Results 191 to 200 of about 14,886 (263)

Rapid dehydration drives a nondiffusional drop in C3 photosynthesis that aligns with phosphate limitation

New Phytologist, EarlyView.
Schematic representation of the causal sequence through which rapid water loss imposes diffusive and nondiffusive restrictions on carbon assimilation. Summary Drought is an abnormally prolonged water deficit posing major challenges to plants. Stomatal closure has long been considered the primary factor limiting photosynthesis during the early stages of
Chandra Bellasio, Daniel Tholen, Hilary Stuart‐Williams, Graham D. Farquhar, Jaume Flexas   +4 more
wiley   +1 more source

Concurrent Measurement of O2 Production and Isoprene Emission During Photosynthesis: Pros, Cons and Metabolic Implications of Responses to Light, CO2 and Temperature

Plant, Cell &Environment, EarlyView.
ABSTRACT Traditional leaf gas exchange experiments have focused on net CO2 exchange (Anet). Here, using California poplar (Populus trichocarpa), we coupled measurements of net oxygen production (NOP), isoprene emissions and δ18O in O2 to traditional CO2/H2O gas exchange with chlorophyll fluorescence, and measured light, CO2 and temperature response ...
Kolby Jeremiah Jardine, Suman Som, Luiza Beraldi Gallo, Jilian Demus, Tomas Ferreira Domingues, Christina Marie Wistrom, Lianhong Gu, Guillaume Tcherkez, Ülo Niinemets   +8 more
wiley   +1 more source

Establishment of a Purge and Trap Continuous‐Flow Isotope Ratio Mass Spectrometer System for Analysis of Stable Nitrate Isotopes (δ15N and δ18O) in Water Samples by Ti(III) Reduction

Rapid Communications in Mass Spectrometry, Volume 40, Issue 14, 30 July 2026.
ABSTRACT Rationale Pollution of surface and shallow groundwater by nitrate (NO3−$$ {\mathrm{NO}}_3^{-} $$) is a global concern, resulting in the deterioration of drinking water quality. Stable isotopes of NO3−$$ {\mathrm{NO}}_3^{-} $$ (δ15N and δ18O) can be used to trace its sources and identify prevailing biogeochemical processes.
Monis Nolitha Gcakasi, Christine Stumpp, Andrea Watzinger   +2 more
wiley   +1 more source

Development of a 3D‐Printed Electrochemical Platform With Dual Working Electrodes for Mesalamine Detection

Analysis &Sensing, Volume 6, Issue 4, July 2026.
This work presents a fully 3D‐printed, low‐cost multiplexed electrochemical platform with dual working electrodes for mesalamine detection. Chemical/electrochemical activation enhances electrode performance, enabling sensitive and reproducible quantification in biological matrices.
Mariana A. de Jesus, Larissa A. Silva, Beatriz F. Germinare, João Pedro C. Silva, Arielly Cardoso, Diego P. Rocha, Rafael M. Dornellas, Jéssica R. Camargo, Bruno C. Janegitz   +8 more
wiley   +1 more source

A Catalyst-Coated Mesoporous Carbon-Membrane Electrode Assembly for In Situ Soft X‑ray XPS and NEXAFS Studies of Electrocatalytic Interfaces. [PDF]

ACS Electrochem
Counter JJC, Kumar S, Zalitis CM, Clapp M, Large AI, Grinter DC, van Spronsen MA, Ferrer P, Karagoz B, Erden TE, Bennett RA, Held G.   +11 more
europepmc   +1 more source

Sulfophenylated centimeter-sized graphene membrane in a direct methanol fuel cell. [PDF]

Nat Commun
Zhang W, Makurat M, Liu X, Chen B, Li Y, Liu X, Kock TJF, Jiao A, Jiang G, Leist C, Maheu C, Sezen H, Calvani D, Eren I, Jiang L, Buda F, Qi H, Hofmann JP, Feng X, Kaiser U, Sun L, Liu Z, Kuc A, Heine T, Schneider GF.   +24 more
europepmc   +1 more source

Advancement in continuous lactate determination in untreated human serum: multipolymer-based amperometric biosensor coupled with a low-cost 3D-printed microfluidic cell. [PDF]

Mikrochim Acta
Sainz-Calvo ÁJ, Sierra-Padilla A, Bellido-Milla D, Blanco-Díaz L, Fernández-Alba JJ, González-Macías C, García-Guzmán JJ, Palacios-Santander JM, Cubillana-Aguilera L.   +8 more
europepmc   +1 more source

Ion Concentration Polarization in Branched Microchannels: Effect of Membrane Thickness and Applied Voltage. [PDF]

Membranes (Basel)
Hirama H, Hayase M.
europepmc   +1 more source

Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. [PDF]

Nanomaterials (Basel)
Wagner T, Tiemann M.
europepmc   +1 more source