Chemical characterization and health risk assessment of heavy metals, polycyclic aromatichydrocarbons, fine and ultrafine plastics in particulate matter (PM2.5) of road dust in Bangladesh
Research introduction (from October, 2019)

Bio data

Research summary

Name: Tanzin Chowdhury

This study will assess the pollution levels & health effects of heavy

Nationality: Bagladeshi

metals, PAHs, and fine & ultra fine plastics present in road dust.

Keywords: Environment, dust, heavy metals,
pollution,PAHs,micro(nano)plastics

Though many studies have been conducted on those parameters

Research Advisor: Prof. WANG Qingyue

countries but very few reports are available on plastic & urban

Research introduction (from October, 2019)especially on micro(nano) plastics in aquatic environment in various

Why I select this program

road dust of Bangladesh. So, it is important to study the plastic

Dhaka, the capital of Bangladesh, hold 1st or 2nd position in thepollution in road dust samples of Bangladesh. From this researchcontext of Air Quality Index for several times in recent years. Urban
road dust is the major sources of PM2.5 constituting heavy metals,PAHs, and fine & ultra fine plastics which may be produced byeither natural or anthropogenic activities. As an environmental
chemist, I am interested to investigate the present pollution

some new findings might be observed from which a number ofscientific articles will bepossible to publish in highimpact factor peer reviewed
journals.

situation causing through urban road dust and their impacts onhuman health.

© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Research introduction

Study on production and characterization of liquefied waste agricultural cotton
stalk and its application to resin

Formation, Structure, and Function of Polymer-Based Nanocomposites
including Organo-modified Single-walled Carbon Nanotubes
Research introduction (from October, 2019)

Bio data
Name: Nuerjiamali Tuohedi
Nationality: China
Keywords: Waste agricultural biomass,liquefaction, polyhydric alcohols,
polyurethane foams, epoxy resin
Research Advisor: Prof. Wang Qingyue

Why I select this program
Xinjiang Region is a natural economy mainly composed ofagriculture & pastoralism has abundant crops. At present,
agricultural waste is not used in particular & often burned for
disposal, which causes waste of resources & environmental
pollution, leading to health problems for farmers. In addition, alarge amount of energy & resources are being used witheconomic development in the western region. The use of fossil
fuels & burning of agricultural waste has exacerbated pollution
problems. Therefore, it is meaningful to study process ofincreasing the utility value of entire biomass & preventing theenvironmental pollution.

properties to petroleum
analogs. The above research
Cotton is planted on a large
scale in China & major crop in is in order to search aneffective method to utilize theXinjiang region. A large
amount of cotton plant residue cotton stalk and otheragricultural straws. The
is produced annually, thesepresent a disposal problems. method can utilize the richresource of agricultural straw
The purposes of this study
were to liquefied cotton stalk with little pollution and lessen
the dependence of chemical
powder with the liquefactionindustry on the oil.
use of polyethylene glycol &glycerin as liquefaction
solvent. Effects of liquefactionparameters on bio-polyols &polyurethane forms & epoxy
resin were investigated. Biopolyols and polyurethane
forms exhibited comparableResearch summary© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Bio data
Name: Ahmed Abd-Elhady Almarasy
Nationality: Egyptian
Keywords: Carbon nanotube, LB film,
Surface-modification, Nanocomposite
Research Advisor:
Assoc. Prof. Atsuhiro Fujimori

Why I select this program
I am interested in studying nanomaterials and thin films and applied forthis program. I have been graduated from Chemistry Department, Facultyof Science, Tanta University, Egypt since 2010. In 2012, I have been
finished my postgraduate studies in advanced courses in chemistry.
Recently, I have been awarded my M.Sc. degree from the Faculty ofScience, Tanta University, Egypt in June, 2016 entitled "The modificationof some nanomaterials having potential applications in water qualityupgrading". I am looking for continuing my studies in Saitama University.

Research summary
Crystalline polymer/single-walledcarbon nanotube (SWCNT)
nanocomposites were prepared usingorgano-modified SWCNTs with surface
modification by long-chain phosphonicacid derivatives having bidentate
bonds, resulting in excellent heat

resistance properties. The utilization ofphosphonic acid derivatives containing
fluorocarbon chains endowed SWCNTs
with remarkable cohesive properties inphase-separable crystalline
fluoropolymers to achieve polymerbased nanocomposite formation.

© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Research introduction (from October, 2019)

Chemical characteristics and inflammation response of Humic-like substances (HULIS)
in aerosol: A Seasonal Observation in 3 Large Cities in East Asian

Bio data
Name: XIAO KAINationality: China
Keywords: Aerosol, HULIS, ROS, DTT,inflammation
Research Advisor: Prof. Qingyue Wang

Why I select this program
Atmospheric HULIS are a mixture of water-soluble poly-acidic
compounds, accounting for ~10% of fine particles and 9~72% of watersoluble organic carbon (WSOC) in ambient fine particles, respectively.
HULIS can induce reactive oxygen species (ROS) upon respiratory
deposition, which perturbs the redox equilibrium in the affected cells. Atpresent, research on HULIS in atmospheric particles is scarce, andnumerous studies are needed to assess the seasonal changes, sources
and formation mechanisms of HULIS ,in order to assess its air quality
and its impact on human health.

