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Article: Tidal Volume Challenge Test: Expanding Possibilities

Myatra, S. N. / Prabu, N. / Teboul, J.-L.

Annual update in intensive care and emergency medicine

2022 Volume -, Issue -, Page(s) 161

Language	English
Document type	Article
ZDB-ID	2600427-6
ISSN	2191-5709
Database	Current Contents Medicine

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Article: Effects of Oil Pulling and Chlorhexidine Mouth Rinse on the Force Decay of Orthodontic Elastomeric Chains: A Comparative In Vitro Study.

Sivaraman, Keerthana / Ub, Rajasekaran / Prabu, Neetika / Deepak, Arun / T, Nagaland / Sreedharan, Anusha

Cureus

2024 Volume 16, Issue 2, Page(s) e53456

Abstract: Background and objectives: Oil pulling is a traditional Indian folk remedy for maintaining oral hygiene among orthodontic patients. This study aimed to assess the effects of oil pulling and compare them with those of chlorhexidine (CHX) and distilled ... ...

Abstract	Background and objectives: Oil pulling is a traditional Indian folk remedy for maintaining oral hygiene among orthodontic patients. This study aimed to assess the effects of oil pulling and compare them with those of chlorhexidine (CHX) and distilled water on the force decay of elastomeric chains. Methods: Twenty-one samples were tested in three groups. Each of these groups contained seven samples per group. The samples evaluated contained distilled water, 0.2% CHX, and sesame oil. The samples were dipped in various mouth rinses, and force degradation was measured using a dynamometer (dynamic universal testing machine, Instron 8801, Instron, Norwood, MA) during days 0, 1, 7, 14, 21, and 28. The significance level was considered at 1%. Results: Force degradation was observed more in distilled water, followed by sesame oil, and less in CHX at the end of 28 days. Significant differences in values (p < 0.01) were found among the three groups in all the timelines in the study except on days 14 and 21. Conclusion: Chlorhexidine showed the least amount of force decay, followed by oil pulling and distilled water. However, if oil pulling is practiced daily as a household remedy along with regular oral hygiene practices, it can save time and money and enhance general health.
Language	English
Publishing date	2024-02-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.53456
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: An efficient palm waste derived hierarchical porous carbon for electrocatalytic hydrogen evolution reaction

Prabu, Natarajan / Kesavan, Thangaian / Maduraiveeran, Govindhan / Saravanan, Raaju Sundhar Arul / Sasidharan, Manickam

Carbon. 2019 Nov., v. 152

2019

Abstract: Replacing precious Pt, Ir, and Pd-metal based catalysts with cost-effective alternatives for hydrogen production via electrocatalytic hydrogen evolution reaction (HER) would benefit significantly towards clean green energy technologies. In this ... ...

Abstract	Replacing precious Pt, Ir, and Pd-metal based catalysts with cost-effective alternatives for hydrogen production via electrocatalytic hydrogen evolution reaction (HER) would benefit significantly towards clean green energy technologies. In this perspective, we demonstrate graphene-like hierarchical porous nanosheets derived from an inexpensive dry spathe-pollen waste of palm plant as an efficient HER catalyst by pursuing “energy from waste” strategy. Investigation of chemical composition and microenvironment by X-ray photoelectron spectroscopy (XPS) confirms the presence of pyridinic, pyrrolic, and graphitic nitrogen innate from N-containing organic components. The textural features with N2 sorption measurements suggests complimentary of high surface area (1297 m2 g‒1), pore volume (0.6 mL g−1), and hierarchical micro/mesoporous architecture which could strongly promote the performance in HER catalysis. Tested as a HER catalyst, the as-prepared carbon material furnish a smaller overpotential (η10) of 0.33 V vs. RHE, at 10.0 mA cm−2 along with a small Tafel slope value of 63 mV dec−1 and long-term stability under acidic medium. The hydrogen binding energy of HPNS and undoped carbon were calculated from DFT studies to support the HPNS activity. Such exquisite properties may be attributed to unique combination of high surface area, facile electrolyte percolation within hierarchical bimodal pore system, robust electrode/electrolyte interface, and N-dopant.
Keywords	carbon ; catalysts ; catalytic activity ; chemical composition ; cost effectiveness ; electrodes ; electrolytes ; energy ; hydrogen ; hydrogen production ; iridium ; nanosheets ; nitrogen ; platinum ; porous media ; renewable energy sources ; sorption ; surface area ; texture ; wastes ; X-ray photoelectron spectroscopy
Language	English
Dates of publication	2019-11
Size	p. 188-197.
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0008-6223
DOI	10.1016/j.carbon.2019.06.016
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Design of P-Doped Mesoporous Carbon Nitrides as High-Performance Anode Materials for Li-Ion Battery.

