Browsing by Author "Krishna, Suresh Babu Naidu"

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12 Polyphenol oxidases : the future toward global sustainability
(De Gruyter, 2024-04-08) Harun-Ur-Rashid, Mohammad; Krishna, Suresh Babu Naidu; Golla, Narasimha; Bin Imran, Abu
Polyphenol oxidases (PPOs) are enzymes that catalyze the oxidation of phenolic compounds, which are abundant in many plant-based foods. PPOs are crucial in postharvest losses and food waste, especially in developing countries with underdeveloped food supply chains. There has been a growing interest in utilizing PPOs for sustainable food production and preservation, modifying phenolic compounds to develop new food products, detecting phenolic compounds in various products, and utilizing bioremediation, agriculture, biotechnology, and waste management techniques to promote global sustainability. These advances have the potential to provide effective solutions toward achieving a more sustainable future. The most promising application of PPOs for achieving global sustainability is their use as a natural preservative to prolong the shelf life of fresh produce. They can be used to produce novel food products, such as functional foods and nutraceuticals, by modifying the phenolic compounds. The approach can add value to the food industry by creating new products with health benefits and reducing waste. PPOs can be used in bioremediation processes to degrade phenolic compounds found in industrial wastewater and produce natural antioxidants from food waste, promoting circular economy principles. They can also contribute to sustainable agriculture by increasing plant resistance to pests and diseases, reducing synthetic pesticides and herbicides, and improving crop yields. Overall, PPOs have a promising role in creating a more sustainable environment. This chapter thoroughly examines the latest developments in utilizing PPOs for sustainable food production and waste management. It emphasizes the enzyme's potential in natural preservation, novel food production, bioremediation, and sustainable agriculture. Additionally, the authors explore the wide range of applications for PPOs, such as biosensors, bioremediation, agriculture, and biotechnology.
12th International Conference on Sustainable Waste Management
(2022-12-02) Nibedita, Nath; Subhendu, Chakraborthy; Narsimha, Golla; Adam, Jamila Khatoon; Krishna, Suresh Babu Naidu
Today, nanotechnology generates a significant amount of interest among researchers as a result of the vast array of applications it provides for addressing various aspects of the eco-system. Additionally, it enables researchers to traverse the boundaries of a more specialised area of study than an already well-established one. It is an interdisciplinary field of study that focuses on the production and manipulation of nanoscale materials via scaling down the particle size scale from micrometres to nanometers (1–100 nm). They provide excellent options in the fields of health, industry, and medicine as they present a new vision for the treatment of medical conditions thanks to the fact that the particle size may be reduced, which gives them a distinct prospective characteristic. Researchers continue to be interested in finding new uses for metal nanoparticles (NPs) as the field of nanotechnology advances since these particles display distinctive properties. The public is interested in several different types of metal nanoparticles, including silver NPs. Synthesized silver nanoparticles (AgNPs) can be used in a wide variety of contexts, such as spectrally selective coatings for the absorption of solar energy, as intercalation material for electrical batteries, as optical receptors, as catalysts in chemical processes, and so on. Antibacterial and antifungal properties are only two of the biological uses of silver nanoparticles that have been the subject of much research. AgNPs are known to be cytotoxic to both normal and cancer cells in mammals, and the modalities of interactions of AgNPs have been examined in a variety of prokaryotic and eukaryotic systems. AgNPs are known to be cytotoxic to both normal and cancer cells in humans. The cytotoxic effects of silver ions have been seen and documented in a variety of cell lines. Silver nanoparticles have become important research topics due to the numerous applications they have in the fields of industry, agriculture, and biomedicine, as well as their excellent anti-bacterial, anti-fungal, anti-oxidant, anti-inflammatory, anti-viral, anti-coagulant, and photo-catalytic properties due to their chemical stability and good biocompatibility. The most important focus of this review is on recent advancements and trends in the field of AgNPs for use in biomedical applications. Keywords: Antimicrobial, silver nanoparticles, synthesis, biomedical applications, nanotechnology
7 Unlocking nature’s remediation arsenal : the role of polyphenol oxidases in efficient and eco-friendly industrial wastewater treatment
(De Gruyter, 2024-04-08) Nagarajan, Prithiviraj; Rajathy, Leena; Patil, Sharangouda J.; Golla, Narasimha; Krishna, Suresh Babu Naidu
