Search

Your search keyword '"Khan, Mansoor A."' showing total 2,159 results
Start Over Author "Khan, Mansoor A."
2,159 results on '"Khan, Mansoor A."'

154. Magnetic Adsorbent Decorated with Poly(N-Isopropylacrylamide) (PNIPAM) Brushes for the Vortex-Assisted Solid Phase Extraction (VASPE) of Lead in Water, Cigarettes and Soil with High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS) Detection

Author

Khan, Mansoor, Alosmanov, Rasim, Wolski, Karol, Zapotoczny, Szczepan, and Soylak, Mustafa

Subjects
*SOLID phase extraction, *LEAD in water, *FLAME, *CIGARETTES, *TOBACCO smoke, *SPECTROMETRY, *CESIUM ions, *GAMMA ray spectrometry, *CESIUM compounds
Abstract

Here is reported the synthesis of a magnetic phosphorus-containing adsorbent decorated with poly(N-isopropylacrylamide) (PNIPAM) brushes via surface-initiated atom transfer radical polymerization (SI-ATRP) and its application for vortex assisted solid phase extraction of lead in water, cigarettes and soil. The adsorbent was characterized using Fourier-transform infrared spectroscopy (FT-IR) and energy dispersive x-ray (EDX) spectroscopy. A high-resolution continuum source flame atomic absorption spectrometer (HR-CS FAAS) was used for the quantification of lead. All factors affecting the extraction efficiency including the solution pH, adsorbent dose, sample volume, vortex time, and elution protocols were optimized. The limits of detection (LOD) and quantification (LOQ) were determined to be 0.05 µg L−1 and 0.18 µg L−1, respectively. The preconcentration and enhancement factors were 20 and 18. Validation was performed using TMDA 64.3 fortified water and INCT-OBTL-5 tobacco leaves certified reference materials with satisfactory recoveries. The method was shown to be sensitive, efficient and reproducible. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

155. Microextraction/Extraction Procedures for Aluminum in Food and Environmental Samples: A Review.

Author

Khan, Mansoor, Akhtar, Farhan, Badshah, Amir, ALOthman, Zeid A., and Soylak, Mustafa

Abstract

AbstractVarious analytical techniques have been used for determination of trace aluminum (Al). However, due this element’s low concentration levels, these techniques are unsuitable for precise and accurate analysis of Al in various food and environmental samples without prior preconcentration. Therefore, many preconcentration procedures have been adopted to enrich Al for its precise and accurate quantification. This review summarizes solid phase and liquid phase preconcentration methods for the enrichment of Al. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

156. Reconstruction of soft tissue defects of hand: A systematic approach.

Author

Khan, Mansoor, Hayat, Waqas, ullah, Hidayat, and Khan, Nasir Hayat

Subjects
*ELECTRICAL injuries, *HAND injuries, *ELECTRICAL burns, *SOFT tissue injuries, *PLASTIC surgery, *CLASSIFICATION algorithms, *TISSUES
Abstract

Background and Objective: A thorough insight into the management of hand injuries can shape the approach of a surgeon in order to achieve optimal outcomes for the patients. The aim of this study was to share our experience in reconstruction of the hand and establishing an algorithm for classification and treatment of hand injuries. Methods: This is a descriptive cross sectional study and was conducted from January 2020 to August 2022 at Burns and Plastic Surgery center, Peshawar. Data was collected from medical records about the patient demographics, mechanism of injury and type of procedures done. Defect size was classified into small (<5cm), medium (5cm to 10 cm) and large (>10cm). The defect site and size was cross tabulated against the method of soft tissue reconstruction in order to make the algorithm for reconstruction of hand injuries. Data was analyzed using SPSS. Results: The study population included 41 (75.9%) male and 13 (24.1%) female patients, mean age 31.56±14.1. Machine injuries (33.3%) and electric burns (24.1%) were the most common cause of hand soft tissue defects. The most commonly performed flap was Posterior introsseous artery (PIA) flap, followed by First dorsal metacarpal artery (FDMA) flap. Flap necrosis was observed in three cases (5.6%). Conclusion: This treatment algorithm for coverage of soft tissue defects in hand injuries will help with the decision making process of hand reconstruction and has didactic value for novice surgeons. It will also form the foundation for further work on this aspect of hand injuries. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