Kesavan, Thangaian / Partheeban, Thamodaran / Vivekanantha, Murugan / Prabu, Natarajan / Kundu, Manab / Selvarajan, Premkumar / Umapathy, Siva / Vinu, Ajayan / Sasidharan, Manickam

ACS applied materials & interfaces

2020 Volume 12, Issue 21, Page(s) 24007–24018

Abstract: Herein, we demonstrate a simple and unique strategy for the preparation of P-doped into the substructure of mesoporous carbon nitride materials (P-MCN-1) with ordered porous structures as a high-energy and high-power Li-ion battery (LIB) anode. The P-MCN- ...

Abstract	Herein, we demonstrate a simple and unique strategy for the preparation of P-doped into the substructure of mesoporous carbon nitride materials (P-MCN-1) with ordered porous structures as a high-energy and high-power Li-ion battery (LIB) anode. The P-MCN-1 as an anode in LIB delivers a high reversible discharge capacity of 963 mAh g
Language	English
Publishing date	2020-05-13
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.0c05123
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Ecophysiological attributes of Mikania micrantha, an exotic invasive weed, at two different elevations in the tropical forest regions of the Western Ghats, South India

Prabu, N. Ramesh / Stalin, N / Swamy, P. Sudhakar

Weed biology and management. 2014 Mar., v. 14, no. 1

2014

Abstract: Mikania micrantha�� H.B.K. is a fast‐growing, perennial vine and one of the world's worst alien invasive weeds. It is a major threat to agro‐ecosystems, plantation crops and agro‐forestry systems. An attempt was made to understand the physiological ... ...

Abstract	Mikania micrantha�� H.B.K. is a fast‐growing, perennial vine and one of the world's worst alien invasive weeds. It is a major threat to agro‐ecosystems, plantation crops and agro‐forestry systems. An attempt was made to understand the physiological adaptation and ecological amplitude of M. micrantha at two different altitudes and seasons in the Western Ghats of south India. The relationships between the net photosynthetic rate (PN) and other physiological parameters, like stomatal conductance (gₛ), transpiration rate, intercellular CO₂ concentration, vapor pressure deficit and water use efficiency, and environmental factors, like photosynthetically active radiation (PAR), leaf temperature and air temperature, were analyzed in order to understand their physiological adaptabilities. The PN exhibited a peak at 10.00 hours and declined gradually at both elevations; however, the populations at the lower elevation had a significantly greater PN than the populations at the higher elevation in November. The PN and gₛ were positively correlated with the PAR. Under significantly different PAR levels, the difference in the average PN was not significant for summer but was significant for winter between the two elevations. It suggested that the photosynthetic ability of M. micrantha is not affected by a difference in altitude (451 m and 912 m), as the differences in the environmental parameters were inconspicuous between the two elevations. These results indicated that this weed possesses great phenotypic plasticity and thrives better at lower elevations.
Keywords	Mikania micrantha ; air temperature ; altitude ; carbon dioxide ; correlation ; crops ; ecophysiology ; invasive species ; leaves ; phenotypic plasticity ; photosynthesis ; photosynthetically active radiation ; stomatal conductance ; summer ; tropical forests ; vapor pressure ; vines ; water use efficiency ; weeds ; winter ; India
Language	English
Dates of publication	2014-03
Size	p. 59-67.
Publishing place	Blackwell Science
Document type	Article
ZDB-ID	2049705-2
ISSN	1445-6664 ; 1444-6162
ISSN (online)	1445-6664
ISSN	1444-6162
DOI	10.1111/wbm.12033
Database	NAL-Catalogue (AGRICOLA)

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Article: Characterization of a hydrogen bonded liquid crystal homologous series: Detailed FTIR studies in various mesophases

Pongali Sathya Prabu, N / Vijayakumar, V.N / Madhu Mohan, M.L.N

Journal of molecular structure. 2011 May 17, v. 994, no. 1-3

2011

Abstract: Novel linear hydrogen bonded liquid crystal homologous series has been synthesized and characterized. Hydrogen bond is formed between hydroxy benzaldehyde and various benzoic acids which are varying from pentyl to dodecyl alkyloxy carbon numbers. ... ...

