Article
Chemistry, Inorganic & Nuclear
B. B. Sahoo, V. S. Pandey, A. S. Dogonchi, D. N. Thatoi, N. Nayak, M. K. Nayak
Summary: Nowadays, borophene and related materials have attracted significant interest due to their distinctive properties. Borophene is considered as the most promising material in various applications such as energy, sensor, and biomedical fields. It has been used in the preparation of high-performance supercapacitors due to its superior flexibility, capacitance, and conductivity compared to graphene. This study aims to explore the literature on the synthesis, stability, and characteristic properties of borophene and related materials using experimental methods, in order to utilize them in the production of high-performance supercapacitors. The findings reveal that synthesizing borophene from various crystallographic structures of boron can provide new insights for its large-scale implementation. Raman spectroscopy and zeta potential analysis are employed for the structural and stability analysis of borophene and its associated materials. In particular, the PANI: α-borophene nano network electrode exhibits high specific capacity and good stability for supercapacitors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Zabin Begum Khoje, Shyam KumarVootla, Muniswamy David
Summary: In this study, the non-conventional approach of analyzing DNA damage in the brain of rats exposed to sub-lethal doses of carbofuran was investigated. Changes in band area and band frequencies in nucleic acids were examined using FTIR spectroscopy and chemometric analysis. The results showed significant alterations in band frequency, band areas, bandwidth, and intensity values, indicating DNA damage. Principal component analysis revealed variations at the molecular level, with different exposure durations and doses having distinct impacts on DNA damage. This study provides important insights into analyzing DNA damage in neural diseases and disorders, emphasizing the use of FTIR spectral data and chemometric approach.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Multidisciplinary Sciences
Niyom Hongsith, Suphansa Chansuriya, Sakda Koenrobket, Somrit Unai, Ekasiddh Wongrat, Anurak Prasatkhetragarn
Summary: The mechanism of electron transfer reaction on the surface of ZnO nanoparticles-based gas sensor has been investigated in this study. The researchers found that by altering the sputtering time and coating different metals on the surface, the sensitivity of the sensor was significantly enhanced. Moreover, the analysis of particle size distribution and ζ potential of ZnO nanoparticles provided a theoretical basis for the gas sensing mechanism.
Article
Biochemistry & Molecular Biology
Fatimah Al-Otibi, Reem A. Al-Ahaidib, Raedah I. Alharbi, Rana M. Al-Otaibi, Gadah Albasher
Summary: The study demonstrates the significant antibacterial and antifungal activities of Aaronsohnia factorovskyi plant extract in combination with silver nanoparticles, showing the ability to biogenically synthesize stable silver nanoparticles with diameters ranging from 104 to 140 nm.
Article
Chemistry, Multidisciplinary
Hendrik Brunst, Hafiz M. A. Masood, A. Rafael Thun, Alexander Kondratiev, Georg Wille, Luuk J. G. W. van Wilderen, Jens Bredenbeck
Summary: VIPER 2D-IR is a new method that allows for the observation of molecular dynamics on longer timescales, overcoming the limitations of conventional 2D-IR spectroscopy.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Akihisa Miyagawa, Kenta Hagiya, Shigenori Nagatomo, Kiyoharu Nakatani
Summary: This study investigates the adsorption behavior of proteins on polystyrene microparticles and reveals that the behavior varies according to the method of detection. The formation of a hard corona and a soft corona is also observed, with the extent depending on the pH of the solution.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2023)
Article
Biology
Edward Krzyzak, Aleksandra Kotynia, Dominika Szkatula, Aleksandra Marciniak
Summary: Phthalimide derivatives, known for their antibacterial, antifungal, and anti-inflammatory properties, were investigated in this study. Four non-toxic derivatives with proven cyclooxygenase inhibitory activity were analyzed for their interaction with plasma proteins using molecular docking and spectroscopic methods. The results revealed binding of all tested compounds to plasma proteins, with the strongest interaction observed with albumin. Changes in protein secondary structure were significant only for gamma globulins.
