Results 81 to 90 of about 66,987 (302)

Laponite nanosheets modified polyethersulfone membranes with enhanced high-pressure resistance for stable separation

open access: yesAdvanced Membranes
Many high-performance ultrafiltration membranes have been developed to address pollutant removal in complex water environments. However, the permeability-selectivity trade-off and inherent instability issues remain unresolved.
Zhijiang Sun   +9 more
doaj   +1 more source

Recent advances in the formation of phase inversion membranes made from amorphous or semi-crystalline polymers [PDF]

open access: yes, 1996
Structural characteristics in membranes formed by diffusion induced phase separation processes are discussed. Established theories on membrane formation from ternary systems can be extended to describe the effects of high or low molecular weight ...
Beerlage, M.A.M.   +5 more
core   +2 more sources

BLADE‐ON‐PETIOLE Genes Enable Genetic Bottleneck Mitigation Through Cross‐Species Repurposing of Floral Persistence Traits

open access: yesAdvanced Science, EarlyView.
This study shows that BLADE‐ON‐PETIOLE (BOP) proteins regulate floral abscission and senescence in tomato by interacting with TFAM1 to form transcriptional condensates controlling the ARABIDOPSIS THALIANA HOMEOBOX GENE 1 (ATH1)‐mediated abscission pathway.
Nan Xiao   +7 more
wiley   +1 more source

Extraction and purification of exopolysaccharides from exhausted Arthrospira platensis (Spirulina) culture systems [PDF]

open access: yes, 2017
Microalgal endo and exopolysaccharides (EPS) are attracting increasing interest for their potential applications in the food, cosmetic and pharmaceutical industries.
Bravi, Marco   +2 more
core   +1 more source

Hierarchical Targeting of TREM2+ Myeloid Cells via Acid‐Triggered OMVs Reprogram Immunosuppression and Suppress Osteolysis in Bone‐Metastatic TNBC

open access: yesAdvanced Science, EarlyView.
This study developed a hierarchical targeting nanoplatform, siTREM2@ETP‐PEOz‐OMVs, against triple‐negative breast cancer (TNBC) bone metastasis. It precisely delivers therapeutic siTREM2 to monocytes/macrophages within the metastatic niche. This intervention dually regulates cell fate: reprogramming immunosuppressive macrophages and inhibiting ...
Fanglu Chen   +12 more
wiley   +1 more source

Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation [PDF]

open access: yes, 1985
The phase separation phenomena in ternary solutions of polysulfone (PSf) in mixtures of a solvent and a nonsolvent (N,N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that
Kant, J.   +3 more
core   +3 more sources

Engineered Bacteria Factory Integrating Drug Delivery and Antibody Manufacture for Activating the STING Signal Pathway Mediated Tumor Immunotherapy

open access: yesAdvanced Science, EarlyView.
To address the limitations of protein‐based ICIs in applications, this study constructed an engineered bacterium, HRB, capable of expressing aCD47 in hypoxic TME. Through the Schiff base reaction, responsive liposomes (LC) loaded with the STING agonist cGAMP were connected to the surface of bacteria to form HRB@LC.
Peng‐Shuo Dong   +9 more
wiley   +1 more source

Integrated approach to elevating PES membrane performance with a dynamic silica and chitosan additive duo

open access: yesSouth African Journal of Chemical Engineering
Membrane fouling, low permeate flux, and the trade-off between flux and solute rejection remain pressing challenges in ultrafiltration processes, often compromising efficiency and selectivity.
Umi Fathanah   +6 more
doaj   +1 more source

Fouling mechanisms in constant flux crossflow ultrafiltration [PDF]

open access: yes, 2019
Four fouling models due to Hermia (complete pore blocking, intermediate pore blocking, cake filtration and standard pore blocking), have long been used to describe membrane filtration and fouling in constant transmembrane pressure (ΔP) operation of ...
Cheng, Yu-Heng   +4 more
core   +2 more sources

A Radioresistant‐Tumor‐Targeted Nanoparticle for X‐Ray‐Controlled Nitric Oxide Release to Potentiate Radiotherapy

open access: yesAdvanced Science, EarlyView.
The PBTN targets GRP78 and, upon X‐ray irradiation, generates ONOO− to induce immunogenic cell death, thereby activating CD8+ T cells and establishing a systemic antitumor immune response. ABSTRACT Nitric oxide (NO) treated radioresistant tumors by relieving hypoxia and blocking DNA repair, but its nonselective toxicity has precluded therapeutic use ...
Wanze Zhang   +10 more
wiley   +1 more source

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