AI Medical Compendium Journal:
Physical chemistry chemical physics : PCCP

Showing 21 to 30 of 37 articles

Scalable graph neural network for NMR chemical shift prediction.

Physical chemistry chemical physics : PCCP
Graph neural networks (GNNs) have been proven effective in the fast and accurate prediction of nuclear magnetic resonance (NMR) chemical shifts of a molecule. Existing methods, despite their effectiveness, suffer from high space complexity and are th...

Molecular partition coefficient from machine learning with polarization and entropy embedded atom-centered symmetry functions.

Physical chemistry chemical physics : PCCP
Efficient prediction of the partition coefficient (log ) between polar and non-polar phases could shorten the cycle of drug and materials design. In this work, a descriptor, named 〈 - ACSFs〉, is proposed to take the explicit polarization effects in t...

New venues in electron density analysis.

Physical chemistry chemical physics : PCCP
We provide a comprehensive overview of the chemical information from electron density: not only how to extract information, but also how to obtain and how to assess the quality of the electron density itself. After introducing several indexes derived...

Design and applications of water irradiation devoid RF pulses for ultra-high field biomolecular NMR spectroscopy.

Physical chemistry chemical physics : PCCP
Water suppression is of paramount importance for many biological and analytical NMR spectroscopy applications. Here, we report the design of a new set of binomial-like radio frequency (RF) pulses that elude water irradiation while exciting or refocus...

Machine-learning-assisted molecular design of phenylnaphthylamine-type antioxidants.

Physical chemistry chemical physics : PCCP
In this study, a total of 302 molecular structures of phenylnaphthylamine antioxidants based on -phenyl-1-naphthylamine and -phenyl-2-naphthylamine skeletons with various substituents were modeled by exhaustive methods. Antioxidant parameters, includ...

Representing globally accurate reactive potential energy surfaces with complex topography by combining Gaussian process regression and neural networks.

Physical chemistry chemical physics : PCCP
There has been increasing attention in using machine learning technologies, such as neural networks (NNs) and Gaussian process regression (GPR), to model multi-dimensional potential energy surfaces (PESs). A PES constructed using NNs features high ac...

Accounting for molecular flexibility in photoionization: case of -butyl hydroperoxide.

Physical chemistry chemical physics : PCCP
-Butyl hydroperoxide (BuOOH) is a common intermediate in the oxidation of organic compounds that needs to be accurately quantified in complex gas mixtures for the development of chemical kinetic models of low temperature combustion. This work present...

Reproducing the invention of a named reaction: zero-shot prediction of unseen chemical reactions.

Physical chemistry chemical physics : PCCP
While state-of-art models can predict reactions through the transfer learning of thousands of samples with the same reaction types as those of the reactions to predict, how to prepare such models to predict "unseen" reactions remains an unanswered qu...

DLSSAffinity: protein-ligand binding affinity prediction a deep learning model.

Physical chemistry chemical physics : PCCP
Evaluating the protein-ligand binding affinity is a substantial part of the computer-aided drug discovery process. Most of the proposed computational methods predict protein-ligand binding affinity using either limited full-length protein 3D structur...

Multitask deep learning with dynamic task balancing for quantum mechanical properties prediction.

Physical chemistry chemical physics : PCCP
Predicting quantum mechanical properties (QMPs) is very important for the innovation of material and chemistry science. Multitask deep learning models have been widely used in QMPs prediction. However, existing multitask learning models often train m...