Soft Gel-Filled Composite Adhesive for Dry and Wet Adhesion

Author(s):  
Kuldeep Kuhar ◽  
Muhamed Jesbeer ◽  
Animangsu Ghatak
2017 ◽  
Vol 172 ◽  
pp. 173-189 ◽  
Author(s):  
Bin Han ◽  
Ke-Ke Qin ◽  
Qian-Cheng Zhang ◽  
Qi Zhang ◽  
Tian Jian Lu ◽  
...  

2021 ◽  
Vol 7 (23) ◽  
pp. eabe8739
Author(s):  
Xin Peng ◽  
Xianfeng Xia ◽  
Xiayi Xu ◽  
Xuefeng Yang ◽  
Boguang Yang ◽  
...  

Achieving strong adhesion of bioadhesives on wet tissues remains a challenge and an acute clinical demand because of the interfering interfacial water and limited adhesive-tissue interactions. Here we report a self-gelling and adhesive polyethyleneimine and polyacrylic acid (PEI/PAA) powder, which can absorb interfacial water to form a physically cross-linked hydrogel in situ within 2 seconds due to strong physical interactions between the polymers. Furthermore, the physically cross-linked polymers can diffuse into the substrate polymeric network to enhance wet adhesion. Superficial deposition of PEI/PAA powder can effectively seal damaged porcine stomach and intestine despite excessive mechanical challenges and tissue surface irregularities. We further demonstrate PEI/PAA powder as an effective sealant to enhance the treatment outcomes of gastric perforation in a rat model. The strong wet adhesion, excellent cytocompatibility, adaptability to fit complex sites, and easy synthesis of PEI/PAA powder make it a promising bioadhesive for numerous biomedical applications.


2018 ◽  
Vol 14 (1) ◽  
pp. 016005 ◽  
Author(s):  
Pho Van Nguyen ◽  
Van Anh Ho

2014 ◽  
Vol 145 (3) ◽  
pp. 342-349 ◽  
Author(s):  
T.H. Wu ◽  
A. Foyet ◽  
A. Kodentsov ◽  
L.G.J. van der Ven ◽  
R.A.T.M. van Benthem ◽  
...  

CORROSION ◽  
1982 ◽  
Vol 38 (7) ◽  
pp. 374-383 ◽  
Author(s):  
Henry Leidheiser

Abstract Seven types of corrosion and precorrosion of painted metals are reviewed: blistering, early rusting, flash rusting, anodic undermining, filiform corrosion, cathodic delamination, and wet adhesion. The importance of the nature of the interfacial region between the coating and the metal is emphasized. Ten unsolved problems are described.


Sign in / Sign up

Export Citation Format

Share Document