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1. Sugar-benzohydrazide based phase selective gelators for marine oil spill recovery and removal of dye from polluted water

Author:
Soundarajan, Kamalakannan,   et al.   ; Mohan Das, Thangamuthu;     Show all 2 Author
Source:
Carbohydrate research 2019 v.481 pp. 60-66
ISSN:
0008-6215
Subject:
Fourier transform infrared spectroscopy; benzene; dyes; gelation; gels; hydrogen bonding; moieties; nuclear magnetic resonance spectroscopy; oil spills; oils; scanning electron microscopy; solvents; spectral analysis; sugars; ultraviolet-visible spectroscopy; van der Waals forces; water pollution
Abstract:
... The synthesis of 3,4,5-tri-O-benzohydrazide based N-glycosylamines were characterized using NMR (1H and 13C) and mass spectral analysis. Gelation properties of the synthesized molecules in different solvents and oils were studied and gelation was observed with minimum Critical Gelator Concentration (CGC) of 0.8% (w/v) in benzene. The free hydroxyl group of the sugar moiety, benzohydrazide and thre ...
DOI:
10.1016/j.carres.2019.06.011

2. Visible light-driven simultaneous H₂ production by water splitting coupled with selective oxidation of HMF to DFF catalyzed by porous carbon nitride

Author:
Kailasam, Kamalakannan,   et al.   ; Battula, Venugopala Rao; Jaryal, Arpna;     Show all 3 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.10 pp. 5643-5649
ISSN:
2050-7496
Subject:
biomass; carbon nitride; electrons; furfural; hydrogen; hydrogen production; hydroxymethylfurfural; light; oxidation; photocatalysis; solar radiation
Abstract:
... In this study, we have demonstrated photocatalytic H₂ evolution by water splitting coupled with biomass derived 5-(hydroxymethyl) furfural (HMF) oxidation to a more valued platform chemical, 2,5-diformylfuran (DFF), under visible light using porous carbon nitride (SGCN) for the first time. Simultaneously, a H₂ production rate of 12 μmol h⁻¹ m⁻² was obtained with a DFF yield of 13.8% with >99% sele ...
DOI:
10.1039/c8ta10926e

3. Metal-free visible light photocatalytic carbon nitride quantum dots as efficient antibacterial agents: An insight study

Author:
Kailasam, Kamalakannan,   et al.   ; Yadav, Pranjali; Nishanthi, S.T.; Purohit, Bhagyesh; Shanavas, Asifkhan;     Show all 5 Authors
Source:
Carbon 2019 v.152 pp. 587-597
ISSN:
0008-6223
Subject:
antibiotics; carbon nitride; dialysis; fibroblasts; graphene; hydroxyl radicals; irradiation; nanosilver; particle size; photocatalysis; photoluminescence; polymerization; porous media; quantum dots; scanning electron microscopy; silver; surface area; toxicity; transmission electron microscopy
Abstract:
... Graphitic carbon nitride (g-CN, commonly called as g-C3N4) quantum dots exhibiting excellent photoluminescence behaviour is explored as metal-free visible light photocatalytic antibacterial agents. The g-CNQDs were synthesized by two-step thermal polymerization and selective dialysis approach yielding particle size in the range of 2–7 nm with a large specific surface area of 264 m2/g. The fluoresc ...
DOI:
10.1016/j.carbon.2019.06.045

4. Organic motif's functionalization via covalent linkage in carbon nitride: An exemplification in photocatalysis

Author:
Kailasam, Kamalakannan,   et al.   ; Chauhan, Deepak Kumar; Jain, Sanjhal; Battula, Venugopala Rao;     Show all 4 Authors
Source:
Carbon 2019 v.152 pp. 40-58
ISSN:
0008-6223
Subject:
absorption; carbon; carbon nitride; chemical bonding; moieties; optical properties; photocatalysis; polymers; semiconductors; synthesis
Abstract:
... Carbon nitride (commonly termed as g-C3N4) is a promising π-conjugated polymeric organic metal-free semiconductor. An inexpensive chemical synthesis procedure, phenomenal chemical stability and tuneable electronic structure of g-C3N4 has provoked its tremendous interest in photocatalysis. However, intrinsic limitations of pristine g-C3N4, such as low specific surface area, low visible light absorp ...
DOI:
10.1016/j.carbon.2019.05.079

