Alvascience
banner
alvascience.bsky.social
Alvascience
@alvascience.bsky.social
Software Solutions for Cheminformatics and QSAR
https://www.alvascience.com/

#QSAR #cheminformatics #machinelearning #moleculardescriptors #compchem
Pinned
🚀 alvaModel 3.0.0 is here!
Our biggest update yet brings:

✅ Decision Tree & Random Forest models
✅ AUROC, F1 Score, MCC, CI plots
✅ Radar plots, ROC & PR curves
✅ New interface for model comparison
✅ External prediction without alvaRunner
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

ISH – GETAWAY descriptor has been proposed in "Structure/Response Correlations and Similarity/Diversity Analysis by..." doi.org/10.1021/ci01... via
@pubs.acs.org

Check #alvaDesc at: alvascience.com/alvadesc/
November 17, 2025 at 1:40 PM
AlvaDesc has been used in "Finding a needle in the haystack: ADME and pharmacokinetics/pharmacodynamics characterization and optimization..." doi.org/10.1080/1746...

Check alvaDesc at: alvascience.com/alvadesc/

#moleculardescriptors #machinelearning #cheminformatics #chemsky
Finding a needle in the haystack: ADME and pharmacokinetics/pharmacodynamics characterization and optimization towards orally available bifunctional protein degraders
Degraders are an increasingly important sub-modality of small molecules as illustrated by an ever-expanding number of publications and clinical candidate molecules in human trials. Nevertheless, th...
doi.org
November 17, 2025 at 1:39 PM
Reposted by Alvascience
Characterization and Chemoinformatic Prediction of Retention Indices of Metabolites in Coffee and Plantain Byproduct Flours Using Gas Chromatography–Time-of-Flight Mass Spectrometry #JAFC pubs.acs.org/doi/10.1021/...
Characterization and Chemoinformatic Prediction of Retention Indices of Metabolites in Coffee and Plantain Byproduct Flours Using Gas Chromatography–Time-of-Flight Mass Spectrometry
This study analyzed chemical metabolites in composite flours (CF) produced from coffee pulp, plantain rachis, and rejected plantain, as well as their changes induced by extrusion. Seventy-two metabolites were identified by gas chromatography–time-of-flight mass spectrometry (GC-QTOF-MS) analysis in an HP-5ms capillary column. Results revealed that extrusion induced a selective modification of the metabolites. Some antinutritional compounds (caffeine, deoxyglucose, and galactosamine) were reduced. These effects contributed to improving the nutritional and functional quality of the CF. The chromatographic information from a dataset of 265 molecules was used to develop a conformation-independent quantitative structure-retention relationship (QSRR) model with good predictive capability (Q2 = 0.945), which was subsequently applied to estimate the retention index of the metabolites. This work provided an approach for metabolite profiling of agro-industrial CF and for predicting the chromatographic properties of new metabolites while advancing the valorization of coffee and plantain byproducts.
pubs.acs.org
November 17, 2025 at 12:43 PM
🇯🇵 Webinar: What’s New in alvaModel 3.0

Our Japanese reseller AffinityScience is hosting a webinar on Dec 16 (Tue) to introduce the new features of alvaModel 3.0.

🔗 Details (JP): affinity-science.com/news_2025111...

#alvaModel #QSAR #Cheminformatics #MachineLearning #Alvascience #chemsky #webinar
November 14, 2025 at 10:40 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

ITH – GETAWAY descriptor has been proposed in "Structure/Response Correlations and Similarity/Diversity Analysis by..." doi.org/10.1021/ci01... via
@pubs.acs.org

Check #alvaDesc at: alvascience.com/alvadesc/
November 13, 2025 at 2:28 PM
🦜 Predicting pesticide toxicity in birds
Samal et al. developed QSTR models using #alvaDesc descriptors to predict pesticide toxicity toward California quail.

🔗 Paper: doi.org/10.1039/D4EM...
🔗 alvaDesc: alvascience.com/alvadesc/

#QSAR #Cheminformatics #Ecotoxicology #InSilico #chemsky
Intelligent consensus prediction for addressing ecotoxicological effects of diverse pesticides on California quail
Birds occupy a major portion of the ecology and are considered a valuable species. In this modern era, the application of pesticides has increased and caused very severe harmful consequences to variou...
doi.org
November 13, 2025 at 2:27 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

V total size WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
November 12, 2025 at 10:31 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

D total accessibility WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
November 11, 2025 at 9:56 AM
🧴 Predicting plasticizer migration from PVC materials

Lee et al. quantified migration of 10 phthalate & non-phthalate plasticizers from PVC into artificial saliva and sweat.
Using molecular descriptors from #alvaDesc to predict migration behavior.

