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

#QSAR #cheminformatics #machinelearning #moleculardescriptors #compchem
#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
#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
🧬 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
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Size 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 21, 2025 at 10:30 AM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

3D-MoRSE descriptors have been proposed in "The Coding of the Three-Dimensional Structure of Molecules by Molecular..." via @pubs.acs.org

doi.org/10.1021/ci95...

Check #alvaDesc at: alvascience.com/alvadesc/
October 17, 2025 at 4:19 PM
Pandey & Roy (2025) apply read-across + ML to predict drug-induced cardiotoxicity using FDA DICTrank data 🧠

Descriptors from #alvaDesc enabled robust and interpretable models.

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

#QSAR #Cheminformatics #DrugSafety #InSilico #chemsky
October 17, 2025 at 4:18 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

RDF descriptors have been proposed in "Deriving the 3D structure of organic molecules from their infrared spectra" doi.org/10.1016/S092...

Check #alvaDesc at: alvascience.com/alvadesc/
October 16, 2025 at 7:58 AM
🦐 Predicting aquatic toxicity with the Daphnia magna QSAR models in alvaQSAR.

The Daphnia magna LC₅₀ (48 h) models provide a quantitative structure–activity relationship (QSAR) approach to predict acute aquatic toxicity according to OECD REACH Code 9.1.1.

Try it out at: alvascience.com/alva/qsar/
October 14, 2025 at 1:31 PM
In J. Comput.-Aided Mol. Des. Nagare et al. (2025) developed robust QSAR models for FGFR-1 inhibitors, combining computational & experimental validation.
Descriptors from #alvaDesc
🔗 alvascience.com/alvadesc/
📄 doi.org/10.1007/s108...

#QSAR #cheminformatics #FGFR1 #drugdiscovery #chemsky
October 14, 2025 at 1:22 PM
#descriptoroftheday #moleculardescriptors #qsar #cheminformatics #alvatips #chemsky

Aromaticity index has been proposed in "A new aromaticity index and its application to five-membered ring heterocycles" Tetrahedron doi.org/10.1016/S004...

Check #alvaDesc at: alvascience.com/alvadesc/
October 13, 2025 at 2:40 PM
New study in Chemosphere: QSTR models predict rat oral LD50 for 702 pharmaceuticals, offering an in silico alternative to animal testing (OECD guidelines).

🔗 doi.org/10.1016/j.ch...
October 13, 2025 at 2:39 PM