P. College) is an Autonomous (since 2019) college in Pune, Maharashtra, India. Established in 1916, as New Poona College at the hands of the British Governor Lord Willingdon. The college was renamed as Sir Parashurambhau College as a mark of gratitude towards the then ruler of Jamkhandi State who donated Rs. Two lakhs in the memory of his father, Parashurambhau Patwardhan. The college is governed by Shikshan Prasarak Mandali, a private education society in Maharashtra. S. P. College provides a platform for cultural activities and promotes students to cultivate their skills. The present site of the college was leased to the Shikshan Prasarak Mandali by Shri. Sardar Jagannath Maharaj Pandit at the request of Lokmanya Bal Gangadhar Tilak[citation needed].SP College also offering many platforms to overall personality development of students.P.
This study reports the synthesis and comprehensive characterization of bismuth oxyiodide (BiOI) nanostructures using XRD, SEM, HRTEM, UV–Vis, BET, Raman spectroscopy, and AFM. The XRD data confirm the formation of tetragonal phase of BiOI. Raman spectroscopy identifies the characteristic Bi–I stretching mode (143.93 cm−1) and morphological analysis by FESEM and HRTEM reveals BiOI nanostructures with rod-like morphology and uniform particle distribution. Photocatalytic performance was evaluated by degradation of crystal violet dye under sunlight, where BiOI achieved a degradation efficiency of 26
Present study reports the synthesis and characterization of BiOI and PQ-BiOI (0.05, 1, 1.5 wt%) nanocomposites using XRD, SEM, EDX, HR-TEM, FTIR, UV, TGA, PL, BET, Raman spectroscopy and AFM. The XRD analysis with PDF No.10-0445 confirms the tetragonal phase of BiOI and monoclinic phase of 6,13-pentacenequinone (PQ) with PDF no. 47-2123. Raman spectroscopy reveals the retention of BiOI's intrinsic Bi-I stretching mode at 143.93 cm-1 in the PQ-BiOI composite. FE-SEM and HR-TEM analyses shows uniform BiOI distribution on flake-like 5-10 mu m of PQ with uniform 15-20 mu m BiOI distribution on sheets. The photocatalytic performance was evaluated through crystal violet (CV) dye degradation under sunlight, where BiOI-1.5 wt% PQ efficiency 99.4%, with a rate constant 3.72 & times; 10-2 min-1, which is 25-fold higher than pure BiOI (0.133 & times; 10-2min-1). These results and the recycling investigation demonstrate how BiOI-PQ nanocomposites' exceptional photocatalytic activity and stability make them proficient photocatalysts which is hitherto un-attempted.
Cobalt ferrite (CoFe2O4) nanoparticles were synthesized via a plant-assisted sol–gel auto-combustion route using Coriandrum sativum leaf extract as a natural reducing and stabilizing agent. Structural characterization confirmed the formation of a phase-pure cubic spinel structure with an average crystallite size of 16.47 nm. Magnetic measurements performed using Vibrating Sample Magnetometry (VSM) at room temperature exhibited saturation magnetization (Ms) of 169.5200 emu/g, remanent magnetization (Mr) of 72.2145 emu/g, and coercivity (Hc) of 881.7697 Oe, indicating stable ferromagnetic behavior. Antibacterial assessment using the Kirby–Bauer disk diffusion method revealed inhibition zones ranging from 11 to 30 mm against the tested microbial strains. The enhanced antimicrobial response is attributed to nanoscale crystallinity and increased surface reactivity. The results demonstrate that Coriandrum sativum-mediated green synthesis offers a sustainable strategy for producing structurally pure and magnetically functional cobalt ferrite nanoparticles with potential biomedical relevance.
A BSTRACT Background: Potentized homeopathic preparations have been shown to contain nanoparticles of the source material that can trigger therapeutic responses. The objective of the present work is to apprehend the mechanism of action of homeopathic investigational medicinal products (IMP) for cytotoxicity against cancer cell lines employing the chick embryo model. Methods: Chick embryo yolk sac membranes (YSM) treated with IMPs were homogenized to obtain the enzyme extracts. Antioxidant enzyme Catalase (CAT) was assessed by measuring the decomposition of H 2 O 2 , while the nitro blue tetrazolium (NBT) photochemical assay was used to estimate the level of Superoxide Dismutase (SOD). The chick embryo YSM assay was employed for the angiogenic screening. In this assay, YSMs were photographed 24 hours after the exposure to IMPs (1:10, 40 μl), followed by counting the types of blood vessels using ImageJ software. Results: Exposure of the chick (YSM) to IMPs resulted in a statistically significant decrease in the level of CAT. The estimated amount of Catalase (U/ml) was in the order of the control (0.1641 ± 0.039), Carcinosin 30c (0.1323 ± 0.0102, P = 0.03), HIV Nosode 50c (0.1226 ± 0.0227, P = 0.04), and Cancer nosode 30c (0.0821 ± 0.067, P = 0.004). On the other hand, IMPs exhibited negligible effect on the activity of SOD. We detected SOD (U/ml) in the order of control (25.680 ± 0.0190), Carcinosin 30c (23.130 ± 0.053), Cancer nosode 30c (29.340 ± 0.084) and HIV nosode 50c (29.369 ± 0.021). Exposure of chick YSMs to Carcinosin 30c ( P = 0.02), Cancer nosode 30c ( P = 0.03) and HIV nosode 50c ( P = 0.06) revealed their anti-angiogenic nature. Conclusion: The results unequivocally demonstrate that the cytotoxicity of IMPs in this study against cancer cell lines is due to their potential to increase ROS beyond life threshold by decreasing the level of Catalase and decreasing the growth of neo-angiogenesis in YSM model.
The climatic changes have direct effect on the tourism economy, as it augment the human discomfort and narrow down visiting periods at tourist destinations. Developing countries including India have high potential for rapid growth of tourism industry but at the same time are considerably vulnerable to climatic changes. The present investigation, therefore, attempted to understand climatic changes (past and future) and their influence on favourability for tourism in coastal and semi-arid regions of Maharashtra. For this, temperature, rainfall, humidity, wind speed and sunshine duration data of 17 stations for the period between 1981 and 2100 were considered to calculate the Tourism Climate Index (TCI) formulated by Mieczkowski. Parametric and non-parametric statistical techniques were applied to understand trends and step-changes in climatic variables and TCI. It is observed that the Madhya Maharashtra and Konkan Subdivisions experienced rise in annual mean (0.73 and 0.52 °C, respectively) and mean maximum (0.40 and 0.59 °C, respectively) temperature during 1991–2023 period. During the same period, the study area registered marginal (16 to 46 mm) amount of increase in rainfall. The simulated data (RCP 4.5 and 8.5) suggest a considerable rise in annual mean maximum (1.1 to 3.2 °C) and mean (1 to 3 °C) by 2100. Summer and winter seasons (main vacation periods) are very likely to have adverse climate for tourism in future (up to 2100). Rise in temperature (particularly maximum) and humidity will be the prominent factors to amplify discomfort and deterioration of TCI. Moreover, the coastal region may have rainfall as another cause for the same. Broadly, the study area may witness a notable exacerbation in climate favourability for tourism after 2060. The estimated adverse changes in climate have potential to shorten the optimal period for tourism in all season, which may reduce the volume of international and intra-national/domestic tourist and eventually hamper the tourism economy. Therefore, in order to minimize the adverse effects of climate change and maintain tourism development, the concerned government and non-government agencies should have climate-resilient tourism polices and plan.
