Modification and miniaturization of Thermochron iButtons for surgical implantation into small animals.

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
Barry G Lovegrove

Abstract

Thermochron iButtons are being used increasingly by animal physiologists to measure long-term patterns of body temperature in reptiles, birds and mammals. Typically, iButtons are surgically implanted into the intraperitoneal cavity where they measure and store body temperature together with the date and time from an onboard real-time clock. In 16-bit resolution, the DS1922L iButton can store a total of 4,096 data points over pre-determined sampling intervals. iButtons have proved invaluable in measuring patterns of torpor and hibernation in animals larger than 70 g. Weighing around 3.5 g after potting with wax, iButtons are too heavy and large to implant into animals smaller than 70 g because their weight exceeds 5% of the animal's total body weight. This paper describes how the stainless steel canister housing the DS 1922L iButton battery and circuit board can be removed to reduce the weight of the components to 1.49 g after waxing (ready for implantation) without compromising the function or battery life of the iButton. The modified iButton can be implanted into animals as small as 20-30 g. Calibration data revealed an offset of ca. 1 degrees C on average, confirming that iButtons must be calibrated prior to implantation.

References

Feb 27, 2003·The Journal of Experimental Biology·Frank SeebacherPhillip L Trosclair
Mar 8, 2003·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·B G Lovegrove
Apr 20, 2004·Physiological and Biochemical Zoology : PBZ·Nomakwezi Mzilikazi, Barry G Lovegrove
Nov 29, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Kelly J Brown, Colleen T Downs
Oct 21, 2006·Folia primatologica; international journal of primatology·Nomakwezi MzilikaziBarry G Lovegrove
Jun 6, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Fritz GeiserGerhard Körtner
Oct 9, 2007·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Mariella Superina, Patrice Boily
Mar 28, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Barry G Lovegrove, Fabien Génin
Jun 5, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·M ScantleburyH Lutermann

❮ Previous
Next ❯

Citations

May 27, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Craig K R WillisTom H Cervone
Oct 24, 2014·Proceedings. Biological Sciences·Barry G LovegroveDanielle L Levesque
Aug 27, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Danielle L LevesqueBarry G Lovegrove
Oct 29, 2010·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·S El OuezzaniM Saboureau
Jun 21, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Barry G LovegroveMark Brown
Jan 25, 2014·Physiological and Biochemical Zoology : PBZ·Barry G LovegroveThomas Ruf
Mar 13, 2014·American Journal of Physical Anthropology·Cynthia L ThompsonChristopher J Vinyard
Jul 12, 2014·International Journal of Biometeorology·Makoto NakayoshiRichard de Dear
May 4, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Cory T WilliamsC Loren Buck
Apr 18, 2015·PLoS Biology·Lauren WalmsleyTimothy M Brown
Mar 9, 2017·Ecology·Evan S Childress, Benjamin H Letcher
Apr 21, 2018·The Journal of Experimental Biology·Josef Virens, Alison Cree
Feb 15, 2020·The Journal of Experimental Biology·Nathan W FullerCraig K R Willis
Mar 14, 2020·The Journal of Experimental Biology·Ewa KomarIreneusz Ruczyński
Jul 9, 2020·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Emily N TaylorRory S Telemeco
Sep 14, 2017·Nature Communications·Alexander C WestDavid A Bechtold
Dec 1, 2020·Temperature : Multidisciplinary Biomedical Journal·Roberto Refinetti
Feb 26, 2021·Journal of Thermal Biology·Amanda D V MacCannell, James F Staples
Aug 21, 2015·The Journal of Experimental Biology·Vincent van der VinneRoelof A Hut
Dec 7, 2013·The Journal of Experimental Biology·Jinhong LuoBjörn M Siemers
May 26, 2021·Proceedings of the National Academy of Sciences of the United States of America·Beatriz Bano-OtaloraRobert J Lucas
Jan 1, 2020·Behavioral Ecology and Sociobiology·Jacob D NegreyKevin E Langergraber
Jun 24, 2021·The Journal of Experimental Biology·Liam P McGuireJustin G Boyles

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2021 Meta ULC. All rights reserved