Hemicellulose and polyphenols present attractive functional potential for the elaboration of biobased materials but their interaction remains scarcely studied. In this study, the interaction behavior of xyloglucan (XG) and tannic acid (TA) was systematically studied over XG concentration ranging from 0.25g/L to 3g/L and TA:XG weight ratio from 0.1 to 10. Three distinct types of assemblies identified as swollen coils, dense beads or aggregated beads were described using a combination of QCM-D, light scattering and thermodynamic characterizations. They differed in size and colloidal behavior, and their formation was primarily governed by hydrophobic interactions and steric repulsions. These findings provide new insights into the molecular mechanisms driving hemicellulose-polyphenol association and highlight their potential in the design of functional, plant-inspired materials.

Tannic acid and carboxymethyl cellulose synergy for high-fidelity 3D printing of fish gelatin: enhanced thermal, mechanical and rheological properties.

Bioengineered extracellular vesicles escape lysosomal degradation and deliver Tet-PKM2 for macrophage immunometabolic reprogramming and periodontitis treatment.

pH-responsive and self-adaptive hydrogel dressing based on a TA/PVA network co-loaded with cannabidiol and mupirocin for synergistic infected wound healing.

Advances on botanicals targeting programmed cell death in acetaminophen-induced liver injury.

Pd/Pt-decorated poly(tannic acid) nanospheres as a multifunctional label for ultrasensitive lateral flow immunoassay of methamphetamine

A systematic study of green wheat kernel starch: Multi-scale structure, physicochemical properties, polyphenol binding and Pickering emulsifying capacities.

Sustainable synthesis of porous carbon materials from tannic acid via in-situ K2CO3 activation for high-performance supercapacitors

Ultrasound-responsive piezoelectric hydrogel attenuates oxidative stress-induced nucleus pulposus senescence via AMPK-FOXO1a-mediated mitophagy for intervertebral disc regeneration.

"All oat!" Optimizing the spray drying process for oat oil emulsions stabilized by cellulose nanocrystals and methylcellulose.

Dynamically cross-linked PVA hydrogel reinforced with poly(γ-glutamic acid) for highly Stretchable and rapidly self-healing wearable sensors.

Fluorescence polarization-based discovery of natural RORγ orthosteric inhibitors.

TiO2 nanoparticle-embedded starch-tannin biocomposites with efficient UV-shielding and ROS elimination as Pickering emulsifier for bio-safe sunscreen.

Shikonin-loaded porous graphdiyne nanofilm on titanium surface for enhanced antibacterial activity and osseointegration.

Hydrogen-bonding network promoted fluorescence in chiral lysine-based carbon dots for ultrasensitive detection of tannic acid in food.

Synergistic modulation of inflammation and angiogenesis by a polyphenol-functionalized MOF nanozyme for enhancing wound closure.

Haemonchosis is a disease caused by the blood-sucking nematode Haemonchus contortus. The present study therefore aimed to analyse the phytochemical compounds present in Erigeron floribundus and evaluate the in vitro anthelmintic efficacy of its aqueous and ethanolic extracts on the parasite. Quantification of condensed tannins and flavonoids was carried out using a spectrophotometer with tannic acid and quercetin, respectively. The E. floribundus extracts were obtained by macerating the plant powder in distilled water and ethanol, respectively. The extracts were then filtered, concentrated in a rotary evaporator at 40°C, and dried. The aqueous and ethanolic extracts were tested on adult female H. contortus, achieving an LC50 of 0.29 ± 0.02mg/mL and 0.17 ± 0.04mg/mL, respectively, after a 24-h incubation period. The aqueous and ethanolic extracts were tested on H. contortus L3 larvae after 24 and 48h of incubation, achieving an LC50 of 1.49 ± 0.28mg/mL and 0.92 ± 0.17mg/mL, respectively. The respective inhibitory concentrations (IC50) for egg hatching were 22 ± 0.013mg/mL and 0.021 ± 0.014mg/mL for the aqueous and ethanolic extracts. Neither the aqueous nor the ethanolic extract of E. floribundus induced any signs of toxicity in mice at a dose of 3000mg/kg. These results demonstrate the effectiveness of plant extracts against H. contortus and their potential as an alternative to synthetic anthelmintics. These in vitro results confirm the traditional medicinal use of E. floribundus.

