Journal articles: 'Thermosensing'

1

Delker, Carolin, Martijn van Zanten, and Marcel Quint. "Thermosensing Enlightened." Trends in Plant Science 22, no. 3 (March 2017): 185–87. http://dx.doi.org/10.1016/j.tplants.2017.01.007.

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Halder, Swagata, and Manju Bansal. "The effect of mutation in the stem of the MicroROSE thermometer on its thermosensing ability: insights from molecular dynamics simulation studies." RSC Advances 12, no. 19 (2022): 11853–65. http://dx.doi.org/10.1039/d2ra00169a.

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3

Passlick-Deetjen, Jutta, and Eva Bedenbender-Stoll. "Why thermosensing? A primer on thermoregulation." Nephrology Dialysis Transplantation 20, no. 9 (July 5, 2005): 1784–89. http://dx.doi.org/10.1093/ndt/gfh901.

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4

Saita, Emilio A., and Diego de Mendoza. "Thermosensing via transmembrane protein–lipid interactions." Biochimica et Biophysica Acta (BBA) - Biomembranes 1848, no. 9 (September 2015): 1757–64. http://dx.doi.org/10.1016/j.bbamem.2015.04.005.

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Shah, Premal, and Michael A. Gilchrist. "Is Thermosensing Property of RNA Thermometers Unique?" PLoS ONE 5, no. 7 (July 2, 2010): e11308. http://dx.doi.org/10.1371/journal.pone.0011308.

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Inda, María Eugenia, Daniela B. Vazquez, Ariel Fernández, and Larisa E. Cybulski. "Reverse Engineering of a Thermosensing Regulator Switch." Journal of Molecular Biology 431, no. 5 (March 2019): 1016–24. http://dx.doi.org/10.1016/j.jmb.2019.01.025.

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7

Nishiyama, So-ichiro, Shinji Ohno, Noriko Ohta, Yuichi Inoue, Hajime Fukuoka, Akihiko Ishijima, and Ikuro Kawagishi. "Thermosensing Function of the Escherichia coli Redox Sensor Aer." Journal of Bacteriology 192, no. 6 (January 22, 2010): 1740–43. http://dx.doi.org/10.1128/jb.01219-09.

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ABSTRACT Escherichia coli chemoreceptors can sense changes in temperature for thermotaxis. Here we found that the aerotaxis transducer Aer, a homolog of chemoreceptors lacking a periplasmic domain, mediates thermoresponses. We propose that thermosensing by the chemoreceptors is a general attribute of their highly conserved cytoplasmic domain (or their less conserved transmembrane domain).

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Steinmann, Rebekka, and Petra Dersch. "Thermosensing to adjust bacterial virulence in a fluctuating environment." Future Microbiology 8, no. 1 (January 2013): 85–105. http://dx.doi.org/10.2217/fmb.12.129.

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9

Nara, T., L. Lee, and Y. Imae. "Thermosensing ability of Trg and Tap chemoreceptors in Escherichia coli." Journal of Bacteriology 173, no. 3 (1991): 1120–24. http://dx.doi.org/10.1128/jb.173.3.1120-1124.1991.

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10

Siemens, Jan, and Gretel B. Kamm. "Cellular populations and thermosensing mechanisms of the hypothalamic thermoregulatory center." Pflügers Archiv - European Journal of Physiology 470, no. 5 (January 27, 2018): 809–22. http://dx.doi.org/10.1007/s00424-017-2101-0.

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11

Lee, L., T. Mizuno, and Y. Imae. "Thermosensing properties of Escherichia coli tsr mutants defective in serine chemoreception." Journal of Bacteriology 170, no. 10 (1988): 4769–74. http://dx.doi.org/10.1128/jb.170.10.4769-4774.1988.

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12

Inda, María Eugenia, Michel Vandenbranden, Ariel Fernández, Diego de Mendoza, Jean-Marie Ruysschaert, and Larisa Estefanía Cybulski. "A lipid-mediated conformational switch modulates the thermosensing activity of DesK." Proceedings of the National Academy of Sciences 111, no. 9 (February 12, 2014): 3579–84. http://dx.doi.org/10.1073/pnas.1317147111.

