Facile one-step recovery of stable lignin nanoparticles from sugarcane bagasse black liquor and their application in bioactive food packaging.

Lignin nanoparticles (LNPs) were recovered by one-step acidification of the black liquor from sugarcane bagasse treatment, substituting the conventional two-step practice. For the first time, the effect of extra stirring time on the stability of LNPs was investigated. Having been precipitated from 10 to 25 folds diluted black liquor to pH values of 1.

Functional bio-packaging enhanced with nanocellulose from rice straw and cinnamon essential oil Pickering emulsion for fruit preservation.

Biopackaging materials are gaining significant attention compared to traditional synthetic polymers thanks to their biodegradable and biocompatible nature to be used in food, pharmaceutical, and cosmetic industries. The current major gaps in research regarding these biopackaging materials are their low mechanical strength and the introduction of functional additives to enhance their range of applications. In this paper, a biopackaging material is formulated using polyvinyl alcohol with glycerol as a plasticizer, rice straw-derived nanocellulose as a mechanical property enhancer and cinnamon essential oil Pickering emulsion as the main functional ingredient for strawberry preservation.

Rigid and Flexible Component Combined Si@g-CN/C: A Synergistic Strategy for Constructing Robust Structure to Enhance the Cyclic Stability of the Silicon Anodes.

The practical application of high-capacity silicon is hindered by severe volume variation during cycling. Herein, a synergistic strategy integrating rigid and flexible components is proposed to construct a Si@g-CN/C composite with a robust structure. The rigid component, glucose-derived carbon, forms an outer protective layer and an inner conductive network, avoiding direct electrolyte contact and providing sufficient conductivity.

Tailoring morphological and electrical properties of nanoplate-ZnO varistors sintering temperature.

In this study, ZnO nanoplates (crystallite size: 100 nm, thickness: 15 nm) were synthesized a hydrothermal route. Varistors were then fabricated using these ZnO nanoplates incorporated with five oxide dopants (BiO, SbO, MnO, CoO, and CrO) and sintered at 1000, 1100, and 1200 °C. A control varistor sample using micro-sized ZnO was also prepared.

A new ursane-type triterpene and potent antibacterial alkylbenzoquinones from the aerial parts of .

A new ursane-type triterpene () alongside two known alkylbenzoquinones, dihydromaesanin () and embeliquinone (), were isolated from the aerial parts of . The structure of was elucidated based on 1D-, 2D-NMR, and HRESI-MS data. The two alkylbenzoquinones were tested on 13 phytopathogenic bacterial strains.

Effective removal of carbofuran pesticide in wastewater using silver-doped TiO photocatalyst.

This study presents effective methods for utilizing the TiO photocatalyst in environmental remediation, with a particular focus on the removal of the carbofuran pesticide (CBFP) from wastewater. Silver (Ag) was selected as a potential dopant to improve the optical properties as well as the electron-hole pair separation efficiency of TiO. Ag-doped TiO (Ag-TiO) effectively decomposed 92.

Novel magnetic nanocomposite FeO@CS@PHMG as an effective and recyclable antimicrobial material for hospital wastewater disinfection.

Hospital wastewater (HWW) is a major pollutant that presents significant risks to both environmental and human health. In this study, we developed a novel, inexpensive and highly antibacterial magnetic nanocomposite composed of FeO nanoparticles synthesised from spent pickling liquors, coated with chitosan and then integrated with polyhexamethylene guanidine hydrochloride (FeO@CS@PHMG) using sodium tripolyphosphate (TPP) as a crosslinking agent. The obtained results revealed that the synthesised nanocomposite exhibited high antibacterial activity against and .

A novel polymer composite from polyhexamethylene guanidine hydrochloride for high performance triboelectric nanogenerators (TENGs).

In this study, we report the successful fabrication of a novel antibacterial triboelectric nanogenerator (TENG) using a polymer composite film based on polyhexamethylene guanidine hydrochloride (PHMG). The composite materials, with optimised ingredient ratios, consist of PHMG, polyvinyl alcohol (PVA) and glutaraldehyde (GA) as a crosslinking agent (PHMG-GA-PVA). Utilising 3D printing, these composite materials were directly deposited on the conductive substrates and used as positive TENG electrodes.

Lignin nano/micro-particles from agricultural biomasses: Developing direct precipitation for integrated biorefinery.