Abstract	Novel linear hydrogen bonded liquid crystal homologous series has been synthesized and characterized. Hydrogen bond is formed between hydroxy benzaldehyde and various benzoic acids which are varying from pentyl to dodecyl alkyloxy carbon numbers. Synthesized complexes are characterized by FTIR for inferring the formation of hydrogen bonds. Polarizing microscopy and DSC studies reveal various mesophases and their corresponding transition temperatures along with respective enthalpy values. Tilt angle and helix in Smectic C phase have been experimentally elucidated for most of the mesogens. A new technique for the temperature dependent FTIR studies has been proposed. The spectral results obtained by this technique are in good agreement with the conventional method. These FTIR studies bestow information about shifting and occurrence of new peaks in various mesophases thus enriching the knowledge on the chemical molecular environment of the mesogen.
Keywords	Fourier transform infrared spectroscopy ; benzaldehyde ; benzoic acids ; carbon ; enthalpy ; hydrogen ; hydrogen bonding ; microscopy ; new methods ; temperature
Language	English
Dates of publication	2011-0517
Size	p. 387-391.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	194476-9
ISSN	0022-2860 ; 0377-046X
ISSN	0022-2860 ; 0377-046X
DOI	10.1016/j.molstruc.2011.03.056
Database	NAL-Catalogue (AGRICOLA)

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Article: One point fixation of zygomatic tripod fractures in the zygomatic buttress through Keen's intraoral approach: A review of 30 cases.

Dakir, Abu / Muthumani, T / Prabu, N P / Mohan, Rakesh / Maity, Abhishek

Journal of pharmacy & bioallied sciences

2015 Volume 7, Issue Suppl 1, Page(s) S238–41

Abstract: For decades, facial beauty and esthetics have been one of the most important quests of the human race. The lateral prominence and convexity of the zygomatic bone makes it the most important bone for providing the aesthetic facial look and sets up the ... ...

Abstract	For decades, facial beauty and esthetics have been one of the most important quests of the human race. The lateral prominence and convexity of the zygomatic bone makes it the most important bone for providing the aesthetic facial look and sets up the facial width but at the same time this prominence and convexity makes this bone more vulnerable to injury. Zygomatic complex fractures or tripod fractures are the second most common fractures after nasal fractures among facial injuries. Several studies have been undertaken regarding the reduction and fixation of zygomatic fractures with mini plates and screws. In 2002 Fujioka et al in vivo studies successfully proved that one point fixation at the zygomaticomaxillary complex gives three point alignment and sufficient rigidity when the fractures are not comminuted. In this article, 30 cases have been reviewed with one point fixation of zygomatic complex tripod fractures at the zygomatic buttress through Keen's intraoral approach along with advantages and disadvantages.
Language	English
Publishing date	2015-05-26
Publishing country	India
Document type	Journal Article ; Review
ZDB-ID	2573569-X
ISSN	0975-7406 ; 0976-4879
ISSN (online)	0975-7406
ISSN	0976-4879
DOI	10.4103/0975-7406.155934
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Complications and Benefits of Intrahospital Transport of Adult Intensive Care Unit Patients.

Harish, M M / Janarthanan, S / Siddiqui, S S / Chaudhary, Harish K / Prabu, N R / Divatia, Jigeeshu Vashistha / Kulkarni, Atul Prabhakar

Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine

2017 Volume 21, Issue 2, Page(s) 112

Language	English
Publishing date	2017-01-03
Publishing country	India
Document type	Journal Article
ZDB-ID	2121263-6
ISSN	1998-359X ; 0972-5229
ISSN (online)	1998-359X
ISSN	0972-5229
DOI	10.4103/ijccm.IJCCM_26_17
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Sealing ability of lateral condensation, thermoplasticized gutta-percha and flowable gutta-percha obturation techniques: A comparative in vitro study.

Kumar, Nallkkapalayam Somasundaram Mohan / Prabu, P S / Prabu, Neethika / Rathinasamy, Shobana

publication RETRACTED

Journal of pharmacy & bioallied sciences

2012 Volume 4, Issue Suppl 2, Page(s) S131–5

Abstract: Aim: To evaluate and compare the sealing ability between the clod lateral condensation, thermoplasticized gutta-percha, and flowable gutta-percha obturation technique, under a stereomicroscope at ×40 magnification.: Materials and methods: Sixty ... ...