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13

Lee, Chan-Gi, Masato Uehara, Yoshiko Yamaguchi, Hiroyuki Nakamura, and Hideaki Maeda. "Micro-Space Synthesis of Core–Shell-Type Semiconductor Nanocrystals for Thermosensing." Bulletin of the Chemical Society of Japan 80, no. 4 (April 15, 2007): 794–96. http://dx.doi.org/10.1246/bcsj.80.794.

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14

Belanger-Willoughby, N., V. Linehan, and M. Hirasawa. "Thermosensing mechanisms and their impairment by high-fat diet in orexin neurons." Neuroscience 324 (June 2016): 82–91. http://dx.doi.org/10.1016/j.neuroscience.2016.03.003.

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15

Quade, Nick, Chriselle Mendonca, Katharina Herbst, Ann Kathrin Heroven, Christiane Ritter, Dirk W. Heinz, and Petra Dersch. "Structural Basis for Intrinsic Thermosensing by the Master Virulence Regulator RovA ofYersinia." Journal of Biological Chemistry 287, no. 43 (August 30, 2012): 35796–803. http://dx.doi.org/10.1074/jbc.m112.379156.

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16

Yamamoto, Masanori, Yuichi Kitagawa, Takayuki Nakanishi, Koji Fushimi, and Yasuchika Hasegawa. "Ligand-Assisted Back Energy Transfer in Luminescent TbIII Complexes for Thermosensing Properties." Chemistry - A European Journal 24, no. 67 (November 22, 2018): 17719–26. http://dx.doi.org/10.1002/chem.201804392.

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17

Hirose, Tetsuya, Atsushi Hagiwara, Tetsuya Asai, and Yoshihito Amemiya. "A highly sensitive thermosensing CMOS Circuit Based on self-biasing circuit technique." IEEJ Transactions on Electrical and Electronic Engineering 4, no. 2 (March 2009): 278–86. http://dx.doi.org/10.1002/tee.20404.

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18

Fukami, K., N. Nishioka, M. Homma, and I. Kawagishi. "In search of the region involved in thermosensing of the Escherichia coli chemoreceptors." Seibutsu Butsuri 40, supplement (2000): S209. http://dx.doi.org/10.2142/biophys.40.s209_3.

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19

Babailov, S., A. Akulov, M. Moshkin, and I. Koptyug. "Prospects of paramagnetic lanthanide complexes for magnetic resonance imaging, local thermosensing and diagnosing." Journal of Physics: Conference Series 886 (August 2017): 012003. http://dx.doi.org/10.1088/1742-6596/886/1/012003.

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20

Leijon, Sara C. M., Amanda F. Neves, Joseph M. Breza, Sidney A. Simon, Nirupa Chaudhari, and Stephen D. Roper. "Oral thermosensing by murine trigeminal neurons: modulation by capsaicin, menthol and mustard oil." Journal of Physiology 597, no. 7 (April 2019): 2045–61. http://dx.doi.org/10.1113/jp277385.

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21

Aguilar, P. S. "Molecular basis of thermosensing: a two-component signal transduction thermometer in Bacillus subtilis." EMBO Journal 20, no. 7 (April 2, 2001): 1681–91. http://dx.doi.org/10.1093/emboj/20.7.1681.

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22

Kim, Eun Jin, Hyoung IL Kwon, Un Cheol Yeo, and Joo Yeon Ko. "Lower face lifting and contouring with a novel internal real-time thermosensing monopolar radiofrequency." Lasers in Medical Science 31, no. 7 (July 7, 2016): 1379–89. http://dx.doi.org/10.1007/s10103-016-1989-5.

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23

Nakamura, Ayano, Yusuke Sato, and Kenji Murakami. "Development and characterization of thermosensing color indicator by pH changes using a temperature-responsive polymer." Colloids and Surfaces A: Physicochemical and Engineering Aspects 697 (September 2024): 134442. http://dx.doi.org/10.1016/j.colsurfa.2024.134442.

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24

Nishiyama, S., T. Nara, M. Homma, Y. Imae, and I. Kawagishi. "Thermosensing properties of mutant aspartate chemoreceptors with methyl-accepting sites replaced singly or multiply by alanine." Journal of bacteriology 179, no. 21 (1997): 6573–80. http://dx.doi.org/10.1128/jb.179.21.6573-6580.1997.