160. International registry on aortic balloon occlusion in major trauma: Partial inflation does not improve outcomes in abdominal trauma

Author

Paran, Maya, primary, McGreevy, David, additional, Hörer, Tal M., additional, Khan, Mansoor, additional, Dudkiewicz, Mickey, additional, Kessel, Boris, additional, Sadeghi, M., additional, Pirouzram, A., additional, Toivola, A., additional, Skoog, P., additional, Idoguchi, K., additional, Kon, Y., additional, Ishida, T., additional, Matsumura, Y., additional, Matsumoto, J., additional, Maszkowski, M., additional, Bersztel, A., additional, Caragounis, E.C., additional, Bachmann, T., additional, Falkenberg, M., additional, Handolin, L., additional, Chang, S.W., additional, Hecht, A., additional, Hebron, D., additional, Shaked, G., additional, Bala, M., additional, Coccolini, F., additional, Ansaloni, L., additional, Hoencamp, R., additional, Özlüer, Y.E., additional, Hilbert-Carius, Peter, additional, Reva, V., additional, Oosthuizen, G., additional, Szarka, E., additional, Manchev, V., additional, Wannatoop, T., additional, Ordoñez, C.A., additional, Larzon, T., additional, and Nilsson, K.F., additional

Published
2023
Full Text
View/download PDF

161. Contributors

Author

Almqvist, Jessica, primary, Asadi, Amir, additional, Aziz, Qasim, additional, Balardin, Joana Bisol, additional, Ballester, Pedro, additional, Barbeiro, Hermes Vieira, additional, Barbeiro, Denise Frediani, additional, Bekri, Soumeya, additional, Belfort, Rubens, additional, Bergero, Miguel A., additional, Bester, Adri, additional, Bhattacharjee, Gargi, additional, Biazoli, Claudinei Eduardo, additional, Billeci, Lucia, additional, Biude da Silva Duarte, Graziela, additional, Blair, Alex B., additional, Braddick, Darren, additional, Brant, Rodrigo, additional, Britton, Robert A., additional, Burkhart, Richard A., additional, Byrne, J.A., additional, Cabral, Joaquim M.S., additional, Cabral, Thiago, additional, Câmara, José S., additional, Campillo-Artero, Carlos, additional, Castro Guzman, Grover Enrique, additional, Catela Ivkovic, Tina, additional, Cayún, Juan P., additional, Charoo, Naseem A., additional, Chen, Y., additional, Codari, Marina, additional, Correa, Graciely G., additional, Coto-Llerena, Mairene, additional, Couzigou, Patrice, additional, Cozetto, Daniel A., additional, Currie, Gemma, additional, Dalla-Pozza, L., additional, de Jesus, Victor N., additional, de Lara, Zabalo Manrique, additional, Delles, Christian, additional, de Miguel Beriain, Iñigo, additional, de Moura, Juliana, additional, de Paiva, Cintia S., additional, de Souza, Rodrigo G., additional, Detti, Paolo, additional, Díaz, Romina, additional, Ehrenfeld, Jesse M., additional, Faintuch, Bluma Linkowski, additional, Faintuch, Joel, additional, Faintuch, Jacob J., additional, Faintuch, Salomao, additional, Faraldo Corrêa, Telma A., additional, Farmer, Adam D., additional, Freire, Paulo J.C., additional, Fujita, Andre, additional, Garrido, Daniel, additional, Gayatri, Athalye-Jape, additional, Gohil, Nisarg, additional, Gómez de Cedrón, Marta, additional, Gonzalez Moron, Dolores, additional, Ishii, Tetsuya, additional, J. Pirtle, Claude, additional, Jain, Abhishek, additional, Jamieson, R.V., additional, Jiramongkolchai, Kim, additional, Kaiser, Thomas, additional, Kamel Boulos, Maged N., additional, Kanuri, Sri Harsha, additional, Kauffman, Marcelo A., additional, Khambhati, Khushal, additional, Khan, Mansoor A., additional, Kreutz, Rolf