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17 result(s) for "Sundaram, Thanigaivel"
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Probiotics in Functional Foods: Survival Assessment and Approaches for Improved Viability
Nowadays, food is no longer just for nutrition. Consumers are more demanding and expect to get health benefits from their daily meals. Various areas of the food industry are in great demand of functional chemicals to enhance the taste and nutritional value of their products. Probiotic bacteria have already been part of the human’s routine for good gut microbiota maintenance in terms of pharmaceutical products. Their incorporation in food however is a challenging task that offers great opportunities but has limitations as well. Specifically, the purpose of this review is to emphasize the importance of probiotics in food, to assess their survival through gastrointestinal tract, and to highlight the recent advances in approaches for their improved viability.
Functionalized Sulfur-Containing Heterocyclic Analogs Induce Sub-G1 Arrest and Apoptotic Cell Death of Laryngeal Carcinoma In Vitro
In this study, we speculate that the hydroxyl-containing benzo[b]thiophene analogs, 1-(3-hydroxybenzo[b]thiophen-2-yl) ethanone (BP) and 1-(3-hydroxybenzo[b]thiophen-2-yl) propan-1-one hydrate (EP), might possess antiproliferative activity against cancer cells. Hydroxyl-containing BP and EP show selectivity towards laryngeal cancer cells (HEp2), with IC50 values of 27.02 ± 1.23 and 35.26 ± 2.15 µM, respectively. The hydroxyl group present in the third position is responsible for the anticancer activity and is completely abrogated when the hydroxyl group is masked. BP and EP enhance the antioxidant enzyme activity and reduce the ROS production, which are correlated with the antiproliferative effect in HEp-2 cells. An increase in the BAX/BCL-2 ratio occurs during the BP and EP treatment and activates the caspase cascade, resulting in apoptosis stimulation. It also arrests the cells in the Sub-G1 phase, indicating the induction of apoptosis. The molecular docking and simulation studies predicted a strong interaction between BP and the CYP1A2 protein, which could aid in combinational therapy by enhancing the bioavailability of the drugs. BP and EP possess an antioxidant property with low antiproliferative effects (~5.18 µg/mL and ~7.8 µg/mL) as a standalone drug, therefore, they can be combined with other drugs for effective chemotherapy that might trigger the effect of pro-oxidant drug on healthy cells.
Nanomaterials: Synthesis and Applications in Theranostics
Nanomaterials are endowed with unique features and essential properties suitable for employing in the field of nanomedicine. The nanomaterials can be classified as 0D, 1D, 2D, and 3D based on their dimensions. The nanomaterials can be malleable and ductile and they can be drawn into wires and sheets. Examples of nanomaterials are quantum dots (0D), nanorods, nanowires (1D), nanosheets (2D), and nanocubes (3D). These nanomaterials can be synthesized using top-down and bottom-up approaches. The achievements of 0D and 1D nanomaterials are used to detect trace heavy metal (e.g., Pb2+) and have higher sensitivity with the order of five as compared to conventional sensors. The achievements of 2D and 3D nanomaterials are used as diagnostic and therapeutic agents with multifunctional ability in imaging systems such as PET, SPECT, etc. These imaging modalities can be used to track the drug in living tissues. This review comprises the state-of-the-art of the different dimensions of the nanomaterials employed in theranostics. The nanomaterials with different dimensions have unique physicochemical properties that can be utilized for therapy and diagnosis. The multifunctional ability of the nanomaterials can have a distinct advantage that is used in the field of theranostics. Different dimensions of the nanomaterials would have more scope in the field of nanomedicine.
Nanostructured materials for efficient microplastic cleanup from soil and water: current trends and future prospects
Microplastics (MPs) and their nano-scale counterparts (Nanoplastics, NPs) have emerged as persistent pollutants in both terrestrial and aquatic environments, posing significant risks to ecological systems and human health. The development of engineered nanomaterials offers a promising path for effective remediation of these contaminants due to their high surface area, catalytic activity, and adaptability. This review provides a comprehensive evaluation of current nanomaterial-based strategies employed for the removal of MPs from soil and aqueous systems. Reported recovery rates for these systems range from 80% to 100%, with zinc-based hybrids demonstrating complete recovery under optimized conditions. More realistic MPs removal comparisons by nanosystems need to be established by experiments in more complex ecologically mimicking habitats. The review also assesses the scalability, material recovery, environmental safety, and operational efficiency of these technologies, which is a novelty of this article. By synthesizing current findings, this study outlines both the technical strengths and existing limitations of nanomaterial-enabled remediation systems, offering insight into future directions for engineered solutions in environmental microplastic mitigation.
AHP-TOPSIS-based analysis for the wettability of agro-industrial waste particulates Bhimal fiber-reinforced epoxy bio-composites in different oil water environments
The work studied the use of agro-industrial untreated waste for bio-composites as a sustainable material and determined its wettability in diverse environments. To prepare the bio-composites, Bhimal natural fiber was compositely reinforced with CaCO 3 composite platelets and Flyash along with TiO 2 at different concentrations (5%, 10%, and15% by weight) into an epoxy matrix. The samples were tested in petrol, diesel; kerosene, seawater Ganga water; rainwater, and distilled water at 168 hours and the saturation was stabilized after measuring every 48 h. The absorption resistance, especially in oil-based environments was excellent in TiO 2 15%-based bio-composites. Materials were ranked by the Analytic Hierarchy Process (AHP) and TOPSIS methods. The results show the potential of TiO 2 composites for low wettability applications without any chemicals as well, which may encourage green materials from agro-industrial waste.