The state-of-the-art, simple and scalable methods for lignin micro-/nano-particles recovery from agricultural biomasses were evaluated in this review. Being non-wood biomasses, these materials can be easily fibrillated, supporting the usage of mild soda or organic solvent pretreatment. Different approaches in particle recovery were compared to conclude that the bottom-up approach facilitates smaller particles towards the nano-size range whereas mechanical treatment can act as a supporting method to increase uniformity and reduce particle sizes after bottom-up precipitation.

Fabrication and characterization of a chitosan/cyclodextrin/TiO-NPs composite for preservation of avocados.

In this study, a TiO material with nanoparticle size of about 10-20 nm, surface area of 109 m g was synthesized using the microwave-assisted hydrothermal method. The chitosan/TiO film combined with cyclodextrin (chitosan-cyclodextrin/TiO, CS-CD/TiONPs) helps significantly improve the mechanical properties and enhance the antibacterial activity of the polymer film. Furthermore, the content of TiO nanoparticles in CS-CD/TiONPs also affects the tensile strength, antibacterial activity, ripening rate, ethylene production rate, and water vapor permeability during food preservation of the CS-CD film that has been studied.

Robust interaction of ZnO and TiO nanoparticles with layered graphitic carbon nitride for enhanced photocatalytic oxidative desulfurization of fuel oil: mechanism, performance and stability.

Sulfur compounds in fuel such as thiophene, benzothiophene and dibenzothiophene are the primary source of SO emissions, leading to environmental pollution and acid rain. In this study, we synthesized a layered oxygen-doped graphitic carbon nitride (OCN) structure and integrated ZnO and TiO nanoparticles onto the OCN surface through a microwave-assisted sol-gel method. The X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) results confirmed a robust interaction between the ZnO and TiO nanoparticles and the oxygen-doped g-CN (OCN) surface, as indicated by the formation of C-N-Ti and C-O-Ti bonds.

Incorporation of Nanostructural Hydroxyapatite and Curcumin Extract from L. Rhizome into Polylactide to Obtain Green Composite.

This study showed that a polylactide (PLA)-based composite filled with nanostructured hydroxyapatite (HAp) and a natural extract from the rhizome of L. could provide an alternative to commonly used fossil-based plasticsfor food packaging. The incorporation of HAp into the PLA matrix had a positive effect on improving selected properties of the composites; the beneficial effect could be enhanced by introducing a green modifier in the form of an extract.

Investigation on cost-effective composites for CO adsorption from post-gasification residue and metal organic framework.

Cost-effective CO adsorbents are gaining increasing attention as viable solutions for mitigating climate change. In this study, composites were synthesized by electrochemically combining the post-gasification residue of Macadamia nut shell with copper benzene-1,3,5-tricarboxylate (CuBTC). Among the different composites synthesized, the ratio of 1:1 between biochar and CuBTC (B 1:1) demonstrated the highest CO adsorption capacity.

A Comparative Study on Characteristics and Antibacterial Capacity of Cotton Fabrics Dyed with Reactive Dye and Diospyros Mollis Extract.

This article focuses on comparing the characteristics of cotton fabric dyed with Diospyros mollis extract (DME) solution and that of cotton fabric dyed with the reactive dye. The parameters of the cotton fabric after dyeing with both types of dyes were assessed, including color strength (K/S), structural morphology, infrared spectrum, antibacterial properties, UV resistance, color fastness to washing, rubbing, light, moisture absorption, breathability, and wastewater indices. The obtained results show that the K/S value of cotton fabric dyed with DME solution is slightly lower than that of cotton fabric dyed with the reactive dye, 18.

Innovative ultrasonic emulsification of cinnamon essential oil pickering emulsion stabilized by rice straw-derived cellulose nanocrystals.

For the first time, ultrasonic emulsification was studied for cinnamon essential oil (CEO) Pickering emulsion, stabilized by cellulose nanocrystal (CNC) from rice straw. Sonication proved to be an effective method for emulsifying CEO, creating small emulsion droplets around 700 nm in size, with an even dispersion characterized through a low polydispersity index. The biomass-derived CNC exhibits high encapsulation efficiency (> 95 %) with varying CEO concentration (5-25 vol%), creating droplets with negative surface charge with limited aggregation of emulsions.

Assessment of microplastics pollution level on clam farming and bathing beaches: a case study of Thanh Phu in Ben Tre, Vietnam.

This study focused on the investigation microplastics (MPs) with a size of ≤1.0 mm in sand samples from Thanh Phu beach, Ben Tre, Vietnam. MPs in sand from the clam beach (from 39.