🔗 Paper: doi.org/10.1016/j.sc...
November 11, 2025 at 9:33 AM
We’re excited to celebrate a new milestone! 🎉

The chapter "alvaDesc: A Tool to Calculate and Analyze Molecular Descriptors and Fingerprints" doi.org/10.1007/978-... has now been cited over 300 times.

In total, alvaDesc is cited in 600+ scientific papers and book chapters.
alvaDesc: A Tool to Calculate and Analyze Molecular Descriptors and Fingerprints
In this chapter we will present alvaDesc, a software to calculate and analyze molecular descriptors and fingerprints. Molecular descriptors and fingerprints play an essential role in quantitative stru...
doi.org
November 10, 2025 at 1:22 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips

K global shape WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
November 10, 2025 at 10:19 AM
📢 Our Japanese reseller AffinityScience will host a free #alvaDesc online workshop on December 2 (Tue)!

The hands-on session will cover key features, tips, and practical exercises for molecular descriptor calculation.

🔗 Details affinity-science.com/news_2025103...

#Cheminformatics #QSAR #chemsky
alvaDescオンライン講習会 基礎コース(2025年12月)開催のご案内 | 株式会社アフィニティサイエンス
alvaDescオンライン講習会 基礎コース(2025年12月)のニュースです。
affinity-science.com
November 10, 2025 at 10:18 AM
🧬 New study in J. Chromatography Open predicts enantioseparations using achiral & chiral molecular descriptors.

Achiral descriptors were calculated with #alvaDesc.

🔗 doi.org/10.1016/j.jc...
➡️ alvascience.com/alvadesc/

#QSAR #Cheminformatics #Chromatography #ChiralRecognition
November 6, 2025 at 7:24 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Total symmetry WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
November 6, 2025 at 6:28 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

“A” Total size WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
November 5, 2025 at 9:02 AM
🚀 alvaModel 3.0.0 is here!
Our biggest update yet brings:

✅ Decision Tree & Random Forest models
✅ AUROC, F1 Score, MCC, CI plots
✅ Radar plots, ROC & PR curves
✅ New interface for model comparison
✅ External prediction without alvaRunner
November 4, 2025 at 11:07 AM
🐟 Predicting bioaccumulation with #alvaQSAR

The Bioconcentration Factor (BCF) #QSAR model predicts the log(BCF) of chemicals in aquatic organisms, a key step in assessing bioaccumulation and environmental risk under OECD REACH.

🔗 alvascience.com/alva/qsar/

#Cheminformatics #chemsky
October 31, 2025 at 8:42 AM
🔬 New research in Anal Chim Acta combines Linear Solvation Structure (LSS) and QSRR modeling to better predict chromatographic retention of phenolic compounds.

🔹 alvaDesc was used to calculate molecular descriptors, supporting mechanistic understanding and predictive accuracy.
October 30, 2025 at 1:52 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Total size WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
October 30, 2025 at 1:44 PM
🐟 New study in by Bhattacharyya, Das & Ojha (2025) integrates QSAR, q-RASAR, and ARKA to predict chemical toxicity in salmon species.

Using alvaDesc molecular descriptors, the stacked model achieved R² = 0.71 and Q² = 0.80.

📄 doi.org/10.1016/j.to...
#QSAR #Ecotoxicology
October 29, 2025 at 12:58 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips

Accessibility directional WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem....

Check #alvaDesc at: alvascience.com/alvadesc/
October 29, 2025 at 12:55 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Symmetry directional WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
October 28, 2025 at 8:30 AM
New QSPR study in J. Mol. Graphics & Modelling by Ouaissa et al. (2026) used #alvaDesc and #alvaModel to predict logP of psychoanaleptic drugs.

📄 doi.org/10.1016/j.jm...
🔗 alvascience.com

#Cheminformatics #MachineLearning #QSPR #DrugDiscovery
October 24, 2025 at 10:30 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Shape directional WHIM index has been described in "New molecular descriptors..." doi.org/10.1002/cem.... and "The Whim Theory..." doi.org/10.1080/1062...

Check #alvaDesc at: alvascience.com/alvadesc/
October 23, 2025 at 12:09 PM
New study in Results in Engineering uses #alvaDesc + ML to predict corrosion inhibition of phenyl phthalimide derivatives

ANN achieved R² > 0.9 using DFT- and MD-derived features.

📄 doi.org/10.1016/j.ri...
🔗 alvascience.com/alvadesc/

#Cheminformatics #MachineLearning #InSilico
October 22, 2025 at 12:34 PM