02393nas a2200301   4500008004100000022001400041245014400055210006900199260000800268300001600276490000700292520136200299653001401661653002401675653002001699653002001719100001501739700002301754700001701777700002001794700002301814700001601837700003701853700002201890700002501912700002701937856012701964       2025                        eng d  a2190-681500aSustainable isolation of cellulose nanofibers with superior crystallinity and thermal stability from Terminalia catappa L. fruit peel waste0 aSustainable isolation of cellulose nanofibers with superior crys  cJUL  a21557-215720 v153 a<p>
	Turning agricultural waste into value-added products is a key focus of sustainable development. Herein, cellulose nanofibers (CNF) were extracted from the pericarp of Terminalia catappa L. for the first time. The CNF was extracted by chlorine-free pretreatment methods followed by oxalic acid hydrolysis (5 wt%) assisted with steam explosion. The prepared CNF were characterized by Fourier transform infrared spectroscopy (FTIR), solid-state 13C nuclear magnetic resonance spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA and DTG). FTIR analysis confirmed the successful removal of lignin and hemicellulose during chemical treatment which was again validated by solid-state 13C NMR analysis. TEM image revealed that the diameter of the extracted nanofibers ranges from 14 to 18 nm. From XRD analysis, the crystallinity index of the CNF was 82%, while that of the raw sample was 62 %. The temperature at which the maximum degradation (Tmax) of CNF occurred was found to be 372 degrees C which is superior to that of the raw sample (334 degrees C). The extracted cellulose nanofibers were used to prepare cellulose paper, demonstrating a tensile strength of 1.1 MPa, indicating its potential suitability for biodegradable packaging applications.</p>
10acellulose10aCellulose nanofiber10agreen synthesis10aWaste to wealth1 aHarsha, R.1 aMol, A., P. Princy1 aPaul, Sharon1 aBadawi, Michael1 aAjithkumar, T., G.1 aRao, Jeevan1 aParameswaranpillai, Jyotishkumar1 aNair, Ajalesh, B.1 aBegum, P., M. Sabura1 aDominic, C., D. Midhun  uhttps://library.ncl.res.in/content/sustainable-isolation-cellulose-nanofibers-superior-crystallinity-and-thermal-stability02224nas a2200265   4500008004100000022001400041245014800055210006900203260000800272300001100280490000800291520124100299653003201540653003301572653002001605653002001625100002301645700002501668700003401693700002301727700003701750700002001787700002701807856012401834       2026                        eng d  a0254-058400aUpcycling used lottery tickets: extraction, characterization, and life cycle assessment of cellulose nanofibers using a cradle-to-gate approach0 aUpcycling used lottery tickets extraction characterization and l  cJUN  a1323530 v3573 a<p>
	This work examines a sustainable approach for the isolation, characterization and Life Cycle Impact Assessment of cellulose nanofibers derived from post-consumer lottery tickets. The lottery tickets were subjected to bleaching using 15% H2O2 and 10% NaOH in a 5:1 ratio at 80 degrees C, followed by acid hydrolysis using 5% oxalic acid assisted with steam explosion. The isolated cellulose nanofibers were 16 to 36 nm diameter range with a crystallinity index of 84.5%. The zeta potential value of-25.19 mV revealed moderate colloidal stability for nanocellulose suspension. The thermal stability of nanocellulose fibers was reported around 300 degrees C in N2 atmosphere. The films fabricated from the nanocellulose fibers reported a tensile strength of 4.6 +/- 0.90 MPa. The cradle-to-gate Life Cycle Impact Assessment revealed the impact of electricity consumption and bleaching process on the isolation of nanocellulose from waste lottery paper. These findings underline the potential of waste-derived CNFs for sus-tainable applications such as biodegradable packaging while promoting circular economy principles and green nanotechnology through waste valorisation, eco-friendly chemistry, and life cycle sustainability.</p>
10aCellulose nanofibers (CNFs)10aLife cycle impact assessment10aLottery tickets10aWaste to wealth1 aMadhu, Athulya, K.1 aRosa, Derval, Santos1 ade Oliveira, Sueli, Aparecida1 aAjithkumar, T., G.1 aParameswaranpillai, Jyotishkumar1 aBadawi, Michael1 aDominic, C., D. Midhun  uhttps://library.ncl.res.in/content/upcycling-used-lottery-tickets-extraction-characterization-and-life-cycle-assessment