5. Effect of hydrogen addition on performance, emission, and combustion characteristics of Deccan hemp oil and its methyl ester–fuelled CI engine

Author:
Jayaraman, Kamalakannan,   et al.   ; Babu, Geetha Narayanasamy; Dhandapani, Gopinath; Varuvel, Edwin Geo;     Show all 4 Authors
Source:
Environmental science and pollution research international 2019 v.26 no.9 pp. 8685-8695
ISSN:
0944-1344
Subject:
biodiesel; carbon monoxide; combustion; diesel engines; emissions; hemp; hydrogen; nitrogen oxides; smoke; temperature; vegetable oil; vegetables
Abstract:
... A vegetable oil–fueled diesel engine operation is characterized by low brake thermal efficiency and relatively high smoke emission. Conversion of vegetable oil to biodiesel results in slight improvement in efficiency and smoke emission, but the values are not comparable with diesel. In this work, a single-cylinder diesel engine’s performance is evaluated by inducting hydrogen in small quantities i ...
DOI:
10.1007/s11356-019-04286-z

6. Emergence of s-heptazines: from trichloro-s-heptazine building blocks to functional materials

Author:
Kailasam, Kamalakannan,   et al.   ; Kumar, Sunil; Sharma, Neha;     Show all 3 Authors
Source:
Journal of materials chemistry A 2018 v.6 no.44 pp. 21719-21728
ISSN:
2050-7496
Subject:
carbon nitride; chemistry; energy conversion; photocatalysts; polymers; porous media
Abstract:
... The barrier in any particular application is the material design and development of effective materials based on it. Currently, the major focus is on the development of material classes for energy conversion, storage and environmental applications. Thus material design and especially porous materials have created interest in researchers to search for a new class of materials. Polymeric carbon nitr ...
DOI:
10.1039/c8ta05430d

7. Alkyl Methyl Imidazolium-Based Ionic Liquids at the Au(111) Surface: Anions and Alkyl Chain Cations Induced Interfacial Effects

Author:
Kamalakannan, Shanmugasundaram,   et al.   ; Prakash, Muthuramalingam; Al-Mogren, Muneerah Mogren; Chambaud, Gilberte; Hochlaf, Majdi;     Show all 5 Authors
Source:
Journal of physical chemistry 2019 v.123 no.24 pp. 15087-15098
ISSN:
1932-7455
Subject:
adsorption; anions; cations; chlorides; density functional theory; gold; hydrophilicity; hydrophobicity; ionic liquids; moieties; van der Waals forces
Abstract:
... The structure, stability, and adsorption mechanism on the Au(111) surface of hydrophilic/hydrophobic ionic liquids (ILs) with various lengths of the alkyl chain group in the cation were investigated using first-principles approaches including electrostatic potential (ESP), electron density analysis, and dispersion-corrected density functional theory (DFT-D3) methods. A suitable selection of ILs is ...
DOI:
10.1021/acs.jpcc.9b03242

8. Pulp wood traits of Eucalyptus camaldulensis clones across three contrasting locations in southern India

Author:
Kamalakannan, Rathinam,   et al.   ; Ramadevi, Payyavula; Hegde, Deepak V.; Varghese, Mohan;     Show all 4 Authors
Source:
Journal 2018 v.15 no.2 pp. 158-161
ISSN:
0972-172X
Subject:
Eucalyptus camaldulensis; Ongole; clones; lignin; pulp and paper industry; pulpwood; wood density; India
Abstract:
... Pulp wood traits of six Eucalyptus camaldulensis clones were evaluated at 3 years across three contrasting locations (Ongole-A.P., Bhadrachalam-Telangana and Mettupalayam-Tamil Nadu) in southern India. The clones grown at wetter Bhadrachalam and coastal Ongole sites had 2–3 times better growth and 5–6% higher pulp yield than those grown at a dry site in Mettupalayam. Alkali consumption and extract ...
DOI:
10.1007/s13196-018-0221-6

9. Petroleum hydrocarbon concentrations in marine sediments along Nagapattinam – Pondicherry coastal waters, Southeast coast of India