Abstract	Aim: To evaluate and compare the sealing ability between the clod lateral condensation, thermoplasticized gutta-percha, and flowable gutta-percha obturation technique, under a stereomicroscope at ×40 magnification. Materials and methods: Sixty single rooted teeth were selected and canals were shaped with K3 NiTi files. Irrigation was performed with 5.25% NaOCl and 17% ethylenediaminetetraacetic acid (EDTA). The teeth were then separated into three groups depending on the type of obturation technique: Group A, obturated using the lateral condensation technique and AH Plus sealer; Group B, obturated with thermoplasticized gutta-percha tech (Obtura III Max) and AH Plus sealer; and Group C, obturated using flowable gutta-percha technique (GuttaFlow). After storing the teeth in 100% humidity for 7 days at 37°C, the roots of the teeth were sectioned at five levels. The sections were then observed under a stereomicroscope at ×40 magnification and the images were analyzed for area of voids (AV) and frequency of voids. The data were statistically analyzed using the SPSS version 17 software. The 95% confidence intervals (CI) were calculated. One-way analysis of variance with post hoc test and non-parametric Mann-Whitney U test were carried out to compare the means. Results: The lowest mean of AV was recorded in the thermoplasticized gutta-percha (Obtura III Max) group [1.0% (95% CI=0.5-1.5)]. This was statistically and significantly different from flowable gutta-percha (GuttaFlow) group [3.0% (95% CI=2.1-3.9)]. There was no significant difference between the thermoplasticized gutta-percha group and lateral condensation group [1.6% (95% CI=1.0-2.2)] with regard to the AV, but there was a statistically significant difference between the lateral condensation and flowable gutta-percha groups. The flowable gutta-percha group showed the maximum number of voids [56% (95% CI=48-64)], which was significantly higher than those in the lateral condensation [26% (95% CI=19-34)] and thermoplasticized gutta-percha [15% (95% CI=10-21)] groups. Conclusion: The thermoplasticized gutta-percha technique (Obtura III Max) had better adaptability to the canal walls when compared to the flowable gutta-percha (GuttaFlow) obturation and lateral condensation techniques.
Language	English
Publishing date	2012-08-23
Publishing country	India
Document type	Journal Article ; Retracted Publication
ZDB-ID	2573569-X
ISSN	0975-7406 ; 0975-7406
ISSN (online)	0975-7406
ISSN	0975-7406
DOI	10.4103/0975-7406.100211
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Au–Pt graded nano-alloy formation and its manifestation in small organics oxidation reaction

Ilayaraja, N / Jeyakumar, D / Lakshminarasimhan, N / Murugan, P / Prabu, N

Journal of materials chemistry A. 2013 Feb. 26, v. 1, no. 12

2013

Abstract: A graded nano-alloy of Au100−xPtx (x = 7, 15, 23, 32, 40, 51, 62, 73 and 86) nanoparticles (NPs) formed by co-reduction of HAuCl4 and H2PtCl6 and the details are presented in this work. Au100−xPtx NPs were characterized using surface plasmon resonance ( ... ...

Abstract	A graded nano-alloy of Au100−xPtx (x = 7, 15, 23, 32, 40, 51, 62, 73 and 86) nanoparticles (NPs) formed by co-reduction of HAuCl4 and H2PtCl6 and the details are presented in this work. Au100−xPtx NPs were characterized using surface plasmon resonance (SPR) absorption spectroscopy and transmission electron microscopy (TEM). The NPs were dispersed in Vulcan carbon (Au100−xPtx/C) and annealed at 250, 400, 600 and 800 °C. The as-formed and annealed materials were characterized using TEM, high resolution transmission electron microscopy (HR-TEM), powder X-ray diffraction (XRD), cyclic voltammetry (CV) and X-ray photoelectron spectroscopy (XPS). The CV studies indicate excess Pt on the surface, which is corroborated by XPS and HR-TEM results. The XRD data show that Vegard's law is obeyed by the as-formed material and the materials annealed at 250 and 400 °C, indicating that these materials are not nano-alloys. The studies clearly indicate that the formation of Au100−xPtx NPs is kinetically controlled rather than being controlled by the thermodynamic stability. The results demonstrate the formation of graded alloys of Au100−xPtx NPs. Pt excess in the graded nano-alloy is reflected favourably in the electrochemical oxidation of small organics. In the methanol oxidation reaction (MOR), the peak current value per mg of Pt increases as a function of x, reaches a maximum value at x = 23 and the ratio of forward current to reverse current for MOR reached an unprecedented value of 6.7, which shows the catalyst’s stability against poisoning by carbonaceous intermediates.
Keywords	alloy nanoparticles ; alloys ; carbon ; catalysts ; electrochemistry ; gold ; methanol ; oxidation ; platinum ; poisoning ; surface plasmon resonance ; thermodynamics ; transmission electron microscopy ; X-ray diffraction ; X-ray photoelectron spectroscopy
Language	English
Dates of publication	2013-0226
Size	p. 4048-4056.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/c3ta01451g
Database	NAL-Catalogue (AGRICOLA)

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