Phenol and its derivatives have gained considerable attention recently due to their high toxicity, teratogenicity, and mutagenicity. Petroleum refinery wastewater is a significant source of phenolic compounds. However, conventional techniques used to treat these wastewaters have several drawbacks, such as incomplete or inefficient removal of phenols. In contrast, biocatalytic processes have garnered significant attention as they offer sustainable and effective removal of toxins, including phenols, from wastewater. Among various biocatalysts, polyphenol oxidases have emerged as major biocatalytic enzymes. These enzymes contain copper and catalyze the oxidation of specific phenolic substrates to quinones in the presence of molecular oxygen. Polyphenol oxidases have a wide range of applications. In the food industry, they are utilized for cocoa and tea production, enhancing coffee flavor and assessing food quality. In medicine, they find applications in treating phenylketonuria, Parkinson's disease, and leukemia. In environmental technology, they play a crucial role in removing phenolic pollutants from industrial wastewater. In the pharmaceutical industry, polyphenol oxidase-immobilized electrodes differentiate between morphine and codeine. This chapter provides comprehensive details about polyphenol oxidases' structure, biochemical properties, and applications, specifically focusing on their role in wastewater treatment.
Antibacterial properties of organosulfur compounds of garlic (Allium sativum)
(Frontiers Media SA, 2021-07-27) Bhatwalkar, Sushma Bagde; Mondal, Rajesh; Krishna, Suresh Babu Naidu; Adam, Jamila Khatoon; Govender, Patrick; Anupam, Rajaneesh
A popular food spice and flavoring agent, has also been used traditionally to treat various ailments especially bacterial infections for centuries in various cultures around the world. The principal phytochemicals that exhibit antibacterial activity are oil-soluble organosulfur compounds that include allicin, ajoenes, and allyl sulfides. The organosulfur compounds of garlic exhibit a range of antibacterial properties such as bactericidal, antibiofilm, antitoxin, and anti-quorum sensing activity against a wide range of bacteria including multi-drug resistant (MDR) strains. The reactive organosulfur compounds form disulfide bonds with free sulfhydryl groups of enzymes and compromise the integrity of the bacterial membrane. The World Health Organization (WHO) has recognized the development of antibiotic resistance as a global health concern and emphasizes antibiotic stewardship along with the urgent need to develop novel antibiotics. Multiple antibacterial effects of organosulfur compounds provide an excellent framework to develop them into novel antibiotics. The review provides a focused and comprehensive portrait of the status of garlic and its compounds as antibacterial agents. In addition, the emerging role of new technologies to harness the potential of garlic as a novel antibacterial agent is discussed.
Antibodies to erythropoietin are associated with erythropoietin resistance in hemodialysis patients in KwaZulu-Natal (South Africa)
(Medknow, 2020) Benjamin, Sherilene; Adam, Jamila; Krishna, Suresh Babu Naidu; Assounga, Alain G.
Recombinant human erythropoietin (rHuEPO) is a glycoprotein and biological equivalent to the endogenous compound administered to treat anemia of end-stage renal disease patients. Resistance to rHuEPO has been reported, whereby patients require higher and higher doses of rHuEPO to maintain an adequate hemoglobin level. In this study, assessment of native and administered erythropoietin (EPO), antibody and hemoglobin levels was carried out on a sample of patients with renal failure on hemodialysis (HD). This is a randomized controlled trial where consecutive subjects attending HD units at Addington Hospital and King Edward Hospital, Durban (South Africa) were included until the target number was reached. Forty patients with renal failure on HD and receiving recombinant EPO Beta (Recormon) for treatment of anemia via the subcutaneous route in weekly doses of 2000 IU, 4000 IU, 6000 IU, 8000 IU, 12,000 IU, or 18,000 IU according to the severity of the anemia were included after obtaining informed consent. Also included in the study were 10 HD patients not on rHuEPO therapy and 10 healthy individuals from the Durban University of Technology, recruited as described above to form the control group. ELISA was used to measure serum levels of EPO as well as antibodies to EPO. Results were analyzed by descriptive, inferential methods and by logistic regression analysis using IBM SPSS Statistics for Windows version 22.0. Antibodies to EPO were found in almost all patients who were receiving EPO. The highest levels of antibody to EPO were found to be associated with patients receiving the highest weekly dose of EPO (18,000 IU). Logistic regression analysis also revealed that serum levels of EPO, gender or age were not associated with any significant variation of serum antibody level. High levels of serum antibodies to EPO are a risk factor for EPO resistance.
