Dr. Ravi Prakash Ojha earned his Ph.D. from the School of Materials Science and Technology at the Indian Institute of Technology (IIT), Banaras Hindu University (BHU), in 2022. He completed his M.Sc. in Chemistry from the Department of Chemistry, Institute of Science, BHU, Varanasi, India, in 2015. Currently, Dr. Ojha serves as an Assistant Professor in the Department of Chemistry at Shri Lal Bahadur Shastri Degree College, affiliated with Dr. Ram Manohar Lohiya Avadh University, Ayodhya. He has authored over 15 research articles and book chapters in prestigious international peer-reviewed journals. His research focuses on developing nanomaterial-modified substrates for sensing applications.
EDUCATION
PhD from Indian Institute of Technology (Banaras Hindu University) Varanasi, India with thesis title "Functional Nanomaterials Modified Transducers for Sensor Applications" in 2022
M.Sc. (Chemistry) from Department Of Chemistry, Banaras Hindu University (2013-2015) with CGPA: 8.96
B.Sc. (Hons) Chemistry from Faculty of Science, Banaras Hindu University (2010-2013) with CGPA: 9.09
Intermediate and High School from St. Mary’s School Nai-Bazar, Bhadohi (2007-2009)
RESEARCH, TEACHING, or OTHER INTERESTS
Analytical Chemistry, Electrochemistry, Materials Chemistry, Polymers and Plastics
18
Scopus Publications
276
Scholar Citations
8
Scholar h-index
8
Scholar i10-index
Scopus Publications
3D Printing and its Impact on Composite Materials Development Priya Singh, Ravi Prakash Ojha, Santosh Kumar Hybrid Materials and Advanced Manufacturing Techniques and Applications Volume 1, 2026 3D printing has transformed materials research, especially in composites, by enabling complex, tailored structures unattainable through traditional methods. This chapter reviews key 3D printing techniques and their applications in composites—spanning polymers, metals, and ceramics. It explores how additive manufacturing enhances design flexibility, reduces weight, and improves performance across aerospace, biomedical, and automotive sectors. Challenges like scale-up, material limitations, and regulations are also addressed. The chapter concludes with a forwardlooking view of 3D printing’s role in sustainable, next-generation composite manufacturing.
Smartphone-Based Noninvasive Glucose Monitoring in Diabetic Patients Utilizing Enhanced Chemiluminescence Imaging Technique Priya Singh, Nupur Kumari, Ravi Prakash Ojha, Narsingh Raw Nirala, Rajiv Prakash Physica Status Solidi A Applications and Materials Science, 2023 The current study aims for a simple, rapid, and smartphone‐based enhanced chemiluminescence (eCL) technique for sensitively detecting glucose in human urine. Herein, 1,3‐propanedithiol cross‐linked gold nanoparticles (GNPs‐PDT) via a simple reduction method is synthesized. Further, it is characterized by UV–vis spectroscopy and transmission electron microscopy. The synthesized GNPs‐PDT is found to possess oxidase mimetic activity and generate superoxide radicals from dissolved oxygen, which causes the oxidation of luminol to give a strong and stable CL signal. On the introduction of glucose into the reaction system, a CL quenching phenomenon is observed owing to the tendency of superoxide radicals to oxidize glucose into gluconic acid. Employing the quenching effect of glucose on the eCL signals, a sensor is designed for glucose detection in human urine samples. Under optimized conditions, the proposed method works in a dynamic range from 0.25 to 2 mM (R 2 = 0.98) with a detection limit of 0.36 mM. In addition, a simple and portable smartphone‐based imaging technique analyzed by Image J software for eCL‐based glucose sensing is proposed. The developed proof of concept provides good correlations of glucose detection in diabetic patients.
