A. C. A. Jayasundera

A. C. A. Jayasundera

University of Peradeniya

H-index: 9

Asia-Sri Lanka

Professor Information

University

University of Peradeniya

Position

___

Citations(all)

244

Citations(since 2016)

198

Cited By

73

hIndex(all)

9

hIndex(since 2016)

6

i10Index(all)

8

i10Index(since 2016)

4

Email

University Profile Page

University of Peradeniya

Research & Interests List

Solid State Chemistry

Environmental Chemistry and Chemical Education

Co-Authors

H-index: 156
Yong Sik Ok, HCR in Environment and Ecology, Engineering and Cross Field

Yong Sik Ok, HCR in Environment and Ecology, Engineering and Cross Field

Korea University

H-index: 46
Wu-Jun Liu (刘武军)

Wu-Jun Liu (刘武军)

University of Science and Technology of China

H-index: 36
Adrian Finch

Adrian Finch

University of St Andrews

H-index: 30
Rachel C. Evans

Rachel C. Evans

University of Cambridge

H-index: 18
Nadeesh Madusanka Adassooriya

Nadeesh Madusanka Adassooriya

University of Peradeniya

H-index: 15
Sammani Ramanayaka

Sammani Ramanayaka

University of Sri Jayewardenepura

H-index: 2
Chathudina J. Liyanage

Chathudina J. Liyanage

Sabaragamuwa University of Sri Lanka

Professor FAQs

What is A. C. A. Jayasundera's h-index at University of Peradeniya?

The h-index of A. C. A. Jayasundera has been 6 since 2016 and 9 in total.

What are A. C. A. Jayasundera's research interests?

The research interests of A. C. A. Jayasundera are: Solid State Chemistry, Environmental Chemistry and Chemical Education

What is A. C. A. Jayasundera's total number of citations?

A. C. A. Jayasundera has 244 citations in total.

What are the co-authors of A. C. A. Jayasundera?

The co-authors of A. C. A. Jayasundera are Yong Sik Ok, HCR in Environment and Ecology, Engineering and Cross Field, Wu-Jun Liu (刘武军), Adrian Finch, Rachel C. Evans, Nadeesh Madusanka Adassooriya, Sammani Ramanayaka, Chathudina J. Liyanage.

Top articles of A. C. A. Jayasundera

Harnessing of low-energy IR photons via oxygen-vacancies in SrTiO3 nanocrystals for photocatalytic hydrogen production

The surface-oxygen vacancies were generated to enhance the near-IR light response of the SrTiO3 photocatalyst by heating SrTiO3 in a highly reducing environment. The UV–visible diffuse reflectance spectra of SrTiO3-Ov revealed strong absorption between 400 and 800 nm, while IPCE response was extended beyond 800 nm, confirming the near-IR light response of SrTiO3-Ov. The hydrogen production rates for SrTiO3-Ov at pH 3.0 under full solar spectrum, visible and IR radiation were 100, 25 and 10 μlg−1h−1, respectively. The respective normalized hydrogen with respect to light intensity were found to be 100, 50 and 33 μlg−1h−1 while hydrogen production of pristine SrTiO3 was less than 2 μlg−1h−1 under full solar spectrum. The mid-gap Ov and Ti3+ states in SrTiO3-Ov are key factors in the origin of the near-IR responses of the catalyst and the feasibility of using low-photonic-energy IR light to produce …

Authors

Jayasundera Bandara,Chathurika Rajapaksha,CA Jayasundera,H Tan,C-F Yan

Journal

International Journal of Hydrogen Energy

Publish By

Pergamon

Publish Date

2023/5/26

Iodine Nutrition: Iodine content in iodized salt in Sri Lanka and the effect of temperature and storage conditions on the stability