Antioxidant potential of zephyranthes citrina seed extract in saccharomyces cerevisiae’s oxidative stress response system
(Association of Biotechnology and Pharmacy, 2023-10-15) Patil, Sharangouda J.; Jyothi, Renuka; Sadashiv, S. O.; Vishwantaha, T.; Adam, Jamila Khatoon; Krishna, Suresh Babu Naidu
Bio-decolorization and degradation of reactive blue 222 by a novel isolate Kucoria marina CU2005
(Association of Biotechnology and Pharmacy, 2023-01-30) Veerappa Lakshmaiah, Vasantha; Krishna, Suresh Babu Naidu; S More, Sunil; K Jayanna, Shobha
In this study, a novel bacterial strain, Kucoria marina CU2005, was isolated and identified using 16S rRNA gene sequencing from an industrial wastewater sludge sample capable of degrading Reactive Blue 222 (RB222) dye. Batch mode bio stimulation studies were performed with minimal salt media to optimize key physiological parameters for effective decolorization of RB222. When cultured at 35 °C and pH 7 under static conditions, this bacterium decolorized 82 percent of the dye after 24 hours. Decolorization was monitored using UV-vis spectrophotometry. Isolate’s ability to decolorize the complex dye was attributed to its degradation potential rather than a passive surface adsorption. FTIR, HPLC, GC-MS studies were used to confirm microbial dye metabolism. The results indicated breakdown of dye upon decolorization as some peaks were shifted and generation of aromatic amine for monosubstituted benzene ring as intermediates of dye degradation in decolorized solutions. This study has shown the potential of Kucoria marina CU2005 to decolorize RB222 dye at a better pace and efficiency than previously reported bacterial strains. Thus, we propose that our isolated strain can be utilized as a potential dye decolorizer in environmental biotechnology as effluent treatment for decolorization of RB 222.
Biogenic metallic nanoparticles as enzyme mimicking agents
(Frontiers Media SA, 2023-03) Ngcongco, Khanyisile; Krishna, Suresh Babu Naidu; Pillay, Karen
The use of biological systems such as plants, bacteria, and fungi for the synthesis of nanomaterials has emerged to fill the gap in the development of sustainable methods that are non-toxic, pollution-free, environmentally friendly, and economical for synthesizing nanomaterials with potential in biomedicine, biotechnology, environmental science, and engineering. Current research focuses on understanding the characteristics of biogenic nanoparticles as these will form the basis for the biosynthesis of nanoparticles with multiple functions due to the physicochemical properties they possess. This review briefly describes the intrinsic enzymatic mimetic activity of biogenic metallic nanoparticles, the cytotoxic effects of nanoparticles due to their physicochemical properties and the use of capping agents, molecules acting as reducing and stability agents and which aid to alleviate toxicity. The review also summarizes recent green synthetic strategies for metallic nanoparticles.
