Results 71 to 80 of about 5,336,405 (341)

Base-pairing of uracil and 2,6-diaminopurine: from cocrystals to photoreactivity

iScience
Summary: We show that the non-canonical nucleobase 2,6-diaminopurine (D) spontaneously base pairs with uracil (U) in water and the solid state without the need to be attached to the ribose-phosphate backbone. Depending on the reaction conditions, D and U
Tomislav Stolar, Ben K.D. Pearce, Martin Etter, Khai-Nghi Truong, Tea Ostojić, Andraž Krajnc, Gregor Mali, Barbara Rossi, Krešimir Molčanov, Ivor Lončarić, Ernest Meštrović, Krunoslav Užarević, Luca Grisanti   +12 more
doaj   +1 more source

Conformational analysis and quantum descriptors of two new imidazole derivatives by experimental, DFT, AIM, molecular docking studies and adsorption activity on graphene

Heliyon, 2020
1-[2-(2-hydroxy-3-methoxy-5-(4-methoxyphenylazo)benzaldeneamino)ethyl]-3-methyl-3H-imidazole (HMY) and 1-[2-(2-hydroxy-3-methoxy-5-(4-methylphenylazo)benzaldene amino)ethyl]-3-methyl-3H-imidazole (HMM) were synthesized and characterized using spectral ...
Veena S. Kumar, Y. Sheena Mary, Kiran Pradhan, Dhiraj Brahman, Y. Shyma Mary, Goncagül Serdaroğlu, Ali Shokuhi Rad, M.S. Roxy   +7 more
doaj   +1 more source

Bases of inorganic and organic chemistry [PDF]

, 2016
Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are
Alami, D., Slavkova, M., Ved, M.
core  

Kinetics and mechanism of the reaction of acetonyl radical, CH3(CO)CH2, with Br2 [PDF]

, 2013
The low pressure fast discharge flow method with laser induced fluorescence detection of CH3C(O)CH2 was employed to study the kinetics of the reaction CH3C(O)CH2 + Br2 → CH3C(O)CH2Br + Br (1) at 298, 323 and 365 K.
Brudnik, Katarzyna, Dóbé, Sándor, Farkas, Mária, Jodkowski, Jerzy T., Sarzynski, Dariusz, Szabó, Emese, Zügner, Gábor L.   +6 more
core   +1 more source

Can electric fields drive chemistry for an aqueous microdroplet?

Nature Communications, 2021
Reaction rates of common organic reactions have been reported to increase by one to six orders of magnitude in aqueous microdroplets compared to bulk solution, but the reasons for the rate acceleration are poorly understood.
Hongxia Hao, I. Leven, T. Head‐Gordon
semanticscholar   +1 more source

Liquid biopsy epigenetics: establishing a molecular profile based on cell‐free DNA

Molecular Oncology, EarlyView.
Cell‐free DNA (cfDNA) fragments in plasma from cancer patients carry epigenetic signatures reflecting their cells of origin. These epigenetic features include DNA methylation, nucleosome modifications, and variations in fragmentation. This review describes the biological properties of each feature and explores optimal strategies for harnessing cfDNA ...
Christoffer Trier Maansson, Anders Lade Nielsen, Boe Sandahl Sorensen   +2 more
wiley   +1 more source

Cis‐regulatory and long noncoding RNA alterations in breast cancer – current insights, biomarker utility, and the critical need for functional validation

Molecular Oncology, EarlyView.
The noncoding region of the genome plays a key role in regulating gene expression, and mutations within these regions are capable of altering it. Researchers have identified multiple functional noncoding mutations associated with increased cancer risk in the genome of breast cancer patients.
Arnau Cuy Saqués, Aracele Martinez‐Mendez, John Crown, Alex Eustace   +3 more
wiley   +1 more source

Challenges in Simulating Light-Induced Processes in DNA

Molecules, 2016
In this contribution, we give a perspective on the main challenges in performing theoretical simulations of photoinduced phenomena within DNA and its molecular building blocks.
Philipp Marquetand, Juan J. Nogueira, Sebastian Mai, Felix Plasser, Leticia González   +4 more
doaj   +1 more source

Generalized Circuit Topology of Folded Linear Chains

iScience, 2020
Summary: A wide range of physical systems can be formally mapped to a linear chain of sorted objects. Upon introduction of intrachain interactions, such a chain can “fold” to elaborate topological structures, analogous to folded linear polymer systems ...
Anatoly Golovnev, Alireza Mashaghi
doaj   +1 more source

Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15 [PDF]

, 2002
Emission from the $2_{12}-1_{11}$ line of H$_2$CO has been detected and marginally resolved toward LkCa15 by the Nobeyama Millimeter Array. The column density of H$_2$CO is higher than that observed in DM Tau and than predicted by theoretical models of ...
Aikawa, Yuri, Blake, Geoffrey A., Momose, Munetake, Qi, Chunhua, Thi, Wing-Fai, van Dishoeck, Ewine F., van Zadelhoff, Gerd-Jan   +6 more
core   +6 more sources