Subhash Chandra
@gitam.edu
Assistant Professor (Civil Engineering)
GITAM University
EDUCATION
B. Tech in Mechanical Engineering from Allahabad Agriculture (SHUATS) Deemed University, Prayagraj, Uttar Pradesh (2012)
M. Tech in Environmental Engineering from the Indian Institute of Technology (ISM) Dhanbad, Jharkhand (2014)
PhD in Environmental Engineering from the Indian Institute of Technology Kharagpur, West Bengal (2021)
RESEARCH, TEACHING, or OTHER INTERESTS
Environmental Engineering, Waste Management and Disposal, Water Science and Technology
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Subhash Chandra, Manoj Gahlot, Alka N. Choudhary, Santwana Palai, Ray Silva de Almeida, John Eversong Lucena de Vasconcelos, Francisco Antonio Vieira dos Santos, Pablo Antonio Maia de Farias, and Henrique Douglas Melo Coutinho
Elsevier BV
Isha Medha, Subhash Chandra, Jayanta Bhattacharya, Biswajit Samal, and Kumar Raja Vanapalli
Springer Science and Business Media LLC
Subhash Chandra, Isha Medha, and Ashwani Kumar Tiwari
MDPI AG
Land degradation and the release of contaminants such as heavy metals into the environment due to mining activities is a concerning issue worldwide. The bioaccumulation of heavy metals in the environmental matrix can severely damage flora and fauna and negatively impact human health. The poor physicochemical properties of mine spoil generated through mining operations make restoration of such contaminated and degraded lands challenging. In recent years, an exponential growth in the development and applications of biochar and its composites for the remediation of heavy metal-polluted environmental matrices such as soil and water has been observed. The literature review found that 95 review papers were published in the last five years reviewing the utility of biochar for heavy metals removal from the aqueous environment. However, no paper was published focusing on the application of biochar and its composites for the remediation of heavy metal-contaminated coal mine soil. The objective of the present review is to critically review the impact of mining activities on the environment and the role of biochar and its composites in the remediation of heavy metal-contaminated mine soil. This review presented a detailed discussion and sufficient data on the impact of mining practices in India on the environment. In addition, it critically discussed the methods of the production of biochar from various wastes and methods of modifying the pristine biochar to develop functionalized biochar composites. The detailed mechanism through which biochar and its composites remove and immobilize the heavy metals in the soil was discussed. The efficacy of biochar for the remediation of contaminated mine soil was also critically evaluated using various case studies and data from previously published articles. Thus, the major conclusion drawn from the review is that the application of various functionalized biochar composites could effectively manage and remediate heavy metal-contaminated mine soil.
Pradeep Kumar Yadav, Subhash Chandra, Vivek Kumar, Deepak Kumar, and Syed Hadi Hasan
MDPI AG
Carbon quantum dots (CQDs), also known as carbon dots (CDs), are novel zero-dimensional fluorescent carbon-based nanomaterials. CQDs have attracted enormous attention around the world because of their excellent optical properties as well as water solubility, biocompatibility, low toxicity, eco-friendliness, and simple synthesis routes. CQDs have numerous applications in bioimaging, biosensing, chemical sensing, nanomedicine, solar cells, drug delivery, and light-emitting diodes. In this review paper, the structure of CQDs, their physical and chemical properties, their synthesis approach, and their application as a catalyst in the synthesis of multisubstituted 4H pyran, in azide-alkyne cycloadditions, in the degradation of levofloxacin, in the selective oxidation of alcohols to aldehydes, in the removal of Rhodamine B, as H-bond catalysis in Aldol condensations, in cyclohexane oxidation, in intrinsic peroxidase-mimetic enzyme activity, in the selective oxidation of amines and alcohols, and in the ring opening of epoxides are discussed. Finally, we also discuss the future challenges in this research field. We hope this review paper will open a new channel for the application of CQDs as a catalyst in organic synthesis.
