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O.A. Janna

affiliation not provided to SSRN

  • affiliation not provided to SSRN

SCHOLARLY PAPERS

2

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104

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0

Scholarly Papers (2)

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1.

COMPARATIVE SYNTHESIS AND CHARACTERIZATION OF GRAPHENE QUANTUM DOTS VIA HYDROTHERMAL, MICROWAVE-ASSISTED, AND OXIDATIVE CLEAVAGE METHODS

Number of pages: 35 Posted: 09 Apr 2026
W.N. Zarifah W. Azamuddin, O.A. Janna, Azzreena Mohamad Azzeme, Shafinaz Abd Gani, Rosfarizan Mohamad, Murni Halim, Helmi Wasoh and Zulfazli M. Sobri
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Universiti Putra Malaysia, affiliation not provided to SSRN, Universiti Putra Malaysia, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 58 (1,063,489)

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Graphene Quantum Dots, Nanomaterial, Hydrothermal synthesis, Microwave-assisted synthesis, Oxidative cleavage

2.

Purification and characterization of rabbit polyclonal immunoglobulin G by using DEAE-ion exchange column and dynamic light scattering

Number of pages: 18 Posted: 12 Nov 2025
S.H.S Mariam, Roslan Noorain, Chien Wei Ooi, Wen Siang Tan, A. Arbakariya, O.A. Janna and Beng Ti Tey
affiliation not provided to SSRN, affiliation not provided to SSRN, Monash University - Monash University Malaysia, Universiti Putra Malaysia, affiliation not provided to SSRN, affiliation not provided to SSRN and Monash University - Monash University Malaysia
Downloads 46 (1,109,210)

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Immunoglobulin G purification, DEAE ion-exchange chromatography, dynamic light scattering, hepatitis B core antigen (HBcAg), single step purification