relation: https://khub.utp.edu.my/scholars/6373/ title: Catalyst-free synthesis of carbon nanospheres for potential biomedical applications: Waste to wealth approach creator: Manaf, S.A.A. creator: Roy, P. creator: Sharma, K.V. creator: Ngaini, Z. creator: Malgras, V. creator: Aldalbahi, A. creator: Alshehri, S.M. creator: Yamauchi, Y. creator: Hegde, G. description: A single step and simple pyrolysis technique is used to prepare carbon nanospheres (CNSs) from natural biowaste sago hampas in a nitrogen atmosphere without any catalyst. Scanning electron microscope (SEM) images along with transmission electron microscope (TEM) images show evidence of high quality CNSs with a good particle size uniformity. Both X-ray diffraction (XRD) and Raman data show the presence of graphitic characteristic peaks of CNSs. Zeta-potential study reveals that the obtained CNSs can be well dispersed in solution making them suitable for cell imaging applications. The use of biowaste sago hampas is very important from the viewpoint of sustainable synthesis of functional CNSs for the future. © The Royal Society of Chemistry 2015. publisher: Royal Society of Chemistry date: 2015 type: Article type: PeerReviewed identifier: Manaf, S.A.A. and Roy, P. and Sharma, K.V. and Ngaini, Z. and Malgras, V. and Aldalbahi, A. and Alshehri, S.M. and Yamauchi, Y. and Hegde, G. (2015) Catalyst-free synthesis of carbon nanospheres for potential biomedical applications: Waste to wealth approach. RSC Advances, 5 (31). pp. 24528-24533. ISSN 20462069 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924565123&doi=10.1039%2fc4ra14693j&partnerID=40&md5=1a461a0e38daadf108f744deda9c7ce3 relation: 10.1039/c4ra14693j identifier: 10.1039/c4ra14693j