Article
Chemistry, Physical
Grzegorz Kowzan, Thomas K. Allison
Summary: Recent advancements in infrared frequency combs have made it easier to record coherent two-dimensional infrared spectra of gas-phase molecules with rotational resolution. By deriving new polarization conditions specific to freely rotating molecules, certain parts of the 2DIR spectra can be suppressed, resulting in clearer and more comprehensible spectra. This method can be applied to study complex gas mixtures of polyatomic molecules.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Environmental
Tong Liu, Yutian Hu, Nan Chen, Qiaochong He, Chuanping Feng
Summary: This study investigated the performance of pyrite autotrophic denitrification (PAD) in the presence of EDTA and uncovered the mechanism of anaerobic pyrite oxidation and microbial mineral transformation. The electrochemical threshold for converting pyrite into bioavailable forms in PAD conditions was found to be around 200 mV, and the presence of Fe3+-EDTA complexes accelerated pyrite oxidation. Higher abundances of sulfur- and nitrogen-cycling genera were observed in cultures containing EDTA, indicating increased functional diversity and redundancy in the microbial community. These findings contribute to a better understanding of pyrite oxidation under anaerobic neutral conditions and suggest practical applications for PAD.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Barnaby G. Ellis, James Ingham, Conor A. Whitley, Safaa Al Jedani, Philip J. Gunning, Peter Gardner, Richard J. Shaw, Steve D. Barrett, Asterios Triantafyllou, Janet M. Risk, Caroline I. Smith, Peter Weightman
Summary: A machine learning algorithm (MLA) has been used to predict the prognosis of oral potentially malignant lesions and distinguish between lymph node tissue and metastatic oral squamous cell carcinoma (OSCC). By analyzing Fourier transform infrared absorbances ratios, the MLA can identify key wavenumbers associated with molecular biomarkers. In a more complex setting of primary OSCC tumors, the MLA successfully identified seven different tissue types with sensitivities ranging from 82% to 96% and specificities ranging from 90% to 99%. The study's findings, although based on a small sample size, lay the foundation for further and larger investigations.
Article
Biochemistry & Molecular Biology
Chaiho Lim, Kwanghee Park, Yeongseok Chae, Kyungwon Kwak, Minhaeng Cho
Summary: This study overcomes the limitation of the spectral range in femtosecond time-resolved infrared spectroscopy by using a compact continuum mid-IR source. By building an IR spectrometer and correcting the distortion of the measured IR spectrum using bandpass filters, the researchers obtained an IR absorption spectrum consistent with a commercial FT-IR spectrometer. This work is of great practical value for future infrared spectroscopy experiments.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
S. J. Sreeja, J. Satya, K. Tamilarutselvi, R. Rajajeyasekar, A. Tamilselvi, P. Nandhakumari, Kuttalampillai Sarojini
Summary: The present investigation focused on the extraction, characterization, and evaluation of the bioactive potential of gelatin derived from fish scales. Gelatin biopolymers were extracted from Labeo rohita scales using chemical methods. The extracted gelatin exhibited desirable chemical compositions, gel properties, amino acid profiles, and antioxidant activity. The findings suggest that gelatin from fish scales has the potential to be used as a functional food and biomaterial for disease management.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
A. E. Sitnitsky
Summary: This study focuses on the inversion spectrum of PH3 molecule using the Schrodinger equation with position dependent mass, showing that the SE is solvable and providing predictions for energy splitting values. Analysis of experimental data and reliable values from previous studies help validate the findings and provide new insights into the behavior of the molecule.
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chunjing Shi, Qi Dang, Wei Zhang, Jiwei Cui, Jian Liu, Ming Hu
Summary: The removal of water from a mixture of water and inorganic solids results in a change in mechanical properties. However, a unique X state, formed by drying up a dough composed of Ni(H2O)(2)[(Ni(CN)(4)]center dot H2O nanosheets and water, shows characteristics different from pure liquids and brittle solids. The X-state mixture exhibits a deformation curve with three linear parts and its deformation is recoverable.
Article
Chemistry, Physical
Kai C. Gronborg, Sydney M. Giles, Sean Garrett-Roe
Summary: Angular momentum transfer and wavepacket dynamics of CO2(g) were measured on the picosecond time scale using polarization-resolved two-dimensional infrared (2D-IR) spectroscopy. Multiple rotational levels were observed simultaneously at room temperature, and the structure and spectral diffusion of the rotationally resolved 2D-IR spectrum were explained using nonlinear response function theory.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Medicine, Research & Experimental
Mariana Vignoni, Niluksha Walalawela, Sergio M. Bonesi, Alexander Greer, Andres H. Thomas
MOLECULAR PHARMACEUTICS
(2018)
Article
Chemistry, Organic
Niluksha Walalawela, Alexander Greer
JOURNAL OF PHYSICAL ORGANIC CHEMISTRY
(2018)
Article
Biochemistry & Molecular Biology
Goutam Ghosh, Sarah J. Belh, Callistus Chiemezie, Niluksha Walalawela, Ashwini A. Ghogare, Mariana Vignoni, Andres H. Thomas, Sherri A. McFarland, Edyta M. Greer, Alexander Greer
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2019)
Article
Engineering, Environmental
Nadeeshani Nanayakkara, Asanga Koralage, Charuka Meegoda, Supun Kariyawasam
ENVIRONMENTAL ENGINEERING RESEARCH
(2019)
Review
Environmental Sciences
M. A. C. K. Hansima, Madhubhashini Makehelwala, K. B. S. N. Jinadasa, Yuansong Wei, K. G. N. Nanayakkara, Ajith C. Herath, Rohan Weerasooriya
Summary: Electrodialysis self-reversal (EDR) technology is important for water treatment in domestic and industrial uses, but the impact of natural organic matter and metal ions on ion exchange membrane fouling is not fully understood. Current research focuses on identifying IEM fouling routes, discussing various fouling mechanisms, and evaluating the effectiveness of self-cleaning mechanisms.
