Implementation of a Simple Nanostructured Bio-electrode with Immobilized Rhus Vernicifera Laccase for Oxygen Sensing Applications

2017 ◽  
Vol 29 (6) ◽  
pp. 1566-1572 ◽  
Author(s):  
Álvaro Torrinha ◽  
Maria C. B. S. M. Montenegro ◽  
Alberto N. Araújo
RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66384-66390 ◽  
Author(s):  
Chang-Sun Park ◽  
D. B. Mahadik ◽  
Hyung-Ho Park

The structural and gas sensing properties of mesoporous Sr0.9La0.1TiO3 films for oxygen sensing applications were investigated as a function of surfactant concentration.


2005 ◽  
Vol 36 (1) ◽  
pp. 5-10 ◽  
Author(s):  
D. J. Osborn ◽  
Gregory L. Baker ◽  
Ruby N. Ghosh

2020 ◽  
Vol 6 (51) ◽  
pp. eabd1061
Author(s):  
Haley Marks ◽  
Alexandra Bucknor ◽  
Emmanuel Roussakis ◽  
Nicholas Nowell ◽  
Parisa Kamali ◽  
...  

Flaps are common in plastic surgery to reconstruct large tissue defects in cases such as trauma or cancer. However, most tissue oximeters used for monitoring ischemia in postoperative flaps are bulky, wired devices, which hinder direct flap observation. Here, we present the results of a clinical trial using a previously untried paintable transparent phosphorescent bandage to assess the tissue’s partial pressure of oxygen (pO2). Statistical analysis revealed a strong relationship (P < 0.0001) between the rates of change of tissue oxygenation measured by the bandage and blood oxygen saturation (%stO2) readings from a standard-of-care ViOptix near-infrared spectroscopy oximeter. In addition, the oxygen-sensing bandage showed no adverse effects, proved easy handling, and yielded bright images across all skin tones with a digital single-lens reflex (DSLR) camera. This demonstrates the feasibility of using phosphorescent materials to monitor flaps postoperatively and lays the groundwork for future exploration in other tissue oxygen sensing applications.


2008 ◽  
Vol 11 (2) ◽  
pp. 379-387 ◽  
Author(s):  
Edward Eteshola ◽  
Ramasamy P. Pandian ◽  
Stephen C. Lee ◽  
Periannan Kuppusamy

2016 ◽  
Vol 14 (2) ◽  
pp. 164-170 ◽  
Author(s):  
Muthukumaravel Chitra ◽  
Karunakaran Uthayarani ◽  
Narayanasamy Rajasekaran ◽  
Natarajan Neelakandeswari ◽  
Easwaradas Kreedapathy Girija ◽  
...  

2018 ◽  
Vol 5 (1) ◽  
pp. 233-257 ◽  
Author(s):  
Abhishek Chandra ◽  
Man Singh

A green approach to the biosynthesis of amino acid functionalized silver nanoparticles (AgNPs) using Neem gum is reported herein.


2004 ◽  
Vol 96 (1) ◽  
pp. 352-358 ◽  
Author(s):  
Neil S Cherniack

Our concepts of oxygen sensing have been transformed over the years. We now appreciate that oxygen sensing is not a unique property limited to “chemoreceptors” but is a common property of tissues and that responses to changes in oxygen levels are not static but can change over time. Respiratory responses initiated at the carotid body are modified by the excitatory and depressant effects of hypoxia at the brain and on the pathways connecting the carotid body to the brain. Equally important is that we are beginning to use our understanding of the cellular and molecular pathways triggered by hypoxia and hyperoxia to identify therapeutic targets to treat diseases such as cancer. We also have a better understanding of the complexities of the human respiratory responses to hypoxia; however, major deficiencies remain in our ability to alter or even measure human ventilatory responses to oxygen deficiency.


2013 ◽  
Vol 11 (7) ◽  
pp. 1132-1136 ◽  
Author(s):  
Alexander Čeklovský ◽  
Shinsuke Takagi

AbstractThis study was focused on the investigation of novel hybrid organo/inorganic systems for oxygen sensing applications. As a host material, a synthetic clay mineral Sumecton SA was chosen, while, as guest materials, metalloporphyrins containing Pt(II) and Pd(II) were chosen. These are known to be very efficient agents for sensing applications because of a “heavy atom effect”. This effect promotes a spin-orbit coupling, resulting in the fact that almost all of the radiation from a singlet excited state undergoes intersystem crossing, followed by a de-excitation via a triplet state. The combination of metalloporphyrin and layered materials enables unique oxygen sensing properties due to the steric effects of layered materials. The result is that the emission from the membrane was sensitive at the range around aerobic conditions. The spectroscopic analysis of hybrid systems — clay/porphyrin membranes (CPMs) showed that these materials can serve as prospective candidates for the construction of effective, reliable and economical oxygen sensors.


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