التفاصيل البيبلوغرافية
| العنوان: |
Nanocomposites of PVA-PVP and l-ascorbic acid modified ZnO:Fe via ultrasonic irradiation as a green technique: Latent fingerprint detection, food packing and anti-bacterial applications. |
| المؤلفون: |
Narasimhamurthy, K.N.1 (AUTHOR), Daruka Prasad, B.1,2 (AUTHOR) darukap@bmsit.in, Radha Krushna, B.R.1 (AUTHOR), Sharma, S.C.1,3 (AUTHOR) scsharma.bangalore@gmail.com, Ponnazhagan, K.4 (AUTHOR), Francis, Dileep5 (AUTHOR), Nijalingappa, T.B.6 (AUTHOR), Nasreen Taj, M.7 (AUTHOR), Nagabhushana, H.1 (AUTHOR) bhushanvlc@gmail.com |
| المصدر: |
Inorganic Chemistry Communications. Oct2023, Vol. 156, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*FORENSIC fingerprinting, *POLYMER blends, *NANOCOMPOSITE materials, *VITAMIN C, *FOOD preservation, *CONTACT angle |
| مستخلص: |
[Display omitted] • flexible PVA-PVP (50:50) thin films entrapped with 2, 5, and 8 wt% of Fe doped ZnO nanofillers with Vitamin C as a bio-safe coupling agent. • The bactericidal stuff and inhibition zone enhanced with the addition of the ZnO:Fe@Vitamin C nanopowders. • The modified ZFVC NPs greatly enhance the visualization of LFPs regardless of background hindrance and thus can be a promising candidate for LFP detection. In order obtain exceptional composite material, the two polymers, poly(vinyl alcohol) (PVA) and poly(N-vinyl-2-pyrrolidone) (PVP) blend was prepared. First time, vitamin C (Vit C), a biosafe coupling agent was used to modify the surface of ZnO:Fe nanoparticles (NPs)NPs. To the polymer blend, surface modified ZnO:Fe of different ratios (2, 5 and 8 wt%) NPs were used as a matrix filler. Reported method of preparation effectively disperse the NPs quickly in to the polymer matrix and it was an eco-friendly approach. The obtained nanocomposites (NCs) were characterised by advanced experimental techniques. Examining the structure of the molecules revealed the morphology of the NCs and the compatibility of the NPs with the blended polymer. TGA results confirms the improved thermal characteristics for the NPs doped samples than the pure polymer blend. The optical absorbance of the produced NCs was also affected by embedding the modified NPs in the blend polymer. The hydrophilicity decreased for various ratios of the modified NPs loaded in the blend polymer, according to the contact angle measurements. Use of PVA-PVP-ZnO:Fe@Vitamin C (5 wt%) NCs were demonstrated for their potentiality in the food preservation, The self-life of grapes was qualitatively enhanced and utility in food wrapping applications has been demonstrated. With the addition of the ZnO:Fe@Vitamin C nanopowders (ZFVC), it acts as the bactericidal substance and inhibition zone improved. The modified ZFVC NPs significantly improve LFP visualisation despite background interference, making them a suitable candidate for LFP identification. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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