P., additional, Kuttolamadom, Mathew, additional, Lal, Hitesh, additional, Lima de Carvalho, Jose Ronaldo, additional, Lins, Milca R.C.R., additional, López-Campos, José Luis, additional, Louis Gehlbach, Peter, additional, Lumbreras, Blanca, additional, Mahajan, Vinit B., additional, Maia, Mauricio, additional, Mani, Indra, additional, Martinez, J. Alfredo, additional, Martinez, Pablo F., additional, Mary, Sheon, additional, Mathur, Tanmay, additional, Miranda, Cláudia C., additional, Mirnezami, Reza, additional, Ng, Charlotte K.Y., additional, Palau, Francesc, additional, Panchasara, Happy, additional, Pandian, Navaneeth K.R., additional, Park, Karen Sophia, additional, Passos, Ives Cavalcante, additional, Pastor-Valero, Maria, additional, Patella, Francesca, additional, Patralekh, Mohit Kumar, additional, Patusco, Lucas Mohr, additional, Pedrolli, Danielle B., additional, Pereira, Jorge A.M., additional, Pesapane, Filippo, additional, Pincelli, João Vitor, additional, Piscuoglio, Salvatore, additional, Ponce-Lorenzo, Jose J., additional, Porto-Figueira, Priscilla, additional, Priyadharshini, V.S., additional, Pushparaj, Peter Natesan, additional, Quiñones, Luis A., additional, Quintanilha, Bruna Jardim, additional, Rahman, Ziyaur, additional, Ramírez de Molina, Ana, additional, Ramos-Lopez, Omar, additional, Ramos, Kenneth S., additional, Rapole, Srikanth, additional, Rebello Pinho, João Renato, additional, Reis, Bruna Zavarize, additional, Rey-Lopez, Juan Pablo, additional, Ribeiro, Nathan V., additional, Rogero, Marcelo Macedo, additional, Roizenblatt, Marina, additional, Roizenblatt, Jaime, additional, Roza, Thiago Henrique, additional, Rozich, Noah S., additional, Ruffle, James K., additional, Sanjay, Patole, additional, Saraiva, Fábio P., additional, Sardanelli, Francesco, additional, Sato, João Ricardo, additional, Schutte, Aletta E., additional, Schwerdtfeger, Luke A., additional, Selahi, Amirali, additional, Sharma, Prakash Chand, additional, Shripada, Rao, additional, Silva, Patrick J., additional, Singh, Vijai, additional, Slaby, Ondrej, additional, Soares, Bruno Araujo, additional, Soriano, Francisco Garcia, additional, Souckova, Kamila, additional, Squizato, Patrick N., additional, Stabellini, Nickolas, additional, Staley, Christopher, additional, Stanke Scandelari, João Paulo, additional, Suter, Matteo B., additional, Sylvester, D.E., additional, Taware, Ravindra, additional, Tebani, Abdellah, additional, Teran, Luis M., additional, Terracciano, Luigi M., additional, Tis, Taleb Ba, additional, Tobet, Stuart A., additional, Tonacci, Alessandro, additional, Toribio-Mateas, Miguel, additional, Tsang, Stephen H., additional, Tsivaka, Dimitra, additional, Tsougos, Ioannis, additional, Vamvakas, Alexandros, additional, Varanini, Maurizio, additional, Vassiou, Katerina, additional, Vatti, Giampaolo, additional, Verma, Renu, additional, Verma, Kalyani, additional, Vittorelli, Luiz Otávio, additional, Volonté, Caterina, additional, von Flüe, Markus, additional, Wafi, Arsalan, additional, Wagatuma Bottolo, Bruna Mayumi, additional, Wei, Qingshan, additional, Zhang, Peng, additional, Zhang, Shengwei, additional, Zhu, Zhigang, additional, and Zimerman, Aline, additional

Published
2020
Full Text
View/download PDF

169. A headspace-gas chromatography method for isopropanol determination in warfarin sodium products as a measure of drug crystallinity

Author

Rahman Ziyaur, Akhtar Sohail, Siddiqui Akhtar, Ciavarella Anthony B., Nguyenpho Agnes, Faustino Patrick J., and Khan Mansoor A.

