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| 1 | 利用探针分子红外光谱识别和表征铂族金属基单原子催化剂(英文)显示文摘单原子催化是提高贵金属利用率的有效手段,而表征单原子催化剂是理解单原子催化的基础.探针分子红外光谱可用于识别和定量催化剂样品中孤立的Pt族金属物种的浓度,从而得到负载的孤立的Pt族金属物种的局部几何形状、稳定性、活性及其分散性.本文讨论了该技术用于识别和表征含负载型孤立的Pt族金属原子催化剂的效能、应用、以及未来的发展方向. | Chithra Asokan Leo DeRita Phillip Christopher | 2017 | Chinese Journal of Catalysis2017，38，9： | 6 |
| 2 | Larvicidal and repellent activity of medicinal plant extracts from Eastern Ghats of South India against malaria and filariasis vectors显示文摘Objective:To evaluate the larvicidal and repellent activities of ethyl acetate and methanol extracts of Acacia concinna(A.concinna),Cassia siamea(C.siamea).Conundrum sativum(C. sativum),Cuminum cyminum(C.cyminum),Lantana camma(L.camara),Nelumbo nucifera (N.nucifera) Phyllanlhus amarus(P.amarus).Piper nigrum(P.nigrum) and Trachyspermum ammi(T.ammi) against Anopheles stephensi(An.stephensi) and Culex quinquefasciatus(Cx. quinquefasciatus).Methods:The larvicidal activity of medicinal plant extracts were tested against earl) fourth-instar larvae of malaria and filariasis vectors.The mortality was observed 24 h and 48 h after treatment,data were subjected to probit analysis to determine the lethal concentrations(LC50 and LC90) to kill 50 and 90 per cent of the treated larvae of the tested species. The repellent efficacy was determined against two mosquito species at five concentrations(31.25. 62.50.125.00.250.00,and 500.00 ppm) under the laboratory conditions.Results:All plant extracts showed moderate effects after 24 h and 48 h of exposure;however,the highest activity was observed after 24 h in the leaf methanol extract ol N.nucifera.seed ethyl acetate and methanol extract of P.nigrum against the larvae of An.Stephensi(LC50 = 34.76.24.54 and 30.20 ppm) and against Cx.quinquefasciatus(LC50= 37.49.43.94 and 57.39 ppm),respectively.The toxic effect of leaf methanol extract of C.siamea,seed methanol extract of C.cyminum,leaf ethyl acetate extract of N.nucifera.leaf ethyl acetate and methanol extract of P.amarus and seed methanol extract of T.ammi were showed 100%mortality against An.stephensi and Cx.quinquefasciatus alter 48 h exposer.The maximum repellent activity was observed at 500 ppm in methanol extracts of N. nucifera.ethyl acetate and methanol extract of P.nigrum and methanol extract of T.ammi and the mean complete protection time ranged from 30 to 150 min with the different extracts tested. Conclusions:These results suggest that the leaf and seed extracts of C.siamea.N.nucifera.P. amarus.P.nigrum and T.ammi have the potential to be used as an ideal ecofriendly approach for the control of the An.stephensi and Cx.quinquefasciatus. | Chinnaperumal Kamaraj Abdul Abdul Rahuman Asokan Bagavan Gandhi Elango Abdul Abduz Zahir Thirunavukkarasu Santhoshkumar | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，9： | 5 |
| 3 | Acaricidal activity of synthesized titanium dioxide nanoparticles using Calotropis gigantea against Rhipicephalus microplus and Haemaphysalis bispinosa显示文摘Objective:To assess the acaricidal activity of titanium dioxide nanoparticles(TiO_2 NPs)synthesized from flower aqueous extract of Calotropis gigantea(C.gigantea)against the larvae of Rhipicephalus(Boophilus)microplus[R.(B.)microplus]and the adult of Haemaphrysalis bispinosa(H.bispinosa).Methods:The lyophilized C.gigantea flower aqueous extract of 50 mg was added with 100 mL of TiO(OH_2)(10 mM)and magnetically stirred for 6 h.Synthesized TiO_2 NPs were characterized by X-ray diffraction(XRD).Fourier transform infrared spectroscopy(FTIR),Scanning electron microscopy(SEM),and Energy dispersive X-ray spectroscopy(EDX).The synthesised TiO_2 NPs were tested against the larvae of R(B.)microplus and adult of H.bispinosa were exposed to filter paper impregnated method.Results:XRD confirmed the crystalline nature of the nanoparticles with the mean size of 10.52 nm.The functional groups for synthesized TiO_2NPs were 1405.19,and 1053.45 cm^(-1)for-NH_2 bending,primary amines and amides and 1053.84and 1078.45 cm^(-1)for C-O.SEM micrographs of the synthesized TiO_2 NPs showed the aggregated and spherical in shape.The maximum efficacy was observed in the aqueous flower extract of C.gigantea and synthesized TiO_2 NPs against R.(B.)microplus(LC_(50)=24.63 and 5.43 mg/L and r^2=0.960 and 0.988)and against H.bispinosa(LC_(50)=35.22 and 9.15 mg/L and r^2=0.969 and 0.969).respectively.Conclusions:The synthesized TiO_2 NPs were highly stable and had significant acaricidal activity against the larvae of R.(B.)microplus and adult of H.bispinosa.This study provides the first report of synthesized TiO_2 NPs and possessed excellent anti-parasitic activity. | Sampath Marimuthu Abdul Abdul Rahuman Chidambaram Jayaseelan Arivarasan Vishnu Kirthi Thirunavukkarasu Santhoshkumar Kanayairam Velayutham Asokan Bagavan Chinnaperumal Kamaraj Gandhi Elango Moorthy Iyappan Chinnadurai Siva Loganathan Karthik Kokati Venkata Bhaskara Rao | 2013 | Asian Pacific Journal of Tropical Medicine2013，6，9： | 2 |
