Dr.P.SHYAMALA

Scopus Publications

Design, synthesis and biological evaluation of novel chalcone-derived thioxopyridine and pyrazolopyridine compounds as antimicrobial agents
Gaber Algaber, P. Shyamala, Zaccaria Dammag, Mohammed Al-haddad
Scientific Reports, 2026
Fabrication of bimetallic (Mg-V)-doped TiO2 nanostructure via microwave-assisted sol-gel approach for enhanced electrocatalytic detection and photocatalytic degradation of hazardous tetracycline
Samuel Chufamo Jikamo, P. Shyamala, Singupilla Sai Supriya, Sandhya Rani Nayak, NageswaraRao Kadiyala, et al.
Next Materials, 2026
Correction: Highly sensitive electrochemical detection of hazardous 2,4-dinitrophenylhydrazine using MgCo-TiO2/g-C3N4 heterostructure nanocomposites
Samuel Chufamo Jikamo, T. Siva Rao, P. Shyamala, Singupilla Sai Supriya, Sandhya Rani Nayak, et al.
Rsc Advances, 2026
Correction for ‘Highly sensitive electrochemical detection of hazardous 2,4-dinitrophenylhydrazine using MgCo-TiO 2 /g-C 3 N 4 heterostructure nanocomposites’ by Samuel Chufamo Jikamo et al. , RSC Adv. , 2025, 15 , 45855–45873, https://doi.org/10.1039/D5RA07106B
Forced Degradation Studies of Dobutamine and Isolation, Identification, and Characterization of Potential Degradation Impurity by Preparative HPLC, LC–MS/MS. Development and Validation of Stability Indicative UPLC Method
Babu Reddy Goguladinne, Pulipaka Shyamala, K. M. V. Narayana Rao
Biomedical Chromatography, 2025
Dobutamine (DB) is a β1‐adrenergic agonist with weak β2 activity and α1 selective activity, which is used clinically in cases of cardiogenic shock. Most of the available literature methods for DB that are LCMS incompatible have limitations for the identification of impurities. The current study describes forced degradation studies of DB and the identification of impurities by mass analysis, assigning structure to the major degradant, and the development and validation of an LCMS‐compatible UPLC method. Impurity A (dopamine) highly polar impurity listed in the dopamine US Pharmacopeial Monograph, was retained in the developed method without an ion pair reagent. The method has been developed using Waters Acquity UPLC system equipped with Acquity UPLC HSS PFP column (2.1 mm × 100 mm, 1.8 μ), 0.05% TFA in water:ACN (95:5 %v/v) as Mobile Phase A, and 0.05% TFA in water:ACN (5:95 %v/v) as Mobile Phase B using a gradient program. DB degradation behavior was studied by subjecting it to acidic, basic, neutral, and oxidative conditions as per ICH guideline Q1A (R2). One of the major degradants was isolated by preparative HPLC and identified characterization by LCMS/MS and HRMS. The newly developed UPLC method was found to be specific with respect to degradation products, and the method has been validated according to the ICH guidelines.
Structural Modification and Performance Enhancement of Zirconium Oxide with Copper Doping for Photo Catalytic and Antibacterial Applications
J. Suresh Kumar, P. Shyamala, S. Gouthamsri, M. Ramanaiah
Research Journal of Chemistry and Environment, 2025
Zirconium oxide (ZrO2) and copper-doped zirconium oxide (Cu-ZrO2) nanoparticles (NPs) were synthesized via a sol-gel combustion method to study the influence of doping on their photocatalytic and antimicrobial properties. X-ray diffraction (XRD) analysis confirmed a mixed tetragonal and monoclinic phase structure with decreasing crystallite size at higher dopant concentrations. The NPs were characterized using FTIR, XRD, SEM-EDX, XPS and UV-Vis spectroscopy. SEM revealed spherical morphology with minimal agglomeration. Under visible light, Cu-ZrO2 NPs exhibited enhanced photo- catalytic activity, degrading 96% of malachite green (MG) dye within 120 min. Antimicrobial assays demonstrated superior activity of Cu-ZrO2 against S.aureus, with an inhibition zone of 8 mm compared to E.coli.
