Results 51 to 60 of about 5,188,183 (302)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Pyrolysis mechanism and evolved gas analysis of a promising energetic carbamate-functionalized microcrystalline cellulose nitrate

FirePhysChem
The present study aims to elucidate the decomposition mechanism and gas evolution characteristics of a promising energy-rich carbamated microcrystalline cellulose nitrate (M3CN).
Hani Boukeciat, Ahmed Fouzi Tarchoun, Djalal Trache, Amir Abdelaziz, Djamal Belmehdi, Redha Meziani, Lokmene Boumaza, Thomas M. Klapötke   +7 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Unraveling the role of ammonium perchlorate on the thermal properties and degradation kinetics of NPS-DEGDN energetic composite

FirePhysChem
Double-base energetic composites have garnered substantial attention, particularly in aerospace, rocket, and missile applications. This class of materials offers diverse burning rates, high specific impulses, exceptional operational performance, and ...
Nassima Sahnoun, Amir Abdelaziz, Memdouh Chebbah, Ahmed Fouzi Tarchoun, Hani Boukeciat, Yash Pal, Weiqiang Pang, Djalal Trache   +7 more
doaj   +1 more source

Advanced Energetic Materials: Testing and Modeling

, 2023
Energetic Materials (EMs) are a traditional branch of materials [...
Weiqiang Pang, Rui Liu, Yushi Wen
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Exploring the effect of ammonium nitrate on the thermal stability and decomposition kinetics of dual nitrocellulose-nitrostarch-based energetic composites

FirePhysChem
This study explores a dual-biopolymer-based energetic composite, emphasizing the synergistic effects achieved by combining nitrocellulose (NC) and nitrostarch (NPS) biopolymers with ammonium nitrate (AN), as an oxidizer.
Nawel Matmat, Amir Abdelaziz, Ahmed Fouzi Tarchoun, Hani Boukeciat, Mohammed Jouini, Fateh Chalghoum, Djalal Trache   +6 more
doaj   +1 more source

Energetic materials research using scanning electron microscopy

, 2016
A key-technique for the research of energetic materials is scanning electron microscopy. In this paper several examples are given of characterization studies on energetic materials, including a solid composite propellant formulation.
Elshout, J.J.M.H. van den, Duvalois, W., Benedetto, G.L. di, Bouma, R.H.B., Heijden, A.E.D.M. van der   +4 more
core  

Binder Materials for Green Propellants

, 2014
This chapter discusses binder materials for green solid composite and homogeneous rocket propellants. The propellant compositions considered are based on ammonium dinitramide, hydrazinium nitroformate, ammonium nitrate, guanyl urea dinitramide, or ...
Malmström, Eva,, Carina Eldsäter, Eldsäter, C., Eva Malmström   +3 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source