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Your search keyword '"Tyagi, Preeti"' showing total 43 results
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43 results on '"Tyagi, Preeti"'

27. Contributors

Author

Abayneh, Atinafu, Abookleesh, Frage, Aggarwal, Shruti, Aguilar, Pablo Figuereido, Ahmed, Shakeel, Ali, S. Wazed, Anandharamakrishnan, C., Annu, Antil, Reena, Atoyebi, E.O., Azam, Zaffar, Baghel, Kalpana, Bairagi, Satyaranjan, Banerjee, Sourav, Banerjee, Swagata, Beitum, Larissa Rodrigues, Bhattacharya, Tanima, Bhilare, Neha, Camas, Karen Lopez, Chowdhury, Zaira Zaman, Dele-Afolabi, T.T., Devaraj, Nisha Kumari, Ege, Hasan, Ege, Zeynep Ruya, Enguven, Gozde, Faisal, Abu Nasser, Garcia, Ana Laura, Garg, Shivani, Gautam, Rupesh K., Gebretsadik, Abbay, Goyal, Rajat, Gulia, Surender Singh, Gundawar, Ravi, Gunduz, Oguzhan, Gupta, Priyanka, Gupta, Reena, Hanim, M.A. Azmah, Herrero, Yanet Rodríguez, Ikram, Rabea, Jayakumar, Aswathy, Johan, Mohd Rafie, Karayil, Jasila, Kaur, Manpreet, Kelele, Kiflom Gebremedhn, Khalid, Khalisanni, Kim, Jun Tae, Lai, Chin Wei, Lathwal, Jyoti, Maity, Subhankar, Makgobole, M.U., Mdluli, P.S., Merino, Danila, Mkhwanazi, B.N., Moses, J.A., Mpofana, N., Murthy, H.C. Ananda, Narayanan, Aswathy, Neelam, Nimbkar, Shubham, Nishat, Nahid, Ojo-Kupoluyi, O.J., Okonkwo, S.C., Onwubu, S.C., Osmani, Riyaz Ali M., Pandit, Pintu, Parameswaranpillai, Jyotishkumar, Quilez-Molina, Ana Isabel, Radoor, Sabarish, Rahman, Md Mahfujur, Rhim, Jong Whan, Rumjit, Nelson Pynadathu, Saini, Vipin, Sehgal, Rutika, Shahzaib, Adnan, Shaily, Sharma, Vibhuti, Shekh, Mehdihasan I., Shetty, Karishma, Siengchin, Suchart, Singh, Ekta, Soma Yasaswi, P., Sood, Apoorva, Subhasri, D., Tapia-Blácido, Delia Rita, Thomas, Paul, Tyagi, Preeti, Ullah, Aman, Uzun, Muhammet, Walia, Unnati, Yadav, Khushwant S., Zafar, Fahmina, and Zitei-Baptista, Luis Fernando

Published
2023
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31. Rheology of nanocellulose-rich aqueous suspensions

Author

Hubbe, Martin A., Tayeb, Pegah, Joyce, Michael, Tyagi, Preeti, Kehoe, Margaret, Dimic-Misic, Katarina, Pal, Lokendra, North Carolina State University, Printing Technology, Department of Bioproducts and Biosystems, Aalto-yliopisto, and Aalto University

Subjects
Bacterial cellulose, Suspension viscosity, Cellulose nanocrystals, Nanocellulose hydrogels, Nanofibrillated cellulose, Colloidal forces
Abstract

The flow characteristics of dilute aqueous suspensions of cellulose nanocrystals (CNC), nanofibrillated cellulose (NFC), and related products in dilute aqueous suspensions could be of great importance for many emerging applications. This review article considers publications dealing with the rheology of nanocellulose aqueous suspensions in the absence of matrix materials. In other words, the focus is on systems in which the cellulosic particles themselves "dependent on their morphology and the interactive forces between them" largely govern the observed rheological effects. Substantial progress in understanding rheological phenomena is evident in the large volume of recent publications dealing with such issues including the effects of flow history, stratification of solid and fluid layers during testing, entanglement of nanocellulose particles, and the variation of inter-particle forces by changing the pH or salt concentrations, among other factors. Better quantification of particle shape and particle-to-particle interactions may provide advances in future understanding. Despite the very complex morphology of highly fibrillated cellulosic nanomaterials, progress is being made in understanding their rheology, which supports their usage in applications such as coating, thickening, and 3D printing.

Published
2017

33. A functional study on small intestinal smooth muscles in jejunal atresia

Author

Tyagi, Preeti, Mandal, Maloy, Gangopadhyay, Ajay, and Patne, Shashikant

Subjects
Bath products, Histamine, Acetylcholine, Health
Abstract

Byline: Preeti. Tyagi, Maloy. Mandal, Ajay. Gangopadhyay, Shashikant. Patne Aim: The present study was aimed to assess the contractile status of neonatal small intestinal smooth muscle of dilated pre-atretic part [...]

