Results 111 to 120 of about 399,190 (328)

Modification and Patterning of Thiolate‐Anchored Self‐Assembled Monolayers with UV Light

open access: yesAdvanced Materials Interfaces, EarlyView.
This paper reviews the relevant work regarding the modification and patterning of thiolate‐anchored self‐assembled monolayers with UV light. Performed alone or in combination with a subsequent exchange reaction, introducing specific molecular substituents, this approach enables the preparation of functional binary SAMs and the creation of complex ...
Michael Zharnikov, Andreas Terfort
wiley   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell   +6 more
wiley   +1 more source

Microlasers Made Entirely from Edible Substances

open access: yesAdvanced Optical Materials, EarlyView.
Several types of microlasers made completely out of edible substances are developed. They can be embedded directly into edible products and enable the sensing of various parameters, including sugar concentration, pH, the presence of bacteria, and exposure to too‐high temperatures.
Abdur Rehman Anwar   +4 more
wiley   +1 more source

Modified Iterative Extended Hueckel. 2: Application to the interaction of Na(+), Na(+)(aq.), Mg(+)-2(aq.) with adenine and thymine [PDF]

open access: yes
Modified Iterative Extended Hueckel, which includes explicit effective internuclear and electronic interactions, is applied to the study of the energetics of Na(+),Mg(+), Na(+) (aqueous), and Mg(+2) (aqueous) ions approaching various possible binding ...
Aronowitz, S., Chang, S., Macelroy, R.
core   +1 more source

Stretching of a single-stranded DNA: Evidence for structural transition

open access: yes, 2009
Recent experiments have shown that the force-extension (F-x) curve for single-stranded DNA (ssDNA) consisting only of adenine [poly(dA)] is significantly different from thymine [poly(dT)].
C. R. Cantor   +5 more
core   +1 more source

Enzymatic Synthesis of Enantiopure (R)‐Citronellal from Geraniol via a Short‐Chain Dehydrogenase and Ene Reductase

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A synthetic cascade with two consecutive biocatalytic steps consisting of a short‐chain alcohol dehydrogenase and an ene reductase in a biphasic system provides (R)‐citronellal with >90% conversion and >99% enantiomeric excess from inexpensive geraniol. The development of synthetic routes to produce enantiopure (R)‐citronellal as a key intermediate for
Claudia Ferrer‐Carbonell   +4 more
wiley   +1 more source

Metabolic Response to Stress Differentiates Heterogeneous Cancer Cells with Varying Metastatic Potential [PDF]

open access: yes, 2017
Intratumoral heterogeneity is ubiquitously present within primary tumors and contributes to intractable behaviors such as metastasis and mutability spatiotemporally.
Alhallak, Kinan
core   +2 more sources

Adenine Aminohydrolase

open access: yesJournal of Biological Chemistry, 1967
Abstract The adenine aminohydrolase of Azotobacter vinelandii has been shown not to catalyze the incorporation of products (hypoxanthine or chloride) into the substrate 6-chloropurine during the course of its hydrolysis of the latter compound. This was the case over a wide range of pH and under conditions which would have readily permitted the ...
Irwin Fridovich, Larry G. Howell
openaire   +3 more sources

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