SUBHASH CHANDRA, SANTWANA PALAI, EDINARDO FAGNER FERREIRA-MATIAS, IVO CAVALCANTE PITA-NETO, C鞢ERO LUCAS GOMES-RAMALHO, EDLANE MARTINS DE ANDRADE, RAY SILVA DE ALMEIDA, MARCELLO IRITI, and HENRIQUE DOUGLAS MELO-COUTINHO
Computers, Materials and Continua (Tech Science Press)
G Prasad, S Kimothi, S Chandra, A Thapliyal, and R C Ramola
IOP Publishing
Abstract Terrestrial gamma radiation dose (TGRD) exposure on the earth’s surface establishes the linkages with the distribution of radionuclide elements in that particular environmental condition. The rate of variation of the terrestrial gamma radiation in the environment is directly associated with the regional geology and to the elemental concentration of these elements. In this study, Environmental TGRD rates (mSv/h) were measured over the three different geological conditions (Kamal valley, Tona valley and Yamuna valley) with the objective of establishing baseline data on the background radiation. An extensive survey of gamma-ray dose rate is conducted focusing the areas highly suitable for fractures and valley zones. The rocks types in the study regions are basically unconsolidated and moderately structured. The Gamma-ray dose rate at one (1) meter above the ground was measured at 46 points, using a pocket survey dosimeter which. The highest TGRD rate (0.27 mSv/h) is observed (with 35% estimation error) at the location of Rama site in the Kamal valley. Similarly, for Buthothra site of Tons valley it is found to be 0.21 mSv/h with estimation error 37% and at Rekhud site of Yamuna valley it is 0.19 mSv/h with estimation error 36%. The ranges of the gamma dose rate in other sites are also found under the recommended value with normal distribution.
Subhash Chandra, Isha Medha, Jayanta Bhattacharya, Kumar Raja Vanapalli, and Biswajit Samal
MDPI AG
Contamination of soil with heavy metals is a worldwide problem, which causes heavy metals to release into the environment. Remediation of such contaminated soil is essential to protect the environment. The aims of this study are: first, to compare the effect of biochar and the joint application of biochar with fertilizer for the phytoremediation of heavy metals-contaminated soil using Acacia auriculiformis; second, to study the effect of the application rate of biochar in improving the physicochemical properties of the soil. The soil samples were collected from an active coal mine dump and assessed for their physicochemical properties and heavy metals toxicity. Initial results indicated that the soil has poor physicochemical properties and was contaminated with the presence of heavy metals such as Zn, Ni, Cu, Cr, and Co. Later, the heavy metals-contaminated soil was mixed with the 400 and 600 °C biochar, as well as the respective biochar–fertilizer combination in varying mixing ratios from 0.5 to 5% (w/w) and subjected to a pot-culture study. The results showed that the application of both varieties of biochar in combination with fertilizer substantially improved the physicochemical properties and reduced the heavy metals toxicity in the soil. The biochar and fertilizer joint application also substantially improved the soil physiochemical properties by increasing the application rate of both varieties of biochar from 0.5 to 5%. The soil fertility index (SFI) of the biochar and biochar–fertilizer amended soil increased by 49.46 and 52.22%, respectively. The plant’s physiological analysis results indicated a substantial increase in the plant’s shoot and root biomass through the application of biochar and biochar–fertilizer compared to the control. On the other hand, it significantly reduced the heavy metals accumulation and, hence, the secretion of proline and glutathione hormones in the plant cells. Therefore, it can be concluded that the joint application of biochar with the application rate varying between 2.5 to 5% (w/w) with the fertilizer significantly improved the physicochemical properties of the soil and reduced the heavy metals toxicity compared to the controlled study.
Sanjay Kumar Pandey and Subhash Chandra
Wiley
The paper models a peristaltically driven flow when the cross section of the tube changes exponentially. This may resemble the shape of the oesophagus when it suffers from sliding hiatus hernia, that is, when the abdomen protrudes through the hiatus. The fluid transported is considered micro‐polar while the peristaltic waves propagating along wall too dilate exponentially. Bulging, caused by herniation, in tube is examined considering two different cases: (i) tube diverging entirely from the first end to the other, and (ii) tube diverging partly limited to the other end only. Effects of dilating amplitude, the coupling number and the micro‐polar parameter are also investigated. Non‐linear governing equations are linearized by the method of low Reynolds number and long wavelength approximations and computer simulation is used to estimate the numerical results. It is observed that whether the tube diverges entirely or partly, pressure required for carrying the fluid is less, hence facilitating easier swallowing, which causes sliding hiatus hernia to go unnoticed. Exponential divergence in the tube geometry makes swallowing easier than linear divergence. While pressure increases with the coupling number, it declines with the micropolar parameter. Reflux region is further found to shrink once the wave amplitude dilates.
