Derivation of mathematical closed form expressions for certain irregular topological indices of 2D nanotubes

A Ullah, S Zaman, A Hussain, A Jabeen, MB Belay - Scientific Reports, 2023 - nature.com
A numeric quantity that characterizes the whole structure of a network is called a topological
index. In the studies of QSAR and QSPR, the topological indices are utilized to predict the …

QSPR analysis of some novel drugs used in blood cancer treatment via degree based topological indices and regression models

S Zaman, HSA Yaqoob, A Ullah… - Polycyclic Aromatic …, 2024 - Taylor & Francis
Topological indices (TIs) have several biological applications in the treatment of blood
cancer. TIs can be used to predict the efficacy of drugs in cancer treatment by providing …

Modified reverse degree descriptors for combined topological and entropy characterizations of 2D metal organic frameworks: applications in graph energy prediction

ARA Kalaam, AB Greeni, M Arockiaraj - Frontiers in Chemistry, 2024 - frontiersin.org
Topological descriptors are widely utilized as graph theoretical measures for evaluating the
physicochemical properties of organic frameworks by examining their molecular structures …

On the construction of some bioconjugate networks and their structural modeling via irregularity topological indices

A Ullah, S Zaman, A Hamraz, M Muzammal - The European Physical …, 2023 - Springer
Bioconjugate networks refer to networks that are formed by connecting different molecules
or particles (such as proteins, enzymes, or nanoparticles) through covalent or non-covalent …

Mathematical modeling and topological graph description of dominating David derived networks based on edge partitions

S Zaman, W Ahmed, A Sakeena, KB Rasool… - Scientific Reports, 2023 - nature.com
Chemical graph theory is a well-established discipline within chemistry that employs
discrete mathematics to represent the physical and biological characteristics of chemical …

Computational insights into zinc silicate MOF structures: topological modeling, structural characterization and chemical predictions

X Li, M Jamal, A Ullah, EE Mahmoud, S Zaman… - Scientific Reports, 2024 - nature.com
Metal-organic frameworks (MOFs) play a pivotal role in modern material science, offering
unique properties such as flexibility, substantial pore space, distinctive structure, and large …

Predictive potential of K‐Banhatti and Zagreb type molecular descriptors in structure–property relationship analysis of some novel drug molecules

A Ullah, S Jabeen, S Zaman, A Hamraz… - Journal of the …, 2024 - Wiley Online Library
Topological indices (TIs) can be used to forecast molecules' biological activity,
physicochemical features, and toxicity. The use of topological indices and regression …

Study of mean-first-passage time and Kemeny's constant of a random walk by normalized Laplacian matrices of a penta-chain network

S Zaman, M Mustafa, A Ullah, MK Siddiqui - The European Physical …, 2023 - Springer
The mean first-passage time (MFPT), which refers to the expected time it takes for a system
to reach a state j given its current state i, that is t ji, falls under the fundamental theory of …

Comparative study of Sombor index and its various versions using regression models for top priority polycyclic aromatic hydrocarbons

B Kirana, MC Shanmukha, A Usha - Scientific Reports, 2024 - nature.com
The aromatic compounds having structural configurations with two or more fused benzene
rings are the polycyclic aromatic hydrocarbons (PAHs). Topological indices are valuable …

Exploring the role of topological descriptors to predict physicochemical properties of anti-HIV drugs by using supervised machine learning algorithms

W Ahmed, S Zaman, E Asif, K Ali, EE Mahmoud… - BMC chemistry, 2024 - Springer
In order to explore the role of topological indices for predicting physio-chemical properties of
anti-HIV drugs, this research uses python program-based algorithms to compute topological …