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25

Nakamura, Akira, Kouhei Takumi, and Kunio Miki. "Crystal Structure of a Thermophilic GrpE Protein: Insight into Thermosensing Function for the DnaK Chaperone System." Journal of Molecular Biology 396, no. 4 (March 2010): 1000–1011. http://dx.doi.org/10.1016/j.jmb.2009.12.028.

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26

Eichner, Hannes, Jens Karlsson, Laura Spelmink, Anuj Pathak, Lok-To Sham, Birgitta Henriques-Normark, and Edmund Loh. "RNA thermosensors facilitate Streptococcus pneumoniae and Haemophilus influenzae immune evasion." PLOS Pathogens 17, no. 4 (April 29, 2021): e1009513. http://dx.doi.org/10.1371/journal.ppat.1009513.

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Bacterial meningitis is a major cause of death and disability in children worldwide. Two human restricted respiratory pathogens, Streptococcus pneumoniae and Haemophilus influenzae, are the major causative agents of bacterial meningitis, attributing to 200,000 deaths annually. These pathogens are often part of the nasopharyngeal microflora of healthy carriers. However, what factors elicit them to disseminate and cause invasive diseases, remain unknown. Elevated temperature and fever are hallmarks of inflammation triggered by infections and can act as warning signals to pathogens. Here, we investigate whether these respiratory pathogens can sense environmental temperature to evade host complement-mediated killing. We show that productions of two vital virulence factors and vaccine components, the polysaccharide capsules and factor H binding proteins, are temperature dependent, thus influencing serum/opsonophagocytic killing of the bacteria. We identify and characterise four novel RNA thermosensors in S. pneumoniae and H. influenzae, responsible for capsular biosynthesis and production of factor H binding proteins. Our data suggest that these bacteria might have independently co-evolved thermosensing abilities with different RNA sequences but distinct secondary structures to evade the immune system.

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27

Carrillo, Lucia, Daniel Degreif, and Adam Bertl. "Yeast Based Functional Assays for Identification of Activators/Inhibitors of TRPV1 and Structural Elements Involved in Thermosensing." Biophysical Journal 106, no. 2 (January 2014): 336a. http://dx.doi.org/10.1016/j.bpj.2013.11.1926.

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28

Babailov, Sergey P., Marina A. Polovkova, Evgeny N. Zapolotsky, Gayane A. Kirakosyan, Alexander G. Martynov, and Yulia G. Gorbunova. "Nuclear magnetic resonance thermosensing properties of holmium(III) and thulium(III) tris(tetra-15-crown-5-phthalocyaninato) complexes." Journal of Porphyrins and Phthalocyanines 26, no. 04 (April 2022): 334–39. http://dx.doi.org/10.1142/s1088424622500201.

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Temperature dependences of paramagnetic chemical shifts in NMR spectra of lanthanide tris-phthalocyaninates Ln2[(15C5)4Pc]3 (where [(15C5)4Pc][Formula: see text] is 2,3,9,10,16,17,24,25-tetrakis(15-crown-5)phthalocyaninate dianion, Ln = Ho(III), Tm(III)) have been studied in the physiological temperature range (from 303 to 323 K). The observed maximum temperature sensitivity [Formula: see text]/dT turns out to be 0.25 ppm/K for the signals of the thulium complex and 0.16 ppm/K for the holmium complex. By the example of Tm2[(15C5)4Pc]3, it has been shown that the use of temperature sensitivities normalized to signal half-widths (∣CT∣/[Formula: see text] is expedient to judge the applicability of the observed temperature dependences of LISs of analogous lanthanide complexes (Ln = Tb, Dy, Ho, Tm) for determining temperatures. The investigated kinetically and thermodynamically stable Ln2[(15C5)4Pc]3 complexes can be considered promising for the design of thermosensitive NMR probes for determination of the local temperature in nonpolar solutions.

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Nadgir, Aishwarya, and Ashok H. Sidarai. "Photophysical Investigation of a Benzimidazole Derivative and Its Applications in Selective Detection of Fe3+, Thermosensing and Logic Gates." Journal of Fluorescence 31, no. 5 (July 21, 2021): 1503–12. http://dx.doi.org/10.1007/s10895-021-02790-5.

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30

Nara, Toshifumi, Ikuro Kawagishi, So-ichiro Nishiyama, Michio Homma, and Yasuo Imae. "Modulation of the Thermosensing Profile of theEscherichia coliAspartate Receptor Tar by Covalent Modification of Its Methyl-accepting Sites." Journal of Biological Chemistry 271, no. 30 (July 26, 1996): 17932–36. http://dx.doi.org/10.1074/jbc.271.30.17932.

