

Near-infrared (NIR) fluorescence imaging is promising due to the high penetration depths and minimal levels of autofluorescence in living systems. However, it suffers from low fluorescent quantum yield, and metal-enhanced fluorescence (MEF) is considered to be a promising technique to overcome this. Stimuli-responsive NIR fluorescence enhancement shows remarkable potential for applications in m...

Journal: :Journal of biomedical optics 2011
Tatsuhiko Matsushita Tosiaki Miyati Kazuya Nakayama Takashi Hamaguchi Yoshihiko Hayakawa Allan G Farman Shigeki Ohtake

We developed a novel system for imaging and qualitatively analyzing the surface vessels using near-infrared (NIR) radiation using tuned aperture computed tomography (TACT(®)). The system consisted of a NIR-sensitive CCD camera surrounded by sixty light emitting diodes (with wavelengths alternating between 700 or 810 nm). This system produced thin NIR tomograms, under 0.5 mm in slice thickness. ...

2016
Jane Keating Ryan Judy Andrew Newton Sunil Singhal

BACKGROUND Near-Infrared (NIR) intraoperative molecular imaging is a new diagnostic modality utilized during cancer surgery for the identification of tumors, metastases and lymph nodes. Surgeons typically use headlamps during an operation to increase visible light; however, these light sources are not adapted to function simultaneously with NIR molecular imaging technology. Here, we design a NI...

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