Results 61 to 70 of about 1,451,340 (297)

Microbial biomass conversion for hydrogen production: A review

open access: yesGreen Energy and Resources
The escalating demand for clean and sustainable energy sources has propelled hydrogen to the forefront of alternative fuel research. Microbial biomass conversion, a bio-based process utilizing microorganisms to convert organic matter into hydrogen ...
Muhamad Reda Galih Pangestu   +2 more
doaj   +1 more source

Integration of Biohydrogen Production with Heat and Power Generation from Biomass Residues

open access: yesChemical Engineering Transactions, 2013
The employment of renewable sources rather than fossil fuels in the production of hydrogen is an important step to achieve a sustainable hydrogen economy in the future.
W. Wukovits   +3 more
doaj   +1 more source

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

open access: yesAdvanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil   +6 more
wiley   +1 more source

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

open access: yesAdvanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang   +7 more
wiley   +1 more source

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

open access: yesAdvanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran   +3 more
wiley   +1 more source

Spatially Configurable Conformal Sensor Integration on an Ultra‐Fine Metallic Needle for Minimally Invasive Deep‐Tissue Oxygen Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A multi‐point oxygen‐sensing ultra‐fine needle (MO‐UFN) is developed by conformally integrating a lithographically patterned flexible electrochemical sensor array onto a clinical acupuncture needle. The platform preserves an approximately 0.3 mm diameter while enabling spatially resolved oxygen profiling along the insertion pathway.
Yeju Seo   +9 more
wiley   +1 more source

Photo-fermentational hydrogen production of Rhodobacter sp. KKU-PS1 isolated from an UASB reactor

open access: yesElectronic Journal of Biotechnology, 2015
Background: In this study, the detection of nifH and nifD by a polymerase chain reaction assay was used to screen the potential photosynthetic bacteria capable of producing hydrogen from five different environmental sources.
Thitirut Assawamongkholsiri   +1 more
doaj   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

open access: yesAdvanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu   +10 more
wiley   +1 more source

Microbial pathways for biohydrogen production: Advances, challenges, and future prospects

open access: yesSustainable Chemistry for the Environment
Rising oil costs, growing environmental concerns, and the pressing need for sustainable fossil fuel substitutes have all caused the globe to move firmly toward hydrogen as a possible future energy carrier. Microbial fermentation is a revolutionary method
Soghra Nashath Omer   +6 more
doaj   +1 more source

Effect of Initial Substrate pH and Light Intensity on Biohydrogen Production through photo-fermentation from Palm Oil Mill Effluent (POME) [PDF]

open access: yesJournal of Renewable Energy and Environment
The Palm Oil Mill Effluent (POME) still contains a significant quantity of organic substances that can potentially serve as raw materials for biohydrogen production.
Furqon Furqon   +3 more
doaj   +1 more source

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