Subjects
warfarin crystallinity, isopropanol, headspacegas chromatography, Pharmaceutical industry, HD9665-9675
Abstract

Coumadin® a nd s everal generic products of warfarin s odium (WS) contain the crystalline form (clathrate) in which WS and isopropanol (IPA) are associated in a 2:1 molar ratio. IPA is critical in maintaining the WS crystalline structure. Physicochemical properties of the drug and drug product may change when the crystalline drug transforms to amorphous form. A headspace-gas chromatography (HS-GC) method was developed and validated for IPA determination in the WS drug product. n-propanol (NPA) was used as internal standard and the method was validated for specificity, system suitability, linearity, accuracy, precision, range, limits of detection and quantification, and robustness. The method was specific, with good resolution between IPA and NPA peaks. Chromatographic parameters (retention time, IPA/NPA area ratio, tailing factor, theoretical plates, USP symmetry, capacity factor, selectivity and resolution) were consistent over three days of validation. The analytical method was linear from 2-200 μg mL-1 (0.1- 10 % IPA present in the drug product). LOD and LOQ were 0.1 and 2 μg mL-1, respectively. Accuracy at low (2 μg mL-1) and high (200 μg mL-1) IPA concentrations of the calibration curve was 103.3-113.3 and 98.9-102.2 % of the nominal value, resp. The validated method was precise, as indicated by the RSD value of less than 2 % at three concentration levels of the calibration curve. The method reported here was utilized to determine accurately and precisely the IPA content in in-house formulations and commercial products. In summary, IPA determination by HS-GC provides an indirect measure of WS crystallinity in the drug product. Nevertheless, it should be confirmed by another analytical method since IPA from the drug substance is not distinguishable from IPA that may be present outside the drug crystals in a dosage form when prepared by wet granulation with IPA.

Published
2018
Full Text
View/download PDF

184. Nuclear Injuries

Author

Khan, Mansoor Ali, Frankel, Heidi L., Gillman, Lawrence M., editor, Widder, Sandy, editor, Blaivas MD, Michael, editor, and Karakitsos, Dimitrios, editor

Published
2016
Full Text
View/download PDF

189. Deep Eutectic Solvent Based Liquid-Liquid Microextraction of Mercury in Water, Hair and Fish with Spectrophotometric Determination: A Green Protocol

Author

SOYLAK, MUSTAFA and KHAN, MANSOOR

Subjects
Biochemistry (medical), Clinical Biochemistry, Electrochemistry, Biochemistry, Spectroscopy, Analytical Chemistry
Abstract

© 2022 Taylor & Francis Group, LLC.Mercury (Hg) is a toxic heavy metal discharged into the environment by many human and natural sources. Therefore, the precise and accurate determination of trace mercury in samples is of immense importance. In this regard, a spectrophotometric method has been developed for the quantification of Hg (II) in water, hair, and fish using deep eutectic (choline chloride, ChCl + decanol) solvent-based liquid-liquid microextraction (DES-LLME). All of the relevant parameters, including pH (9), volume of 1-(2-pyridylazo)-2-naphthol (PAN) (300 µL), ratio of choline chloride and decanol (1:1), volume of DES (400 µL), volume of tetrahydrofuran (THF) (400 µL), and sample volume (40 mL) were optimized. The low limits of detection (LOD) (0.09 µg L−1) and quantification (LOQ) (0.325 µg L−1) demonstrate that the developed approach is highly sensitive. High preconcentration (PF) and enhancement factors (EF) of 50 show that the developed protocol is highly efficient. The relative standard deviation (RSD) is 6.32%, indicating that the method is reproducible. The method was validated by the analysis of TMDA-53.3 water and NCSZC81002B hair certified reference materials with high recoveries of 97% and 93%, respectively. The method was also employed for the analysis of tap water, dam water, river water, hair, and tuna fish with satisfactory recoveries from 95% to 102%. The developed approach was compared with literature methods on the basis of the limit of detection.