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31

Calleja, Cesar, Alfonso Torres, Mario Moreno, Pedro Rosales, María Teresa Sanz-Pascual, and Miguel Velázquez. "A microbolometer fabrication process using polymorphous silicon-germanium films (pm-Si x Ge y :H) as thermosensing material." physica status solidi (a) 213, no. 7 (April 23, 2016): 1864–68. http://dx.doi.org/10.1002/pssa.201532983.

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32

Yamada, Shigeyuki, Yizhou Wang, Masato Morita, Qingzhi Zhang, David O’Hagan, Masakazu Nagata, Tomohiro Agou, et al. "Effect of Fluoroalkyl-Substituent in Bistolane-Based Photoluminescent Liquid Crystals on Their Physical Behavior." Crystals 11, no. 4 (April 20, 2021): 450. http://dx.doi.org/10.3390/cryst11040450.

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Photoluminescent liquid crystals (PLLCs) have attracted significant attention owing to their broad applicability in thermosensing and PL switching. Extensive efforts have been made to develop bistolane-based PLLCs containing flexible units at both molecular terminals, and it has been revealed that their PL behavior can switch with the phase transition between the crystalline and LC phases. Although slight modulation of the flexible unit structure dramatically alters the LC and PL behaviors, few studies into the modification of the flexible units have been conducted. With the aim of achieving dynamic changes in their physical behaviors, we developed a family of bistolane derivatives containing a simple alkyl or a fluoroalkyl flexible chain and carried out a detailed systematic evaluation of their physical behaviors. Bistolanes containing a simple alkyl chain showed a nematic LC phase, whereas switching the flexible chain in the bistolane to a fluoroalkyl moiety significantly altered the LC phase to generate a smectic phase. The fluoroalkyl-containing bistolanes displayed a stronger deep blue PL than their corresponding non-fluorinated counterparts, even in the crystalline phase, which was attributed to the construction of rigid molecular aggregates through intermolecular F···H and F···F interactions to suppress non-radiative deactivation.

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33

Jimenez, Ricardo, Mario Moreno, Alfonso Torres, Alfredo Morales, Arturo Ponce, Daniel Ferrusca, Jose Rangel-Magdaleno, Jorge Castro-Ramos, Julio Hernandez-Perez, and Eduardo Cano. "Fabrication of Microbolometer Arrays Based on Polymorphous Silicon–Germanium." Sensors 20, no. 9 (May 9, 2020): 2716. http://dx.doi.org/10.3390/s20092716.

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This work reports the development of arrays of infrared sensors (microbolometers) using a hydrogenated polymorphous silicon–germanium alloy (pm-SixGe1-x:H). Basically, polymorphous semiconductors consist of an amorphous semiconductor matrix with embedded nanocrystals of about 2–3 nm. The pm-SixGe1-x:H alloy studied has a high temperature coefficient of resistance (TCR) of 4.08%/K and conductivity of 1.5 × 10−5 S∙cm−1. Deposition of thermosensing film was made by plasma-enhanced chemical vapor deposition (PECVD) at 200 °C, while the area of the devices is 50 × 50 μm2 with a fill factor of 81%. Finally, an array of 19 × 20 microbolometers was packaged for electrical characterization. Voltage responsivity values were obtained in the range of 4 × 104 V/W and detectivity around 2 × 107 cm∙Hz1/2/W with a polarization current of 70 μA at a chopper frequency of 30 Hz. A minimum value of 2 × 10−10 W/Hz1/2 noise equivalent power was obtained at room temperature. In addition, it was found that all the tested devices responded to incident infrared radiation, proving that the structure and mechanical stability are excellent.

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Yamada, Shigeyuki, Masaya Sato, and Tsutomu Konno. "Synthesis and Characterization of Photoluminescence Liquid Crystals Based on Flexible Chain-Bearing Pentafluorinated Bistolanes." Crystals 10, no. 7 (July 11, 2020): 603. http://dx.doi.org/10.3390/cryst10070603.

