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Water-matrix interaction at the drop-drop interface during drop-on-demand printing of hydrogels.

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Title: Water-matrix interaction at the drop-drop interface during drop-on-demand printing of hydrogels.
Authors: Cheng, Cih1 (AUTHOR), Moon, Yoon Jae2 (AUTHOR), Kim, Samuel Haidong2 (AUTHOR), Jeong, Yong-Cheol2 (AUTHOR), Hwang, Jun Young2 (AUTHOR), Chiu, George T.-C.1,3 (AUTHOR), Han, Bumsoo1,3,4 (AUTHOR) bumsoo@purdue.edu
Source: International Journal of Heat & Mass Transfer. Apr2020, Vol. 150, pN.PAG-N.PAG. 1p.
Subjects: Hydrogels, Cosmetics industry, Pore water, Acrylamide, Microstructure
Abstract: • Drop-drop interactions during hydrogel printing are explained considering water-matrix interactions within hydrogel drops printed. • A similarity mechanism of water-matrix interaction, and associated dimensionless parameter are proposed. • The water-matrix interactions at the drop-drop interfance affect the microstructure of hydrogel drops printed. Hydrogel-based soft materials have been used in numerous applications in healthcare, food, pharmaceutical, and cosmetic industries. Manufacturing hydrogels whose functional properties and compositions are voxelized at superior spatial resolutions can significantly improve current applications as well as will enable a new generation of soft materials. However, it remains challenging to control the structure and composition of soft materials reliably. In this context, the drop-on-demand (DOD) printing of hydrogels shows excellent potential to address this manufacturing challenge. Despite this potential, a lack of mechanistic understanding of the behavior of printed hydrogel drops makes it challenging to design and optimize DOD printing protocols for a wide variety of hydrogels. In particular, the curing of hydrogel drops, which requires dehydration of printed hydrogel drops, is poorly understood. In this study, thus, a hypothesis was postulated and tested that water-matrix interaction at drop-drop interfaces during curing processes determine the quality of hydrogels printed. Both computational and experimental studies were performed to establish a mechanism of the water-matrix interaction within printed hydrogel drops. The results were further discussed to establish a dimensionless similarity parameter that can characterize water transports during the hydrogel dehydration process. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 141733947
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Water-matrix interaction at the drop-drop interface during drop-on-demand printing of hydrogels.
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  Data: <searchLink fieldCode="AR" term="%22Cheng%2C+Cih%22">Cheng, Cih</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moon%2C+Yoon+Jae%22">Moon, Yoon Jae</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Samuel+Haidong%22">Kim, Samuel Haidong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jeong%2C+Yong-Cheol%22">Jeong, Yong-Cheol</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hwang%2C+Jun+Young%22">Hwang, Jun Young</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chiu%2C+George+T%2E-C%2E%22">Chiu, George T.-C.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Bumsoo%22">Han, Bumsoo</searchLink><relatesTo>1,3,4</relatesTo> (AUTHOR)<i> bumsoo@purdue.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Heat+%26+Mass+Transfer%22">International Journal of Heat & Mass Transfer</searchLink>. Apr2020, Vol. 150, pN.PAG-N.PAG. 1p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydrogels%22">Hydrogels</searchLink><br /><searchLink fieldCode="DE" term="%22Cosmetics+industry%22">Cosmetics industry</searchLink><br /><searchLink fieldCode="DE" term="%22Pore+water%22">Pore water</searchLink><br /><searchLink fieldCode="DE" term="%22Acrylamide%22">Acrylamide</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Drop-drop interactions during hydrogel printing are explained considering water-matrix interactions within hydrogel drops printed. • A similarity mechanism of water-matrix interaction, and associated dimensionless parameter are proposed. • The water-matrix interactions at the drop-drop interfance affect the microstructure of hydrogel drops printed. Hydrogel-based soft materials have been used in numerous applications in healthcare, food, pharmaceutical, and cosmetic industries. Manufacturing hydrogels whose functional properties and compositions are voxelized at superior spatial resolutions can significantly improve current applications as well as will enable a new generation of soft materials. However, it remains challenging to control the structure and composition of soft materials reliably. In this context, the drop-on-demand (DOD) printing of hydrogels shows excellent potential to address this manufacturing challenge. Despite this potential, a lack of mechanistic understanding of the behavior of printed hydrogel drops makes it challenging to design and optimize DOD printing protocols for a wide variety of hydrogels. In particular, the curing of hydrogel drops, which requires dehydration of printed hydrogel drops, is poorly understood. In this study, thus, a hypothesis was postulated and tested that water-matrix interaction at drop-drop interfaces during curing processes determine the quality of hydrogels printed. Both computational and experimental studies were performed to establish a mechanism of the water-matrix interaction within printed hydrogel drops. The results were further discussed to establish a dimensionless similarity parameter that can characterize water transports during the hydrogel dehydration process. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ijheatmasstransfer.2020.119327
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Hydrogels
        Type: general
      – SubjectFull: Cosmetics industry
        Type: general
      – SubjectFull: Pore water
        Type: general
      – SubjectFull: Acrylamide
        Type: general
      – SubjectFull: Microstructure
        Type: general
    Titles:
      – TitleFull: Water-matrix interaction at the drop-drop interface during drop-on-demand printing of hydrogels.
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            NameFull: Cheng, Cih
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            NameFull: Moon, Yoon Jae
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            NameFull: Kim, Samuel Haidong
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            NameFull: Jeong, Yong-Cheol
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            NameFull: Hwang, Jun Young
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              M: 04
              Text: Apr2020
              Type: published
              Y: 2020
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