Modification of Hydrotalcite Loading Tannic Acid with Organic Silane and Application in Anticorrosive Epoxy Coating.

Metal corrosion is a challenge for the world with heavy impacts on the economy. Study on the development of effectiveness anticorrosion additives is a promising strategery for the protection industry. This research focuses on the modification of hydrotalcite Mg-Al (HT) loading tannic acid (TA) with 3-(trimethoxy silyl) propyl methacrylate organo-silane (TMSPM) for applicating as an anti-corrosion additive for epoxy coating on the steel substrate.

Unravelling the effects of functional groups on the adsorption of 2-mercaptobenzothiazole on a copper surface: a DFT study.

The adsorption of organic compounds onto metal surfaces holds significant importance across various applications, where understanding the intricate interactions between the compounds and the metal surfaces is indispensable. By using density functional theory calculations, this study investigated the impact of functional groups on the interaction between the thione form of 2-mercaptobenzothiazole (MBT) and the Cu(111) surface. The results indicated that substituting functional groups at the C6 position exerts a dual influence on the covalent and non-covalent interactions (NCI).

Antioxidant activity of an inclusion complex between rutin and β-cyclodextrin: experimental and quantum chemical studies.

This study aims to synthesize a guest-host complex derived from rutin (Rut) and β-cyclodextrin (β-CD) (denoted as [Rut⊂β-CD]). The obtained substance was characterized by the FT-IR and DSC methods, signifying the formation of an inclusion complex between Rut and β-CD. Complex formation increased the antioxidant activity of rutin corresponding to the decrease of EC values from 1.

Enhancing catalytic activity of CuCoFe-layered double oxide towards peroxymonosulfate activation by coupling with biochar derived from durian peel for antibiotic degradation: The role of C=O in biochar and underlying mechanism of built-in electric field.

CuCoFe-LDO/BCD was successfully synthesized from CuCoFe-LDH and biochar derived from durian shell (BCD). Ciprofloxacin (CFX) degraded more than 95% mainly by O and O in CuCoFe-LDO/BCD(2/1)/PMS system within 10 min with a rate constant of 0.255 min, which was 14.

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries.

Preparing Si/C composite material with uniformly dispersed Si particles and stable electrode structure remains a huge challenge. In this study, a Si/C composite material with reinforced interfacial interaction (Si&AG) was successfully synthesized. Utilizing the HF-plasma technique, the metallurgical Si with large particle size was evaporated and nucleated, resulting in nanocrystallization and uniform dispersion onto the graphite surface.

Optimizing Green Synthesis of Hydrotalcite - Silver Nanoparticles using Syzygium Nervosum based Reducing Agent.

Hydrotalcite-silver (HT-Ag) nanoparticles have been involved in various daily crucial applications, such as antibacterial, photocatalytic, adsorption, etc. There are many approaches to synthesizing silver nanoparticles (AgNPs) decorated on hydrotalcite (HT) surface and the most used approach is using a strong reducing agent. Thus, affordable but effective "green" reducing agents - Syzygium nervosum leaf extract, are taken into account in this work to solve several issues related to chemical reducing agents.

Simple and Rapid Method of Microwell Array Fabrication for Drug Testing on 3D Cancer Spheroids.

Three-dimensional (3D) cell culture systems are becoming increasingly popular due to their ability to mimic the complex process of angiogenesis in cancer, providing more accurate and physiologically relevant data than traditional two-dimensional (2D) cell culture systems. Microwell systems are particularly useful in this context as they provide a microenvironment that more closely resembles the in vivo environment than traditional microwells. Poly(ethylene glycol) (PEG) microwells are particularly advantageous due to their bio-inertness and the ability to tailor their material characteristics depending on the PEG molecular weight.

Charge Transfer-Promoted Excited State of a Heavy-Atom-Free Photosensitizer for Efficient Application of Mitochondria-Targeted Fluorescence Imaging and Hypoxia Photodynamic Therapy.

Conventional photosensitizers (PSs) used in photodynamic therapy (PDT) have shown preliminary success; however, they are often associated with several limitations including potential dark toxicity in healthy tissues, limited efficacy under acidic and hypoxic conditions, suboptimal fluorescence imaging capabilities, and nonspecific targeting during treatment. In response to these challenges, we developed a heavy-atom-free PS, denoted as , by incorporating ethyl carbazole into a thiophene-fused BODIPY core. A comprehensive investigation into the photophysical properties of was conducted through a synergistic approach involving experimental and computational investigations.