Highly sensitive electrochemical detection of hazardous 2,4-dinitrophenylhydrazine using MgCo-TiO2/g-C3N4heterostructure nanocomposites
Samuel Chufamo Jikamo, T. Siva Rao, P. Shyamala, Singupilla Sai Supriya, Sandhya Rani Nayak, et al.
Rsc Advances, 2025
In this study, MgCo-TiO 2 /g-C 3 N 4 heterostructure nanocomposites were successfully synthesized for the electrochemical detection of 2,4-dinitrophenylhydrazine.
Synthesis and evaluation of edaravone-1,3,4-oxadiazole derivatives as potential anti-cancer inhibitors
Malapati Venkateswara Reddy, P. Shyamala, Arvind Kumar Sharma, Preeti Nanda Sahu, Krishnaveni Subramaniyam, et al.
New Journal of Chemistry, 2025
Ederavone derivatives exhibits anticancer activities and inhibits EGFR kinase – an in silico and in vitro approach.
Efficient Removal of Methylene Blue and Inactivation of Pathogens by Cobalt Doped ZrO2 Nanoparticles
J. Suresh Kumar, P. Shyamala, S. Gouthamsri, M. Ramanaiah
Ecs Journal of Solid State Science and Technology, 2025
In this investigation, we synthesized a pure ZrO2 and Co-doped ZrO2 nanoparticles, through glycine assisted sol-gel method. The phase purity of prepared nanoparticles was conformed through X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) techniques. The morphology and average crystallite size of pure and Co-doped ZrO2 nanoparticles was investigated using scanning electron microscopy (SEM), and observed average crystallite size were 24 (Co-doped ZrO2) and 20 nm (pure ZrO2). The Brunauer–Emmett–Teller (BET) technique was employed to study the surface area of the prepared nanoparticles, and observed surface area were 103 m2 g−1 (pure ZrO2) and 140 m2 g−1 (Co-doped ZrO2). High photocatalytic efficiency was observed in Co-doped ZrO2 nanoparticle due to improved surface area. The degradation of MB dye under visible light irradiation at various pH levels was also tested using the synthesised nanoparticles’ photo-catalytic capability. The prepared catalyst was the most effective for inactivation of S. aureus and may be utilized at large scale in treat wastewater effectively. It is noteworthy that the photocatalyst exhibits stability and reusability across several cycles. The work offers important new information about Co-doped ZrO2 nanoparticle potential as an effective antimicrobial agents and an effective photocatalyst for environmental clean-up.
Stereoselective reduction of enantiopure α-l-amino-β-keto esters using oxazaborolidine catalysts for the synthesis of statine analogues
Malapati Venkateswara Reddy, Shyamala Pulipaka, Arvind Kumar Sharma
Organic Communications, 2025
Determination of ternary stability constants for metal complexes of succinic acid dihydrazide and glycine using pH-Metric analysis in aqueous medium
B. Uma Rani, D. Nirmala Devi, P. Shyamala, D. Aditya Deepthi, A. Satyanarayana
Journal of the Indian Chemical Society, 2025
Amide Functionalized Novel Pyrrolo-pyrimidine Derivative as Anticancer Agents: Synthesis, Characterization and Molecular Docking Studies
Praveen Kumar Bandaru, Satya Kameswara Rao Nidasanametla, Pulipaka Shyamala
Anti Cancer Agents in Medicinal Chemistry, 2025
Cu/H–ZSM-5: A highly active and selective catalyst for the production of γ-valerolactone from biomass-derived levulinic acid
Vijayanand Perupogu, Suresh Babu Gadamani, Rajendiran Rajesh, Putra Kumar Balla, Shyamala Pulipaka, et al.
