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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
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A fluorescent peptoid pH‐sensor
Peptide Science, 2013ABSTRACTPeptoids, N‐substituted glycine oligomers, can adopt stable three‐dimensional structures and have found diverse application as peptide surrogates and as nanomaterials. In this report, we have expanded peptoid function to include pH sensing by coupling pH‐induced peptoid conformational changes with fluorescence intensity changes.
Amelia A, Fuller +2 more
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A differential ISFET pH sensor
2017 IEEE SENSORS, 2017In this paper, we present a simple differential CMOS ISFET based pH sensor. The design uses two different sensing areas. The resulting sensor reduces complexity and power consumption making it suitable for implantable biomedical applications. The design is implemented in a standard 130nm process and the design constraints on sensitivity are explored ...
Mst Shamim Ara Shawkat, Nicole McFarlane
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pH-Sensitive Holographic Sensors
Analytical Chemistry, 2003Holographic sensors for monitoring H+ (pH) have been fabricated from ionizable monomers incorporated into thin, polymeric, hydrogel films which were transformed into volume holograms using a diffusion method coupled with holographic recording, using a frequency doubled Nd:YAG laser (532 nm). Unlike other optical pH sensors, it is possible to tailor the
Alexander J, Marshall +3 more
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Digital fluorescent pH sensors
Chemical Communications, 2009We designed polymeric sensors that created a digital-type fluorescence response to pH variation in an aqueous solution.
Seiichi, Uchiyama, Yumi, Makino
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Journal of Neuroscience Research, 2015
Animals can survive only within a narrow pH range. This requires continual monitoring of environmental and body‐fluid pH. Although a variety of acidic pH sensor molecules have been reported, alkaline pH sensor function is not well understood. This Review describes neuronal alkaline pH sensors, grouped according to whether they monitor extracellular or ...
Takashi, Murayama, Ichiro N, Maruyama
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Animals can survive only within a narrow pH range. This requires continual monitoring of environmental and body‐fluid pH. Although a variety of acidic pH sensor molecules have been reported, alkaline pH sensor function is not well understood. This Review describes neuronal alkaline pH sensors, grouped according to whether they monitor extracellular or ...
Takashi, Murayama, Ichiro N, Maruyama
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Sensors and regulators of intracellular pH
Nature Reviews Molecular Cell Biology, 2009Protons dictate the charge and structure of macromolecules and are used as energy currency by eukaryotic cells. The unique function of individual organelles therefore depends on the establishment and stringent maintenance of a distinct pH. This, in turn, requires a means to sense the prevailing pH and to respond to deviations from the norm with ...
Joseph R, Casey +2 more
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2014
Dynamic photonic structures can be modulated by changing the periodic structure and/or the index of refraction. These dynamic photonic structures allow responsive capability for sensing external stimuli to control the properties of light and act as optical transducers.
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Dynamic photonic structures can be modulated by changing the periodic structure and/or the index of refraction. These dynamic photonic structures allow responsive capability for sensing external stimuli to control the properties of light and act as optical transducers.
openaire +1 more source