o 2 optode  (Onset Computer Corporation)

Journal: Current Research in Insect Science

Article Title: Standard metabolic rate variation among New Zealand Orthoptera

doi: 10.1016/j.cris.2024.100092

Figure Lengend Snippet: Bilogarithmic relationships between standard metabolic rate (SMR) and body mass for 15 orthopteran species occurring in New Zealand ( n = 73). A. SMR measured at 4 °C. B. SMR measured at 14 °C. Each symbol shape corresponds to a different insect genus with the species shown in different colours. Raw SMR data was measured in ml O 2 /h and body mass was measured in grams.

Article Snippet: This was sealed with an airtight rubber bung through which an O 2 optode (Ocean Optics Inc., Florida, USA) passed.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Autonomous Surface and Underwater Vehicles as Effective Ecosystem Monitoring and Research Platforms in the Arctic—The Glider Project †

doi: 10.3390/s21206752

Figure Lengend Snippet: Sensors integrated on the gliders for the 2018 LoVe deployment.

Article Snippet: Discontinued (formerly Kongsberg Maritime Contros) , CONTROS HydroFlash ® O 2 optode , Oxygen.

Techniques: Concentration Assay, Fluorescence

Journal: Annals of Botany

Article Title: CO 2 and O 2 dynamics in leaves of aquatic plants with C 3 or CAM photosynthesis – application of a novel CO 2 microsensor

doi: 10.1093/aob/mcy095

Figure Lengend Snippet: Dynamics of CO2 and O2 partial pressures in the sediment inhabited by Lobelia dortmanna and Littorella uniflora kept in a 14 h light and 10 h dark cycle (A) or a 12 h light and 12 h dark cycle (B) but here with two oxygen traces showing different values but overall similar in pattern. The CO2 and O2 microsensors were inserted 3 cm into the sediment half way between two neighbouring plants. Measurements were at 20 °C with the water column maintained at near air equilibrium of both CO2 (16 mmol m–3) and O2 (284 mmol m–3) and with a constant flow velocity of approx. 1–2 mm s–1. The plants were growing in a natural turf with a mixed community of L. dortmanna and L. uniflora; in light, the turf was illuminated with approx. 200 μmol photons m–2 s–1 at canopy height. The same data and additional replicates expressed in porewater concentration units of CO2 and O2 are shown in Supplementary Data Fig. S2.

Article Snippet: Sediment p O 2 was measured ( n = 10) using commercially available needle-embedded O 2 optodes (OXF500PT, Pyro Science GmbH, Aachen, Germany) connected to a REDFLASH meter (MicroOptode Meter, Unisense) and the signal was collected with a frequency of one sample per minute using data acquisition software (SensorTrace Suite 2.8, Unisense).

Techniques: Concentration Assay