نتایج جستجو برای: ammonia and phosphine nanosensor

تعداد نتایج: 16832948  

2015
Deborah Vidick Xiaoxing Ke Michel Devillers Claude Poleunis Arnaud Delcorte Pietro Moggi Gustaaf Van Tendeloo Sophie Hermans

Heterometal clusters containing Ru and Au, Co and/or Pt are anchored onto carbon nanotubes and nanofibers functionalized with chelating phosphine groups. The cluster anchoring yield is related to the amount of phosphine groups available on the nanocarbon surface. The ligands of the anchored molecular species are then removed by gentle thermal treatment in order to form nanoparticles. In the cas...

Journal: :Analytical chemistry 2017
Yuhui Sun Wen Gao Yujie Zhao Wenhua Cao Zhenhua Liu Guanwei Cui Lili Tong Fengcai Lei Bo Tang

High concentrations of oxidized low density lipoprotein (oxLDL) induce aberrant apoptosis of vascular smooth muscle cells (VSMCs) in atherosclerotic plaques. This apoptosis cannot be blocked completely by the inhibition of caspase, and it eventually potentiates plaque disruption and risk for cardiovascular disease. Given the important role of apoptosis inducing factor (AIF) in caspase-independe...

Journal: :Journal of diabetes science and technology 2013
Mary K Balaconis Heather A Clark

BACKGROUND Fluorescent glucose-sensitive nanosensors have previously been used in vivo to track glucose concentration changes in interstitial fluid. However, this technology was limited because of loss of fluorescence intensity due to particle diffusion from the injection site. In this study, we encapsulated the nanosensors into injectable gels to mitigate nanosensor migration in vivo. ...

Journal: :Advanced Functional Materials 2023

Fusogenic Nanosensor In article number 2214603, Seungjoo Haam, Daesub Song, and co-workers present a fusogenic nanosensor capable of rapidly detecting intact influenza A virus (IAV) by mimicking the cell surface with sialic acid modulating membrane stiffness. By incorporating Förster resonance energy transfer pairs, can directly detect various IAV subtypes, including avian fecal samples, within...

Journal: :Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes 1997
F Eismann D Glindemann A Bergmann P Kuschk

The evolution of phosphine gas during the anaerobic batch fermentation of fresh swine manure was detected and correlated to the production of methane and hydrogen sulphide. A close temporal relationship between phosphine liberation and methane formation was found. However, the gaseous phosphine released from manure during fermentation only represents a tiny fraction of the overall phosphine bal...

Journal: :Journal of environmental sciences 2009
Renbin Zhu Yashu Liu Jianjun Sun Liguang Sun Jinju Geng

Matrix-bound phosphine (MBP) is a general term used to indicate non-gaseous reduced phosphorus compounds that are transformed into phosphine gas upon reaction with bases or acids. Antarctic seabird guanos and ornithogenic soils were used as materials to compare the different digestion methods for transforming matrix-bound phosphine into phosphine gas. The results demonstrated that more phosphin...

2013
Mei Fu Xiuxian Song Zhiming Yu Yun Liu

Phosphine, which is released continuously from sediment, can affect the eco-physiological strategies and molecular responses of phytoplankton. To examine the effects of phosphine on phosphorus uptake and utilization in Thalassiosira pseudonana, we examined the transcriptional level of the phosphate transporter gene (TpPHO) and the activity of alkaline phosphatase (AKP) in relation to supplement...

In this paper, design and performance analysis of a resonance nanosensor for earthquake low frequency geoacoustic waves detection is proposed. The model comprises of a proof mass suspended to the substrate, and a nanobeam attached to the intersection of the proof mass to the substrate. The nanobeam could be cosidered as a clamped-clamped nanoresonator actuated electrostartically. The induced ac...

2015
Jennifer M. Morales Christopher G. Skipwith Heather A. Clark

Dopamine is widely innervated throughout the brain and critical for many cognitive and motor functions. Imbalances or loss in dopamine transmission underlie various psychiatric disorders and degenerative diseases. Research involving cellular studies and disease states would benefit from a tool for measuring dopamine transmission. Here we show a Quadruplex Integrated DNA (QuID) nanosensor platfo...

2015
Nader Shehata Mohamed Azab Ishac Kandas Kathleen Meehan

This paper investigates a nano-enhanced wireless sensing framework for dissolved oxygen (DO). The system integrates a nanosensor that employs cerium oxide (ceria) nanoparticles to monitor the concentration of DO in aqueous media via optical fluorescence quenching. We propose a comprehensive sensing framework with the nanosensor equipped with a digital interface where the sensor output is digiti...

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