Black soldier fly larvae mitigate greenhouse gas emissions from domestic biodegradable waste by recycling carbon and nitrogen and reconstructing microbial communities.

Black soldier fly larvae have been proven to reduce greenhouse gas emissions in the treatment of organic waste. However, the microbial mechanisms involved have not been fully understood. The current study mainly examined the dynamic changes of carbon and nitrogen, greenhouse gas emissions, the succession of microbial community structure, and changes in functional gene abundance in organic waste under larvae treatment and non-aeration composting.

Black soldier fly larvae recruit functional microbiota into the intestines and residues to promote lignocellulosic degradation in domestic biodegradable waste.

Lignocellulose is an important component of domestic biodegradable waste (DBW), and its complex structure makes it an obstacle in the biological treatment of DBW. Here, we identify black soldier fly larvae (Hermetia illucens L., BSFL) as a bioreactor for lignocellulose degradation in DBW based on their ability to effectively recruit lignocellulose-degrading bacteria.

Decomposition and humification process of domestic biodegradable waste by black soldier fly (Hermetia illucens L.) larvae from the perspective of dissolved organic matter.

Black soldier fly larvae (Hermitia illucens L.) (BSFL) bioconversion is a promising technology for domestic biodegradable waste (DBW) management and resource recovery. However, little is known about the DBW biodegradation during the BSFL bioconversion from the perspective of dissolved organic matter (DOM).

A full-scale black soldier fly larvae () bioconversion system for domestic biodegradable wastes to resource.

Domestic biodegradable wastes (DBW) pose a threat to environmental quality and human health. Bioconversion via black soldier fly larvae (BSFL; L.) is an expedient way for converting 'waste to resource' (insect protein and biofertilizer).

Black soldier fly larvae vermicompost alters soil biochemistry and bacterial community composition.

Black soldier fly larvae (Hermetia illucens L. BSFL) bioconversion is a promising biotechnology for food waste recycling, yet little is known about how BSFL vermicompost affects soil health in terms of element availability and related microbial response. In this work, a field soil experiment for luffa (Luffa cylindrica (L.

Layer-by-layer assembly of metal-organic framework nanosheets with polymer.

Metal-organic framework (MOF) nanosheets are attracting more and more attention due to their tunable porous structure and two-dimensional shape. Adding MOF nanosheets into polymers can lead to improved properties, but the level of enhancement is usually thwarted by the difficulties in exfoliating and aligning these nanosheets within the polymer matrix. In order to establish a strategy for making polymer/MOF nanosheets composites with improved exfoliation and alignment, we combined MOF nanosheets and polymer using layer-by-layer (LbL) assembly for the first time.

Elastomeric Polymer Multilayer Thin Film with Sustainable Gas Barrier at High Strain.

Most gas barrier thin films suffer from cracking or plastic deformation when stretched, leading to significant loss of barrier. In an effort to make a stretchable gas barrier, which maintains low permeability when exposed to cyclic strain, we prepared layer-by-layer assemblies of tannic acid (TA) and poly(ethylene oxide) (PEO). A 40-bilayer (344 nm-thick) TA/PEO assembly maintained its oxygen transmission rate (6X lower than the 1.

Water-Based Melanin Multilayer Thin Films with Broadband UV Absorption.

Natural melanin is difficult to process due to its poor solubility and poorly understood structure. Synthetic melanin has been produced more recently, which is dispersible in mildly alkaline water and has many of the same properties of natural melanin. In this study, thin films of synthetic melanin and poly(allylamine hydrochloride) were deposited layer-by-layer from dilute aqueous solutions in ambient conditions.

Structural tailoring of hydrogen-bonded poly(acrylic acid)/poly(ethylene oxide) multilayer thin films for reduced gas permeability.

Hydrogen bonded poly(acrylic acid) (PAA)/poly(ethylene oxide) (PEO) layer-by-layer assemblies are highly elastomeric, but more permeable than ionically bonded thin films. In order to expand the use of hydrogen-bonded assemblies to applications that require a better gas barrier, the effect of assembling pH on the oxygen permeability of PAA/PEO multilayer thin films was investigated. Altering the assembling pH leads to significant changes in phase morphology and bonding.

Super Stretchy Polymer Multilayer Thin Film with High Gas Barrier.

Unlike ionically bonded or clay-loaded gas barrier thin films, which easily crack when moderately stretched, hydrogen-bonded poly(acrylic acid) (PAA)/poly(ethylene oxide) (PEO) multilayer thin films remain crack-free. Even after 100% strain, these nanocoatings provide more than a 5× reduction in oxygen transmission rate. This study shows that the lowest modulus PAA/PEO thin film is obtained at pH 3, but maintains a high barrier.

Improving the gas barrier property of clay-polymer multilayer thin films using shorter deposition times.

Relatively fast exposure times (5 s) to aqueous solutions were found to improve the gas barrier of clay-polymer thin films prepared using layer-by-layer (LbL) assembly. Contrary to the common belief about deposition time (i.e.