NISHANT RANJAN
@cuchd.in
ASSISTANT PROFESSOR (UNIVERSITY CENTRE FOR RESEARCH & DEVELOPMENT (UCRD))
Chandigarh University
RESEARCH INTERESTS
Additive Manufacturing,
Thermoplastic Polymers,
FDM,
Ceramics
Scopus Publications
Scopus Publications
Vaishali Kumar, Harsh Sable, Shikha Singh, Richa Mishra, Vandana Singh, Nishant Ranjan, Ashish Kumar, Kuldeep Sharma, and Amit Roy
Wiley
ABSTRACTHeavy metal contamination of soil presents significant environmental and human health concerns worldwide. In response, alternative remediation strategies such as vermiremediation have gained attention for their eco‐friendly approach. Earthworms, ubiquitous in soil ecosystems, play pivotal roles in soil health maintenance through organic matter decomposition, nutrient cycling, and soil aeration. Additionally, earthworms possess inherent mechanisms for coping with heavy metal exposure, making them natural candidates for remediation efforts. Their ability to bioaccumulate, transform, and immobilize heavy metals underscores their potential in mitigating soil pollution. Through controlled laboratory experiments and field studies, the effectiveness of vermiremediation utilizing earthworms, particularly species like Eisenia fetida, has been demonstrated in reducing heavy metal concentrations in contaminated soil. This review provides insights into the pivotal role of earthworms in soil ecosystems. It highlights their promising potential in remediating toxic heavy metal pollution, contributing to sustainable soil management practices.
Harnam Singh Farwaha, Sukhjeet Singh, Nishant Ranjan, Jasmaninder Singh Grewal, and Shatrudhan Pandey
Springer Science and Business Media LLC
Nishant Ranjan and Harnam Singh Farwaha
Springer Science and Business Media LLC
Rashi Tyagi, Nishant Ranjan, Monty Kumar, Vinay Kumar, Ashutosh Tripathi, and Ranvijay Kumar
SAGE Publications
In the present work, investigations of the wettability, wear, and morphological study on 3D-printed polylactic acid (PLA)/molybdenum disulfide (MoS2)-silicon carbide (SiC) based composite have been performed. In the first stage, the PLA/MoS2-SiC composite was fabricated from the different types of filaments of 1.75 ± 0.10 mm size by taking MoS2-SiC as reinforcement at various extrusion temperatures (150°C–160°C) and screw rotational speed (3–7 r/min) of the extruder setup. The Taguchi L9 orthogonal array was used to design the experiments for 3D printing by varying the filament type, range of nozzle temperature (200°C–210°C), and infill density (40%–90%). The pin-on-disk (POD) setup was used for measuring specific wear rate (SWR) and showed the lowest value of 0.00141 g/N-m when composites were 3D printed by taking filaments manufactured at the parametric combination of 160°C extruder temperature and 7 r/min rotational speed, while 3D printed at 210°C nozzle temperature and 40% infill density. Contact angle (CA) values indicated that the reinforcement of MoS2 and SiC in PLA resulted in hydrophilic surface formation due to morphology and increased roughness (including mean roughness (Sa), mean root square of the Z data (Sq), and the highest peak (Sz)). The significantly increased surface free energy (SFE) of MoS2-SiC-reinforced PLA composite compared to pure PLA was reported which makes the prepared composite a promising candidate to be used for biocompatible implants with high wear resistance.
Anjali, Aarti Gupta, Babita Tripathi, Mohit Sahni, Kuldeep Sharma, Nishant Ranjan, M. Z. A. Yahya, I. M. Noor, and Soumya Pandit
Springer Science and Business Media LLC
Mohd Farhan Khan, Khalid Umar, Javed Ahmad Wagay, Mohd Sajid Ali, Hamad A. Al-Lohedan, Nishant Ranjan, Soumya Pandit, Mohamed M. Hassan, Bander Albogami, Montaser M. Hassan,et al.
Elsevier BV
Kalpana Sharma, Soumya Pandit, Ankit Kumar, Krishna Kumar Pandey, Dipak A. Jadhav, Azmat Ali Khan, Nishant Ranjan, and Sabiha Fatima
American Chemical Society (ACS)
Shilpa Kumari, Rahul Kumar Mishra, Vishal Sorathiya, Kanu Priya, Soumya Pandit, Azmat Ali Khan, Nishant Ranjan, Sumira Malik, Sarvesh Rustagi, Abdul Malik,et al.
Elsevier BV
Mohit Sahni, Ankit Kumar, Pankaj Gupta, Azmat Ali Khan, Abhilasha Singh Mathuriya, Soumya Pandit, Kuldeep Sharma, Amit Roy, Nishant Ranjan, M. Z. A. Yahya,et al.
Springer Science and Business Media LLC
Nishant Ranjan, Sandeep Kumar, and Sanjay M Mahajani
Elsevier BV
Vandana Singh, Chetan Pandit, Subhasree Ray, Soumya Pandit, Nishant Ranjan, Deepansh Sharma, Hemen Sarma, Geetha S.J., Randhir Makkar, Sarvesh Rustagi,et al.
