RAVI PRAKASH OJHA
@lbsdc.org.in
ASSISTANT PROFESSOR, DEPARTMENT OF CHEMISTRY
SHRI LAL BAHADUR SHASTRI DEGREE COLLEGE, GONDA
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
16
Scopus Publications
211
Scholar Citations
8
Scholar h-index
7
Scholar i10-index
Scopus Publications
- Isoniazid (INH) a tuberculosis drug detection using turn-off fluorescent [Ce (o-Van)<inf>3</inf> (H<inf>2</inf>O)<inf>3</inf>] probe in real samples
Rajpal, Subhajit Jana, Ravi Prakash Ojha, Radhe Shyam, and Rajiv Prakash
Elsevier BV - A novel turn-on fluorescence sensor based on the Nd (III) complex for the ultrasensitive detection of 6-mercaptopurine
Rajpal, Subhajit Jana, Ravi Prakash Ojha, and Rajiv Prakash
Elsevier BV - Nanozymes-based multifunctional platforms for uric acid detection in patients
Ravi Prakash Ojha, Sanjay Kumar Srivastava, Monika Srivastava, and Rajiv Prakash
Elsevier - Smartphone-Based Noninvasive Glucose Monitoring in Diabetic Patients Utilizing Enhanced Chemiluminescence Imaging Technique
Priya Singh, Nupur Kumari, Ravi Prakash Ojha, Narsingh Raw Nirala, and Rajiv Prakash
Wiley
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. - A smartphone-enabled colorimetric sensor based on Au-CuO nanozyme for visual and quantitative detection of antihypertensive drug hydralazine
Ravi Prakash Ojha, S.K. Srivastava, Monika Srivastava, and Rajiv Prakash
Elsevier BV - g-C<inf>3</inf>N<inf>4</inf>/MWCNT nanocomposite based electrochemical sensor for hydrogen peroxide detection
Sarvagya Shukla, Ravi Prakash Ojha, Gopal Ji, and Rajiv Prakash
Elsevier BV - Smartphone-assisted colorimetric sensor based on nanozyme for on-site glucose monitoring
Monika Srivastava, S.K. Srivastava, Ravi Prakash Ojha, and Rajiv Prakash
Elsevier BV - Impedimetric immunosensor for the NS1 dengue biomarker based on the gold nanorod decorated graphitic carbon nitride modified electrode
Ravi Prakash Ojha, Priya Singh, Uday Pratap Azad, and Rajiv Prakash
Elsevier BV - Hierarchically porous 2D carbon from bio-waste: a sustainable, rapid, and efficient oxidase mimic for the colorimetric detection of ascorbic acid
Chandra Jeet Verma, Priya Singh, Ravi Prakash Ojha, and Rajiv Prakash
Royal Society of Chemistry (RSC)
Biowaste derived porous 2D carbon as sustainable, rapid, and efficient oxidase mimic for ascorbic acid (A.A.) detection. - Immunosuppressive drug sensor based on MoS<inf>2</inf>-polycarboxyindole modified electrodes
Vineet Kumar Mall, Ravi Prakash Ojha, Preeti Tiwari, and Rajiv Prakash
Elsevier BV - Colorimetric sensing of lactose through formation of gold nano-particles
Pragati Srivastava, Ravi Prakash Ojha, Gopal Ji, and Rajiv Prakash
Elsevier BV - Cu-Fe Prussian blue analog nanocube with intrinsic oxidase mimetic behaviour for the non-invasive colorimetric detection of Isoniazid in human urine
Ravi Prakash Ojha, Shweta Pal, and Rajiv Prakash
Elsevier BV - Fe-doped MoS<inf>2</inf> nanomaterials with amplified peroxidase mimetic activity for the colorimetric detection of glutathione in human serum
Priya Singh, Ravi Prakash Ojha, Sandeep Kumar, Ashish Kumar Singh, and Rajiv Prakash
Elsevier BV - Au-V<inf>2</inf>O<inf>5</inf>/Polyindole composite: An approach for ORR in different electrolytes
Chandra Jeet Verma, Ashish Kumar, Ravi Prakash Ojha, and Rajiv Prakash
Elsevier BV - A composite prepared from MoS<inf>2</inf> quantum dots and silver nanoparticles and stimulated by mercury(II) is a robust oxidase mimetic for use in visual determination of cysteine
Ravi Prakash Ojha, Richa Mishra, Priya Singh, Narsingh Raw Nirala, and Rajiv Prakash
Springer Science and Business Media LLC - Homogenous Dispersion of MoS<inf>2</inf> Nanosheets in Polyindole Matrix at Air-Water Interface Assisted by Langmuir Technique
Richa Mishra, Narsingh R. Nirala, Rajiv Kumar Pandey, Ravi Prakash Ojha, and Rajiv Prakash
American Chemical Society (ACS)
