Global warming is gaining significance as a threat to natural and managed ecosystems since temperature one of the major environmental factors affecting plant productivity. Hence, effects moderate increase on growth development tomato (Lycopersicon esculentum) were investigated.Plants grown at 32/26 degrees C moderately elevated stress (METS) treatment or 28/22 (day/night temperatures) control with light conditions. Vegetative reproductive well sugar content metabolism, proline translocation...

Hybrid functional materials, constituting both inorganic and organic components, are considered potential platforms for applications in extremely diverse fields such as optics, micro-electronics, transportation, health, energy, energy storage, diagnosis, housing, environment the highly relevant area is Internet of Things (IoT). Material properties hybrid materials can be tuned by modification composition on molecular scale to produce smart materials. Cross-cutting approaches, synergistically...

Sensors are considered to be an important vector for sustainable development. The demand meet the needs of future generations is accelerating development intelligent sensor-systems integrated with internet things (IoTs), fifth generation (5G) communication, artificial intelligence (AI) and machine learning (ML) strategies. inclusion 2D nanomaterials IoTs/AI/ML has revolutionized diversified applications sensors in healthcare, wearable electronics, safety, environment, defense, agriculture....

We elucidate why the anomalous high strength of double network gels is obtained when second polymerized without any cross-linkers. have synthesized truly independent-DN (named "t-DN" gels), which do not covalent bonds between first and networks, showed that t-DN cannot be toughened by un-cross-linked network. It means usual DN cross-linker actually achieved interconnection two networks through (so were named "c-DN" gels). Further, we found become stronger than c-DN loosely cross-linked. As a...

4D printing refers to single-material or multi-material of a device object that can be transformed from 1D strand into pre-programed 3D shape, 2D surface preprogramed shape and is capable morphing between different dimensions. Such transformations are facilitated by, e.g., heating, light, swelling in liquid, electrochemically by programming sensitivity to, various parts the designed geometry. These techniques offer adaptability dynamic response for structures systems all sizes, promises new...

Abstract Hydrogel actuators with soft‐robotic functions and biomimetic advanced materials facile programmable fabrication processes remain scarce. A novel approach to fabricating a shape‐memory‐hydrogel‐(SMG)‐based bilayer system using 3D printing yield soft actuator responsive the methodical application of swelling heat is introduced. Each layer composed poly( N , ‐dimethyl acrylamide‐ co ‐stearyl acrylate) (P(DMAAm‐ ‐SA))‐based hydrogels different concentrations crystalline monomer SA...

ADVERTISEMENT RETURN TO ISSUECommunication to the...Communication the EditorNEXTNecking Phenomenon of Double-Network GelsYang-Ho Na, Yoshimi Tanaka, Yasunori Kawauchi, Hidemitsu Furukawa, Takashi Sumiyoshi, Jian Ping Gong, and Yoshihito OsadaView Author Information Graduate School Science, Creative Research Initiative "SOUSEI", Engineering, Hokkaido University, Sapporo 060-810, Japan, SORST, JST, Japan Cite this: Macromolecules 2006, 39, 14, 4641–4645Publication Date (Web):June 16,...

The mechanical strength of double network (DN) gels consisting highly cross-linked poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPS) as the first component and linear polyacrylamide (PAAm) second has been investigated by varying molecular weight polymer PAAm, Mw. experimental results reveal that, for toughening DN gels, (1) Mw is one dominant parameters; (2) there a critical value = 106 remarkable enhancement; (3) fracture energy with larger than reaches high 103 J/m2. By plotting...

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTDirect Observation of Damage Zone around Crack Tips in Double-Network GelsQiu Ming Yu, Yoshimi Tanaka, Hidemitsu Furukawa, Takayuki Kurokawa, and Jian Ping Gong*View Author Information Department Biological Sciences, Graduate School Science, Hokkaido University, N10W8, Sapporo 060-0810, Japan*Corresponding author: Fax 81-11-706-2635; e-mail [email protected]Cite this: Macromolecules 2009, 42, 12,...

Novel hydrogels that possess highly ordered anisotropic structures have been synthesized by controlling the diffusion direction of multivalent ions act as cross-linkers into a semi-rigid polyelectrolyte solution. A double network (DN) technique is then used to form DN gels with excellent mechanical properties, e.g., an extensibility over 2200% original length under uniaxial elongation.

Abstract A reagent-less pH sensor based on disposable and low cost carbon fibre cloth (CFC) is demonstrated for the first time, where tungsten oxide nanoparticles were grown directly onto CFC substrate. For comparison purpose, nanoparticle modified glassy electrode (GCE) was also fabricated as a sensor, hydrothermally synthesized drop casted GCE surface. The corresponding equilibrium potential using oxide/CFC measured open circuit (OCP), found to be linear over range of 3–10, with...

