Thymine Adsorption onto Cation Exchanged Montmorillonite Clay: Role of Biogenic Divalent Metal Cations in Prebiotic Processes of Chemical Evolution.

The adsorption of thymine, a key pyrimidine base of deoxyribonucleic acid (DNA) on montmorillonite clay (Mnt) exchanged with metal ions (Mnt-M, M  = Fe, Co, Cu, Ca, and Mg) over a range of concentration (7.0 × 10 M to 12.0 × 10 M) and pH (4.

Affinity of Smectite and Divalent Metal Ions (Mg(2+), Ca(2+), Cu(2+)) with L-leucine: An Experimental and Theoretical Approach Relevant to Astrobiology.

Earth is the only known planet bestowed with life. Several attempts have been made to explore the pathways of the origin of life on planet Earth. The search for the chemistry which gave rise to life has given answers related to the formation of biomonomers, and their adsorption on solid surfaces has gained much attention for the catalysis and stabilization processes related to the abiotic chemical evolution of the complex molecules of life.

Surface interaction of L-alanine on hematite: an astrobiological implication.

In the present work, surface interaction of L-alanine (L-ala) has been investigated on hematite (α-Fe2O3), an abundant mineral on Mars, as a function of time (5 min-48 h), pH (4.0 and 6.20 ± 0.