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The liquid-crystalline (LC) and photophysical properties of molecules are very sensitive to their electronic and molecular aggregate structures. Herein, to shed light on the structure–property relationships of pentafluorinated bistolane-based photoluminescence (PL) liquid crystals (PLLCs) previously reported by our group, we synthesized pentafluorinated bistolanes with variable flexible chains and evaluated their LC and photophysical properties. The incorporation of an oxygen atom (to afford a 2-methoxyethoxy unit) or an oxygen atom and a methyl group (to afford a 1-methoxyprop-2-oxy unit) into the flexible butoxy chain significantly decreased the temperature of the crystalline-to-LC phase transition, and a chiral nematic phase comprising helical molecular aggregates was observed for the chiral 1-methoxyprop-2-oxy group–bearing bistolane. The synthesized bistolanes exhibited strong blue PL in both solution and crystalline phases; the featuring PL characteristics were maintained in the LC phase (produced by the crystalline-to-LC phase transition) except for a slight PL color change. Thus, it was concluded that the PL behavior of pentafluorinated bistolanes can be modulated by the choice of a suitable flexible chain, and the obtained insights are believed to facilitate the application of PLLCs in thermosensing PL materials.

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35

Babailov, Sergey P., Marina A. Polovkova, Gayane A. Kirakosyan, Alexander G. Martynov, Evgeny N. Zapolotsky, and Yulia G. Gorbunova. "NMR thermosensing properties on binuclear triple-decker complexes of terbium(III) and dysprosium(III) with 15-crown-5-phthalocyanine." Sensors and Actuators A: Physical 331 (November 2021): 112933. http://dx.doi.org/10.1016/j.sna.2021.112933.

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36

Duong, Nancy, Suzanne Osborne, Víctor H. Bustamante, Ana M. Tomljenovic, José L. Puente, and Brian K. Coombes. "Thermosensing Coordinates a Cis-regulatory Module for Transcriptional Activation of the Intracellular Virulence System in Salmonella enterica Serovar Typhimurium." Journal of Biological Chemistry 282, no. 47 (November 2007): 34077–84. http://dx.doi.org/10.1074/jbc.m707352200.

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37

Yamamoto, Masanori, Yuichi Kitagawa, Takayuki Nakanishi, Koji Fushimi, and Yasuchika Hasegawa. "Cover Feature: Ligand-Assisted Back Energy Transfer in Luminescent TbIII Complexes for Thermosensing Properties (Chem. Eur. J. 67/2018)." Chemistry - A European Journal 24, no. 67 (November 22, 2018): 17613. http://dx.doi.org/10.1002/chem.201805539.

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38

Martín, Mariana, and Diego de Mendoza. "Regulation of Bacillus subtilis DesK thermosensor by lipids." Biochemical Journal 451, no. 2 (March 28, 2013): 269–75. http://dx.doi.org/10.1042/bj20121825.

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Temperature sensing is essential for the survival of living cells. The membrane-bound thermosensor DesK from Bacillus subtilis is a key representative of histidine kinases receptors able to remodel membrane lipid composition when the temperature drops below ~30°C. Although the receptor is well studied, a central issue remains: how does the compositional and functional diversity of the surrounding membrane modulate receptor function? Reconstituting full-length DesK into proteoliposomes of well-defined and controlled lipid composition represents a minimal synthetic approach to systematically address this question. Thus DesK has been reconstituted in a variety of phospholipid bilayers and its temperature-regulated autokinase activity determined as function of fatty acyl chain length, lipid head-group structure and phase preference. We show that the head group structure of lipids (both in vitro and in vivo) has little effect on DesK thermosensing, whereas properties determined by the acyl chain of lipids, such as membrane thickness and phase separation into coexisting lipid domains, exert a profound regulatory effect on kinase domain activation at low temperatures. These experiments suggest that the non-polar domain of glycerolipids is essential to regulate the allosteric structural transitions of DesK, by activating the autophosphorylation of the intracellular kinase domain in response to a decrease in temperature.

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39

Fukami, K., M. Homma, and I. Kawagishi. "Changes in thermosensing property of the bacterial receptor Tar by the mutations that alter the interaction between the cytoplasmic methylation helices." Seibutsu Butsuri 39, supplement (1999): S56. http://dx.doi.org/10.2142/biophys.39.s56_3.

