Fernando Antonio Calzzani Junior

Formação complementar

Idiomas

Áreas de atuação

Produções bibliográficas

• CALZZANI, F. ; CHHAY, B. ; ZIMMERMAN, R. ; OZTARHAN, A. ; ILA, D. . Nano- and Micro-Structural Evolution of UHMWPE by Ion Beam. MRS PROCEEDINGS , v. 1020, p. 1020-GG07-08, 2011.

• SADATE, SANDRA ; CALZZANI JUNIOR, F. A. ; KASSU, ASCHALEW ; SHARMA, ANUP . Recycling of surface-enhanced Raman substrates by ultraviolet cleaning. OPTICAL ENGINEERING , v. 49, p. 106, 2010.

• CALZZANI, JR., FERNANDO A. ; TAGUENANG, JEAN M. ; SILESHI, REDAHEGN K. ; SHARMA, ANUP . Photochemical nano-scale patterning with Rhodamine 6G dye from aqueous phase. In: NanoScience + Engineering, 2008, San Diego. p. 703306.

• KASSU, ASCHALEW ; CALZZANI, JR., FERNANDO A. ; TAGUENANG, JEAN M. ; SILESHI, REDAHEGN K. ; SHARMA, ANUP . Patterning and characterization of model phospholipid membranes. In: NanoScience + Engineering, 2008, San Diego, 2008. p. 703508.

• CALZZANI, JR., F. A. ; SILESHI, R. ; KASSU, A ; TAGUENANG, J. M. ; CHOWDHURY, A. ; SHARMA, A. ; RUFFIN, P. B. ; BRANTLEY, C. ; EDWARDS, E. . Detection of residual traces of explosives by surface enhanced Raman scattering using gold coated substrates produced by nanospheres imprint technique. In: SPIE Defense and Security Symposium, 2008, Orlando, 2008. p. 69451O.

• KASSU, ASCHALEW ; TAGUENANG, JEAN M. ; CALZZANI JUNIOR, F. A. ; SILESHI, REDAHEGN K. ; SHARMA, ANUP . Polybutadiene polymer as a photopatterning substrate. In: American Physical Society, 2008. 75th Annual Meeting of the Southeastern Section of AP, 2008.

• TAGUENANG, JEAN M. ; KASSU, ASCHALEW ; SILESHI, REDAHEGN K. ; CALZZANI, JR., FERNANDO A. ; SHARMA, ANUP . UV Induced Photopatterning of Poly-L-Lysine and Photodegradation of Ppolymethylmetacrylate. In: American Physical Society, 75th Annual Meeting of the Southeastern Section of APS, 2008. American Physical Society, 75th Annual Meeting of the Southeastern Section of APS, 2008.

• CALZZANI JUNIOR, F. A. ; RENATO AMARAL MINAMISAWA ; PARADA, M. A. ; Daniel Souza Felipe . A Photometric System for FXG Dosimetry. In: International Nuclear Atlantic Conference, 2005. International Nuclear Atlantic Conference, 2005.

Projetos de pesquisa

• 2007 - 2008

  Surface Enhanced Raman Spectroscopy of Explosive Residuals, Descrição: Explosives such as Trinitrotoluene (TNT), Cyclotrimethylenetrinitramine (RDX), Cyclotetramethylene-tetranitramine (HMX) and nitroglicerine are commonly used by terrorists to fabricate improvised bombs. Thus, its early detection certainly can contribute to save uncountable number of lives. Recent scientific studies claim the pos- sibility of single-molecule detection using SERS whose prior results potentially mean that SERS spectroscopy could be a cost effective solution to detect trace amounts of those explosive particles suspended in the air. An investigation has been realized on the use of the Surface Enhanced Raman Spectroscopy (SERS) technique to identify the minimum concentration of residual amounts of common explosives such as TNT, HMX and RDX by using a low cost and low resolution Raman spectrometer (LRRS). The work proposes to describe in details the methods of Surface Enhanced Raman Spectroscopy as well to investigate the effects that take place at nano scale and lead to such large enhancement. The study describe methods for developing affordable SERS substrates and try to define their most suitable properties in order to obtain the highest enhancement factor possible. The investigation also covers tuning pro- cesses by changing different experimental parameters in order to optimize the plasma frequency of metallic structures on the surface. FDTD numerical simulation model is used to calculate the intricate electromagnetic field at the nano-particles neighbor- hood as well to obtain locations and magnitudes of resonant sites.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Fernando Antonio Calzzani Junior - Integrante / SHARMA, A. - Coordenador., Financiador(es): Alabama EPSCoR Program - Bolsa.

• 2006 - 2007

  Evolution of UHMWPE nanostructure under MeV Ion Beam, Descrição: It is important to produce uniform nano-patterns with no possibility of surface exfoliation on polyethylene devices used in medical and in aerospace industry. We studied the change in the surface morphology of polyethylene at nanoscale using MeV ion beam. We have investigated the change in the surface morphology before and after ion bombardment. We have made an attempt to change the morphology to produce a uniform surface with reduced cracks and reduced granularity. For this process we have chosen ultra-high-molecular-weight polyethylene (UHMWPE). Coupons of these materials were exposed to various fluences of MeV Ag+ ions. The surface morphology and the change in the chemical structure were studied using scanning micro Raman, FTIR and AFM.. , Situação: Desativado; Natureza: Pesquisa. , Integrantes: Fernando Antonio Calzzani Junior - Integrante / ILA, D. - Coordenador.

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