Biogenic synthesis of zinc oxide nanoparticles mediated by the extract of Terminalia catappa fruit pericarp and its multifaceted applications
(American Chemical Society (ACS), 2023-10-09) Fernandes, Cannon Antony; Jesudoss M, Nameeta; Nizam, Aatika; Krishna, Suresh Babu Naidu; Lakshmaiah, Vasantha Veerappa
Zinc oxide nanoparticles (ZnO-NPs) were bio synthesized by using the pericarp aqueous extract from Terminalia catappa Linn. These NPs were characterized using various analytical techniques such as X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, ultraviolet (UV) spec troscopy, dynamic light scattering (DLS), and scanning electron microscopy (SEM), and XRD studies of the nanoparticles reported mean size as 12.58 nm nanocrystals with highest purity. Further SEM analysis emphasized the nanoparticles to be spherical in shape. The functional groups responsible for capping and stabilizing the NPs were identified with FTIR studies. DLS studies of the synthesized NPs reported ζ potential as −10.1 mV and exhibited stable colloidal solution. These characterized ZnO-NPs were evaluated for various biological applications such as antibacterial, antifungal, antioxidant, genotoxic, biocompatibility, and larvicidal studies. To explore its multidimensional application in the field of medicine. NPs reported a potential antimicrobial activity at a concentration of 200 μg/mL against bacterial strains in the decreasing order of Streptococcus pyogenes > Streptococcus aureus > Streptococcus typhi > Streptococcus aeruginosa and against the fungi Candida albicans. In vitro studies of RBC hemolysis with varying concentrations of NPs confirm their biocompatibility with IC50 value of 211.4 μg/mL. The synthesized NPs’ DPPH free radical scavenging activity was examined to extend their antioxidant applications. The antiproliferation and genetic toxicity were studied with meristematic cells of Allium cepa reported with mitotic index (MI index) of 1.2% at the concentration of 1000 μg/mL. NPs exhibited excellent Larvicidal activity against Culex quinquefasciatus larvae with the highest mortality rate as 98% at 4 mg/L. Our findings elicit the therapeutic potentials of the synthesized zinc oxide NPs
Biosynthesis and characterization methods of copper nanoparticles and their applications in the agricultural sector
(Elsevier, 2022-01-15) Reddy, Bhagavanth; Mangatayaru, Girija K.; D, Madhusudan Reddy; Krishna, Suresh Babu Naidu; Golla, Narasimha; Kamel A, Abd-Elsalam
This book provides information on the design and application of ecologically safe formulations, for protecting cultivated crops against insects and pathogen-causing diseases, plant science, antimicrobial applications and agroecosystem ...
Challenges of student accommodation at institutions of higher learning : a case study of University of KwaZulu-Natal, South Africa
(Centre for the Study of Southern African Literature and Languages, 2022-12-12) Adam, Ahmed Sadeq; Adam, Pamela; Adam, Jamila Khatoon; Krishna, Suresh Babu Naidu
Access to higher education by the general populace in South Africa has been steadily increasing over the last decade. With this increase in access, major challenges have presented themselves that may compromise the transformational agenda for higher education in South Africa. The focus of this research was to examine the challenges associated with student accommodation. In total, 600 questionnaires were dispatched to students from the five campuses of University of KwaZulu-Natal and 453 were returned which gave a 75.5% response rate. The research instrument consisted of 31 items, with a level of measurement at a nominal or an ordinal level. Data obtained from the respondents included biographical data, quality of accommodation, accessibility and adequacy of accommodation, security, safety and health issues in the University accommodation. The questionnaire was the primary tool that was used to collect data and was distributed to students who lived in residences at the University of KwaZulu-Natal (UKZN). The data collected from the responses were analysed with SPSS version 24.0. The study’s focus was to examine various challenges associated with student accommodation in South Africa specifically UKZN and results indicated that accessibility to the university accommodation for residential purposes is a great challenge for many students. Other issues faced by students include insecurity on campus, irregular security checks, inefficient and untimely manner of the quality of services rendered by the hall management. Good and efficient accommodative measures by the university are necessary for quality academic output; hence, the need for critical intervention, as suggested in the study.
Contributing elements and issues to strategic management in the construction industry among small and medium enterprises : a case study in South Africa's eThekwini region
(University of Cape Town, 2022) Rambaruth, Amit; Adam, Jamila Khatoon; Krishna, Suresh Babu Naidu
Small and medium-sized enterprises (SMEs) are vital to the economy and have helped it grow, but they still have a high failure rate. Many businesses fail within the first few months of operation due to a lack of strategic planning. This study aimed to identify persuading factors that contribute to strategic management to improve performance and categorise challenges faced by SMEs in implementing a strategic plan in the eThekwini region of South Africa. The study adopted a quantitative research approach, and the population of interest for the research includes small and medium construction companies, which were sourced via the Construction Industry Development Board (cidb) registry. An online survey tool was used to distribute the questionnaire to 145 small and medium businesses. The data were analysed using descriptive and inferential statistical tools and exploratory factor analysis (EFA). The study's findings reveal that most eThekwini-based SMEs in the construction industry use strategic management practices to improve their business performance. The key factors for strategic management in SMEs, such as improving decision-making processes, increasing productivity, and gaining a competitive advantage, demonstrated high levels of agreement among participants regarding improving business performance. This study also found widespread agreement on the challenges of implementing a strategic plan in an organisation. Therefore, small and medium-sized enterprises (SMEs) must develop procedures and policies to deal with the difficulties that arise when drafting a strategic plan. This will ensure that strategic planning works in their operations. This can be accomplished by implementing strategic management into SMEs training programs offered by government and tertiary institutions that support SMEs. The government should also improve education and broaden its business skills curriculum. Keywords: Business, Construction, Performance, Planning, Strategy, South Africa.
