Adhesive Hybrid Interpenetrating Network Hydrogel‐Based Detector to Monitor Solar Radiation Dose Required for Plant Growth

Abstract

An adhesive and visualized hydrogel‐based detector is designed to monitor the solar radiation dose required for plant growth by the discoloration of methylene blue (MB) under sunshine. The detector is based on hybrid hydrogels prepared from photoinitiated polymerization. The combination of polypropylene (PP) fabrics acting as a substrate and the photoinitiated polymerization on the graphitic carbon nitride (g‐C3N4) surface enables a smaller thickness and a more homogenous distribution of the g‐C3N4 nanosheets. Thus, the hybrid interpenetrating network (IPN) hydrogel on the PP fabrics with a thickness of 1.5 mm presents an improved photodegradation capability. In addition, better mechanical properties and lower weight of the hydrogel‐based detector are achieved by the presence of the PP fabrics. In combination with the stickiness from a polyurethane resin acting as glue, the obtained detector can be easily pasted on the leaf of a plant as demonstrated for the example of Epipremnum aureum. The radiation dose exposed to the leaves can be accurately traced from the change in color of the detector to ensure a sufficient radiation for plant growth and avoid possible burn to the leaves under sunshine.

CsPbX3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

“…Compared with other luminescent materials, perovskite nanomaterials reveal excellent luminescent properties involving narrow PL spectra, high PLQYs, and tunable PL across the whole visible region. − Although a large number of articles have been reported on the encapsulation of CsPbX 3 (X = Cl, Br, and I) perovskite NCs in organic and inorganic matrixes constructing composite materials possessing high potentials in LED applications, technologies developed based on the utilization of these CsPbX 3 perovskite NCs materials are nevertheless still not mature enough for attaining commercial-scale applications. − For the commercial application of luminescent materials, the perovskite NCs in organic and inorganic matrixes have to retain a narrow size distribution, the initial PLQYs, high stability, and a high weight ratio. In the case of the in situ synthesis of the NCs, topics including size and distribution control, morphology engineering, and PL properties of the NC-based nanocomposites are still not fully understood.…”

Development of Carbon Nanotube/Graphene‐Based Alginate Interpenetrating Hydrogels for Removal of Antibiotic Pollutants

“…Hydrogels with IPN structures can readily attain improved compatibility of different polymer chains as well as increased network density due to their unique interpenetrating motifs. [25][26][27][28] Recently, hybrid IPN hydrogels containing photocatalysts [29][30][31] have been developed for water treatment as they can potentially realize the adsorption and decomposition of pollutants synergistically. In our synthetic strategy, carbodiimide-mediated coupling reactions [32] were first performed between carboxylated CNT and GO to generate a cross-linked nanocarbon network, which afforded a rigid scaffold with rich aromatic surfaces and high porosity.…”

In-Time Detection of Plant Water Status Change by Self-Adhesive, Water-Proof, and Gas-Permeable Electrodes

“…Despite the fact that wearable sensors have been used in monitoring leaf capacitance and other signals, − the adverse effect on plant health status brought by the wearable sensors cannot be ignored. For example, the physiological activities in the plant might be hindered, the concentration of nutrients might decrease, and the appearances of plants (e.g., leaf thickness, leaf color, root number, and stomatal morphology) might show some abnormal changes due to the attachment of the wearable sensors. − It is important to keep normal health status in plants when monitoring their physiological signals, which can ensure detection accuracy and persistent monitoring of these signals . However, previous research did not provide a detailed study to evaluate the effect of wearable sensors on plant health status.…”

“…20−22 It is important to keep normal health status in plants when monitoring their physiological signals, which can ensure detection accuracy and persistent monitoring of these signals. 23 However, previous research did not provide a detailed study to evaluate the effect of wearable sensors on plant health status.…”