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Shukla S, Jadaun A, Arora V, Sinha RK, Biyani N, Jain VK. In vitro toxicity assessment of chitosan oligosaccharide coated iron oxide nanoparticles. Toxicol Rep 2014; 2:27-39. [PMID: 28962334 PMCID: PMC5598369 DOI: 10.1016/j.toxrep.2014.11.002] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 09/25/2014] [Accepted: 11/01/2014] [Indexed: 11/25/2022] Open
Abstract
Iron oxide nanoparticles (INPs) have potential biological, biomedical and environmental applications. These applications require surface modification of the iron oxide nanoparticles, which makes it non-toxic, biocompatible, stable and non-agglomerative in natural and biological surroundings. In the present study, iron oxide nanoparticles (INPs) and chitosan oligosaccharide coated iron oxide nanoparticles (CSO-INPs) were synthesized to evaluate the effect of surface coating on the stability and toxicity of nanoparticles. Comparative in vitro cytotoxicity of nanoparticles was evaluated in HeLa (human cervix carcinoma), A549 (human lung carcinoma) and Hek293 (human embryonic kidney) cells by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay along with flow cytometry study for cell viability, membrane integrity, mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) production. Morphological alteration in nanoparticles treated cells was analyzed by Acridine orange/ethidium bromide double staining and electron microscopy. Synthesized nanoparticles were found to be spherical in shape, well dispersed and stable at various pH values, making them suitable for biomedical and environmental applications. The present study also indicates that the chitosan oligosaccharide coating on iron oxide nanoparticles results in the decrease in cellular damage and moderate ROS production, thereby, significantly decreasing the cytotoxic impact of bare iron oxide nanoparticles.
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Kumar A, Singh BP, Punia M, Singh D, Kumar K, Jain VK. Determination of volatile organic compounds and associated health risk assessment in residential homes and hostels within an academic institute, New Delhi. INDOOR AIR 2014; 24:474-483. [PMID: 24438189 DOI: 10.1111/ina.12096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 01/11/2014] [Indexed: 06/03/2023]
Abstract
The purpose of this study was to investigate the concentrations of volatile organic compounds (VOCs) in different indoor microenvironments of residential homes and hostels in an academic institute, in New Delhi, during March-May 2011. Eleven VOCs (aromatic and halogenated) were assessed. Sampling and analytical procedure were based on National Institute for Occupational Safety and Health (NIOSH) standard method. The lifetime cancer and non-cancer risk were calculated for targeted VOCs using US Environmental Protection Agency guidelines. The mean concentrations of ∑ VOCs (sum of monitored VOCs) and individual VOC were found to be higher indoors as compared to outdoors at both types of premises. Indoor to outdoor (I/O) ratios of the targeted VOCs exceeded 1.0, suggesting the significant presence of indoor sources. Strong correlations between I/O concentrations of VOCs in the current study suggest the presence of common sources. Factor analysis (FA) was used for source evaluation separately at two premise types. The estimated lifetime cancer risks in the current study for all occupants at both premises exceeded 10(-6) .
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Singh B, Jain VK, Singh S. Mammogram Mass Classification Using Support Vector Machine with Texture, Shape Features and Hierarchical Centroid Method. JOURNAL OF MEDICAL IMAGING AND HEALTH INFORMATICS 2014. [DOI: 10.1166/jmihi.2014.1312] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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54
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Kaur S, Jindal N, Jain VK. Mutilating basal cell carcinoma. Indian J Dermatol Venereol Leprol 2014; 80:431. [PMID: 25201845 DOI: 10.4103/0378-6323.140303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
The electron spin resonance (ESR) of Cr3+ in K1−xTlxAl(SO4)2·12H2O has been studied at 300 K and 9.45 GHz. The ESR spectrum for x between 30 and 90% shows several chromium complexes. The variation of the zero-field splitting parameter D suggests that monovalent ions play an important role in the trigonal distortion of the water octahedron around the trivalent metal ion in alums. - PASC: 76.30 F.