Differential approach of bioremediation by sclerotium rolfsii towards textile dye
(2023-10-05) Samuel, Anthony; Lakshmaiah, , Vasantha Veerappa; Dias, Priyanjali; Praveen, N.; Fernandes, Cannon Antony; Nizam, Aatika; Krishna, Suresh Babu Naidu
Synthetic dyes are extensively used in various industries and are one of the major contaminants of industrial effluents. Dyes being xenobiotic, carcinogenic, and toxic there is need for their effective removal and detoxification to conserve water resources. Tremendous research has been carried out to identify potent microorganisms that facilitate bioremediation of these harmful dyes. A static batch culture has proved white rot fungi Sclerotium.rolfsii as an efficient catalyst in bioremediation of textile dyes and to compare their efficiency in decolourisation of two different azo dyes. Studies revealed the organism employ different remedial approach to cationic dye (Malachite green) and anionic dyes (Rose Bengal). Decolourisation of malachite green was a gradual with degradation and bio-transformation to colourless, non-toxic by products while Decolourisation of rose Bengal was quick process of biosorption. S.rolfsii exhibited 89% of decolourisation of malachite green dyes at higher concentration of 900mg/L while 96% for rose Bengal at 900mg/L. The mechanism of dye decolourisation was proposed using the UV Vis spectrophotometry, FTIR, XRD, HPLC and SEM. Microbial toxicity studies confirmed the dye metabolites of degraded malachite green was less toxic compared to original dye. Com- prehensively studies illustrate the sustained application of S. rolfsii as model organism for bioremediation of complex industrial effluents due to its differential bio remedial approach can potentially decolourise or remove various dyes.
Digitalization of phosphorous removal process in biological wastewater treatment systems : challenges, and way forward
(Elsevier BV, 2024-05-10) Sheik, Abdul Gaffar; Krishna, Suresh Babu Naidu; Patnaik, Reeza; Ambati, Seshagiri Rao; Bux, Faizal; Kumari, Sheena K.
Phosphorus in wastewater poses a significant environmental threat, leading to water pollution and eutrophication. However, it plays a crucial role in the water-energy-resource recovery-environment (WERE) nexus. Recovering Phosphorus from wastewater can close the phosphorus loop, supporting circular economy principles by reusing it as fertilizer or in industrial applications. Despite the recognized importance of phosphorus recovery, there is a lack of analysis of the cyber-physical framework concerning the WERE nexus. Advanced methods like automatic control, optimal process technologies, artificial intelligence (AI), and life cycle assessment (LCA) have emerged to enhance wastewater treatment plants (WWTPs) operations focusing on improving effluent quality, energy efficiency, resource recovery, and reducing greenhouse gas (GHG) emissions. Providing insights into implementing modeling and simulation platforms, control, and optimization systems for Phosphorus recovery in WERE (P-WERE) in WWTPs is extremely important in WWTPs. This review highlights the valuable applications of AI algorithms, such as machine learning, deep learning, and explainable AI, for predicting phosphorus (P) dynamics in WWTPs. It emphasizes the importance of using AI to analyze microbial communities and optimize WWTPs for different various objectives. Additionally, it discusses the benefits of integrating mechanistic and data-driven models into plant-wide frameworks, which can enhance GHG simulation and enable simultaneous nitrogen (N) and Phosphorus (P) removal. The review underscores the significance of prioritizing recovery actions to redirect Phosphorus from effluent to reusable products for future considerations.
