TY - JOUR
T1 - Fluorescent Self-Healing Carbon Dot/Polymer Gels
AU - Bhattacharya, Sagarika
AU - Phatake, Ravindra Suresh
AU - Nabha Barnea, Shiran
AU - Zerby, Nicholas
AU - Zhu, Jun Jie
AU - Shikler, Rafi
AU - Lemcoff, Norberto Gabriel
AU - Jelinek, Raz
N1 - Funding Information:
We are grateful to the Ministry of Science and Technology, Israel, for financial support under the China-Israel grant program. J.-J.Z. thanks the support from International cooperation foundation from Ministry of Science and Technology of China (2016YFE0130100). We thank Mr. Ahiud Morag for help with the digital images and Mr. Juergen Jopp for assistance with the interferometer and AFM experiments.
Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/2/26
Y1 - 2019/2/26
N2 - Multicolor, fluorescent self-healing gels were constructed through reacting carbon dots produced from different aldehyde precursors with branched polyethylenimine. The self-healing gels were formed through Schiff base reaction between the aldehyde units displayed upon the carbon dots' surface and primary amine residues within the polyethylenimine network, generating imine bonds. The dynamic covalent imine bonds between the carbon dots and polymeric matrix endowed the gels with both excellent self-healing properties as well as high mechanical strength. Moreover, the viscoelastic properties of the gels could be intimately modulated by controlling the ratio between the carbon dots and polymer. The distinct fluorescence emissions of the gels, originating from the specific carbon dot constituents, were employed for fabrication of light emitters at different colors, particularly generating white light.
AB - Multicolor, fluorescent self-healing gels were constructed through reacting carbon dots produced from different aldehyde precursors with branched polyethylenimine. The self-healing gels were formed through Schiff base reaction between the aldehyde units displayed upon the carbon dots' surface and primary amine residues within the polyethylenimine network, generating imine bonds. The dynamic covalent imine bonds between the carbon dots and polymeric matrix endowed the gels with both excellent self-healing properties as well as high mechanical strength. Moreover, the viscoelastic properties of the gels could be intimately modulated by controlling the ratio between the carbon dots and polymer. The distinct fluorescence emissions of the gels, originating from the specific carbon dot constituents, were employed for fabrication of light emitters at different colors, particularly generating white light.
KW - Aldehydes
KW - Carbon dots
KW - Dynamic covalent bonds
KW - Fluorescent gels
KW - Imines
KW - Self-healing gels
UR - http://www.scopus.com/inward/record.url?scp=85060021124&partnerID=8YFLogxK
U2 - 10.1021/acsnano.8b07087
DO - 10.1021/acsnano.8b07087
M3 - Article
C2 - 30615415
AN - SCOPUS:85060021124
SN - 1936-0851
VL - 13
SP - 1433
EP - 1442
JO - ACS Nano
JF - ACS Nano
IS - 2
ER -