Published
2016

34. Nanocellulose in thin films, coatings, and plies for packaging applications

Author

Hubbe, Martin A., Ferrer, Ana, Tyagi, Preeti, Yin, Yuanyuan, Salas, Carlos, Pal, Lokendra, Rojas, Orlando J., North Carolina State University, Nalco Company, Department of Bioproducts and Biosystems, Aalto-yliopisto, and Aalto University

Subjects
Food shelf life, Barrier properties, Cellulose nanomaterials, Packages, Oxygen transmission, Water vapor transmission
Abstract

This review article was prompted by a remarkable growth in the number of scientific publications dealing with the use of nanocellulose (especially nanofibrillated cellulose (NFC), cellulose nanocrystals (CNC), and bacterial cellulose (BC)) to enhance the barrier properties and other performance attributes of new generations of packaging products. Recent research has confirmed and extended what is known about oxygen barrier and water vapor transmission performance, strength properties, and the susceptibility of nanocellulose-based films and coatings to the presence of humidity or moisture. Recent research also points to various promising strategies to prepare ecologically-friendly packaging materials, taking advantage of nanocellulose-based layers, to compete in an arena that has long been dominated by synthetic plastics. Some promising approaches entail usage of multiple layers of different materials or additives such as waxes, high-aspect ratio nano-clays, and surface-active compounds in addition to the nanocellulose material. While various high-end applications may be achieved by chemical derivatization or grafting of the nanocellulose, the current trends in research suggest that high-volume implementation will likely incorporate water-based formulations, which may include water-based dispersions or emulsions, depending on the end-uses.

Published
2017

35. Ecofriendly and Innovative Processing of Hemp Hurds Fibers for Tissue and Towel Paper.

Author

Naithani, Ved, Tyagi, Preeti, Jameel, Hasan, Lucia, Lucian A., and Pal, Lokendra

Abstract

An innovative approach for preparing hemp fibers from hemp hurds for use in tissue and towel grades of paper is described. Hemp hurds are a low value by-product of industrial hemp processing that are generally used for animal bed litter. Tissue paper was fabricated from hemp hurd fibers by following three pulping processes: autohydrolysis (hydrothermal), sodium carbonate-based defibration, and high yield kraft pulping, and benchmarked against hardwood pulp. To meet industrial standards, hardwood and hemp pulp fibers were mixed at a dry mass ratio of 75:25, from which tissue paper sheets were prepared. Desirable tissue paper properties, such as water absorption, burst resistance, softness, and tensile strength (dry and wet), were measured and compared. Characterization of morphological and chemical properties of tissue handsheets was conducted with SEM and time-of-flight-secondary ion mass spectrometry (ToF-SIMS). The combined kraft pulped hardwood and autohydrolyzed hemp pulp fibers displayed improvements in tensile index, burst resistance, and softness of tissue handsheets compared to only kraft hardwood pulp handsheets without adversely impacting water absorption. Hardwood fibers showed a sparse distribution of surface lignin compared to hemp fibers using the same defibration. This technology can lead to a variety of eco-friendly tissue paper products that are not only highly energy efficient, but avoid harsh chemical processing. [ABSTRACT FROM AUTHOR]

Published
2020
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42. High-Strength Antibacterial Chitosan–Cellulose Nanocrystal Composite Tissue Paper

Author

Tyagi, Preeti, Mathew, Reny, Opperman, Charles, Jameel, Hasan, Gonzalez, Ronalds, Lucia, Lucian, Hubbe, Martin, and Pal, Lokendra

Abstract

A heightened need to control the spread of infectious diseases prompted the current work in which functionalized and innovative antimicrobial tissue paper was developed with a hydrophobic spray-coating of chitosan (Ch) and cellulose nanocrystals (CNCs) composite. It was hypothesized that the hydrophobic nature of chitosan could be counterbalanced by the addition of CNC to maintain fiber formation and water absorbency. Light-weight tissue handsheets were prepared, spray-coated with Ch, CNC, and their composite coating (ChCNC), and tested for antimicrobial activity against Gram-negative bacteria Escherichia coliand a microbial sample from a human hand after using the rest room. Water absorption and strength properties were also analyzed. To activate the surface of cationized tissue paper, an oxygen/helium gas atmospheric plasma treatment was employed on the best performing antimicrobial tissue papers. The highest bactericidal activity was observed with ChCNC-coated tissue paper, inhibiting up to 98% microbial growth. Plasma treatment further improved the antimicrobial activity of the coatings. Water absorption properties were reduced with Ch but increased with CNC. This “self-disinfecting” bactericidal tissue has the potential to be one of the most innovative products for the hygiene industry because it can dry, clean, and resist the infection of surfaces simultaneously, providing significant societal benefits.

Published
2019
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