Author:
Kamalakannan, K.,   et al.   ; Balakrishnan, S.; Sampathkumar, P.;     Show all 3 Authors
Source:
Marine pollution bulletin 2017 v.117 no.1-2 pp. 492-495
ISSN:
0025-326X
Subject:
cluster analysis; coastal water; coasts; ecosystems; hydrocarbons; marine sediments; mining; monitoring; petroleum; rapid methods; tourism; viability; India
Abstract:
... In this present study, petroleum hydrocarbons were statistically analyzed in three different coastal sediment cores viz., (N1, P1 and P2) from the Southeast coast of Tamil Nadu, India to examine the viability of PHCs. The significant positive relationship between mud (silt+clay+sand) and PHC unveiled that high specific surface of area of mud content raise the level of PHCs. Cluster analysis was us ...
DOI:
10.1016/j.marpolbul.2016.12.057

10. Heptazine based organic framework as a chemiresistive sensor for ammonia detection at room temperature

Author:
Kailasam, Kamalakannan,   et al.   ; Sharma, Nidhi; Sharma, Neha; Srinivasan, Parthasarathy; Kumar, Sunil; Balaguru Rayappan, John Bosco;     Show all 6 Authors
Source:
Journal of materials chemistry 2018 v.6 no.38 pp. 18389-18395
ISSN:
2050-7496
Subject:
active sites; ambient temperature; ammonia; chemical species; disease diagnosis; environmental monitoring; polymers; porous media; relative humidity; volatile organic compounds
Abstract:
... The demand for high performance gas sensors in IoT applications is of great interest. Gas sensors with high sensitivity and selectivity at room temperature have been expected for practical applications. However, the limitations of conventional metal oxide based sensing materials and unstable outputs caused by ambient environments significantly restrict their practical applications. Herein, we have ...
DOI:
10.1039/c8ta06937a

11. DNA polymorphisms and genetic relationship among populations of Acacia leucophloea using RAPD markers

Author:
Kamalakannan, R.,   et al.   ; Mutharaian, V.N.; Mayavel, A.; Makesh, S.; Kwon, S.H.; Kang, K.-S.;     Show all 6 Authors
Source:
Journal of forestry research 2018 v.29 no.4 pp. 1013-1020
ISSN:
1007-662X
Subject:
Acacia leucophloea; DNA; breeding programs; cluster analysis; genetic relationships; genetic similarity; provenance; random amplified polymorphic DNA technique; species identification; tree breeding; India
Abstract:
... RAPD (randomly amplified polymorphic DNA) markers were employed to characterize polymorphisms among 5 provenances of Acacia leucophloea and to detect genetic relatedness of the species with 6 other acacias (A. holosericea, A. auriculiformis, A. mangium, A. dealbata, A. ferruginea, and A. nilotica) widely grown in India. Of 194 markers scored for the provenances, 29.38% exhibited polymorphism. Also ...
DOI:
10.1007/s11676-017-0574-5

12. Design and synthesis of sugar-benzohydrazides: low molecular weight organogelators

Author:
Soundarajan, Kamalakannan,   et al.   ; Periyasamy, Rathinam; Mohan Das, Thangamuthu;     Show all 3 Authors
Source:
RSC advances 2016 v.6 no.85 pp. 81838-81846
ISSN:
2046-2069
Subject:
DCB (herbicide); X-ray diffraction; benzene; carbon; chloroform; ethylene dichloride; gelation; gels; hydrogen bonding; molecular weight; nuclear magnetic resonance spectroscopy; scanning electron microscopy; solvents; spectral analysis; stable isotopes; toluene; transmission electron microscopy; van der Waals forces
Abstract:
... A novel class of methyltriglycol benzohydrazide based N-glycosylamines containing long alkyl chain derivatives were synthesized in good yield and characterized using NMR (¹H and ¹³C) spectral analysis. The gelation test shows that these derivatives form gels with a wide range of polar (1,2-dichlorobenzene, chloroform) and non-polar (1,2-dichloroethane, toluene, benzene) solvents even with lower CG ...
DOI:
10.1039/c6ra18715c

13. Outbreak of tomato wilt caused by Ralstonia solanacearum in Tamil Nadu, India and elucidation of its genetic relationship using multilocus sequence typing (MLST)