To address the challenges posed by complex application scenarios, the development of microwave absorbing materials with hydrophobicity and flame retardancy has become a critical direction for next-generation communication technologies. In this study, poly(vinyl alcohol), a metal-polyphenol framework (Co2+-tannic acid), and aramid nanofibers (ANF) were self-assembled into the precursor aerogel through hydrogen and coordination bonds, where ANF enhanced the mechanical robustness. Then, after the carbonization process, porous C/Co aerogels were developed. The magnetic properties and graphitization degree of the C/Co aerogels were precisely tailored by modulating carbonization temperatures, enabling tunable microwave absorption performance. The C/Co aerogel carbonized at 800 °C achieved a minimum reflection loss (RLmin) of -65.2 dB at 2.48 mm thickness along with an effective absorption bandwidth of 4.48 GHz at 1.52 mm thickness. The optimized impedance matching, driven by synergistic magnetic-dielectric loss mechanisms, underpins its exceptional microwave absorption. Furthermore, the C/Co aerogel exhibited remarkable compressive strength (593.1 kPa), hydrophobicity (a hydrophobic angle of 124°), and flame retardancy. This work provides a strategic framework for designing multifunctional high-efficiency microwave absorbers.

ABSTRACT Coupling solar desalination with multi‐mechanism power generation offers a promising dual solution to water and energy crises, yet salt crystallization poses a major obstacle. Here, we present an integrated system featuring as multiple Donnan effects for salt‐resistant solar desalination and dual‐mode power generation. Leveraging the mechanisms of hydrogen bond differentials and Fe 3+ ‐tannic acid crosslinking, a ─SO 3 − ‐functionalized porous sponge evaporator (PSE‐SO 3 − ) was fabricated. Enabled by the Donnan effect of ─SO 3 − groups, the evaporator simultaneously resists salt accumulation and boosts hydrovoltaic power generation, thereby achieving a peak seawater evaporation rate of 4.19 kg m −2 h −1 under one‐sun irradiation while maintaining a salt‐free surface. Simultaneously, PSE2‐SO 3 − generated electricity via the hydrovoltaic effect, delivering outstanding power densities of 5.76/4.34 mW m −2 under one sun/dark conditions. Molecular dynamics simulations and in situ Raman spectroscopy confirmed Cl − interception and elucidated the H + ‐water interaction mechanism for power generation. Furthermore, integrating reverse electrodialysis based on the Donnan effect as an auxiliary strategy enhanced salt resistance of PSE2‐SO 3 − and delivered an osmotic power output of 0.804 W m −2 . Scale‐up of the self‐designed integrated system to an outdoor environment revealed synergistic performance outcomes, thereby establishing a pioneering demonstration platform for the efficient cogeneration of clean water and energy from seawater.

In the clinical management of bacterial keratitis, antimicrobial delivery is limited by short ocular surface retention and low bioavailability. Meanwhile, free radical damage and severe inflammation caused by bacterial invasion remain key clinical challenges. To address these issues, we developed a novel metal-phenolic nanoparticles (FCTP), which were self-assembled from ferric ions (Fe3 +), curcumin, tannic acid, and ε-poly-L-lysine through metal-phenolic networks and electrostatic interactions, and were loaded onto a dissolvable microneedle (MN) system for the treatment of bacterial keratitis. In vitro assays demonstrated that the obtained FCTP nanoparticles exhibited a potent and rapid bactericidal activity by disrupting the bacterial biofilm. They can also scavenge excessive free radicals in the corneal cells. Moreover, FCTP nanoparticles regulated macrophage polarization from M1 to M2 by modulating phosphorylation of NF-κB pathway kinases, significantly inhibiting pro-inflammatory cytokines (IL-6, TNF-α) and upregulating anti-inflammatory IL-10. In Vivo experiments verified that FCTP-loaded dissolvable MNs penetrated the corneal barrier and biofilm. Compared with eye drops, the MN showed superior efficacy in eradicating bacteria, relieving ocular inflammation, and promoting corneal epithelialization with a single administration. Overall, this multifunctional nanoplatform provides a promising strategy for ocular diseases by targeting infection, oxidative stress, inflammation, and physiological barriers.