Article
Environmental Sciences
L. M. L. K. B. Lindamulla, V Jegatheesan, K. B. S. N. Jinadasa, K. G. N. Nanayakkara, M. Z. Othman
Summary: Membrane bioreactor technology integrates biological wastewater treatment and physical separation by membrane filtration. Mathematical models for membrane bioreactors have not adequately considered the impact of soluble microbial products on membrane fouling, but this study has integrated biological and physical models to address this issue. The developed integrated model considers the influence of soluble microbial products, extracellular polymeric substances, sludge removal, and membrane cleaning, enabling prediction of system performance and membrane fouling under various operating conditions.
Article
Chemistry, Multidisciplinary
Belaid Malek, Wenchao Lu, Prabhu Prasad Mohapatra, Niluksha Walalawela, Shakeela Jabeen, Jianbo Liu, Alexander Greer
Summary: A mechanistic study on the reactions between tunable alkene surfactants and singlet oxygen is reported. The phase-dependent ene tunability of singlet oxygen is suggested to be correlated with the oxygen humidity.
Article
Environmental Sciences
W. S. M. S. K. Wijerathna, L. M. L. K. B. Lindamulla, K. G. N. Nanayakkara, R. M. L. D. Rathnayake, V. Jegatheesan, K. B. S. N. Jinadasa
Summary: As matured landfill leachate contains complex contaminants, a single conventional treatment unit is insufficient to meet discharge standards. To address this, an Anoxic-Oxic Membrane Bioreactor coupled with a tertiary adsorption unit composed of crosslinked-protonated chitosan was tested. The results showed promising removal of color in the leachate.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
S. P. S. Meegahakumbura, Nadeeshani Nanayakkara
Summary: Groundwater has become the primary source of potable water in the Northern province of Sri Lanka due to extensive development projects. This study assessed water quality for drinking purposes using the Water Quality Index (WQI), Hierarchical Cluster Analysis (HCA), and Principal Component Analysis (PCA). The results showed that more than 50% of samples had higher levels of total dissolved solids (TDS), hardness, and alkalinity than the Sri Lankan drinking water standards (SLS 614:2013).
Article
Environmental Sciences
Pamodithya Wijeyawardana, Nadeeshani Nanayakkara, David Law, Chamila Gunasekara, Anurudda Karunarathna, Biplob Kumar Pramanik
Summary: Using biochar as a partial replacement for Portland cement shows promise for mitigating environmental impacts. This study explores the effects of biochar type, percentage addition, and particle size on the removal of Cu, Pb, and Zn, as well as compressive strength in cementitious materials. The results indicate that biochar does not negatively impact heavy metal removal and can be used as a cement replacement, although the high pH needs to be neutralized before safe discharge.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Rajika C. Karangoda, K. G. Nadeeshani Nanayakkara
Summary: This research analyzes the spatial distribution of groundwater hardness, pH, and electrical conductivity in the Ratnapura district and investigates the underlying causes of excessive hardness. The results reveal significant differences between different zones and alarming parameter values that exceed drinking water standards. Additionally, climate and geological conditions are found to play a vital role in determining groundwater constituents.
Article
Engineering, Environmental
J. U. Halpegama, K. Y. Heenkenda, Zhiguo Wu, K. G. N. Nanayakkara, R. M. G. Rajapakse, A. Bandara, Ajith C. Herath, Xing Chen, Rohan Weerasooriya
Summary: Water treatment based on electrocoagulation is attractive due to in-situ production of chemicals and colloids, but optimization of operation parameters is necessary. Response surface method was used to optimize EC cell parameters, achieving optimal removal efficiencies for hardness and fluoride. Different chemical species in the solution matrix significantly affect the hardness and fluoride removal efficiencies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Proceedings Paper
Construction & Building Technology
L. M. S. D. Pitawala, H. M. P. Wijeyawardana, K. G. N. Nanayakkara
4TH INTERNATIONAL CONFERENCE ON CONSTRUCTION AND BUILDING ENGINEERING & 12TH REGIONAL CONFERENCE IN CIVIL ENGINEERING (ICONBUILD & RCCE 2019)
(2020)
Article
Engineering, Chemical
Nadeeshani Nanayakkara, Chandima Weerakkody, Parakrama Karunarathne
DESALINATION AND WATER TREATMENT
(2018)
Article
Engineering, Environmental
Nadeeshani Nanayakkara, Ishara Gayathree Arambepola, Mahesh Aluthwatte, Chandheera Rajasinghe, Gemunu Herath
GROUNDWATER FOR SUSTAINABLE DEVELOPMENT
(2020)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