Effect of lignocellulosic materials and chlorpyrifos pesticide on secretion of ligninolytic enzymes by the white rot fungus – Stereum ostrea
(Taylor and Francis, 2022-02-15) Shanthi Kumari, B. S.; Kanderi, Dileep Kumar; Golla, Narasimha; Krishna, Suresh Babu Naidu; Sai Geetha, K.; Vyshnava, Satyanarayana Swamy; Rajasekhar Reddy, B.
The present study compared the effect of chlorpyrifos on secretion of ligninolytic enzyme by the white rot fungus – Stereum ostrea grown in the presence and the absence of Tectona grandis cubes under submerged liquid conditions. Significantly higher yields of lac case and manganese peroxidase to the extent of 164.30 and 59.28 U/ml were registered in control containing only teak wood cubes than in the culture on combination of cubes and chlorpyrifos with 111.65 and 47.24 U/ml, respectively on 10th day of incubation. Reversed pattern in lignin peroxidase secretion with peak values on 6th day of incubation was noticed in the culture of S. ostrea immobilized on Tectona grandis cubes under influence of chlorpyrifos. Under free state conditions, significantly higher secretions of laccase (125.33 U/ml) and manganese peroxidase (53.60 U/ml) occurred in chlorpyrifos-amended medium than in the medium devoid of chlorpyrifos on 10th day incubation. Under moderate shaking conditions, supplementation of wheat bran alone at 3% level to the medium resulted in enhanced (3–5 folds) secretions of laccase, manganese peroxidase and lignin peroxidase by S. ostrea in medium free of wheat bran on 12th and 10th day of incubations. The presence of chlorpyrifos in addition to wheat bran in the medium further raised production of ligninolytic enzymes – laccase, MnP and LiP to the level of 311.78, 130 and 3 U/ml respectively on the 12th (higher LAC and MnP secretions) and 10th (higher LiP secretions) day of incubations. Our data in the present study suggest that secretion of ligninolytic enzymes by the culture is dependent on the nature of lignocellulosic material used in the study and secretion of higher titers of ligninolytic enzymes on cubes of Tectona grandis in the absence of chlorpyrifos rather in the presence of chlorpyrifos occurred. For executing microbial applications, it is critical to understand how lignocellulosic materials and toxic xenobiotic pesticides interact with white rot fungi and possible role of ligninolytic enzymes in the bioremediation process
Emergent roles of garlic-based nanoparticles for bio-medical applications : a review
(Association of Biotechnology and Pharmacy, 2021-08-18) Krishna, Suresh Babu Naidu; KRSS, Sambasiva Rao
Garlic (Allium sativum L.) is well renowned for its antimicrobial potential and broadly consumed spice globally for its medicinal properties. Moreover, several studies advocate that garlic contains many bioactives that demonstrate strong therapeutic properties in treating cardiovascular diseases, digestive system, diabetes, cancer, obesity, hypertension, inflammation, antioxidant, and viral infection. Presently, therapeutics of natural origin are drawing major interest among consumers due to their antimicrobial efficacy and safety. Garlic extracts, chitosan by- products, several spices and antimicrobial peptides are illustrations for such products. The present review paper inspects briefly the major active ingredients and key biological functions of garlic based nanoparticles discussing the relevant mechanisms of actions.
Enhancing the mechanical properties of hydrogels with vinyl-functionalized nanocrystalline cellulose as a green crosslinker
(IOP Publishing, 2023-12-10) Islam, Hasanul Banna Muhammad Zukaul; Krishna, Suresh Babu Naidu; Bin Imran, Abu
Hydrogels have gained significant attention in scientific communities for their versatile applications, but several challenges need to be addressed to exploit their potential fully. Conventional hydrogels suffer from poor mechanical strength, limiting their use in many applications. Moreover, the crosslinking agents used to produce them are often toxic, carcinogenic, and not bio-friendly. This study presents a novel approach to overcome these limitations by using bio-friendly modified nanocrystalline cellulose as a crosslinker to prepare highly stretchable and tough thermosensitive hydrogels. The surface of nanocrystalline cellulose was modified with 3-methacryloxypropyltrimethoxysilane (MPTS) to obtain modified nanocrystalline cellulose (M-NCC) crosslinker and used during free radical polymerization of thermosensitiveN-isopropyl acrylamide (NIPA) monomer to synthesize NIPA/M-NCC hydrogel. The resulting nanocomposite hydrogels exhibit superior mechanical, thermal, and temperature-responsive swelling properties compared to conventional hydrogels prepared with traditional bi-functionalN,N'-methylene bis (acrylamide) (MBA) as a crosslinker. The elongation at break, tensile strength, and toughness of the NIPA/M-NCC hydrogels significantly increase and Young's modulus decrease than conventional hydrogel. The designed M-NCC crosslinker could be utilized to improve the mechanical strength of any polymeric elastomer or hydrogel systems produced through chain polymerization.
