Real-Time Temperature Sensing Using a Ratiometric Dual Fluorescent Protein Biosensor.
Real-Time Temperature Sensing Using a Ratiometric Dual Fluorescent Protein Biosensor.
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DOI:
10.3390/bios13030338
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发表时间:
2023-03-03
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Accurate temperature control within biological and chemical reaction samples and instrument calibration are essential to the diagnostic, pharmaceutical and chemical industries. This is particularly challenging for microlitre-scale reactions typically used in real-time PCR applications and differential scanning fluorometry. Here, we describe the development of a simple, inexpensive ratiometric dual fluorescent protein temperature biosensor (DFPTB). A combination of cycle three green fluorescent protein and a monomeric red fluorescent protein enabled the quantification of relative temperature changes and the identification of temperature discrepancies across a wide temperature range of 4–70 °C. The maximal sensitivity of 6.7% °C−1 and precision of 0.1 °C were achieved in a biologically relevant temperature range of 25–42 °C in standard phosphate-buffered saline conditions at a pH of 7.2. Good temperature sensitivity was achieved in a variety of biological buffers and pH ranging from 4.8 to 9.1. The DFPTB can be used in either purified or mixed bacteria-encapsulated formats, paving the way for in vitro and in vivo applications for topologically precise temperature measurements.
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DOI:
10.1007/978-1-0716-0163-1_5
发表时间:
2020-01-01
期刊:
TARGETING ENZYMES FOR PHARMACEUTICAL DEVELOPMENT: METHODS AND PROTOCOLS
影响因子:
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作者:
Sorenson, Alanna E.;Schaeffer, Patrick M.
通讯作者:
Schaeffer, Patrick M.
影响因子:
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通讯作者:
Qian, Guodong
影响因子:
4.6
作者:
Maksimov, Eugene G.;Yaroshevich, Igor A.;Stepanov, Alexey, V
通讯作者:
Stepanov, Alexey, V
DOI:
10.3390/s16091488
发表时间:
2016-09-14
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
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通讯作者:
Chu J
影响因子:
4.6
作者:
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通讯作者:
Ip, NY