Results 41 to 50 of about 8,110,093 (383)

Reverse osmosis membrane composition, structure and performance modification by bisulphite, iron(III), bromide and chlorite exposure [PDF]

open access: yes, 2016
Reverse osmosis (RO) membrane exposure to bisulphite, chlorite, bromide and iron(III) was assessed in terms of membrane composition, structure and performance.
Cortina Pallás, José Luís   +2 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Self‐Aggregation‐Induced Polymerization for Constructing Multifunctional Dynamic Zwitterionic Hydrogels

open access: yesAggregate
Zwitterionic hydrogels have attracted considerable attention as advanced biomaterials. However, the fabrication of traditional zwitterionic hydrogels typically relies on harsh polymerization conditions, and their backbone structures are non‐biodegradable.
Xiaohui Li   +11 more
doaj   +1 more source

Integrin-mediated membrane blebbing is dependent on the NHE1 and NCX1 activities. [PDF]

open access: yes, 2011
Integrin-mediated signal transduction and membrane blebbing have been well studied to modulate cell adhesion, spreading and migration^1-6^. However, the relationship between membrane blebbing and integrin signaling has not been explored.
Chi-Hung Lin   +8 more
core   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

open access: yesFEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz   +5 more
wiley   +1 more source

Photobiomodulation promotes osteogenic differentiation of mesenchymal stem cells and increases P-Akt levels in vitro

open access: yesScientific Reports
Bone defects are common orthopedic conditions, and due to the limited regenerative capacity of bone tissue, their repair remains a challenge in orthopedic surgery.
Chunyan Ma   +6 more
doaj   +1 more source

Sterol transporters at membrane contact sites regulate TORC1 and TORC2 signaling. [PDF]

open access: yes, 2017
Membrane contact sites (MCSs) function to facilitate the formation of membrane domains composed of specialized lipids, proteins, and nucleic acids. In cells, membrane domains regulate membrane dynamics and biochemical and signaling pathways.
Murley, Andrew   +6 more
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

Coupling solar‐driven interfacial evaporation with forward osmosis for continuous water treatment

open access: yesExploration, 2022
Forward osmosis (FO) driven by osmotic pressure difference has great potential in water treatment. However, it remains a challenge to maintain a steady water flux at continuous operation. Herein, a FO and photothermal evaporation (PE) coupling system (FO‐
Xiangju Song   +5 more
doaj   +1 more source

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