Wiley
ABSTRACTGreen surfactants–based bioremediation of polycyclic aromatic hydrocarbons (PAHs) from the environment is a promising technique. Rhamnolipids are a class of glycolipid surfactants that belong to the category of green surfactants and have distinctive characteristics. PAHs, which are hazardous toxins, are commonly found in polluted soil, water, and air. PAHs are difficult to break down because they are resistant to degradation and typical methods of cleaning up pollution are not very effective. In recent years, there has been a growing interest in the capacity of specific microorganism species to produce rhamnolipids, which can enhance the process of PAH biodegradation. Rhamnolipids can dissolve and enhance the accessibility of PAHs, thereby boosting the effectiveness of microorganisms that break down PAHs. The presence of rhamnolipids can be attributed to the equilibrium between hydrophobic and hydrophilic properties, as well as their positive charge. Rhamnolipids have biosurfactant properties, making them beneficial for the bioremediation of polluted soil and water. In general, rhamnolipids have proven to be a highly efficient means of removing PAHs from the environment, providing a viable alternative to conventional chemical approaches. Nevertheless, additional investigation is necessary to gain a deeper comprehension of the fundamental principles behind rhamnolipid‐assisted bioremediation and to enhance its implementation in larger real‐world scenarios. This study provides a concise overview of recent research on the utilization of rhamnolipids for bioremediating PAHs in the environment. The article covers the underlying mechanisms, the specific microorganisms employed, and the overall efficacy of the bioremediation process. The utilization of rhamnolipids as a bioremediation tool is examined, along with the difficulties and restrictions of its implementation. The review's conclusion is followed by a discussion on the future directions for studying this topic.
Chetan Pandit, Mohit Kumar, Ramesh Chander Kuhad, Kuldeep Sharma, Amit Roy, Rishikesh Shukla, Soumya Pandit, Nishant Ranjan, Santosh Kumar Mishra, and Ram Prasad
Elsevier BV
R. Tyagi, N. K. Jha, A. Tripathi, N. Ranjan, A. K. Srivastava, S. Kumar, and R. Kumar
Wiley
AbstractIn this work, an investigation has been carried out on the sound absorption properties of the microperforated composites prepared by filling natural luffa fiber and synthetic luffa fiber. These composite structures are created by 3‐dimensional printing of polylactic acid, which exhibits excellent biodegradability. After preparing the structure, the micro‐perforation is done at the top of the composite with the help of a heated cylindrical drill. During the printing process, the infill density (printing parameter) and type of luffa fiber (natural and synthetic) have been varied to find out its effect on acoustic properties. Finally, a comparative study is carried out among natural luffa fiber and without using natural luffa fiber. The results showed excellent sound absorption of luffa filled structure compared to an unfilled structure. Out of three different infilled densities, the density of 5 % revealed a maximum amount of absorption, suggesting the potential applications of these structures in the field of sound absorption.
Shivangi Sankhyan, Prasun Kumar, Soumya Pandit, Sanjay Kumar, Nishant Ranjan, and Subhasree Ray
Elsevier BV
Ranvijay Kumar, Rupinder Singh, Ankush Mehta, Nishant Ranjan, and Vinay Kumar
Elsevier BV
Ranvijay Kumar, Rupinder Singh, Vinay Kumar, Nishant Ranjan, Jeena Gupta, and Nancy Bhura
Elsevier BV
Harsh Sable, Vaishali Kumar, Richa Mishra, Vandana Singh, Arpita Roy, Ashutosh Kumar Rai, Nishant Ranjan, Sarvesh Rustagi, and Soumya Pandit
Elsevier BV
Mayur Thakare, Soumya Pandit, Chetan Pandit, Subhasree Ray, Abdullah M. Alkahtani, Khulood Fahad Alabbosh, Nishant Ranjan, S.J. Geetha, and Sanket J. Joshi
Elsevier BV
Vinay Kumar, Rupinder Singh, Nishant Ranjan, and Ranvijay Kumar
Springer Science and Business Media LLC
Harnam Singh Farwaha, Prem Singh, Mukesh Kumar, Nishant Ranjan, and Harpreet Kaur
AIP Publishing
Vandana Singh, Chetan Pandit, Arpita Roy, Soumya Pandit, Ashutosh Kumar Rai, Anju Rani, Nishant Ranjan, Sarvesh Rustagi, and Sumira Malik
Elsevier BV
Nishant Ranjan, Rashi Tyagi, Ranvijay Kumar, and Vinay Kumar
SAGE Publications
The 3D-printed rapid tools are being used in finishing operations such as drilling, milling, broaching, roller burnishing, and other finishing operations that need anti-wear plastic composite materials. Zirconium oxide (ZrO2) is one of the ceramic materials which is highly appreciated due to its anti-wear properties. This study aims to develop the ZrO2 ceramic particles reinforced acrylonitrile butadiene styrene (ABS) thermoplastic composite feedstock filaments for 3D printing of rapid tools. In the first stage, the multiple numbers (as per Taguchi L9 orthogonal array (OA)) of ABS-ZrO2 feedstock filaments were developed by varying the loading of ZrO2 in ABS matrix (2 wt.%, 4 wt.%, and 6 wt.%), processing temperature (200, 205 and 210°C), and rotation speed of screw (4, 6 and 8 RPM). The optimum setting obtained for manufacturing ABS-ZrO2 composite feedstock filaments is the combination of 2% ZrO2 loading, 205°C processing temperature, and 6 RPM screw speed. In the next stage, fused filament fabrication (FFF) based 3D printing has been used to prepare the rapid tools. The wear test performed for 3D printed ABS-ZrO2 composites rapid tools shows only .62% weight loss which is lower as compared to virgin ABS (.91% weight loss). The results of the study are supported by fracture analysis, morphology, and mechanical properties.
Prakash Katakam, Ranvijay Kumar, Nishant Ranjan, and Atul Babbar
CRC Press