S&M Young Researcher Paper Award 2020
Recipients: Ding Jiao, Zao Ni, Jiachou Wang, and Xinxin Li [Winner's comments]
Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
Award Criteria
Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
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Application of Vapor Phase Stimulation Method for Screening of Human Odorant Receptors Responding to Cinnamaldehyde

Yosuke Fukutani, Tomoyo Koshizawa, and Masafumi Yohda

(Received August 15, 2021; Accepted October 29, 2021)

Keywords: odorant receptor, fragrance, vapor stimulation, cinnamon, ligand screening

Flavors consist of a combination of various odor molecules. Animals sense flavor through the responses of multiple odorant receptors (ORs). Previously, we developed a vapor phase stimulation method for the functional analysis of ORs. In this method, odor molecules are supplied through the vapor phase to cells expressing ORs. In the mammalian odorant sensing system, the odor components are transmitted through the air, dissolve into the nasal mucus covering olfactory sensory neuron cells, and then stimulate ORs. Therefore, the vapor stimulation method mimics the authentic olfactory response. We tested this method to identify human ORs that respond to cinnamaldehyde, the main component of cinnamon flavor, as a practical model fragrance. Although there is a lag time required for the dissolution of odor in the buffer, the vapor phase activation method gave almost the same results as the liquid phase activation method. Interestingly, a human OR responded to cinnamaldehyde only in vapor phase activation. The method also worked well with the flavor from cinnamon powder.

Corresponding author: Yosuke Fukutani

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