Evaluation of antimicrobial potential of cerium-based perovskite (CeCuO3) synthesized by hydrothermal method
(Royal Society of Chemistry (RSC), 2022) Soren, Siba; Chakroborty, Subhendu; Mahalik, Rakesh R.; Parhi, Purnendu; Pal, Kaushik; Behera, Debendra; Sahoo, Chita Ranjan; Padhy, Rabindra Nath N.; Aulakh, Manpreet Kaur; Sareen, Shweta; Krishna, Suresh Babu Naidu
The hydrothermal synthesized CeCuO3 perovskite nanomaterial has been disinfected against microorganisms causing urinary tract infection (UTI). The synthesized CeCuO3 nanoparticle has been characterized by using the X-ray diffraction (XRD) technique,...
Exploring the perspectives and parental roles in the academic performance of university students with disabilities
(Durban University of Technology, 2021-12-12) Mntambo, Sithabile Joy; Hlengwa, Wellington Mthokozisi; Adam, Jamila Khatoon; Krishna, Suresh Babu Naidu
The present study focusses on exploring the impact of parental support on the academic performance of students with disabilities. A qualitative study approach was used to explore students with disabilities' perspectives of parental support and the impact it has on their academic performance. This qualitative study purposively selected eight participants. They were subjected to semi-structured, open-ended, one on-one interviews, and these interviews were recorded using an audio recorder with their permission. The collected data was analysed using thematic content analysis. Parental support may take numerous forms, including emotional, physical, and financial assistance. As a result, parental support influences academic success and the adjustment of students living with disabilities to their new environment. However, parental knowledge, attitudes, and tolerance of a student's disability have been shown to be obstacles to meaningful parental support. This study concludes that for students with disabilities to perform to their maximum potential, parents must be trained and empowered to provide necessary support including motivating their children
Fungi-templated silver nanoparticle composite: synthesis, characterization, and its applications
(MDPI AG, 2023-02-06) Joy, Francis; Devasia, Jyothis; Nizam, Aatika; Veerappa Lakshmaiah, Vasantha; Krishna, Suresh Babu Naidu; Krishna, Suresh Babu Naidu; Anthony William, Coleman
The self-assembly of nanoparticles on living bio-templates is a promising synthetic methodology adopted for synthesizing nano/microstructures with high efficiency. Therefore, the method of bio-templating offers various advantages in controlling the geometries of nano/microstructures, thereby increasing the efficiency of the synthesized material towards various functional applications. Herein, we utilized a filamentous fungus (Sclerotium rolfsii) as a soft bio-template to generate silver nanoparticle (AgNP) microtubules adhering to the fungal hyphae. The resulting composite combines the unique properties of silver nanoparticles with the biological activity of the fungi. The 3D fungal hyphae–silver nanoparticle (FH-AgNP) composite was characterized using SEM, elemental analysis, and the X-ray diffraction technique. Additionally, to highlight the functional application of the synthesized composite, dye degradation studies of methylene blue under visible light was effectuated, and a percentage degradation of 67.86% was obtained within 60 min, which highlights the potent catalytic activity of FH-AgNPs in dye degradation. Further, the antibacterial study of the composite was carried out against the bacterium Escherichia coli, and it was found that 200 µg of the composite exhibited maximum antibacterial properties against Gram positive (Staphylococcus aureus) and Gram negative (Escherichia coli) bacteria. Overall, fungi-templated silver nanoparticle composites are a promising area of research due to their combination of biological activity and unique physical and chemical properties.