Journal of Chemical Sciences, 2024
Surfactant Micelles as Catalysts: Kinetic Modelling and Key Models
Karrı Lavanya, Srikanth Vemuri, Shyamala P, Nagalakshmi K V, Ravi Vital Kandisa
Journal of the Turkish Chemical Society Section A Chemistry, 2024
Stress degradation study of Etoricoxib, isolation, and characterization of major degradation impurity by preparative high-performance liquid chromatography, liquid chromatography-mass spectrometry, and nuclear magnetic resonance: Validation of ultra-performance liquid chromatography method
Babu Reddy Goguladinne, Pulipaka Shyamala, K. M. V. Narayana Rao
Separation Science Plus, 2024
Catalysis in SDS and CTAB micellar media: Kinetics of base hydrolysis of Bis(2,4,6-tripyridyl-striazine) iron (II)
Kumari B., Leela, P. Shyamala, K.V. Nagalakshmi
Research Journal of Chemistry and Environment, 2024
Novel Pyrrolo-Pyrimidine Derivatives Bearing Amide Functionality as Potential Anticancer Agents: Synthesis and Molecular Docking Studies
Praveen Kumar Bandaru, N.S. Kameswara Rao, P. Shyamala
Asian Journal of Chemistry, 2024
Cloud Point Extraction Method for Separation and Pre-concentration of Molybdenum and Zirconium Using Mixture of Surfactants from Natural Waters and their Determination by Spectrophotometry
K.V. Nagalakshmi, P. Shyamala, Sk. Ameer Khan, Deva H Puranam, and
Methods and Objects of Chemical Analysis, 2024
Green synthesized Fe3O4@CD nanocomposites using Acacia caesia leaves: In vitro biological properties and cytotoxicity assessment
M. Padmaja, P. Shyamala, V. Durga Praveena, G. Tejaswini
Next Nanotechnology, 2024
Chemical Modelling Potentiometric Study on the Complex Formation of Ditopic Sebacic Acid Dihydrazide with Co2+ and Ni2+ in Aqueous Medium
Rama Krishna Saladi, Shyamala Pulipaka, Satyanarayana Atreyapu
Research Journal of Chemistry and Environment, 2023
Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite
Chandra Sekhar Beera, B. Dhanalakshmi, D. Nirmala Devi, D. Vijayalakshmi, Akanksha Mishra, et al.
Gels, 2023
Semi-empirical calculations and potentiometric studies on complexation equilibria of 2,2’-Bipyridyl in SDS and TBAB micellar media
P.S.S. Chakravarthi, P. Shyamala, Rao G. Nageswara, V. Srikanth
Research Journal of Chemistry and Environment, 2023
Characterization of famotidine API and simultaneous Quantification of its organic impurities by UPLC
Gudibanda Chandrasekhar Reddy, Pulipaka Shyamala, Rallabhandi Murali Krishna, Kapavarapu Maruthi Venkata Narayanarao, Mannem Durga Babu
Research Journal of Pharmacy and Technology, 2023
Simultaneous Gas Chromatographic Analysis of Isopropyl Alcohol, t-Butanol, 2-Bromo Propane, Toluene and Acetic Acid in Teneligliptin Drug
Durgababu Rapeti, Kapavarapu Maruthi Venkata Narayanarao, Pulipaka Shyamala, Rallabhandi Murali Krishna
Research Journal of Pharmacy and Technology, 2023
Iron-Catalysed [3+3] Annulation of Oxime Acetates and Enaminones towards the Synthesis of Multi-Substituted Pyridines
Varaprasad Bodala, Rajitha Lakshmi Podugu, Kumari Yettula, Padmarao Gollamudi, Siddaiah Vidavalur, et al.