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40

Park, Ae Kyung, Seung Min Bong, Jin Ho Moon, and Young Min Chi. "Crystallization and preliminary X-ray crystallographic studies of DesR, a thermosensing response regulator in a two-component signalling system fromStreptococcus pneumoniae." Acta Crystallographica Section F Structural Biology and Crystallization Communications 65, no. 7 (June 27, 2009): 727–29. http://dx.doi.org/10.1107/s1744309109023082.

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41

Nishiyama, So-ichiro, Ichiro N. Maruyama, Michio Homma, and Ikuro Kawagishi. "Inversion of thermosensing property of the bacterial receptor tar by mutations in the second transmembrane region 1 1Edited by I. B. Holland." Journal of Molecular Biology 286, no. 5 (March 1999): 1275–84. http://dx.doi.org/10.1006/jmbi.1999.2555.

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42

Nishiyama, So-ichiro, Masaaki Jinguji, and Ikuro Kawagishi. "3PT185 Thermosensing abilities of the mutant aspartate chemoreceptor Tar lacking the periplasmic domain(The 50th Annual Meeting of the Biophysical Society of Japan)." Seibutsu Butsuri 52, supplement (2012): S173. http://dx.doi.org/10.2142/biophys.52.s173_2.

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Raghavan, R., A. Sage, and H. Ochman. "Genome-Wide Identification of Transcription Start Sites Yields a Novel Thermosensing RNA and New Cyclic AMP Receptor Protein-Regulated Genes in Escherichia coli." Journal of Bacteriology 193, no. 11 (April 1, 2011): 2871–74. http://dx.doi.org/10.1128/jb.00398-11.

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So-ichiro, Nishiyama, Jinguji Masaaki, and Kawagishi Ikuro. "3P227 In search of thermosensing regions of the multimodal sensor Tar(Chemoreception,Poster,The 52th Annual Meeting of the Biophysical Society of Japan(BSJ2014))." Seibutsu Butsuri 54, supplement1-2 (2014): S286. http://dx.doi.org/10.2142/biophys.54.s286_5.

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Kosarev, Andrey, Alfonso Torres, Mario Moreno, and Roberto Ambrosio. "Thin film uncooled microbolometers based on plasma deposited materials." Canadian Journal of Physics 92, no. 7/8 (July 2014): 570–75. http://dx.doi.org/10.1139/cjp-2013-0567.

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We make a summary of our research and development efforts made about microbolometers (MBs) based on plasma-enhanced chemical vapor deposition (PECVD) materials, like noncrystalline semiconductors that provide high temperature coefficient of resistivity values, in conjunction with SiOx and SiNx dielectrics used for thermoisolation, which, together with micromachining, are paving new ways for fabrication of MBs, making them promising for 2D imagers in both infrared and tera-Hertz regions. We studied a-Si:H(B), a-Ge:H, a-GeSi:H, and polymorphous p-Ge:H, p-SiGe:H as thermosensing materials (TSMs) for MBs in “bridge” configuration with “planar” and “sandwich” electrodes. This allows placing the read-out circuitry under the bridge, improving use of pixel area. PECVD SiNx films were used as both a support layer and as a coating for improving the response for λ = 8–12 μm. 2D modeling revealed both linear and super linear response to IR intensity. Voltage responsivity RU = (1.2–7) × 105 V/W is observed in both “planar” and “sandwich” MBs. The latter shows current responsivity RI = 0.3–14 A/W higher by about three orders of magnitude than the former. A key issue for any detector is the detectivity. Different TSMs show different noise characteristics. Noise in “sandwich” MBs is several orders of magnitude higher than that in “planar” structures. The best parameters observed with TSM Ge-Si:H are: RU = 7.2 × 105 V/W, RI = 14 A/W voltage and current detectivities [Formula: see text] = 8 × 109 cm Hz1/2W−1 and [Formula: see text] = 4 × 109 cm Hz1/2W−1. Junction structures on top of the “bridge” are also discussed. Finally we describe some reported applications of MBs.

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46

Jimenez, Ricardo, Mario Moreno, Alfonso Torres, Roberto Ambrosio, Aurelio Heredia, and Arturo Ponce. "Reduction of residual stress in polymorphous silicon germanium films and their evaluation in microbolometers." European Physical Journal Applied Physics 89, no. 3 (March 2020): 30101. http://dx.doi.org/10.1051/epjap/2020190245.