Isoniazid (INH) a tuberculosis drug detection using turn-off fluorescent [Ce (o-Van) 3 (H2O) 3] probe in real samples S Jana, RP Ojha, R Shyam, R Prakash Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 337, 126057 , 2025 2025.0 Citations: 2
Enhanced oxidase activity of platinum decorated graphitic carbon nitride for the colorimetric detection of ascorbic acid P Singh, RP Ojha, S Jana, A Jaiswal, R Prakash Journal of Materials Science: Materials in Electronics 36 (12), 691 , 2025 2025.0 Citations: 1
A novel turn-on fluorescence sensor based on the Nd (III) complex for the ultrasensitive detection of 6-mercaptopurine S Jana, RP Ojha, R Prakash Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 313, 124056 , 2024 2024.0 Citations: 1
Nanozymes-based multifunctional platforms for uric acid detection in patients RP Ojha, SK Srivastava, M Srivastava, R Prakash Nanozymes, 227-240 , 2024 2024.0
Smartphone‐Based Noninvasive Glucose Monitoring in Diabetic Patients Utilizing Enhanced Chemiluminescence Imaging Technique P Singh, N Kumari, RP Ojha, NR Nirala, R Prakash physica status solidi (a) 220 (24), 2300077 , 2023 2023.0 Citations: 5
A smartphone-enabled colorimetric sensor based on Au-CuO nanozyme for visual and quantitative detection of antihypertensive drug hydralazine RP Ojha, SK Srivastava, M Srivastava, R Prakash Materials Chemistry and Physics 307, 128120 , 2023 2023.0 Citations: 5
g-C3N4/MWCNT nanocomposite based electrochemical sensor for hydrogen peroxide detection S Shukla, RP Ojha, G Ji, R Prakash Materials Today: Proceedings 80, 183-187 , 2023 2023.0 Citations: 4
Smartphone-assisted colorimetric sensor based on nanozyme for on-site glucose monitoring M Srivastava, SK Srivastava, RP Ojha, R Prakash Microchemical Journal 182, 107850 , 2022 2022.0 Citations: 35
Impedimetric immunosensor for the NS1 dengue biomarker based on the gold nanorod decorated graphitic carbon nitride modified electrode RP Ojha, P Singh, UP Azad, R Prakash Electrochimica Acta 411, 140069 , 2022 2022.0 Citations: 34
Hierarchically porous 2D carbon from bio-waste: A sustainable, rapid and efficient oxidase mimic for colorimetric detection of ascorbic acid. RPORP Chandra Jeet Verma, Priya Singh Materials Advances, 1307-1836 , 2022 2022.0 Citations: 14
Functional Nanomaterials Modified Transducers for Sensor Applications RP Ojha IIT (BHU) Varanasi , 2022 2022.0
Immunosuppressive drug sensor based on MoS2-polycarboxyindole modified electrodes VK Mall, RP Ojha, P Tiwari, R Prakash Results in Chemistry 4, 100345 , 2022 2022.0 Citations: 5
Colorimetric sensing of lactose through formation of gold nano-particles P Srivastava, RP Ojha, G Ji, R Prakash Materials Today: Proceedings 62, 3033-3037 , 2022 2022.0 Citations: 3
Cu-Fe Prussian blue analog nanocube with intrinsic oxidase mimetic behaviour for the non-invasive colorimetric detection of Isoniazid in human urine RP Ojha, S Pal, R Prakash Microchemical Journal 171, 106854 , 2021 2021.0 Citations: 39
Fe-doped MoS2 nanomaterials with amplified peroxidase mimetic activity for the colorimetric detection of glutathione in human serum P Singh, RP Ojha, S Kumar, AK Singh, R Prakash Materials Chemistry and Physics 267, 124684 , 2021 2021.0 Citations: 56
Au-V2O5/Polyindole composite: An approach for ORR in different electrolytes CJ Verma, A Kumar, RP Ojha, R Prakash Journal of Electroanalytical Chemistry 861, 113959 , 2020 2020.0 Citations: 16
A composite prepared from MoS 2 quantum dots and silver nanoparticles and stimulated by mercury(II) is a robust oxidase mimetic for use in visual determination of … RP Ojha, R Mishra, P Singh, NR Nirala, R Prakash Microchimica Acta 187 (1), 74 , 2020 2020.0 Citations: 23
Identification of novel targets for HIV-1: Molecular dynamics simulation and binding energy calculations V Pandey, G Tiwari, VS Mall, RK Tiwari, RP Ojha AIP Conference Proceedings 1953 (1) , 2018 2018.0
Homogenous Dispersion of MoS 2 Nanosheets in Polyindole Matrix at Air–Water Interface Assisted by Langmuir Technique R Mishra, NR Nirala, RK Pandey, RP Ojha, R Prakash Langmuir 33 (47), 13572-13580 , 2017 2017.0 Citations: 33
3D Printing and its Impact on Composite Materials Development P Singh, RP Ojha, S Kumar Hybrid Materials and Advanced Manufacturing, 143-159 , 0
