Results 71 to 80 of about 99,974 (260)

Bottom‐up Strategies for Generating Polymer Protocells That Mimic Cellular Communication

Chemistry – A European Journal, EarlyView.
This review focuses on polymeric protocells produced using a bottom‐up approach. Polymer‐based assemblies guarantee stability and designability by adjusting the properties of the amphiphilic copolymers used. The review covers protocell architectures, production, and their intra‐ and intercellular communication mechanisms.
Gloria Saorin, Xinan Huang, Voichita Mihali, Cornelia G. Palivan   +3 more
wiley   +1 more source

Analysis of acid-stressed Bacillus cereus reveals a major oxidative response and inactivation-associated radical formation [PDF]

, 2010
Acid stress resistance of the food-borne human pathogen Bacillus cereus may contribute to its survival in acidic environments, such as encountered in soil, food and the human gastrointestinal tract. The acid stress responses of B.
Abee, T., Kranenburg, R., van, Melis, C.C.J., van, Moezelaar, R., Mols, J.M.   +4 more
core   +2 more sources

Synthesis, enzyme inhibition and anticancer investigation of unsymmetrical 1,3-disubstituted ureas [PDF]

Journal of the Serbian Chemical Society, 2014
In this research work seventeen urea derivatives, including five new derivatives N-mesityl-N'-(3-methylphenyl)urea (2), N-(3-methoxyphenyl)-N'-(3-methylphenyl)urea (4), N-mesityl-N'-(4-methylphenyl)urea (6), N-(1,3-benzothiazol-2-yl)-N'-(3 ...
Mustafa Sana, Perveen Shahnaz, Khan Ajmal   +2 more
doaj   +1 more source

Constructing Cu/Cu2O Heterogeneous Interface for Efficient Urea Electrosynthesis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this study, a Cu/Cu2O heterogeneous interface with dual active sites is prepared for electrocatalytic CO2 and NO3−$$ {\mathrm{NO}}_3^{-} $$ coupling to urea. The catalyst shows high yield rates of 1156.63 mmol g−1 h−1 and FE of 29.67% at −1.0 V (vs RHE), which is significantly higher than Cu and Cu2O, highlighting the advantages of heterogeneous ...
Jiani Liu, Peiyue Jin, Yujing Liu, Tian Cheng, Jianlong Wei, Jingjing Liu, Yiqiong Zhang, Shuangyin Wang   +7 more
wiley   +1 more source

Role of VicRKX and GlnR in pH-Dependent Regulation of the Streptococcus salivarius 57.I Urease Operon

mSphere, 2016
Ureolysis by Streptococcus salivarius is critical for pH homeostasis of dental plaque and prevention of dental caries. The expression of S. salivarius urease is induced by acidic pH and carbohydrate excess.
Szu-Chuan Huang, Yi-Ywan M. Chen
doaj   +1 more source

Engineered Probiotics: The Next‐Generation Therapeutics to Combat Antibiotic‐Resistant Bacterial Infections

Food Frontiers, EarlyView.
Engineered probiotics secretes fusion proteins which potentially neutralized the toxins secreted by other microbial communities. ABSTRACT On a global scale, the escalating burden of infectious diseases, predominantly attributed to bacterial pathogens, especially drug‐resistant strains, has progressed into a critical concern for clinical management and ...
Indu Singh, Raz Abdulqadir, Indira Kumari Verma, Yashika Awasthi, Arun Ratn, Juhi Sharma, Manmeet Rawat, Megh Singh Dhakad, Jasbir Dalal, Yash Gupta, Bhisham Narayan Singh, Divakar Sharma   +11 more
wiley   +1 more source

Actinobacillus pleuropneumoniae does not require urease activity to produce acute swine pleuropneumonia [PDF]

, 1997
The role in virulence of Actinobacillus pleuropneumoniae urease activity was investigated. A urease-negative mutant was isolated following transposon mutagenesis with a mini-Tn10 derivative. Both the parent strain and the urease-negative mutant exhibited
Blanchard, Clemens, Cruijsen, César B. Gutiérrez, De, Dom, Elías Fernando Rodríguez-Ferri, Gatermann, J.Ignacio Rodríguez-Barbosa, Jansen, José A. Vázquez-Boland, Lee, Mobley, Monack, Reed, Reyrat, Rubén-Iván Tascón Cabrero, Rudd, Smoot, Tarigan, Udeze, Van   +21 more
core   +1 more source

A precisely litho‐patterned carbon/silver nanoparticles arrays as a sensitive surface‐enhanced Raman scattering‐based biosensor for kidney disease assessment

Information &Functional Materials, EarlyView.
A highly sensitive surface‐enhanced Raman scattering substrate—consisting of carbonized photoresist embedded with silver nanoparticles—was developed for the efficient, simultaneous detection of serum creatinine (Scr) and blood urea nitrogen. This substrate accurately recapitulated the concentration trends of Scr, with results cross‐validated against ...
Yuchen Dong, Hanlu Wang, Jianwei Ma, Wenjun Liu, Xueyan Bian, Chenjie Gu   +5 more
wiley   +1 more source

Utilization of immobilized urease for waste water treatment [PDF]

The feasibility of using immobilized urease for urea removal from waste water for space system applications is considered, specifically the elimination of the urea toxicity problem in a 30-day Orbiting Frog Otolith (OFO) flight experiment. Because urease
Husted, R. R.
core   +1 more source

Using generalized quantitative structure–property relationship (QSPR) models to predict host cell protein retention in ion‐exchange chromatography

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Selecting an optimal chromatography resin during biopharmaceutical downstream process development is a great challenge. This is especially the case for recombinant subunit vaccines, where product properties vary greatly and recovery often involves cell lysis, which yields a complex mixture of different host cell materials. Host cell
Tim Neijenhuis, Olivier Le Bussy, Geoffroy Geldhof, Marieke E Klijn, Marcel Ottens   +4 more
wiley   +1 more source