Padina boergesenii-Mediated Copper Oxide Nanoparticles Synthesis, with Their Antibacterial and Anticancer Potential
The utilization of nanoparticles derived from algae has generated increasing attention owing to their environmentally sustainable characteristics and their capacity to interact harmoniously with biologically active metabolites. The present study utilized P. boergesenii for the purpose of synthesizing copper oxide nanoparticles (CuONPs), which were subsequently subjected to in vitro assessment against various bacterial pathogens and cancer cells A375. The biosynthesized CuONPs were subjected to various analytical techniques including FTIR, XRD, HRSEM, TEM, and Zeta sizer analyses in order to characterize their stability and assess their size distribution. The utilization of Fourier Transform Infrared (FTIR) analysis has provided confirmation that the algal metabolites serve to stabilize the CuONPs and function as capping agents. The X-ray diffraction (XRD) analysis revealed a distinct peak associated with the (103) plane, characterized by its sharpness and high intensity, indicating its crystalline properties. The size of the CuONPs in the tetragonal crystalline structure was measured to be 76 nm, and they exhibited a negative zeta potential. The biological assay demonstrated that the CuONPs exhibited significant antibacterial activity when tested against both Bacillus subtilis and Escherichia coli. The cytotoxic effects of CuONPs and cisplatin, when tested at a concentration of 100 µg/mL on the A375 malignant melanoma cell line, were approximately 70% and 95%, respectively. The CuONPs that were synthesized demonstrated significant potential in terms of their antibacterial properties and their ability to inhibit the growth of malignant melanoma cells.
Recent advancement of novel marine fungi derived secondary metabolite fibrinolytic compound FGFC in biomedical applications: a review
For several decades, products derived from marine natural sources (PMN) have been widely identified for several therapeutic applications due to their rich sources of bioactive sub-stances, unique chemical diversity, biocompatibility and excellent biological activity. For the past 15 years, our research team explored several PMNs, especially fungi fibrinolytic compounds (FGFCs). FGFC is an isoindolone alkaloid derived from marine fungi, also known as staplabin analogs or Stachybotrys microspora triprenyl phenol (SMTP). For instance, our previous studies explored different types of FGFCs such as FGFC 1, 2, 3 and 4 from the marine fungi Stachybotrys longispora FG216 derived metabolites. The derivatives of FGFC are potentially employed in several disease treatments, mainly for stroke, cancer, ischemia, acute kidney injury, inflammation, cerebral infarction, thrombolysis and hemorrhagic activities, etc. Due to the increasing use of FGFCs in pharmaceutical and biomedical applications, it is important to understand the fundamental signaling concept of FGFCs. Hence, for the first time, this review collectively summarizes the background, types, mode of action and biological applications of FGFCs and their current endeavors for future therapies.
Identification of serotype O3b and high-risk clone ST37 of Klebsiella pneumoniae revealed by comparative genomic analysis
Epidemiological risk factors such as the demography of a place, environment, food, livestock, and companion animals are known sources of infection. Whole-genome sequencing (WGS) has become a powerful tool to complement traditional microbiological characterization of foodborne pathogens. Moreover, has several species complexes (KpSC) and is very difficult to differentiate using routine microbiological methods. The present study aims to investigate the prevalence of in fish available in the retail market using WGS. Isolation of , identification of isolates, and determination of the minimum inhibitory concentration (MIC) were performed. Whole-genome sequencing of genomes and phylogenomic analysis were conducted for visual comparison of the genomes. Furthermore, genomes of non-human origin that were submitted from India to the NCBI database were downloaded and included in the comparative analysis. The findings showed that many antibiotic-resistant genes (ARGs) are prominent, including , and . Four fish-sourced isolates had different blaSHV resistance gene variants. The presence of ARGs for aminoglycosides [aac(3)-IId], fluoroquinolones (oqxA, oqxB), and fosfomycin (fosA5, fosA6) in these isolates from fish sources was found. One of the CIFT-K6 isolates had the uncommon serotype of O3b with the high-risk clone \"ST37.\" The ST515 sequence type was present in two isolates (CIFT-K7 and CIFT-K8), but the O3b serotype and ST192 allele type were present in the CIFT-K10 isolate. To the best of our knowledge, this research study represents the first Indian report of linked to fish, specifically the high-risk clone 'ST37' and two other STs, 515 and 192. The most common plasmid type detected in all four isolates was IncFIB, and 75% of the isolates were IncFII and IncHI1B. The prevalence of ARGs linked to efflux pump resistance mechanisms is highlighted by the analysis of genome sequence data.
Role of Zinc (Zn) in Human Reproduction: A Journey from Initial Spermatogenesis to Childbirth
Zinc (Zn), the second-most necessary trace element, is abundant in the human body. The human body lacks the capacity to store Zn; hence, the dietary intake of Zn is essential for various functions and metabolism. The uptake of Zn during its transport through the body is important for proper development of the three major accessory sex glands: the testis, epididymis, and prostate. It plays key roles in the initial stages of germ cell development and spermatogenesis, sperm cell development and maturation, ejaculation, liquefaction, the binding of spermatozoa and prostasomes, capacitation, and fertilization. The prostate releases more Zn into the seminal plasma during ejaculation, and it plays a significant role in sperm release and motility. During the maternal, labor, perinatal, and neonatal periods, the part of Zn is vital. The average dietary intake of Zn is in the range of 8–12 mg/day in developing countries during the maternal period. Globally, the dietary intake of Zn varies for pregnant and lactating mothers, but the average Zn intake is in the range of 9.6–11.2 mg/day. The absence of Zn and the consequences of this have been discussed using critical evidence. The events and functions of Zn related to successful fertilization have been summarized in detail. Briefly, our current review emphasizes the role of Zn at each stage of human reproduction, from the spermatogenesis process to childbirth. The role of Zn and its supplementation in in vitro fertilization (IVF) opens opportunities for future studies on reproductive biology.