Two-dimensional (2D) inorganic layered materials when embedded in organic polymer matrix exhibit exotic properties that are grabbing contemporary attention for various applications. Here, nanosheet morphology of molybdenum disufide (MoS2) synthesized via one-pot facile hydrothermal reaction are exfoliated in benign aqueous medium in the presence of indole to obtain a stable dispersion. These exfoliated nanosheets then act as host to template the controlled polymerization of indole. The preassembled MoS2-polyindole (MoS2-PIn) nanostructures are reorganized at the air-water interface using the Langmuir method to facilitate maximum interfacial interaction between nanosheet and polymer. This report emphasizes large area, homogeneous dispersion of uniform-sized MoS2 nanosheets (40-60 nm diameter) in the PIn matrix and the formation of stable and uniform film via the Langmuir-Schaefer (LS) method. These self-assembled, MoS2 decorated PIn LS films are characterized using atomic force microscopy (AFM) and transmission electron microscopy (TEM). The fabricated LS films in sandwiched structure Al/MoS2-PIn/ITO as the Schottky diode portrayed remarkable enhancements in charge transport properties. Our study illustrates the potential of the MoS2-PIn LS film in electronic applications and opens a new dimension for uniform dispersion of 2D materials in other polymers via the Langmuir method for device fabrication and enhancement of electrical properties.
RECENT SCHOLAR PUBLICATIONS
- 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, 126057 2025 - 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 - Nanozymes-based multifunctional platforms for uric acid detection in patients
RP Ojha, SK Srivastava, M Srivastava, R Prakash
Nanozymes, 227-240 2024 - 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 - 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 - 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 - 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 - 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 - 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 - Functional Nanomaterials Modified Transducers for Sensor Applications
RP Ojha
IIT (BHU) Varanasi 2022 - Immunosuppressive drug sensor based on MoS2-polycarboxyindole modified electrodes
VK Mall, RP Ojha, P Tiwari, R Prakash
Results in Chemistry 4, 100345 2022 - 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 - 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 - 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 - 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 - A composite prepared from MoS2 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, 1-9 2020 - 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 - Homogenous Dispersion of MoS2 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 - Isoniazid (Inh) a Tuberculosis Drug Detection Using Turn-Off Fluorescent [Ce (O-Van) 3 (H2o) 3] in Real Samples
RP Ojha, S Jana, R Shyam, R Prakash
- POLYMERS FOR ADVANCED TECHNOLOGY February 23-25| GOA, INDIA
P Singh, RP Ojha, UP Azad, R Prakash
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
Citations: 48 - Homogenous Dispersion of MoS2 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
Citations: 29 - 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
Citations: 27 - 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
Citations: 25 - A composite prepared from MoS2 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, 1-9 2020
Citations: 22 - 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
Citations: 20 - 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
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
Citations: 8 - Immunosuppressive drug sensor based on MoS2-polycarboxyindole modified electrodes
VK Mall, RP Ojha, P Tiwari, R Prakash
Results in Chemistry 4, 100345 2022
Citations: 4 - 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
Citations: 3 - 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
Citations: 3 - 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
Citations: 3 - 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
Citations: 2 - 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
Citations: 1