Chukwuebuka Egbuna, Subhash Chandra, Chinaza Godswill Awuchi, Sarla Saklani, Ihtisham Ulhaq, Muhammad Akram, Kingsley C. Patrick-Iwuanyanwu, and Johra Khan
Elsevier
Subhash Chandra, Sarla Saklani, Pramod Kumar, Bonglee Kim, and Henrique D. M. Coutinho
Hindawi Limited
A growing demand exists for nutraceuticals, which seem to reside in the grey area between pharmaceuticals and food. Nutraceuticals, up today, do not have a specific definition distinct from those of other food-derived categories, e.g., food supplements, herbal products, functional foods, and fortified foods. They have, however, a pharmacological beneficial effect on health. Many studies have been recently addressed to assess their safety, efficacy, and regulation. The object of writing this review article is that we need to pay more attention to natural and organic foods. The bases of nutraceutical components (food supplements) are known for potent and powerful clinical evidence effects on the treatment of hypertension and type 2 diabetes.
Subhash Chandra, Daraksha Bano, Kedar Sahoo, Deepak Kumar, Vivek Kumar, Pradeep Kumar Yadav, and Syed Hadi Hasan
Elsevier BV
Kumar Raja Vanapalli, Jayanta Bhattacharya, Biswajit Samal, Subhash Chandra, Isha Medha, and Brajesh K. Dubey
Elsevier BV
Biswajit Samal, Kumar Raja Vanapalli, Brajesh Kumar Dubey, Jayanta Bhattacharya, Subhash Chandra, and Isha Medha
Elsevier BV
Subhash Chandra, Pravin Jagdale, Isha Medha, Ashwani Tiwari, Mattia Bartoli, Antonio Nino, and Fabrizio Olivito
MDPI AG
Sulfamethoxazole (SMX) is a frequently used antibiotic for the treatment of urinary tract, respiratory, and intestinal infections and as a supplement in livestock or fishery farming to boost production. The release of SMX into the environment can lead to the development of antibiotic resistance among the microbial community, which can lead to frequent clinical infections. SMX removal from water is usually done through advanced treatment processes, such as adsorption, photocatalytic oxidation, and biodegradation. Among them, the advanced oxidation process using TiO2 and its composites is being widely used. TiO2 is a widely used photocatalyst; however, it has certain limitations, such as low visible light response and quick recombination of e−/h+ pairs. Integrating the biochar with TiO2 nanoparticles can overcome such limitations. The biochar-supported TiO2 composites showed a significant increase in the photocatalytic activities in the UV-visible range, which resulted in a substantial increase in the degradation of SMX in water. The present review has critically reviewed the methods of biochar TiO2 composite synthesis, the effect of biochar integration with the TiO2 on its physicochemical properties, and the chemical pathways through which the biochar/TiO2 composite degrades the SMX in water or aqueous solution. The degradation of SMX using photocatalysis can be considered a useful model, and the research studies presented in this review will allow extending this area of research on other types of similar pharmaceuticals or pollutants in general in the future.
Biswajit Samal, Kumar Raja Vanapalli, Brajesh Kumar Dubey, Jayanta Bhattacharya, Subhash Chandra, and Isha Medha
Elsevier BV
Subhash Chandra, Sarla Saklani, and Abhishek Mathur
Springer Science and Business Media LLC
Pradeep Kumar Yadav, Rishibrind Kumar Upadhyay, Deepak Kumar, Daraksha Bano, Subhash Chandra, Satyabrata Jit, and Syed Hadi Hasan
Royal Society of Chemistry (RSC)
Green fluorescent CQDs have been synthesized from the latex of ficus benghalensis and polyethyleneimine and utilized for the detection of tyrosine. Further, fabricated a Schottky barrier diode.