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Kamra A, Jain VK, Singh S. Extraction of Orientation Field Using Gabor Filter and Gradient Based Approach for the Detection of Subtle Signs in Mammograms. JOURNAL OF MEDICAL IMAGING AND HEALTH INFORMATICS 2014. [DOI: 10.1166/jmihi.2014.1266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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57
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Jain VK, Wadawale A, Kushwah NP, Pal MK. Synthesis, structures and utility of organogallium and organoindium complexes with oxo and thio ligands. Russ Chem Bull 2014. [DOI: 10.1007/s11172-014-0511-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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58
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Jain VK, Takhar R, Malik M, Biswas R. Recurrent pain-abdomen, breathlessness and abdominal injury in the remote past. CASE REPORTS 2014; 2014:bcr-2013-202916. [DOI: 10.1136/bcr-2013-202916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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59
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Kumar A, Singh BP, Punia M, Singh D, Kumar K, Jain VK. Assessment of indoor air concentrations of VOCs and their associated health risks in the library of Jawaharlal Nehru University, New Delhi. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:2240-2248. [PMID: 24046229 DOI: 10.1007/s11356-013-2150-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 09/09/2013] [Indexed: 06/02/2023]
Abstract
The present work investigated the levels of total volatile organic compounds (TVOC) and benzene, toluene, ethylbenzene, m/p-xylene, and o-xylene (BTEX) in different microenvironments in the library of Jawaharlal Nehru University in summer and winter during 2011-2012. Carcinogenic and non-carcinogenic health risks due to organic compounds were also evaluated using US Environmental Protection Agency (USEPA) conventional approaches. Real-time monitoring was done for TVOC using a data-logging photo-ionization detector. For BTEX measurements, the National Institute for Occupational Safety and Health (NIOSH) standard method which consists of active sampling of air through activated charcoal, followed by analysis with gas chromatography, was performed. Simultaneously, outdoor measurements for TVOC and BTEX were carried out. Indoor concentrations of TVOC and BTEX (except benzene) were higher as compared to the outdoor for both seasons. Toluene and m/p-xylene were the most abundant organic contaminant observed in this study. Indoor to outdoor (I/O) ratios of BTEX compounds were generally greater than unity and ranged from 0.2 to 8.7 and 0.2 to 4.3 in winter and summer, respectively. Statistical analysis and I/O ratios showed that the dominant pollution sources mainly came from indoors. The observed mean concentrations of TVOC lie within the second group of the Molhave criteria of indoor air quality, indicating a multifactorial exposure range. The estimated lifetime cancer risk (LCR) due to benzene in this study exceeded the value of 1 × 10(-6) recommended by USEPA, and the hazard quotient (HQ) of non-cancer risk came under an acceptable range.
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Mishra M, Jain VK, Singh AK, Jain N, Sharma A, Singh A. Hair: an unusual foreign body in airways presenting with haemoptysis in an adult patient. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2014; 56:53-54. [PMID: 24930210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Haemoptysis is defined as expectoration of blood originating from the lungs or tracheo-bronchial tree. It is attributed to various causes like tuberculosis, bronchiectasis, lung cancer, mycetoma, foreign bodies etc. Various types of foreign bodies have been reported in the literature. We report the case of an adult female patient who presented with an episode of haemoptysis (150 mL) in whom flexible fibreoptic bronchoscopy revealed a single long hair at the carina going to left main bronchus. Following successful removal of this hair there were no further episodes of haemoptysis and the patient manifested clinical and radiological improvement.
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Jairath V, Sehrawat M, Jindal N, Jain VK, Aggarwal P. Lyme disease in Haryana, India. Indian J Dermatol Venereol Leprol 2014; 80:320-3. [DOI: 10.4103/0378-6323.136894] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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62
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Suman N, Kumar R, Jain VK. Development of electroless, potable water sterilisation device based on nanophase modified concrete pebbles. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/1433075x12y.0000000077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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63
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Basniwal RK, Chauhan RPS, Bhatia V, Jain VK. Toxicity Study of Multiwalled Carbon Nanotubes on Freshwater Aquatic Algae. ACTA ACUST UNITED AC 2013. [DOI: 10.1166/jbns.2013.1188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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64
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Kunwar A, Jain VK, Priyadarsini KI, Haston CK. A Selenocysteine Derivative Therapy Affects Radiation-Induced Pneumonitis in the Mouse. Am J Respir Cell Mol Biol 2013; 49:654-61. [DOI: 10.1165/rcmb.2013-0095oc] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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65
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Sharma H, Jain VK, Khan ZH. Use of constant wavelength synchronous spectrofluorimetry for identification of polycyclic aromatic hydrocarbons in air particulate samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 108:268-273. [PMID: 23501938 DOI: 10.1016/j.saa.2013.01.079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 01/28/2013] [Accepted: 01/31/2013] [Indexed: 06/01/2023]
Abstract
We have developed a simple, rapid, inexpensive method for the identification of fluoranthene (Flan), benz(a)anthracene (BaA), benzo(a)pyrene (BaP), benzo(k)fluoranthene (BkF), pyrene (Pyr), benz(ghi)perylene (BghiP) in suspended particulate matter in an urban environment of Delhi. Suspended particulate matter samples of 24h duration were collected on glass fiber filter papers. Polycyclic aromatic hydrocarbons (PAHs) were extracted from the filter papers using dichloromethane (DCM) and hexane with ultrasonication method. Comparison of the characteristic emission of spectra of PAHs with standard spectra indicated the degree of condensation of aromatic compounds present in investigated mixtures. It was also possible to identify some individual compounds. However, this identification could be more effective with the use of the respective values of Δλ parameter for each particular component of the mixture.
