Results 11 to 20 of about 446,524 (307)

Prediction of Drug-Drug Interaction Using an Attention-Based Graph Neural Network on Drug Molecular Graphs

open access: yesMolecules, 2022
The treatment of complex diseases by using multiple drugs has become popular. However, drug-drug interactions (DDI) may give rise to the risk of unanticipated adverse effects and even unknown toxicity.
Yue-Hua Feng, Shao-Wu Zhang
doaj   +1 more source

User's interface for extraction of the chemical structure information from the systematic name of organic compound

open access: yesСистемный анализ и прикладная информатика, 2023
The user's interface «Nomenclature Generator» for extraction of the chemical structure information from the systematic name of organic compound represented according to IUPAC nomenclature is developed at the All-Russian Institute for Scientific and ...
L. A. Grigoryan
doaj   +1 more source

Molecular Graph Paper [PDF]

open access: yesAngewandte Chemie International Edition, 2017
AbstractWe present a self‐assembled template that consists of tetraphenylmethane derivatives and adopts a periodic lateral arrangement on a Au(111) surface with acetyl groups sticking out of the molecular film. By using the tip of a scanning tunneling microscope, these acetyl groups can be removed in a spatially controlled way without significantly ...
Marcin Lindner   +5 more
openaire   +4 more sources

An estimation of HOMO–LUMO gap for a class of molecular graphs

open access: yesMain Group Metal Chemistry, 2022
For any simple connected graph G of order n, having eigen spectrum μ 1 ≥ μ 2 ≥ ⋯ ≥ μ n with middle eigenvalues μ H and μ L, where H = ⌊(n + 1)/2⌋ and L = ⌈(n + 1)/2⌉, the HOMO ...
Hameed Saira   +3 more
doaj   +1 more source

Graphs in molecular biology [PDF]

open access: yesBMC Bioinformatics, 2007
Graph theoretical concepts are useful for the description and analysis of interactions and relationships in biological systems. We give a brief introduction into some of the concepts and their areas of application in molecular biology. We discuss software that is available through the Bioconductor project and present a simple example application to the
Falcon Seth   +4 more
openaire   +3 more sources

Graph Networks for Molecular Design [PDF]

open access: yesMachine Learning: Science and Technology, 2020
Deep learning methods applied to chemistry can be used to accelerate the discovery of new molecules. This work introduces GraphINVENT, a platform developed for graph-based molecular design using graph neural networks (GNNs). GraphINVENT uses a tiered deep neural network architecture to probabilistically generate new molecules a single bond at a time ...
Rocío Mercado   +6 more
openaire   +1 more source

Exploring Graph Traversal Algorithms in Graph-Based Molecular Generation [PDF]

open access: yesJournal of Chemical Information and Modeling, 2021
Here we explore the impact of different graph traversal algorithms on molecular graph generation. We do this by training a graph-based deep molecular generative model to build structures using a node order determined via either a breadth- or depth-first search algorithm.
Rocío Mercado   +2 more
openaire   +3 more sources

Relating Estrada index with spectral radius [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The Estrada index EE is a recently proposed molecular structure-descriptor, used in the modeling of certain features of the 3D structure of organic molecules, in particular of the degree of folding of proteins and other long-chain biopolymers.
IVAN GUTMAN   +4 more
doaj   +3 more sources

A graph theoretical approach to cis/trans isomerism [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
A simple graph-theory-based model is put forward, by means of which it is possible to express the energy difference between geometrically non-equivalent forms of a conjugated polyene.
Furtula Boris   +2 more
doaj   +1 more source

Expressions for Mostar and weighted Mostar invariants in a chemical structure

open access: yesMain Group Metal Chemistry, 2022
The bond-additive topological invariants are largely employed to recognize the characteristics of chemical graphs. They provide quantitative measures of peripheral shapes of molecules and attract considerable attention, both in the context of complex ...
Krishnan Sathish   +2 more
doaj   +1 more source

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