Author:
Kamalakannan, A.,   et al.   ; Balamurugan, A.; Kumar, A.; Muthamilan, M.; Sakthivel, K.; Vibhuti, M.; Ashajyothi, M.; Sheoran, N.; Shanthi, A.; Arumugam, T.;     Show all 10 Authors
Source:
European journal of plant pathology 2018 v.151 no.3 pp. 831-839
ISSN:
0929-1873
Subject:
Ralstonia solanacearum; Solanum lycopersicum; bacteria; bacterial wilt; chlorides; genetic analysis; genetic relationships; leaves; multilocus sequence typing; nucleotide sequences; pathogens; polymerase chain reaction; ribosomal RNA; tetrazolium; tomatoes; wilting; India
Abstract:
... High incidence of wilt disease (35–45%) of tomato (Solanum lycopersicum L.) was recently observed in two different locations of Tamil Nadu state of India. Infected plants showed typical wilt symptoms which include sudden green wilting of foliage followed by drooping of leaves downwards. The characteristic white milky ooze observed on the cut end of infected stem indicated bacterial etiology. Upon ...
DOI:
10.1007/s10658-017-1414-3

14. Options for converting a clone trial of Eucalyptus camaldulensis into a clonal seed orchard considering gain, fertility and effective clone number

Author:
Kamalakannan, R.,   et al.   ; Varghese, M.; Suraj, P. G.; Arutselvan, T.;     Show all 4 Authors
Source:
Journal of forestry research 2016 v.27 no.1 pp. 51-57
ISSN:
1007-662X
Subject:
Eucalyptus camaldulensis; breeding value; clones; fecundity; fruits; population size; retained trees; seed orchards
Abstract:
... We evaluated a clone trial comprised of 20 ramets each of 40 Eucalyptus camaldulensis clones for growth and fertility at 4 years of age. The clones differed significantly in growth with 65–100 % survival in 38 clones while two clones had low survival (40 and 10 %). Fecundity was high and fertility variation low, as indicated by the sibling coefficient value (Ψ = 1.4) with 55 % of clones contributi ...
DOI:
10.1007/s11676-015-0169-y

15. Generation of radical species in CVD grown pristine and N-doped solid carbon spheres using H₂ and Ar as carrier gases

Author:
Ranganathan, Kamalakannan,   et al.   ; Mutuma, Bridget K.; Matsoso, Boitumelo J.; Keartland, Jonathan M.; Wamwangi, Daniel; Coville, Neil J.;     Show all 6 Authors
Source:
RSC advances 2017 v.7 no.34 pp. 21187-21195
ISSN:
2046-2069
Subject:
Raman spectroscopy; acetonitrile; acetylene; carbon; catalysts; catalytic activity; hydrogen; nitrogen; vapors
Abstract:
... Solid carbon spheres (CSs, d ≈ 200 nm) were synthesized (yield, <40%) in a vertically oriented chemical vapor deposition (CVD) reactor using acetylene as a carbon source and Ar or H₂ as the carrier gas. The CSs synthesized in the presence of H₂ exhibited a broader thermal gravimetric derivative curve and a narrower paramagnetic signal than the CSs synthesized in Ar. Post synthesis doping of both t ...
DOI:
10.1039/c7ra03142d

16. Immune modulations and protection by translationally controlled tumor protein (TCTP) in Fenneropenaeus indicus harboring white spot syndrome virus infection

Author:
Kamalakannan, V.,   et al.   ; Rajesh, S.; Narayanan, R.B.;     Show all 3 Authors
Source:
Journal of invertebrate pathology 2014 v.120 pp. 33-39
ISSN:
0022-2011
Subject:
DNA fragmentation; Escherichia coli; Fenneropenaeus indicus; White spot syndrome virus; antioxidant activity; apoptosis; hemocytes; hydrogen peroxide; in vitro studies; intramuscular injection; membrane potential; mitochondria; mitochondrial membrane; monophenol monooxygenase; oral administration; protective effect; shrimp; translation (genetics)
Abstract:
... Fenneropenaeus indicus translationally controlled tumor protein (Fi-TCTP) was cloned and expressed using pET 100a-D-TOPO in prokaryotic expression system and it exhibited putative antioxidant activity as assessed in vitro by enhanced growth of Escherichia coli (E. coli) in presence of hydrogen peroxide. The protective efficacy of recombinant Fi-TCTP (rFi-TCTP) was evaluated in F. indicus by intram ...
DOI:
10.1016/j.jip.2014.05.003