to reveal the seasonal changes, sources ,formation mechanisms and inflammation
Systematic research on the chemical
response of HULIS.
properties, sources, redox activity
and inflammation of HULIS is still
limited. In this experiment, aerosols
were collected from Taiyuan,
Shanghai and saitama city for oneyear. The physical and chemical
characteristics of the collectedparticles were analyzed byultraviolet–visible (UV-Vis) ,inductively coupled plasma mass
spectrometry (ICP-MS), gas
chromatography-mass spectrometry(GC-MS), total organic carbon
analyzer (TOC) ,inorganic ion(IC).
We applied cell-free dithiothreitol(DTT) assay to assess the capabilityof HULIS to generate reactive
oxygen species (ROS) and A549
and Beas-2B cells were cultured toevaluate the inflammation caused by
HULIS exposure. The above researchis in order to provide new scientific data

Research summary© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Research introduction (from October, 2019)
Optical Resolution of Carboxylic Acids by Diastereomeric Salt Formation with Chiral Amidines

Bio data
Name: Chandrasekaran Srinivas
Nationality: Indian
Keywords: Enantiomers, isomerism, chiral,amidines, carboxylic acids, diastereomeric salt
Research Advisor: Dr. Koichi Kodama

Why did I select this program
There are a number of academic factors to consider while
selecting a program. Especially, the primary factor is whether theprogram curriculum is designed to meet students passion and areas ofinterest or not.
This academic program is designed in such a way to meet
students essential academic requirements which would give them anopportunity to attain a challenging position in the field of science andtechnology with their technical and analytical skills.

Research summary
Enantiomers are gaining tremendous ever-increasing significance inorganic chemistry research, both in the industrial and academic arenas
nowadays. These compounds rotate plane-polarized light in the sameangle but in opposite directions; however, the practical importance of thisisomerism goes beyond this curious behavior. The significant applicationof chiral molecules in optically pure form as biologically activecompounds, as additives for tailoring polymer properties and in optoelectronic devices reveals the importance of chirality and demands
efficient methods for obtaining the compounds in an enantiomerically,
highly pure form. Despite the available alternate conventional and nonconventional techniques, optical resolution via diastereomeric salt
formation remains the widely preferred method of obtaining pureenantiomers on an industrial scale owing to its simplicity and costeffectiveness. In this research work, we propose to employ chiralamidines (as amidines are highly basic than amines) for the opticalresolution of carboxylic acids by diastereomeric salt formation.

© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Spatial and Seasonal Variations of Chemical Composition and Risk Assessments of Road Dust inUrban Areas, Bangladesh
Research introduction (from October, 2018)
Bio data
Name: Md Humayun Kabir Rubel
Nationality: Bangladesh
Keywords: Road dust, Heavy metals, particle size,Risk assessment, Urban areas
Research Advisor: Prof. Qingyue Wang

Why I select this program
Urban air pollution and its effects are becoming an issue of great concern
for developing countries. One of the major components of urban
pollutants is road dust. Dust on the roads arise from unregulated
construction sites and are constantly stirred up by moving vehicles.
Pollutants in the road dust generate from soil materials, traffic related
exhaust, industrial activities, atmospheric deposition, power plant, coal
combustion etc. Distribution of chemical alignment in road dust depends
on land use patterns, temporal variation and also particle size of roaddust. On the other hand, pollutants existing in road dust may generate
ecological and health threats and their assessment is of great
environmental significance. Unfortunately, we do not have many studies
covering these aspects.

Research summary
To analyze spatial and seasonal
distribution patterns, risk andsources of heavy metals, road dust
samples will be collected fromdifferent roads in two cities namely
Dhaka (Capital of Bangladesh) andMymensingh (Background site) insummer and winter seasons. The
collected dust will be subjected to
fractionation for four particle size(<32µm, 32-75µm, 75-150µm and150-250µm). Then heavy metals will
be determined using ICP-MS aswell as water soluble ions by IC.
Afterwards, Health and ecologicalrisk will beseasonal variation of heavy metals
in roadside dust associated with
their sources. It will help the city
authority managing pollution in
urban areas.

evaluated. Possible sources will be
explore using PMF model.
The research result will reveal the© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan

Research introduction (from October, 2017)
The potential renewable energy resource development and utilization of biomass

Bio data
Name: JAYANTO KUMAR SARKAR
Nationality: Bangladesh
Keywords: Biomass, pyrolysis, gasification, bioenergy.
Research Advisor: Prof. Qingyue Wang

Why I select this program
The research scope and environment in the laboratory during my masterstudy was the latest which also motivated me to continue further study inthe same university. At master study, I was carrying out research relatedto pyrolysis and gasification for bioenergy production which is the mostimportant aspect for the countries that use alternative of nonrenewableenergy. Japan is one of the best with such type of research too. As a partof my further study like a doctoral student, I would like to cope myself withthe advance research on similar field while my present laboratory anduniversity is mostly compatible with this research.

Research summary
The conversion of biomass feedstock
into valuable products is now feasible
due to new technologies. My researchplan is “The potential renewableenergy resource development andutilization of biomass” in doctoral courseof Saitama university, Japan. thermoschemical conversion technology forbiomass has been started over the last
three decades but more work should beneeded to find out existing morenatural resources and commercial
exploitation. My research view will bethermos-chemical conversation ofdifferent kinds of waste biomass.
However, my desired research could
convert waste as a natural resource
where present waste will be will bechanged as a remarkable source ofenergy© Program for Highly-skilled Professionals for Development of Green & Sustainable Chemical Technologies applied to Asian Poverty, Saitama University, Japan