Wide band gap semiconductors such as ZnO are characterized by unique optoelectronic properties, which have led to numerous applications in the field of sensors and optoelectronics. These components commonly fabricated on rigid substrates. However, same synthesis method cannot be used fabricate these flexible In this work, we present a metal–semiconductor–metal ultraviolet photodetectors with nanorods It is observed that overall characteristics nanorod photodetector greatly enhanced doping...

In this study, we synthesized hierarchical CuO nanoleaves in large-quantity via the hydrothermal method. We employed different techniques to characterize morphological, structural, optical properties of as-prepared sample. An electrochemical based nonenzymatic glucose biosensor was fabricated using engineered nanoleaves. The behavior towards analyzed with cyclic voltammetry (CV) and amperometry (i–t) techniques. Owing high electroactive surface area, electrode shows enhanced catalytic for...

Multi-walled carbon nanotubes (MWCNTs) without and with adsorbed silver nanoparticles (Ag-NPs), are used to detect acetone vapour. MWCNTs grown on SiO 2 /Si substrates (Ag) (NPs) deposited onto some of these using electron beam evaporation method. The sensitivity CNT based sensors (with NPs) increases the concentration vapour (50 ppm 800 ppm) while a substantial rise in is obtained from Ag NPs. Band diagrams MWCNTs, NPs, analyzed understand gas molecules adsorption phenomena. This study...

3D food printing sectors require comprehensive knowledge on viscoelastic and mechanical properties of diverse materials in order to effectively utilize them rapid customized production for supply manufacturing chains. In this work, we present rheological Agar Konjac based edible gels at different weight ratio discuss their performance. Gel samples with higher content positively contributed the gel which return has been found viable extrusion-based printing. By choosing appropriate...

The increasing environmental problems as well demand of energy encourage the research for safe efficient sources. As most sources are not consistent; thus, there is a requirement highly storing systems. Supercapacitors emerge with great researcher interest because their very high capacity energy. performance and efficiency supercapacitor depends directly on electrode materials. oxides transition metals explored pseudo capacitors material. Nickel based materials, characterized by ultrahigh...

Emergent application of antimicrobial strategies as symptomatic treatment in coronavirus disease (COVID-19) and linkage severe acute respiratory syndrome coronavirus2 with microbial infections, has created colossal demand for antimicrobials. For the first time, this communication explore physicochemical, antifungal, antibacterial, photocatalytic properties biogenic magnesium nanoparticles (MgNPs), synthesized using essential oil Cymbopogon flexuosus's an efficient multifunctional reducing...

Biofabrication of gold nanoparticles (AuNPs) using the aromatic essential oils is highlighted due to its simple, economical, low toxicity, and eco-friendly nature. Essential oil Cymbopogon flexuosus (CF), an economically valuable medicinal plant, exhibits anti-inflammatory, anti-tumor, antioxidant, antimicrobial activities. For first time, this research accounts for biosynthesis, physicochemical, photocatalytic, antifungal, antibacterial properties biogenic AuNPs, fabricated CF collected...

The double network (DN) gels, composed of a minor component, chemically cross-linked polyelectrolyte (first network), and the major one, linear neutral polymer (second exhibit anomalously high mechanical strengths. In this study, adopting concentration second as experimental parameter, we investigate relation between strength dynamics fluctuation. former is measured by compression tearing tests; latter special dynamic light scattering technique (called SMILS) suitable for gels. enhanced when...

In the previous studies, we have developed double network hydrogels (DN gels) with extra-ordinarily high mechanical strength and toughness although gels contain 90 wt % of water. this study, investigated effect water content on behavior DN gel consists poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPS as first polyacrylamide (PAAm second network. When was dried gradually from its equilibrium swelling state (90 content), it exhibited a ductile very fracture stress strain at an...

Robust bonding of a hydrogel in aqueous environment, either to another or solid, is one the major unsolved issues for practical applications hydrogels various fields. Here we report robust between pair sheets, containing over 90 wt% water, by applying double-network (DN) structure. In optimal condition, peeling energy united gel sheets reaches 1200 J m−2, which comparable bulk fracture normal type tough DN gels. This technique also applied form and plastic plates. Furthermore, based on this...

Abstract We report novel nanoporous polyimides formed from jungle‐gym‐type rigid polyimide gels by supercritical CO 2 drying. By virtue of drying to avoid the collapse nanostructure, porosity above 90 vol.‐% was achieved. found a rich variety structures in range 50–800 nm such as crisp fragments, minute network, and highly‐connected beads. These characteristic were competitive progress liquid‐liquid phase separation crystallization induced due two chemical reactions end‐crosslinking thermal...