17. Laboratory and field evaluation of Metarhizium anisopliae for the control of Dengue vector, Aedes aegypti (Insecta: Diptera: Culicidae)

Author:
Kamalakannan, Siva,   et al.   ; Murugan, Kadarkarai;     Show all 2 Author
Source:
Toxicological and environmental chemistry 2011 v.93 no.6 pp. 1195-1201
ISSN:
1029-0486
Subject:
Aedes aegypti; Metarhizium anisopliae; biological control; dengue; fungi; insect larvae; lethal concentration 50; mortality; mosquito bites; mosquito control; mycoinsecticides; pathogens; vectorial capacity
Abstract:
... Biological control at the larval stages of development of mosquitoes is one of the techniques that afford a non-expensive, easy-to-use, and environment-friendly method for mosquito control. In this study, investigations were undertaken on microbial product to develop a strategy to control mosquito larval and pupal population in the lab and field. Highest larval mortality was evident in the lab wit ...
DOI:
10.1080/02772248.2011.580577

18. Synthesis of efficient photocatalysts for water oxidation and dye degradation reactions using CoCl₂ eutectics

Author:
Kailasam, Kamalakannan,   et al.   ; Fettkenhauer, Christian; Wang, Xinchen; Antonietti, Markus; Dontsova, Dariya;     Show all 5 Authors
Source:
Journal of materials chemistry A 2015 v.3 no.42 pp. 21227-21232
ISSN:
2050-7496
Subject:
carbon nitride; cobalt; cobalt oxide; condensation reactions; crystal structure; dyes; imides; melting; nanoparticles; oxidation; photocatalysts; polymers; rhodamines; tin; triazines; zinc chloride
Abstract:
... A simple one-step procedure for the preparation of cobalt oxide–carbon nitride composites by carrying out the thermal condensation reaction of carbon nitride precursors in cobalt(ii) chloride-containing salt melts is developed. This method enables us to control the structure of the polymer constituent by the proper selection of the second eutectic component. In this respect, alkali metal chlorides ...
DOI:
10.1039/c5ta06304c

19. An excellent humidity sensor based on In–SnO₂ loaded mesoporous graphitic carbon nitride

Author:
Kailasam, Kamalakannan,   et al.   ; Malik, Ritu; Tomer, Vijay K.; Chaudhary, Vandna; Dahiya, Manjeet S.; Sharma, Anshu; Nehra, S. P.; Duhan, Surender;     Show all 8 Authors
Source:
Journal of materials chemistry A 2017 v.5 no.27 pp. 14134-14143
ISSN:
2050-7496
Subject:
adsorption; ambient temperature; carbon nitride; desorption; graphene; hysteresis; monitoring; nanohybrids; porous media; relative humidity; silica
Abstract:
... A highly sensitive and fast responsive relative humidity (% RH) sensor based on In–SnO₂ loaded cubic mesoporous graphitic carbon nitride (g-C₃N₄) has been demonstrated in this study. The mesoporous In–SnO₂/meso-CN nanohybrid was synthesized through template inversion of mesoporous silica, KIT-6, using a nanocasting process. Due to its 3D replicated cubic structure with ordered mesopores, the nanoh ...
DOI:
10.1039/c7ta02860a

20. Hollow carbon spheres and a hollow carbon sphere/polyvinylpyrrolidone composite as ammonia sensors

Author:
Ranganathan, Kamalakannan,   et al.   ; Mutuma, Bridget K.; Rodrigues, Rafael; Matsoso, Boitumelo; Wamwangi, Daniel; Hümmelgen, Ivo A.; Coville, Neil J.;     Show all 7 Authors
Source:
Journal of materials chemistry A 2017 v.5 no.6 pp. 2539-2549
ISSN:
2050-7496
Subject:
adsorption; ammonia; annealing; carbon; electrodes; nanomaterials; polyvinylpyrrolidone; relative humidity; surface area; surfactants; topology; vapors
Abstract:
... This study reports on the ammonia vapour sensing behaviour of hollow carbon spheres (HCSs), a hollow carbon sphere–polyvinylpyrrolidone (HCS/PVP) composite and annealed hollow carbon spheres (in a humid environment). For device fabrication, a surfactant assisted method was used to homogeneously disperse the hollow carbon spheres onto an interdigitated electrode. Conductance measurements (sensor re ...
DOI:
10.1039/c6ta09424d