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Singh D, Prakash A, Srivastava AK, Kumar K, Jain VK. The effects of meteorological parameters in ambient noise modelling studies in Delhi. ENVIRONMENTAL MONITORING AND ASSESSMENT 2013; 185:1873-82. [PMID: 22580749 DOI: 10.1007/s10661-012-2674-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 04/26/2012] [Indexed: 05/16/2023]
Abstract
The acoustic environment in urban areas has gained prominence in recent times due to rapid industrial and commercial development in metropolitan cities. Various attempts have been made to predict and model the trends in urban ambient noise levels using different statistical and dynamic models. The present study makes an attempt to examine the role of meteorological parameters affecting the ambient noise levels in Delhi. The results show significant improvement in overall noise scenario of Delhi since the introduction of compressed natural gas vehicles in public transport of Delhi. The noise level is significantly reduced by high vegetation cover as well as by low relative humidity over Delhi. The regression models developed for the present study clearly show the significant contribution of meteorological parameters in governing the ambient noise levels in Delhi.
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Shah A, Tyagi A, Naidu BS, Sudarsan V, Vatsa RK, Jain VK. Structural differences in the luminescence properties of lanthanide doped orthorhombic and monoclinic phases of Y2GeO5. RSC Adv 2013. [DOI: 10.1039/c3ra41953c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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68
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Vivekananda KV, Dey S, Wadawale A, Bhuvanesh N, Jain VK. Syntheses of Pd(ii)/Pt(ii) complexes with non-chelating 4-pyridylselenolate ligand ranging from mononuclear to macrocyclic structures and their utility as catalysts in Suzuki C–C coupling reaction. Dalton Trans 2013; 42:14158-67. [DOI: 10.1039/c3dt51510a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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69
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Jain VK, Arora A, Biswas R. Recent fever, sudden dyspnoea and ST elevation with raised cardiac enzymes. CASE REPORTS 2012. [DOI: 10.1136/bcr-2012-007118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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70
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Aggarwal K, Jain VK, Jangra S, Wadhera R. Angiokeratoma circumscriptum of the tongue. Indian Pediatr 2012; 49:316-318. [PMID: 22565076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Angiokeratoma circumscriptum is rare cutaneous disorder. It usually presents as multiple,red, blue or black asymptomatic papules on lower extremities. Oral involvement, common in systemic form, is rare in localized forms. We report a case of angiokeratoma circumscriptum of tongue, involving both dorsal and ventral aspects.
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Gupta S, Kumar K, Srivastava A, Srivastava A, Jain VK. Size distribution and source apportionment of polycyclic aromatic hydrocarbons (PAHs) in aerosol particle samples from the atmospheric environment of Delhi, India. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:4674-4680. [PMID: 21889785 DOI: 10.1016/j.scitotenv.2011.08.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 08/01/2011] [Accepted: 08/06/2011] [Indexed: 05/31/2023]
Abstract
Ambient aerosol particles were collected using a five-stage impactor at six different sites in Delhi. The impactor segregates the TSPM into five different sizes (viz. >10.9, 10.9-5.4, 5.4-1.6, 1.6-0.7, and <0.7μm). Samples collected were chemically analyzed for all the five size ranges, for the estimation of 16 different PAHs. The particle size distribution of PAHs was observed to be unimodal in nature with the highest peak towards the smallest size aerosol particle (<0.7μm). The five size ranges were categorized into two broad categories viz. coarse (>10.9+10.9 to 5.4+5.4 to 1.6μm) and fine (1.6 to 0.7+<0.7μm). It was observed that the dominant PAHs found were pyrene, benzo(a)pyrene, benzo(ghi)perylene and benzo(b)fluoranthene for both the coarse and fine fractions. Source apportionment of polycyclic aromatic hydrocarbons (PAHs) has been carried out using principal component analysis method (PCA) in both coarse and fine size modes. The major sources identified in this study, responsible for the elevated concentration of PAHs in Delhi, are vehicular emission and coal combustion. Some contribution from biomass burning was also observed.
