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Related Concept Videos

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Temperature Measurement Sites01:14

Temperature Measurement Sites

A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
Body Temperature01:07

Body Temperature

Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
Body Temperature01:25

Body Temperature

The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Physical Methods for Controlling Microbial Growth: Temperature01:23

Physical Methods for Controlling Microbial Growth: Temperature

Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...

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Related Experiment Video

Updated: May 15, 2026

A Gusseted Thermogradient Table to Control Soil Temperatures for Evaluating Plant Growth and Monitoring Soil Processes
07:40

A Gusseted Thermogradient Table to Control Soil Temperatures for Evaluating Plant Growth and Monitoring Soil Processes

Published on: October 22, 2016

C59N peapods sensing the temperature.

Yongfeng Li1, Toshiro Kaneko, Rikizo Hatakeyama

  • 1State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Changping District, Beijing 102249, China. liyongfeng2004@yahoo.com.cn

Sensors (Basel, Switzerland)
|January 17, 2013
PubMed
Summary
This summary is machine-generated.

Novel nanodevices made from azafullerene-encapsulated carbon nanotubes exhibit temperature-dependent photoresponse. This discovery suggests their potential use in nanothermometers for precise temperature sensing, especially at low temperatures.

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Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus
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Published on: January 30, 2020

Area of Science:

  • Nanotechnology
  • Materials Science
  • Optoelectronics

Background:

  • Single-walled carbon nanotubes (SWNTs) are widely studied for their unique electronic and mechanical properties.
  • Encapsulating materials within SWNTs, forming structures known as "peapods," can modify their properties.
  • Azafullerenes (C59N) are nitrogen-doped fullerene derivatives with distinct electronic characteristics.

Purpose of the Study:

  • To investigate the photoresponse of azafullerene-encapsulated single-walled carbon nanotubes (C59N@SWNTs).
  • To explore the temperature dependence of the photoconducting properties of these C59N@SWNT nanodevices.
  • To assess the potential of C59N@SWNTs as components for nanothermometers.

Main Methods:

  • Fabrication of nanodevices using C59N@SWNTs.
  • Measurement of photoconducting properties under a field-effect transistor configuration.
  • Systematic temperature-dependent measurements from 10 K to 300 K.

Main Results:

  • A novel photoresponse was observed in C59N@SWNT nanodevices.
  • The photosensitivity of C59N@SWNTs demonstrated a strong and sensitive dependence on temperature.
  • The optoelectronic signal of C59N@SWNTs can be correlated with temperature.

Conclusions:

  • C59N@SWNTs exhibit unique temperature-sensitive optoelectronic properties.
  • These nanodevices are promising candidates for developing nanothermometers across a broad temperature range.
  • Monitoring the optoelectronic signal offers a convenient method for temperature readout, particularly for low-temperature sensing via light pulses.