Jackson Rodrigues, Ashwini Amin, Chandavalli Ramappa Raghushaker, Subhash Chandra, Manjunath B. Joshi, Keerthana Prasad, Sharada Rai, Subramanya G. Nayak, Satadru Ray, and Krishna Kishore Mahato
Elsevier BV
Isha Medha, Subhash Chandra, Kumar Raja Vanapalli, Biswajit Samal, Jayanta Bhattacharya, and Bidus Kanti Das
Elsevier BV
Kumar Raja Vanapalli, Jayanta Bhattacharya, Biswajit Samal, Subhash Chandra, Isha Medha, and Brajesh K. Dubey
Elsevier BV
Vivek Kumar, Rishibrind Kumar Upadhyay, Daraksha Bano, Subhash Chandra, Deepak Kumar, Satyabrata Jit, and Syed Hadi Hasan
Royal Society of Chemistry (RSC)
The synthesis of a Cu–H4L metallogel and its application in the fabrication of a Schottky diode are illustrated.
Subhash Chandra, Sarla Saklani, and Hassan Y. Aboul-Enein
Bentham Science Publishers Ltd.
Hydroxychloroquine is a chloroquine derivative which is well recognized for its ‘SARS-CoV-2 or COVID-19’ & other uses. It’s one of the key drugs of malaria and other various respiratory diseases. The drug exhibits a wide range of activities that include strong antimalarial, antidibetic, anticancer, anti-HIV, antifungal, antimicrobial and antioxidant activities. The based on latest study of corona virus, they have showed five mutations or genetic change in their structure, due to change of their climatic condition (e. i. R 207C (nsp 2-27) – Wuhan (China), V 378 I (nsp 2- 198) – Italy, M 2796I (nsp 4- 33) – Iran, L 3606F (nsp 6- 37)-America and V 9082F (ORF 7a- 74) – Kuwait). Here is so many preclinical, clinical, theoretical and experimental evidence, All these supports are directly related to the effectiveness of HCQ & CQ on patients affected by COVID-19. Based on the evidence currently underway and future research, we will be able to provide better role results in COVID-19 transition of HCQ and CQ. It displays several activities that are related to the respiratory system and numerous studies have suggested that the compound may be beneficial to protect against disease such as malaria and lupus erythematosus. The present review represents the role & use of HCQ as a COVID-19 disease. The object for this review study is based on the research evidence obtained from different authentic sources and currently used for the treatment of HCQ and CQ in the corona virus and various other infections.
Yasaman Taheri, Javad Sharifi-Rad, Gizem Antika, Yakup Berkay Yılmaz, Tugba Boyunegmez Tumer, Sawsan Abuhamdah, Subhash Chandra, Sarla Saklani, Ceyda Sibel Kılıç, Simona Sestito,et al.
Hindawi Limited
Luteolin is a naturally occurring secondary metabolite belonging to the class of flavones. As many other natural flavonoids, it is often found in combination with glycosides in many fruits, vegetables, and plants, contributing to their biological and pharmacological value. Many preclinical studies report that luteolin present excellent antioxidant, anticancer, antimicrobial, neuroprotective, cardioprotective, antiviral, and anti-inflammatory effects, and as a consequence, various clinical trials have been designed to investigate the therapeutic potential of luteolin in humans. However, luteolin has a very limited bioavailability, which consequently affects its biological properties and efficacy. Several drug delivery strategies have been developed to raise its bioavailability, with nanoformulations and lipid carriers, such as liposomes, being the most intensively explored. Pharmacological potential of luteolin in various disorders has also been underlined, but to some of them, the exact mechanism is still poorly understood. Given the great potential of this natural antioxidant in health, this review is aimed at providing an extensive overview on the in vivo pharmacological action of luteolin and at stressing the main features related to its bioavailability, absorption, and metabolism, while essential steps determine its absolute health benefits and safety profiles. In addition, despite the scarcity of studies on luteolin bioavailability, the different drug delivery formulations developed to increase its bioavailability are also listed here.
Kumar Raja Vanapalli, Jayanta Bhattacharya, Biswajit Samal, Subhash Chandra, Isha Medha, and Brajesh K. Dubey
Elsevier BV
RECENT SCHOLAR PUBLICATIONS
MOST CITED SCHOLAR PUBLICATIONS
GRANT DETAILS
Development of Waste-Derived Carbon electrodes and its utilization in Membrane Capacitive Deionization Cell for desalination of Brackish Water
Funding Agency: DST
Amount: 96 Lakhs
Time Period: 2022 - 2025
INDUSTRY EXPERIENCE
Research Officer, Zelence Industries Private Limited, 2020 - 2021