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Agrawal YK, Gogoi PJ, Manna K, Bhatt HG, Jain VK. A supercritical fluid chromatography/tandem mass spectrometry method for the simultaneous quantification of metformin and gliclazide in human plasma. Indian J Pharm Sci 2011; 72:50-7. [PMID: 20582190 PMCID: PMC2883227 DOI: 10.4103/0250-474x.62231] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Revised: 10/05/2009] [Accepted: 12/23/2009] [Indexed: 11/17/2022] Open
Abstract
Present study reports the development and validation of a simultaneous estimation of metformin and gliclazide in human plasma using supercritical fluid chromatography followed by tandem mass spectrometry. Acetonitrile:water (80:20) mixture was used as a mobile phase along with liquid CO2 in supercritical fluid chromatography and phenformin as an internal standard. The modified plasma samples were analyzed by electro-spray ionization method in selective reaction monitoring mode in tandem mass spectrometry. Supercritical fluid chromatographic separation was performed using nucleosil C18 containing column as a stationary phase. The separated products were identified by characteristic peaks and specific fragments peaks in tandem mass spectrometry as m/z 130 to 86 for metformin, m/z 324 to 110 for gliclazide and m/z 206 to 105 for phenformin. The present method was found linear in the concentration ranges of 6.0-3550 ng/ml and 7.5-7500 ng/ml for metformin and gliclazide, respectively. Pharmacokinetic study was performed after an oral administration of dispersible tablets containing 500 mg of metformin and 80 mg of gliclazide using same techniques.
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73
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Isha, Jain VK, Lal H. C-reactive protein and uric Acid levels in patients with psoriasis. Indian J Clin Biochem 2011; 26:309-11. [PMID: 22754198 PMCID: PMC3162954 DOI: 10.1007/s12291-011-0132-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Accepted: 04/09/2011] [Indexed: 02/01/2023]
Abstract
Serum CRP and uric acid levels were estimated in twenty-five patients with psoriasis (group III) before and after 12 weeks of treatment. Results were compared with a group of 25 normal subjects (group I) and a group of 25 patients of various skin diseases other than psoriatic lesion (group II). Mean value for CRP was found to be increased by more than 20 folds in patients with psoriasis, which was subsequently reduced to nearly 50% of the initial value after 12 weeks of treatment. These patients also showed hyperuricemia. Nearly 25% of these patients also exhibited arthritis. It is thus suggested that both CRP and uric acid levels should be monitored in patients with psoriasis.
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Jain VK, Hughes BGM, Brown T, Spurgin A, Hartnett GF, Keller J, Tripcony L, Hodge RA. Outcomes following implementation of guidelines for selecting patients who require a gastrostomy tube insertion prior to start of concurrent chemoradiotherapy (CRT) for head and neck cancer (H&NCa): A tertiary institution study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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75
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Basniwal RK, Buttar HS, Jain VK, Jain N. Curcumin nanoparticles: preparation, characterization, and antimicrobial study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:2056-61. [PMID: 21322563 DOI: 10.1021/jf104402t] [Citation(s) in RCA: 485] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Curcumin is a highly potent, nontoxic, bioactive agent found in turmeric and has been known for centuries as a household remedy to many ailments. The only disadvantage that it suffers is of low aqueous solubility and poor bioavailability. The aim of the present study was to develop a method for the preparation of nanoparticles of curcumin with a view to improve its aqueous-phase solubility and examine the effect on its antimicrobial properties. Nanoparticles of curcumin (nanocurcumin) were prepared by a process based on a wet-milling technique and were found to have a narrow particle size distribution in the range of 2-40 nm. Unlike curcumin, nanocurcumin was found to be freely dispersible in water in the absence of any surfactants. The chemical structure of nanocurcumin was the same as that of curcumin, and there was no modification during nanoparticle preparation. A minimum inhibitory concentration of nanocurcumin was determined for a variety of bacterial and fungal strains and was compared to that of curcumin. It was found that the aqueous dispersion of nanocurcumin was much more effective than curcumin against Staphylococcus aureus , Bacillus subtilis , Escherichia coli , Pseudomonas aeruginosa , Penicillium notatum , and Aspergillus niger . The results demonstrated that the water solubility and antimicrobial activity of curcumin markedly improved by particle size reduction up to the nano range. For the selected microorganisms, the activity of nanocurcumin was more pronounced against Gram-positive bacteria than Gram-negative bacteria. Furthermore, its antibacterial activity was much better than antifungal activity. The mechanism of antibacterial action of curcumin nanoparticles was investigated by transmission electron micrograph (TEM) analysis, which revealed that these particles entered inside the bacterial cell by completely breaking the cell wall, leading to cell death.
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