BackgroundThe major source of dietary iodine for the Sri Lankan population is iodized salt. The recommended fortification level of iodine is 15.0–30.0 ppm. Both excessive and insufficient iodine levels are harmful to the human body. Inadequate consumption of iodine leads to iodine deficiency disorders and excessive intake causes iodine-induced hyperthyroidism.MethodsThis study assessed the iodine content in commercially available salt products and evaluated the stability of iodine under different storage conditions. Packeted crystal and powdered salt products were used to determine the total iodine content by analyzing both iodide (I−) and iodate (IO 3−). The effect of temperature and packaging material on the stability of iodine was also recorded.ResultsThe results revealed that five products out of ten exceeded the recommended iodine level and were in the range of 31.60±1.5 to 42.19±3.48 ppm. The iodine content of four products was within the recommended fortified levels, and one had a lower amount of 12.77±0.35 ppm. The mean iodine content of powdered salt was 35.08 ppm and 27.25 ppm in crystal salt. There was no significant effect of temperature at 25 C, 45 C, and 95 C on total iodine level and iodine level by iodate. The total mean iodine loss after heating to 95 C for 30 minutes was 5.0% in powdered salt and 8.7% in crystal salts. Total iodine retained during storage in opened containers for one week in glass containers was 90.78% in crystal salt and 87.11% in powdered salt. The percentage of iodine retained in plastic containers was 83.77% in crystal salt and 71.6% in powdered salt. In coconut shell containers 61.94% and …

Authors

HHKAPK Hettiarachchi,GMGCK Premachandre,ACA Jayasundera,DA Satharasinghe,WMAP Wanigasekera

Journal

Ceylon Medical Journal (CMJ)

Publish By

Sri Lanka Medical Association

Publish Date

2023

Hydroxyapatite incorporated bacterial cellulose hydrogels as a cost-effective 3D cell culture platform

For cell and tissue physiology research, drug discovery, and growing replacement tissues for regenerative medicine, accurate and cost-efficient in vitro techniques are increasingly demanded. The conventional model for in vitro cell culture is the two-dimensional (2D) culture. Yet, cells have been found to be more native when they are grown in 3D conditions. We present here the development and evaluation of biological properties of bacterial cellulose/hydroxyapatite (BC/HA) nanocomposite hydrogel as a potential 3D cell-culture platform. The synthesized composites were characterized using Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Swelling measurements and Celltiter 96® Aqueous One Solution Cell Proliferation Assay (MTS) using mouse fibroblast cell line (L – 929). The arrangement of composites shown in SEM and AFM images closely resembles the native extracellular matrices …

Authors

Sandya Shiranthi Athukorala,Chathudina J Liyanage,Anil CA Jayasundera

Journal

Soft Materials

Publish By

Taylor & Francis

Publish Date

2022/4/3

Sustainable pressure-driven membrane facility controlled by a smartphone application for groundwater desalination in the dry zone of Sri Lanka

Presently over three million people, mostly living in the dry zone of Sri Lanka, experiencing acute water stress due to excess salinity which results in palatability problems. In many parts of the world, reverse osmosis (RO) and nanofiltration (NF) technologies are successfully used for water desalination. However, in Sri Lanka, these methods show limited success due to inappropriate or over technologies adapted. The selection of the membranes depends on the source water salinity variations. We judiciously selected a groundwater source that requires desalination. The geochemical evolution of the groundwater source was determined by the 1D inverse modelling method. The source water salinity is ascribed to the incongruent dissolution of silicate minerals into montmorillonite followed by an ion-exchange process. The transition of geochemical facies from (non-dominant cation) NDC-HCO3-(discharge zone) to Ca-HCO3(recharge zone) water type is observed along subsurface flow paths. After regulating the water turbidity (below 0.1 NTU), appropriate RO and NF membrane configuration was chosen for desalination. No external chemicals were added to maintain electrolytes balance in the treated water. The wastewater generated by the membrane treatment is blended appropriately for other community water needs. The chemical quality of treated water was optimized by a homogeneous diffusion-solution modelling method. The laboratory water plant is automated enabling remote operation and user-end maintenance via a mobile phone application. This step is vital to minimize community participation in plant maintenance. By our method, over …

Authors

Z Wu,N Senanayake,S Dayaratna,D Bandara,R Pathmanadan,T Ritigala,SK Weragoda,L Jayarathna,ACA Jayasundara,Y Wei,X Chen,R Weerasooriya