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Hydrogenated polymorphous silicon germanium (pm-SixGe1–x:H) thin films were deposited by the PECVD technique at 200 °C. Three compositions were investigated by changing the silane/germane gas mixture. It was found that the temperature coefficient of resistance (TCR) varies from 2.25% K−1 to 4.26% K−1 while the electrical conductivity ranges from 9.1 × 10−6 S cm−1 to 3.7 × 10−3 S cm−1. On the other hand, the residual stress of as-deposited films was highly compressive reaching values of nearly 700 MPa. After a thermal annealing of 3 hours, it was observed an acceptable reduction and a slight change towards tensile stress. A thin film with low residual stress and high TCR was chosen to manufacture test microbolometers in order to assess if the thermosensing properties of pm-SixGe1–x:H were not affected. After fabricating the microbolometers, their structural conditions were evaluated by scanning electron microscopy and it was found that the reduction of stress significantly improved their mechanical stability and reduced the warping of the membranes. Finally, test structures were characterized at a chopper frequency of 30 Hz, with a DC current of 2.5 μA in a vacuum environment of 20 mTorr. Voltage responsivity of 1.9 × 106 V/W, detectivity of 4.4 × 108 cm ∙ Hz1/2/W, NEP of 1 × 10−11 W/Hz1/2, NETD of 18 mK and 2 ms of thermal response time were measured. In summary, we have studied different process conditions to obtain better pm-SixGe1–x:H films in terms of their electrical and mechanical properties. In this sense, the results obtained with microbolometers show that pm-SixGe1–x:H is a very attractive material to develop infrared vision systems with high sensitivity.

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47

Hayes, Scott, Joëlle Schachtschabel, Michael Mishkind, Teun Munnik, and Steven A. Arisz. "Hot topic: Thermosensing in plants." Plant, Cell & Environment, January 5, 2021. http://dx.doi.org/10.1111/pce.13979.

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48

Wu, Junwen, Peng Liu, and Yukun Liu. "Thermosensing and thermal responses in plants." Trends in Biochemical Sciences, August 2023. http://dx.doi.org/10.1016/j.tibs.2023.08.002.

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Ni, Lina, Mason Klein, Kathryn V. Svec, Gonzalo Budelli, Elaine C. Chang, Anggie J. Ferrer, Richard Benton, Aravinthan DT Samuel, and Paul A. Garrity. "The Ionotropic Receptors IR21a and IR25a mediate cool sensing in Drosophila." eLife 5 (April 29, 2016). http://dx.doi.org/10.7554/elife.13254.

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Animals rely on highly sensitive thermoreceptors to seek out optimal temperatures, but the molecular mechanisms of thermosensing are not well understood. The Dorsal Organ Cool Cells (DOCCs) of the Drosophila larva are a set of exceptionally thermosensitive neurons critical for larval cool avoidance. Here, we show that DOCC cool-sensing is mediated by Ionotropic Receptors (IRs), a family of sensory receptors widely studied in invertebrate chemical sensing. We find that two IRs, IR21a and IR25a, are required to mediate DOCC responses to cooling and are required for cool avoidance behavior. Furthermore, we find that ectopic expression of IR21a can confer cool-responsiveness in an Ir25a-dependent manner, suggesting an instructive role for IR21a in thermosensing. Together, these data show that IR family receptors can function together to mediate thermosensation of exquisite sensitivity.

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Noguchi, Minoru, and Yutaka Kodama. "Temperature Sensing in Plants: On the Dawn of Molecular Thermosensor Research." Plant and Cell Physiology, March 26, 2022. http://dx.doi.org/10.1093/pcp/pcac033.

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Abstract Although many studies on plant growth and development focus on the effects of light, a growing number of studies dissect plant responses to temperature and the underlying signaling pathways. The identity of plant thermosensing molecules (thermosensors) acting upstream of the signaling cascades in temperature responses was elusive until recently. During the past six years, a set of plant thermosensors has been discovered, representing a major turning point in the research on plant temperature responses and signaling. Here, we review these newly discovered plant thermosensors, which can be classified as sensors of warmth or cold. We compare between plant thermosensors and those from other organisms and attempt to define the subcellular thermosensing compartments in plants. In addition, we discuss the notion that photoreceptive thermosensors represent a novel class of thermosensors, the roles of which have yet to be described in non-plant systems.

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Journal articles on the topic 'Thermosensing'

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