Instrumentation in developing chlorophyll fluorescence biosensing: a review.

Sensors (Basel)

Biosystems Engineering CA, Postgraduate Study Division, Engineering Faculty, Autonomous University of Queretaro, Cerro de las Campanas St, Querétaro 76010, Qro Mexico.

Published: April 2014

AI Article Synopsis

  • Chlorophyll fluorescence refers to the red and far-red light emitted by photosynthetic tissue when excited by light, providing vital information on the health of photosynthetic samples.
  • This article reviews advancements in designing chlorophyll fluorescence sensing systems, detailing processes and instrumentation for evaluating plant conditions.
  • The measurement procedure is divided into two parts: exciting chlorophyll using passive or active methods, and analyzing the fluorescence response with various tools like cameras, photodiodes, and satellites, each varying in cost, resolution, and portability.

Article Abstract

Chlorophyll fluorescence can be defined as the red and far-red light emitted by photosynthetic tissue when it is excited by a light source. This is an important phenomenon which permits investigators to obtain important information about the state of health of a photosynthetic sample. This article reviews the current state of the art knowledge regarding the design of new chlorophyll fluorescence sensing systems, providing appropriate information about processes, instrumentation and electronic devices. These types of systems and applications can be created to determine both comfort conditions and current problems within a given subject. The procedure to measure chlorophyll fluorescence is commonly split into two main parts; the first involves chlorophyll excitation, for which there are passive or active methods. The second part of the procedure is to closely measure the chlorophyll fluorescence response with specialized instrumentation systems. Such systems utilize several methods, each with different characteristics regarding to cost, resolution, ease of processing or portability. These methods for the most part include cameras, photodiodes and satellite images.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478813PMC
http://dx.doi.org/10.3390/s120911853DOI Listing

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