Details

Autor(en) / Beteiligte

• Xuan, Hongyun
• Zhu, Yanxi
• Ren, Jiaoyu
• Ge, Liqin

Titel

Intrinsic self-healing and biocompatibility of carbon nitride coatings via inhibiting or degrading ethylene for fruit preservation

Ist Teil von

• Journal of materials science, 2019-06, Vol.54 (12), p.9282-9290

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Intrinsic self-healing of C 3 N 4 coatings based on host–guest interaction was achieved on fruit substrates via layer-by-layer assembly technique. The coatings were made of alternating layers of poly(ethylenimine)-β-cyclodextrin (PEI-βCD), poly(acrylic acid)-adamantanamine (PAA-AD), and carbon nitride (C 3 N 4 ). The ultrasonic treatment was used to inhibit C 3 N 4 agglomeration and to form a homogeneous suspension of PEI-βCD-C 3 N 4 . Then, PAA-AD and PEI-βCD-C 3 N 4 were self-assembled to obtain the (PAA-AD/PEI-βCD-C 3 N 4 )*15 coatings. The photoactivity of the coatings was monitored using photodegradation of methylene blue dye under visible light. We hypothesized that the coatings could be applied to banana fresh-keeping packaging materials by inhibiting or degrading ethylene. The results verified that the coatings possessed excellent degradablility and fresh-keeping performances. Moreover, cell viability tests showed that the coatings exhibited good biocompatibility. In particular, the coatings exhibited excellent self-healing property due to the reversible nature of the host–guest interaction. The coatings show great potential for applications in multifunctional commercial supplies, such as packaging materials.