Chemistry an Asian Journal, 2023
Effect of AOT/Heptane Reverse Micelles on Oxidation of Ferroin by Metaperiodate: Kinetic and Mechanistic Aspects
Leela Kumari BODASİNGİ, Shyamala PULİPAKA, Venkata Nagalakshmi KİLANA
Journal of the Turkish Chemical Society Section A Chemistry, 2023

RECENT SCHOLAR PUBLICATIONS

Forced Degradation Studies of Dobutamine and Isolation, Identification, and Characterization of Potential Degradation Impurity by Preparative HPLC, LC–MS/MS. Development and …
BR Goguladinne, P Shyamala, KMVN Rao
Biomedical Chromatography 39 (12), e70211 , 2025
2025
Citations: 1
Efficient Removal of Methylene Blue and Inactivation of Pathogens by Cobalt Doped ZrO 2 Nanoparticles
JS Kumar, P Shyamala, S Gouthamsri, M Ramanaiah
ECS Journal of Solid State Science and Technology 14 (5), 053009 , 2025
2025
Amide functionalized novel pyrrolo-pyrimidine derivative as anticancer agents: synthesis, characterization and molecular docking studies
PK Bandaru, SKR Nidasanametla, P Shyamala
Anti-Cancer Agents in Medicinal Chemistry 25 (6), 420-432 , 2025
2025
Citations: 2
Determination of ternary stability constants for metal complexes of succinic acid dihydrazide and glycine using pH-Metric analysis in aqueous medium
BU Rani, DN Devi, P Shyamala, DA Deepthi, A Satyanarayana
Journal of the Indian Chemical Society 102 (4), 101642 , 2025
2025
Synthesis and evaluation of edaravone-1, 3, 4-oxadiazole derivatives as potential anti-cancer inhibitors
MV Reddy, P Shyamala, AK Sharma, PN Sahu, K Subramaniyam, ...
New Journal of Chemistry 49 (27), 11870-11884 , 2025
2025
Citations: 5
Cloud Point Extraction Method for Separation and Preconcentration of Molybdenum and Zirconium Using Mixture of Surfactants from Natural Waters and their Determination by …
KV Nagalakshmi, P Shyamala, SA Khan, DH Puranam
Methods & Objects of Chemical Analysis/Metody & Obekty Himičeskogo Analiza … , 2024
2024
Citations: 4
Surfactant Micelles as Catalysts: Kinetic Modeling and Key Models
K Lavanya, S Vemuri, RV Kandisa
Journal of the Turkish Chemical Society Section A: Chemistry 11 (3), 1165-1180 , 2024
2024
Citations: 1
Biogenic Copper Oxide Nanoparticles from Acacia caesia: A study on Antifungal, In vitro Antioxidant, and Cytotoxic properties.
M Padmaja, P Shyamala, DH Puranam
Frontiers in Health Informatics 13 (5) , 2024
2024
Stress degradation study of Etoricoxib, isolation, and characterization of major degradation impurity by preparative high‐performance liquid chromatography, liquid …
BR Goguladinne, P Shyamala, KMVN Rao
Separation Science Plus 7 (3), 2300106 , 2024
2024
Citations: 6
NOVEL PYRROLO-PYRIMIDINE DERIVATIVES BEARING AMIDE FUNCTIONALITY AS POTENTIAL ANTICANCER AGENTS: SYNTHESIS AND MOLECULAR DOCKING STUDIES
PK BANDARU, NSK RAO, P SHYAMALA
ASIAN JOURNAL OF CHEMISTRY 36 (12), 2827-2836 , 2024
2024
Green synthesized Fe3O4@ CD nanocomposites using Acacia caesia leaves: In vitro biological properties and cytotoxicity assessment
M Padmaja, P Shyamala, VD Praveena, G Tejaswini
Next Nanotechnology 6, 100093 , 2024
2024
Citations: 18
Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite
CS Beera, B Dhanalakshmi, DN Devi, D Vijayalakshmi, A Mishra, ...