Published
2022

190. Soft tissue reconstruction of the thumb: Classification of defects and standardisation of treatment.

Author

Khan, Mansoor, Hayat, Waqas, Khan, Nasir, Ullah, Hidayat, Ali, Qazi, and Khan, Rashid

Subjects
*THUMB, *PLASTIC surgery, *SOFT tissue injuries
Abstract

Aim: The aim of this article is to share our experience of thumb reconstruction based on the defect and irrespective of the aetiology, and to work towards standardising the treatment for thumb defects. Material and method: This study was conducted at the Burns and Plastic Surgery Centre at Hayatabad Medical Complex from 2018 to 2021. Thumb defects were divided into small (<3 cm), medium (4–8 cm) and large defects (>9 cm). Patients were evaluated for complications post-operatively. The data for defect size and defect site was cross-tabulated for reconstructive options with the help of SPSS. Different flaps were performed depending on the site and size of the defect, which were arranged in a schema to develop an algorithm. Results: After scrutinising the data, 35 patients qualified for the study, comprising 71.4% (25) males and 28.6% (10) females. The mean age (and SD) was 31.17 +15.8 years. The right thumb was affected in the majority of the study sample (57.1%), and the majority were affected by machine injury or post-traumatic contractures, affecting 25.7% (n = 9) and 22.9% (n = 8), respectively. Injuries to the first web space and distal to the IPJ of the thumb were the most common, accounting for 28.6% (n = 10) each. A first dorsal metacarpal artery flap was the most common flap, followed by retrograde posterior interosseous artery flap, observed in 11 (31.4%) and 6 (17.1%) cases. The most common complication observed in the study population was flap congestion (n = 2, 5.7%) with a complete flap loss in 1 patient (2.9%). Based on the cross-tabulation of flaps against the size and location of defects, an algorithm was developed to help standardise reconstruction of thumb defects. Conclusion: Thumb reconstruction is critical in restoring the patient’s hand function. This classification-based, structured approach for thumb reconstruction will help hand surgeons in taking decisions and selecting effective coverage options with minimal complications. Most of these defects can be covered with local, simple flaps without the need for a microvascular reconstruction. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

192. List of Contributors

Author

Aceves-Serrano, Lucero G., primary, Arul, K. Thanigai, additional, Bhatti, Gurjit Kaur, additional, Bhatti, Jasvinder Singh, additional, Binkhathlan, Ziyad, additional, Bozkır, Asuman, additional, Charoo, Naseem Ahmad, additional, Chircov, Cristina, additional, Das, Ishwar, additional, Dhananjayan, Venugopal, additional, Durgun, M. Ezgi, additional, Farnia, Poopak, additional, Ficai, Anton, additional, Ghanavi, Jalaledin, additional, Gherasim, Oana, additional, Grumezescu, Alexandru Mihai, additional, Grumezescu, Valentina, additional, Güngör, Sevgi, additional, Hwang, Hyundoo, additional, Jampílek, Josef, additional, Kahraman, Emine, additional, Kailasa, Suresh Kumar, additional, Karaca, Melek, additional, Kaur, Sukhjinder, additional, Khan, Mansoor A., additional, Khoee, Sepideh, additional, Koduru, Janardhan Reddy, additional, Kráľová, Katarína, additional, Küçüktürkmen, Berrin, additional, Ladchumananandasivam, Rasiah, additional, Lavasanifar, Afsaneh, additional, Manikandan, E., additional, Newton, Amaldoss M J, additional, Ordaz-Martinez, Karen A., additional, Özsoy, Yıldız, additional, Pandey, Sharad P., additional, Pandey, V.N., additional, Pandey, V.S., additional, Panjakumar, Karunamoorthy, additional, Park, Tae-Jung, additional, Rahimi, Shahnaz, additional, Rahman, Ziyaur, additional, Rao, Anita, additional, Ravichandran, Beerappa, additional, Sen, Somnath, additional, Shukla, Tripti, additional, Singh, Bhupinder, additional, Socol, Gabriel, additional, Sudheesh, M.S., additional, Tiwari, Neha, additional, Upmanyu, Neeraj, additional, Vazquez-Piñon, Matias, additional, Velayati, Ali Akbar, additional, and Vijayvergiya, Rajesh, additional

Published
2019
Full Text
View/download PDF

200. Cost-efficiency analysis of conversion to biosimilar filgrastim for supportive cancer care and resultant expanded access analysis to supportive care and early-stage HER2+ breast cancer treatment in Saudi Arabia: Simulation study

Author

Yousef, Consuela Cheriece, primary, Khan, Mansoor Ahmed, additional, Almodaimegh, Hind, additional, Alshamrani, Majed, additional, Alfoheidy, Meteb O., additional, AlAbdalkarim, Hana, additional, AlJedai, Ahmed, additional, Naeem, Anjum, additional, and Abraham, Ivo, additional

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results