1Saha Institute of Nuclear Physics, 1/AF, Bidhannagar Kolkata 700 064, India, 2Department of Biophysics, Molecular Biology and Bioinformatics, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India.
The versatile role of CBX4, an important SUMO E3 ligase has been well studied in different biological processes
including DNA damage response, transcriptional regulation and cancer.Although very few reports suggest that
CBX4 itself gets SUMOylated by SUMO1, still in depth study to explore the biological implication of this
association is yet to be divulged. Here we found that CBX4 indeed interacts with SUMO1 in HeLa cells.
Subsequently, DNA damage induction was done using UV radiation to examine the effect on CBX4-SUMO1
interaction. Interestingly, no alteration in the SUMO1 mediated SUMOylation status of CBX4 suggested that the
interaction between CBX4 and SUMO1 is quite robust and it works in a DNA damage-independent manner. Keywords: DDR, SUMOylation, UV radiation, polycomb, regulation
1 Centre for Development of Advanced Computing, (C-DAC) Kolkata, 2 Storage and Post Harvest Technology, Central Potato Research Institute, Shimla. CPRI.
The paper has examined on the non destructive assessment of potatoes using a piezo based sensor. In assessing
the freshness of the product, there are different research reports, but surface firmness is an excellent indicator
and is used extensively in practice .The sensor is used as a vibration sensor where the vibration patterns are
recorded and analyzed in frequency domain and then the quality parameters are displayed accordingly. It is
found that dry matter is related with the firmness of potato tubers which also converts itself to starch content
depending on time and storage of potato tubers as firmness is very useful for processing industry. With some
minor software modifications it can be adopted for other vegetables as well. Keywords: Firmness, Dry Matter, Non-destructive, Piezo, Potato.
1Department of Chemistry, Presidency University, 86/1 College Street, Kolkata-700073
Nano particles usually exhibit remarkable physical properties, rapid chemical reactivity, and high sorption
capacity for inorganic compounds. Studies of the fate and transport of nano particles were largely concerned
with their properties and behavioral change over time, whether they would interact with toxic contaminants after
being released into the environment.Keeping in line with the above facts, here, we aim to develop an efficient
material by eco-friendly green synthetic route that was further characterized to be crystalline ranging in nanodimension for filtering heavy metals containing groundwater. The average particle size was found to be
approximately 3.56 nm calculated from the Gaussian fit of the distinct peaks and then computing its modeled
data into Scherrer’s equation.The thermal stability of iron(III)-cerium(IV) mixed oxide nanoparticle
agglomerates (NICMO) was well established from the consistent particle size at different temperature and also,
from differential thermal. The bimetal mixed oxide contained agglomerated crystalline nano-particles of
dimension 10-20 nm held together by crystal packing forces and, its corresponding empirical composition
FeCe1.1O7.6. Appearance of weak band at 534 cm-1
in the FTIR spectrum of NICMO is presumed for the
presence of hetero- metal bonding via oxygen linkage (i.e, Fe-O-Ce). Scanning electron microscopic (SEM)
image of NICMO established the agglomerated surface morphology with irregular shape that was unevenly
dispersed over a base matrix of oxide surface almost covering up its porous nature. Decreasing sharpness of
inflexion points of NICMO in BET isotherm indicates porosity arising out of channels of the template
framework but surely with non uniformity in pore size distribution.The positive change in entropy (∆S°) values
of both Pb(II) and Cd(II) species with NICMO in the systems investigated conclude that the reactions were
entropy driven, occurring with increase of randomness at solid-liquid interface owing to the release of water
molecules when hydrated Pb(II) and Cd(II) species binds on to the solid surface
Keywords: Nano-dimension,surface morphology, pore size distribution, solid-liquid interface.
1Department of Physics,Techno Internationa, B7-360 / New, Ward No. 30 , Maheshtala , South 24 Parganas Pincode- 700141 West Bengal , India
A few deadliest catastrophes in the Asia-Pacific regions are Tsunami on 22.12.2004; Aila on 25.05.2009;
earthquakes on 11.03.2011 and 25.04.2015; Tornados on 26.04.1989 and Cyclones on 12.11.1970. Very
recently Cyclone Fani has smashed parts of Odisha and West Bengal in May 3 – 5, 2019, which has
befallen due to climate change.The monitoring of rotational and orbital motions of the Earth is one of the
key objectives of this research to observe whether those have any role behind these calamities. Since
April 2005 data has been recorded, and analyzed data infers the climatic change. Comparative studies
between the experiment and theory show that the earth was walking away during the period of tsunami
2011 to Kathmandu earthquake 2015. A bizarre etiquette of the earth has increased zenithto 0.3686o and
rotational angle to 5.58o
annually. If this state of affairs continues the local temperature will be 50o C in
Keywords: Earthquake, Environmental temperature, planetary motion, solar spectrum, Tsunami
1Biochemistry Lab Assistant, MEDILAB (ISO 9001:2015), Garia, Kolkata, India 2School of Life Science and Biotechnology, Adamas University, Kolkata-700126.
With the help of nanoparticles treatment of diseases without any side effects can be achieved with the help of
nanotechnology. The devices operating at nanoscale range such as nanoparticles, paves the path for a new method for
imaging, diagnosis and therapy. Nanoparticles have antimicrobial properties which can locally destroy bacteria, without
doing any harm to the surrounding tissues. This review focuses on the antimicrobial effects of nanoparticles.
Keywords:Nano particles, nanoscale, antimicrobial properties.
1 Ecology and Environmental Modelling Laboratory, Department of Environmental Science, University of Burdwan, Burdwan-713104, India.
The water quality status of some water bodies in Kolkata were assessed during dry season through the
analysis of various physico-chemical and biological components. Studies revealed that water of all the
ponds were alkaline with pH value ranging from 7.80 to 8.41 at water temperature between 28.0 and 28.5.
Total Dissolved solids (TDS) varied from 310 to 710 mg/L with higher in Science city (710 mg/L),
followed by Victoria (366 mg/L), B.B.D.Bag (310 mg/L) and Minto park (250 mg/L). Minimum of 56%
dissolved oxygen saturation values were observed in the pond of Science city implying presence of higher
oxygen demanding waste and maximum (96%) in B.B.D.Bag indicating lowest level of reducing
substances. Lower ratios of BOD/COD ranging from 0.18 to 0.29 implied the presence of comparatively
higher level of non-biodegradable organic matter in water. According to National Sanitation Foundation
Water Quality Index (NSF-WQI) values, water quality of two ponds (Victoria and Minto park) were
classified as good to excellent, one (B.B.D.Bag) is medium to good and another (Science city) is bad which
corresponded to the class A, B and C respectively as classified by Central Pollution Control Board (CPCB).
Keywords: Water Characteristics; Assessment; Ponds; Water Quality Index; Kolkata.
International Journal of Chemical and Environmental Sciences (IJCAES)
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