Journal

Ceylon Journal of Science

Publish By

Faculty of Science, University of Peradeniya, Sri Lanka

Publish Date

2022/3/14

Mechanochemical Synthesis of Polymorphic Urea⋅ Adipic Acid Cocrystal as a Sustained‐Release Nitrogen Source

A 2 : 1 urea ⋅ adipic acid cocrystal was obtained in two polymorphic forms (Form I reported earlier, and Form II synthesized in this study) using mechanochemistry as well as solution crystallization. Lower solubility and leaching study showed the newly synthesized urea ⋅ adipic acid 2 : 1 cocrystal to be an efficient sustained‐release nitrogen fertilizer compared to commercially available urea.

Authors

Shalika Parakatawella,Diptajyoti Gogoi,Poonam Deka,Yizhi Xu,Chanaka Sandaruwan,Anil CA Jayasundera,Mihails Arhangelskis,Ranjit Thakuria,Nadeesh M Adassooriya

Journal

ChemSusChem

Publish Date

2022/2/8

Tagetes lemmonii (Atapethiya) as a Potential Candidate for Phytoremediation of Cadmium in Soils

Phytoremediation is one of the eco-friendly strategies used to remove heavy metals such as Cadmium (Cd) from the environment. Tagetes erecta is one such plant used in the phytoremediation of Cd polluted soils. T. lemmonii which belongs to the same genus was used in the current study to investigate its tolerance to cadmium to determine its suitability in phytoremediation of Cd under greenhouse conditions. One-month-old nursery plants were uprooted and transferred into soil containing pots and allowed to establish under greenhouse conditions for one week. Then, soil in pots was treated with 20 mgkg-1, 50 mgkg-1, 100 mgkg-1, and 200 mgkg-1 Cd2+ concentration series with four replicates for each. The control treatments were four pots of plants without Cd2+ added and four pots of soil treated with Cd2+ in each concentration without plants. At two-day intervals, morphological changes such as the height of the plant, and the number of leaves were observed and after 14 days, plants were uprooted and the number of leaves, leaf area, number of rootlets, length of the root, length of the shoot, and total length of the plants were compared among treatments and

Authors

T.G.A.N.I.N,Wimalajeewa,A.D.S.N.P. Athukorala,N.H. Koralegedara,A.C.A. Jayasundera

Publish Date

2022

Recent breakthroughs in nanostructured antiviral coating and filtration materials: a brief review

COVID-19 persists as the most challenging pandemic of the 21st century with a high rate of transmission. The main pathway of SARS-CoV-2 transmission is aerosol-mediated infection transfer through virus-laden droplets that are expelled by infected people, whereas indirect transmission occurs when contact is made with a contaminated surface. This mini review delivers an overview of the current state of knowledge, research directions, and applications by examining the most recent developments in antiviral surface coatings and filters and analyzing their efficiencies. Reusable masks and other personal protective devices with antiviral properties and self-decontamination could be valuable tools in the fight against viral spread. Moreover, antiviral surface coatings that repel pathogens by preventing adhesion or neutralize pathogens with self-sanitizing ability are assumed to be the most desirable for terminating …

Authors

Madushani H Dahanayake,Sandya S Athukorala,ACA Jayasundera

Publish By

Royal Society of Chemistry

Publish Date

2022

Nano-based drug delivery optimization for tuberculosis treatment: A review

Regardless of advanced technology and innovation, infectious diseases continue to be one of the extreme health challenges in modern world. Tuberculosis (TB) is one of the top ten causes of deaths worldwide and the leading cause of death from a single infectious agent. The conventional TB drug therapy requires a long term treatment with frequent and multiple drug dosing with a stiff administration schedule, which results in low patient compliance. This eventually leads to the recurrence of the infection and the emergence of multiple drug resistance. Hence, there is an urgent need to develop more successful and effective strategies to overcome the problems of drug resistance, duration of treatment course and devotion to treatment. Nanotechnology has considerable potential for diagnosis, treatment and prevention of infectious diseases including TB. The main advantages of nanoparticles to be used as drug …

Authors

Madushani H Dahanayake,Anil CA Jayasundera

Publish By

Elsevier

Publish Date

2021/2/1

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