Results 81 to 90 of about 1,371,077 (290)

Azino-Fused Benzimidazolium Salts as DNA Intercalating Agents. 2.

open access: yes, 2016
The synthesis of new pyrido[1,2-a]- and pyridazino[1,6-a]benzimidazolium salts by basic condensation of 1,3-disubstituted 2-alkylbenzimidazolium salts and 1,2-diketones and subsequent chemical transformations is described.
José L. García-Navío (3039810)   +8 more
core   +1 more source

Clinical relevance of "withdrawal therapy" as a form of hormonal manipulation for breast cancer

open access: yesWorld Journal of Surgical Oncology, 2011
Background It has been shown in in-vitro experiments that "withdrawal" of tamoxifen inhibits growth of tumor cells. However, evidence is scarce when this is extrapolated into clinical context. We report our experience to verify the clinical relevance of "
Robertson John FR   +2 more
doaj   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

open access: yesAdvanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu   +15 more
wiley   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

open access: yesAdvanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain   +25 more
wiley   +1 more source

Design and synthesis of DNA-intercalating 9-fluoren-beta-O-glycosides as potential IFN-inducers, and antiviral and cytostatic agents

open access: yes, 2004
Novel 9-fluoren-beta-O-glycosides, designed as DNA-intercalating agents in structural correlation with antiviral tilorone and anticancer anthracyclines, have been prepared with yields in beta-anomers ranging between 25 and 63%.
ORTUSO F   +6 more
core   +1 more source

New Insights into Structural and Functional Roles of Indole-3-acetic acid (IAA): Changes in DNA Topology and Gene Expression in Bacteria

open access: yesBiomolecules, 2019
: Indole-3-acetic acid (IAA) is a major plant hormone that affects many cellular processes in plants, bacteria, yeast, and human cells through still unknown mechanisms.
Roberto Defez   +7 more
doaj   +1 more source

Efectos biológicos de las radiaciones ionizantes

open access: yesRevista Colombiana de Cardiología, 2020
Resumen: Los seres vivos han interactuado desde el inicio de su evolución con las radiaciones ionizantes, las no ionizantes y los agentes químicos provenientes de fuentes naturales.
J. Anselmo Puerta-Ortiz   +1 more
doaj   +1 more source

Electrolyte Engineering Challenges and Opportunities for Next‐Generation Aqueous Ammonium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
Aqueous ammonium‐ion batteries (AAIBs) face a hydrogen‐bond paradox: the HB network enables fast NH4+ transport but triggers water decomposition. This review dissects this dilemma, evaluates multiple electrolyte engineering strategies, and outlines four future directions for next‐generation AAIB design ABSTRACT Aqueous ammonium‐ion batteries (AAIBs ...
Zi‐Hang Huang   +6 more
wiley   +1 more source

New mono- and bis-intercalating compounds between DNA base pairs.

open access: yes, 1993
With the aim to obtain new bis-intercalating agents in DNA a series of compounds was prepared linking two identical tricyclic moieties (two 4,5'-8-trimethylpsoralen (TMP)) or different (one TMP and one pyrido[3,2-b]quinoline) through a hydrocarburic ...
Rodighiero G.   +4 more
core  

Beyond autonomy : the self and life of social agents

open access: yes, 2019
Agents have gained popularity nowadays as virtual assistants and companions of their human users supporting daily activities in many aspects of personal life.
Tan, Ah-Hwee, Subagdja, Budhitama
core   +1 more source

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