Gels 9 (11), 873 , 2023
2023
Citations: 8
Characterization of famotidine API and simultaneous Quantification of its organic impurities by UPLC
GC Reddy, P Shyamala, RM Krishna, KMV Narayanarao, MD Babu
Research Journal of Pharmacy and Technology 16 (3), 1421-1427 , 2023
2023
Citations: 3
Simultaneous Gas Chromatographic Analysis of Isopropyl Alcohol, t-Butanol, 2-Bromo Propane, Toluene and Acetic Acid in Teneligliptin Drug
D Rapeti, KMV Narayanarao, P Shyamala, RM Krishna
Research Journal of Pharmacy and Technology 16 (2), 635-639 , 2023
2023
Citations: 1
Relative Solution Equilibria and Chemical Speciation study of Divalent Manganese and Cobalt Ternary complexes with Azelaic acid dihydrazide (AZDH), L-Proline & L-Lysine
DN Devi, BU Rani, P Shyamala, A Satyanarayana
2023
An efficient, concise, and scalable synthesis of Izenamide A and B via asymmetric reduction of γ-amino β-keto ester using 2-methyl-CBS-oxazaborolidine catalysts
MV Reddy, P Shyamala, AK Sharma
Results in Chemistry 5, 100756 , 2023
2023
Citations: 4
Acido Basic Equilibria of Non-Toxic, Ditopic Azelaic and Terephthalic Acid Dihydrazides & Amino Acids Proline and Lysine in Aqueous Medium
A DIHYDRAZIDES
2023
Citations: 1
The Effect of Aurintricarboxylic Acid (ATA) and Copper-aurin-tricarboxylic Acid Complex (Cu-ATA) for Selective Inhibition on the Growth of Gram-positive and Gram-negative Bacteria
GV Ramana, S Pulipaka, C Polepalli
Journal of Food Chemistry & Nanotechnology| Volume 9 (2), 44 , 2023
2023
Residual Solvents by GC-HS Procedure for Etoricoxib: Method Development and Validation Report
K Sivaprasad, VDDP Venkata, KMV Narayanarao, P Shyamala
Research Journal of Pharmacy and Technology 15 (11), 5043-5049 , 2022
2022
A fast, validated UPLC method coupled with PDA-QDa detectors for impurity profiling in betamethasone acetate and betamethasone phosphate injectable suspension and isolation …
PMK Raju, P Shyamala, BV Narayana, H Dantuluri, RV Bhupatiraju
Annales Pharmaceutiques Françaises 80 (6), 837-852 , 2022
2022
Citations: 3

MOST CITED SCHOLAR PUBLICATIONS

Photocatalytic degradation of polyethylene plastics by NiAl2O4 spinels-synthesis and characterization.
PSRM Challarapu Venkataramana, Satish Mohan Botsa
Chemosphere 265, 129021 , 2020
2020
Citations: 148
Catanionic mixed micellar cloud point extraction of metal ions in coal fly ash samples and their determination by CS-ETAAS
R Kumar, P Shyamala
Journal of Environmental Chemical Engineering 7 (3), 103119 , 2019
2019
Citations: 21
Green synthesized Fe3O4@ CD nanocomposites using Acacia caesia leaves: In vitro biological properties and cytotoxicity assessment
M Padmaja, P Shyamala, VD Praveena, G Tejaswini
Next Nanotechnology 6, 100093 , 2024
2024
Citations: 18
Copper-catalyzed efficient access to 2, 4, 6-triphenyl pyridines via oxidative decarboxylative coupling of aryl acetic acids with oxime acetates
B Varaprasad, KB Kumar, V Siddaiah, P Shyamala, L Chinnari
New Journal of Chemistry 45 (34), 15205-15209 , 2021
2021
Citations: 14
• Speciation Study on the Interaction of Some Divalent Transition Metal Ions with Succinic acid Dihydrazide in Aqueous Medium
PS Dunkana Negussa Kenie * , A.Satyanarayana
Acta Chim. Slov. 60, 807–812 , 2013
2013
Citations: 12
• Kinetics of dissociation of tris – (2, 2’ –bipyridyl) iron (II) in the water pools of CTAB reverse micelles.
KR P.Shyamala, P.V.Subba Rao
Ind. J. Chem. 39, 643 , 2000
2000
Citations: 12
Chemical Speciation Study of Ternary Complexes of Cu (II) with Succinic Acid Dihydrazide and Some Amino Acids in Aqueous Solution
DN Kenie, A Satyanarayana, P Shyamala
Chemistry and Materials Research 7 (4), 93-102 , 2015
2015
Citations: 11
• Catalytic effect of CTAB reverse micelles on the kinetics of dissociation of bis(2,4,6-tripyridyl-s-triazine) iron(II)
K.V.Nagalakshmi, V.Srikanth, M.padma, P.Shyamala*, A.Satyanarayana, P.V ...
