Ultra-low LOD HO Sensor Based on Synergistic Nernst Potential Effect.

The food processing industry and biomedical science research are relying on the low limit of detection (LOD) for hydrogen peroxide (HO). Organic electrochemical transistors (OECTs) are excellent for biochemical sensing applications due to their excellent signal amplification capability. The paper describes  a way of detecting HO through the use of stacked poly(3,4-ethylenedioxythiophene): bromothymol blue (PEDOT: BTB)/poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) as the semiconducting channel of the OECT.

A wearable enzyme sensor enabled by the floating-gate OECT with poly(benzimidazobenzophenanthroline) as the catalytic layer.

With the advantages of miniaturization, simple device structure, and fast response, the organic electrochemical transistor (OECT) has become an emerging platform for developing wearable enzyme sensors for real-time health monitoring. The floating gate (FG) OECT employs a distinct signal acquisition and amplification structure, mitigating the effects of non-specific physical adsorption during the sensing process and preventing contamination of the electrolyte solution by side reaction products. The current work reports a feasible wearable enzyme sensor using a poly(benzimidazobenzophenanthroline) (BBL)-Nafion-enzyme-Nafion stacking structure as the sensing layer of the FG OECT.

Comparison of photosynthetic responses between haptophyte and diatom under phosphorus limitation.

The diatom and the haptophyte often form blooms in the coastal waters of the South China Sea. commonly dominates in nutrient enrichment coastal waters, whereas . starts flourishing after the diatom blooms when phosphorus (P) is limited.

Blooms of diatom and dinoflagellate associated with nutrient imbalance driven by cycling of nitrogen and phosphorus in anaerobic sediments in Johor Strait (Malaysia).

Coastal eutrophication is one of the pivotal factors driving occurrence of harmful algal blooms (HABs), whose underlying mechanism remained unclear. To better understand the nutrient regime triggering HABs and their formation process, the phytoplankton composition and its response to varying nitrogen (N) and phosphorus (P), physio-chemical parameters in water and sediment in Johor Strait in March 2019 were analyzed. Surface and sub-surface HABs were observed with the main causative species of Skeletonema, Chaetoceros and Karlodinium.

Size-Controlled Polarization Retention and Wall Current in Lithium Niobate Single-Crystal Memories.

Highly conductive domain walls in insulating ferroelectric LiNbO (LNO) single-crystal thin films with atomic smoothness are attractive for use in high-density integration of the ferroelectric domain wall random access memory (DWRAM) because of their excellent reliability and high read currents. However, downscaling of the memory size to the nanoscale could cause poor polarization retention. Understanding the size-dependent electrical performance of a memory cell is therefore crucial.

Degradation of malathion in the solution of acetyl peroxyborate activated by carbonate: Products, kinetics and mechanism.

The degradation process of malathion in the acetyl peroxyborate (APB) solution of different APB/malathion molar ratio and in the carbonate-activated APB (APB/CO) solution of different pH was studied by P NMR technology. In the APB solution, all malathion could be degraded in 47.5 min when the molar ratio of APB/malathion was 60.

Energy-Efficient Ferroelectric Domain Wall Memory with Controlled Domain Switching Dynamics.

High readout domain-wall currents in LiNbO single-crystal nanodevices are attractive because of their application in a ferroelectric domain wall random access memory (DWRAM) to drive a fast memory circuit. However, the wall current at a small read voltage would increase nonlinearly at a much higher write voltage, which could cause high energy consumption. Here, we resolved this problem by controlling the two-step domain forward growth within a ferroelectric mesa-like cell that was formed at the surface of an X-cut LiNbO single crystal.

Identification of Early Salinity Stress-Responsive Proteins in by isobaric tags for relative and absolute quantitation (iTRAQ)-Based Quantitative Proteomic Analysis.

Salt stress is one of the most serious abiotic factors that inhibit plant growth. has been recognized as a model organism for stress response research due to its high capacity to tolerate extreme salt stress. A proteomic approach based on isobaric tags for relative and absolute quantitation (iTRAQ) was used to analyze the proteome of during early response to salt stress and identify the differentially abundant proteins (DAPs).

Di-(2-ethylhexyl) Phthalate Exposure Modulates Antioxidant Enzyme Activity and Gene Expression in Juvenile and Adult Daphnia magna.

Di-(2-ethylhexyl) phthalate (DEHP) is a plasticizer used in the polyvinyl chloride industry worldwide. DEHP exists in the aquatic environments for decades. However, the toxicological effects of DEHP to aquatic organisms have not been adequately researched.

Evolution of photoinduced effects in phase-separated Sm0.5Sr0.5Mn1-yCryO3 thin films.

Systematic study on electrical transport properties has been performed in Sm0.5Sr0.5Mn1-yCryO3 thin films illuminated by the light.

The complete mitochondrial genome of (Neogastropoda: Buccinidae).

In this study, the complete mitogenome of has been determined. The complete mitochondrial genome is 15 265 bp in length, including 13 protein-coding genes, two rRNA genes and 22 tRNA genes. The total base composition is 30.

[Reducing the maize amylopectin content through RNA interference manipulation].

To regulate the biosynthesis of maize starch, gene segment of starch branch enzyme (SBE) in maize was cloned and an expression vector of small interference RNA with the fragment of antisense gene + sense gene (pCJSBE2b, Fig.1) was constructed. The expression vector of pCJSBE2b was transformed into maize inbred lines by using pollen-tube pathway.