Results 151 to 160 of about 31,060 (293)

Identificación de las feromonas de trilla de hormigas cortadoras (formicidae: attini)1

Revista Colombiana de Química, 2010
Del extracto en diclorometano de las glándulas de veneno de las hormigas cortadoras: Atta laevigata, Atta bisphaerica, Acromyrmex subterraneus molestans.
Oscar Marino Mosquera, Joao Sabino de Oliveira   +1 more
doaj  

Composição volátil dos defeitos intrínsecos do café por CG/EM-headspace Volatile composition of intrinsic defective coffee beans by GC/MS-headspace

Química Nova, 2009
About 20% of Brazilian raw coffee production is considered inappropriate for exportation. Consequently, these beans are incorporated to good quality beans in the Brazilian market. This by-product of coffee industry is called PVA due to the presence of black (P), green (V) and sour (A) defective beans which are known to contribute considerably for cup ...
Raquel D. C. C. Bandeira, Aline T. Toci, Luiz C. Trugo, Adriana Farah   +3 more
openaire   +1 more source

Chemically‐Linked Heterostructures of Palladium Nanosheets and 2H‐MoS2

Small, EarlyView.
The photoresponse of MoS2 devices is extended to the near‐infrared region (up to 1700 nm) through chemical connection to Pd nanosheets (PdNS). A maleimide is used for covalent connection to MoS2, and a phenyl bromide moiety for linkage to the PdNS. In the absence of the chemical linker, van der Waals heterostructures show poorer enhancement of the ...
Ramiro Quirós‐Ovies, Pablo Bastante, Simon Hettler, Víctor Vega‐Mayoral, Sergio Aina, Vasileios Balos, Thomas Pucher, Andrés Castellanos‐Gomez, Raul Arenal, Juan Cabanillas‐Gonzalez, Emilio M. Pérez, Jesús Santamaría, Víctor Sebastian   +12 more
wiley   +1 more source

Comparação de métodos analíticos para quantificação de ácido valproico

Revista de Ciências Farmacêuticas Básica e Aplicada, 2011
As intoxicações por medicamentos são predominantes no Brasil e frequentes na faixa etária de 0 a 14 anos. O ácido valproico (AV) vem se destacando em virtude do aumento do seu espectro de utilização na terapêutica clínica, porém, a hepatotoxicidade pode ...
S.E. Haas, K.C. Mariotti, A.L. Krahn, R.J. Freddo, T. Dalla Costa, R.P. Limberger   +5 more
doaj  

Nature Inspired Delivery Vehicles for CRISPR‐Based Genome Editing

Small, EarlyView.
The review highlights nature‐inspired nanocarriers for CRISPR delivery, emphasizing viral vectors, extracellular vesicles, liposomes, and lipid nanoparticles. It discusses their roles in improving specificity, minimizing immunogenicity, and overcoming barriers in genome editing. Recent advancements, challenges, and therapeutic applications are explored,
Elizabeth Maria Clarissa, Mamata Karmacharya, Hyunmin Choi, Sumit Kumar, Yoon‐Kyoung Cho   +4 more
wiley   +1 more source

From Membrane Composition to Antimicrobial Strategies: Experimental and Computational Approaches to AMP Design and Selectivity

Small, EarlyView.
Antimicrobial peptides (AMPs) are promising candidates for next‐generation antibiotics, acting through mechanisms such as membrane disruption and intracellular targeting. This review examines how variations in bacterial membrane composition critically influence AMP activity.
Paolo Rossetti, Marius F.W. Trollmann, Christina Wichmann, Thomas Gutsmann, Christian Eggeling, Rainer A. Böckmann   +5 more
wiley   +1 more source

Determinação de carbamato de etila em aguardentes de cana por CG-EM Determination of ethyl carbamate in sugar cane spirits by GC-MS

Química Nova, 2008
A simple, specific and sensitive GC-MS procedure with ion m/z 62 was validated for the determination of ethyl carbamate (EC) in spirits. It exhibited linearity over the concentration of 30 to 600 μg/L with 30 μg/L limit of quantification. EC was detected in 70 of the 71 samples analyzed with levels from 33 to 2609 μg/L (mean level = 893 &
Renata Adriana Labanca, Maria Beatriz Abreu Glória, Robson José de Cássia Franco Afonso   +2 more
openaire   +1 more source

Live Imaging of Silver Nanostructures Electrochemically Dissolving at Open‐Circuit Potential

Small, EarlyView.
Stability of electrocatalysts as used in energy conversion systems is pivotal for sustainable technologies, yet degradation dynamics at the nanoscale remain elusive. Harnessing beam‐effect corrected electrochemical liquid phase electron microscopy combined with correlative bulk‐scale electrochemical testing reveals silver corrosion on platinum under ...
Andreas Körner, A. Lucía Morales, Birk Fritsch, Lena Fiedler, Justin T. Mulvey, Christian Göllner, Damien Alloyeau, Joseph P. Patterson, Paolo Malgaretti, Karl J. J. Mayrhofer, Serhiy Cherevko, Andreas Hutzler   +11 more
wiley   +1 more source

Molecular and structural basis of a subfamily of PrfH rescuing both the damaged and intact ribosomes stalled in translation. [PDF]

Sci Adv
Tian Y, Li Q, Fatma S, Jiang J, Jin H, Zeng F, Huang RH.   +6 more
europepmc   +1 more source

A novel circumscription and classification for Neurolaeneae (Asteraceae)

TAXON, EarlyView.
Abstract Neurolaeneae (Asteraceae) have a complicated taxonomic history. The tribe was described in 1927, but subsequently disregarded in 1977, and later reinstated as a tribe following a large‐scale phylogenetic analysis of Asteraceae in 2002. To date, this tribe has remained poorly studied and it has never been the subject of a comprehensive ...
Vinicius R. Bueno, Morgan R. Gostel, Genilson A. Reis‐Silva, Jimi N. Nakajima, Gustavo Heiden   +4 more
wiley   +1 more source