Transition metal chemistry 38 (5), 523-527 , 2013
2013
Citations: 10
Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite
CS Beera, B Dhanalakshmi, DN Devi, D Vijayalakshmi, A Mishra, ...
Gels 9 (11), 873 , 2023
2023
Citations: 8
Determination of thermodynamic parameters for cloud point extraction of Arsenazo-III and Magdala Red dyes using mixed micelles: An essential requirement for high performance
SA Khan, DR Krishna, P Shyamala
Journal of the Indian Chemical Society 98 (10), 100142 , 2021
2021
Citations: 8
Mixed micellar Cloud Point Extraction and spectrophotometric determination of Iron (Fe2+) using 1, 10-phenanthroline: Effect of sodium nitroprusside on extraction efficiency
SAPS K. Ravi Kumar
ASIAN JOURNAL OF CHEMISTRY 31 (7), 1591-1594 , 2019
2019
Citations: 8
Kinetic of oxidation of methyl orange by vanadium (V) under conditions VO2 and decavanadates coexist: Catalysis by Triton X-100 micellar medium
V Srikanth, P Shyamala, KS Rao
Chem. Int 3 (1), 39 , 2017
2017
Citations: 8
• Kinetics of Oxidation of Iodide by Vanadium (V):Catalysis by the Water Pools of CTAB Reverse Micelles
PVSR P.Shyamala
Kinetics and Catalysis, 51 (No. 2), 207–210 , 2010
2010
Citations: 8
Kinetics of dissociation of tris-(2, 2'-bipyridyl) and tris-(1, 10-phenanthroline) iron (II) complexes in the presence of OH^-in the water pools of CTAB reverse micelles
G Venkateswarlu, P Syamala, PVS Rao, K Ramakrishna
INDIAN JOURNAL OF CHEMISTRY SECTION A 41 (7), 1410-1414 , 2002
2002
Citations: 8
A novel synergetic salt-and acid-induced ligandless mixed micelle cloud point extraction of ultratrace levels of Cd, Hg, Bi, and Tl from petrochemical effluents followed by …
KR Kumar, K Madhavi, P Shyamala, NN Meeravali, SJ Kumar
Atomic Spectrosc 39 (3), 118-125 , 2018
2018
Citations: 7
Shift in pKa of 1, 10-phenanthroline in TBAB and PEG-400 micellar media: A potentiometric study
AG Assefa, R Srinivasu, P Shyamala, GN Rao
American Journal of Analytical Chemistry 9 (09), 397-405 , 2018
2018
Citations: 7
Spectrophotometric determination of Neodymium(III), Samarium(III), Gadolinium(III), Terbium(III), Dysprosium(III) and Holmium(III) in Micellar media
IMR Asha mathew, AV.Krishna Kumar, P.Shyamala*, A.Satyanarayana
Indian Journal of Chemical Technology 19, 331-336 , 2012
2012
Citations: 7
Stress degradation study of Etoricoxib, isolation, and characterization of major degradation impurity by preparative high‐performance liquid chromatography, liquid …
BR Goguladinne, P Shyamala, KMVN Rao
Separation Science Plus 7 (3), 2300106 , 2024
2024
Citations: 6
Cloud point extraction and spectrophotometric studies for the extraction of Nigrosin and Aniline blue dyes using mixed micelles of TBAB and Triton X-114.
DSPS D. Radha Krishna
Asian journal of chemistry, 1351-1356, 33(6), 2021. 33 (6), 1351-1356 , 2021
2021
Citations: 6
• Kinetics of oxidation of vanadium (IV) by Iron (III)-I, 10-Phenanthroline complex: Micellar Effect of Sodium Dodecyl sulphate.
PVSR P.Shyamala,
J. Molecular Catalysis A: Chemical, . 123, 103 , 1997
1997
Citations: 6

Dr.P.SHYAMALA

EDUCATION

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

MOST CITED SCHOLAR PUBLICATIONS