| 4 | Antiplasmodial potential of medicinal plant extracts from Malaiyur and Javadhu hills of South India显示文摘 | Chinnaperumal Kamaraj Naveen Kumar Kaushik Dinesh Mohanakrishnan Gandhi Elango Asokan Bagavan Abdul Abduz Zahir Abdul Abdul Rahuman Dinkar Sahal | 2012 | Parasitology Research2012，，2： | 2 |
| 5 | Stabilization of the Anatase Phase of Ti_(1-x)Sn_(x)O_(2) (x < 0.5) Nanofibers显示文摘We experimentally investigate the stabilization of the anatase phase of Ti_(1-x)Sn_(x)O_(2)(x<0.5)nanofibers when synthesized by an electrospinning method.The as-spun nanofibers became nano-grained,polycrystalline nanofibers after calcination and the diameters of the nanofibers depend on Sn content.Stabilization of the anatase phase in Ti-rich compositions and incorporation of Sn ions were confirmed by X-ray diffraction,Raman,X-ray absorption near-edge structure,and photoluminescence(PL)spectroscopies.Results from the PL study also demonstrated the tunable nature of the optical properties,with the emission maximum shifting towards higher wavelength with increasing Sn concentration. | Kandasami Asokan Jae Young Park Sunwoo Choi Changhwan Chang Sang Sub Kim | 2010 | Nano Research2010，3，4： | 2 |
| 6 | Key agreement protocol in Ad Hoc networks 显示文摘 | Asokan N Ginzboorg P | 2006 | Computer Communications2006，23，7： | 1 |
| 7 | Explosions of carbon black and propane hybrid mixtures显示文摘 | PAWEL Kosinski ROY Nyheim VIJAYSHANKAR Asokan | 2013 | Journal of Loss Prevention in the Process Industries2013，26，1： | 1 |
| 8 | α-Oxo ketene-S,S-,N,S- and N, N-acetals:Versatile intermediates in organic synthesis显示文摘 | JUNJAPPA H Ila H Asokan C V | 1990 | Tetrahedron1990，46，： | 1 |
| 9 | Jarosite characteristics and its utilization potentials显示文摘 | ASOKAN P MOHINI S SHYAM A | 2006 | Science of the Total Environment2006，359，2： | 1 |
| 10 | Solving Job Shop Scheduling Problems Using Artificial Immune Sys-tem显示文摘 | Chandrasekaran M Asokan P Kumanan S | 2006 | The International Journal of Advanced Manufactur- ing Technology2006，31，56： | 1 |
| 11 | Key agreement in Ad hoc networks 显示文摘 | N Asokan Philip Ginzboorg | 2000 | Computer Communications2000，23，17： | 1 |
| 12 | Efficient synthesis of deoxybenzoins from chalcones显示文摘 | Mathew P Mathew D Asokan C V | 2007 | Syn Commun2007，37，： | 1 |
| 13 | Optimistic fair exchange of digital signatures显示文摘 | N Asokan V Shoup M Waidner | 2000 | IEEE Journal on Selected Areas in Communications2000，18，4： | 1 |
| 14 | Electrochemical membrane reactor for the reduction of carbondioxide to formate显示文摘 | K. Subramanian K. Asokan D. Jeevarathinam M. Chandrasekaran | 2007 | Journal of Applied Electrochemistry2007，，2： | 1 |
| 15 | A multi-objec- tive genetic algorithm (GA) approach for optimization of surface grinding operations 显示文摘 | Saravanan R Asokan P Sachidanandam M | 2002 | International Journal of Machine Tools and Manufacture2002，42，12： | 1 |
| 16 | Key agreement in Ad hoc networks显示文摘 | ASOKAN N GINZBOORG P | 2000 | Computer Communications2000，23，17： | 1 |
| 17 | Scheduling optimisation of flexible manufacturing systems using particle swarm optimisation algorithm显示文摘 | Jerald J Asokan P Prabaharan G Saravanan R | 2004 | Advanced Manufacturing Technology2004，3，： | 1 |
| 18 | Optimistic fair exchange of digital signatures显示文摘 | Asokan N Shoup V Waidner M | 2000 | IEEE Journal on Selected Areas in Communications2000，18，4： | 1 |
| 19 | Characterization of spinnel particlesin zinc oxide varistors 显示文摘 | Asokan T Freer R | 1990 | J Mater Sci1990，25，： | 1 |
| 20 | Optimization of Machining Parameters for Milling Operations Using Non-conventional Methods显示文摘 | N. Baskar P. Asokan G. Prabhaharan R. Saravanan | 2005 | The International Journal of Advanced Manufacturing Technology (-)2005，，11： | 1 |
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