MOST CITED SCHOLAR PUBLICATIONS
Fe-doped MoS2 nanomaterials with amplified peroxidase mimetic activity for the colorimetric detection of glutathione in human serum P Singh, RP Ojha, S Kumar, AK Singh, R Prakash Materials Chemistry and Physics 267, 124684 , 2021 2021.0 Citations: 56
Cu-Fe Prussian blue analog nanocube with intrinsic oxidase mimetic behaviour for the non-invasive colorimetric detection of Isoniazid in human urine RP Ojha, S Pal, R Prakash Microchemical Journal 171, 106854 , 2021 2021.0 Citations: 39
Smartphone-assisted colorimetric sensor based on nanozyme for on-site glucose monitoring M Srivastava, SK Srivastava, RP Ojha, R Prakash Microchemical Journal 182, 107850 , 2022 2022.0 Citations: 35
Impedimetric immunosensor for the NS1 dengue biomarker based on the gold nanorod decorated graphitic carbon nitride modified electrode RP Ojha, P Singh, UP Azad, R Prakash Electrochimica Acta 411, 140069 , 2022 2022.0 Citations: 34
Homogenous Dispersion of MoS 2 Nanosheets in Polyindole Matrix at Air–Water Interface Assisted by Langmuir Technique R Mishra, NR Nirala, RK Pandey, RP Ojha, R Prakash Langmuir 33 (47), 13572-13580 , 2017 2017.0 Citations: 33
A composite prepared from MoS 2 quantum dots and silver nanoparticles and stimulated by mercury(II) is a robust oxidase mimetic for use in visual determination of … RP Ojha, R Mishra, P Singh, NR Nirala, R Prakash Microchimica Acta 187 (1), 74 , 2020 2020.0 Citations: 23
Au-V2O5/Polyindole composite: An approach for ORR in different electrolytes CJ Verma, A Kumar, RP Ojha, R Prakash Journal of Electroanalytical Chemistry 861, 113959 , 2020 2020.0 Citations: 16
Hierarchically porous 2D carbon from bio-waste: A sustainable, rapid and efficient oxidase mimic for colorimetric detection of ascorbic acid. RPORP Chandra Jeet Verma, Priya Singh Materials Advances, 1307-1836 , 2022 2022.0 Citations: 14
Smartphone‐Based Noninvasive Glucose Monitoring in Diabetic Patients Utilizing Enhanced Chemiluminescence Imaging Technique P Singh, N Kumari, RP Ojha, NR Nirala, R Prakash physica status solidi (a) 220 (24), 2300077 , 2023 2023.0 Citations: 5
A smartphone-enabled colorimetric sensor based on Au-CuO nanozyme for visual and quantitative detection of antihypertensive drug hydralazine RP Ojha, SK Srivastava, M Srivastava, R Prakash Materials Chemistry and Physics 307, 128120 , 2023 2023.0 Citations: 5
Immunosuppressive drug sensor based on MoS2-polycarboxyindole modified electrodes VK Mall, RP Ojha, P Tiwari, R Prakash Results in Chemistry 4, 100345 , 2022 2022.0 Citations: 5
g-C3N4/MWCNT nanocomposite based electrochemical sensor for hydrogen peroxide detection S Shukla, RP Ojha, G Ji, R Prakash Materials Today: Proceedings 80, 183-187 , 2023 2023.0 Citations: 4
Colorimetric sensing of lactose through formation of gold nano-particles P Srivastava, RP Ojha, G Ji, R Prakash Materials Today: Proceedings 62, 3033-3037 , 2022 2022.0 Citations: 3
Isoniazid (INH) a tuberculosis drug detection using turn-off fluorescent [Ce (o-Van) 3 (H2O) 3] probe in real samples S Jana, RP Ojha, R Shyam, R Prakash Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 337, 126057 , 2025 2025.0 Citations: 2
Enhanced oxidase activity of platinum decorated graphitic carbon nitride for the colorimetric detection of ascorbic acid P Singh, RP Ojha, S Jana, A Jaiswal, R Prakash Journal of Materials Science: Materials in Electronics 36 (12), 691 , 2025 2025.0 Citations: 1
A novel turn-on fluorescence sensor based on the Nd (III) complex for the ultrasensitive detection of 6-mercaptopurine S Jana, RP Ojha, R Prakash Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 313, 124056 , 2024 2024.0 Citations: 1
Nanozymes-based multifunctional platforms for uric acid detection in patients RP Ojha, SK Srivastava, M Srivastava, R Prakash Nanozymes, 227-240 , 2024 2024.0
Functional Nanomaterials Modified Transducers for Sensor Applications RP Ojha IIT (BHU) Varanasi , 2022 2022.0
Identification of novel targets for HIV-1: Molecular dynamics simulation and binding energy calculations V Pandey, G Tiwari, VS Mall, RK Tiwari, RP Ojha AIP Conference Proceedings 1953 (1) , 2018 2018.0
3D Printing and its Impact on Composite Materials Development P Singh, RP Ojha, S Kumar Hybrid Materials and Advanced Manufacturing, 143-159 , 0