Flavia campos marques

Pesquisadora/ química

[Flavia campos marques @Flaviaequimica]

Hi, @LatinXChem ! I'm very excited to share my work “DFT-based analysis of Raman and SERS spectra for cis-(dicyanomethylene) squarate anion” at #LatinXChemNanoMat #NanoMat009 #DFT #SERS #AgNP! Let's enjoy this day at #LatinXChem23 #LatinXChemPhys @nanoscale_rsc @PCCP @ufjf .

[Flavia campos marques @Flaviaequimica]

@duyquang_dao @enri_chem_ @LatinXChem @nanoscale_rsc @PCCP @ufjf Hi @duyquang_dao , thank you for bringing up this question. The use of a single Ag atom was chosen to reduce computational time. We did a simulated with cluster of 10 atoms; however, we didn't observe any significant changes in the spectral profile.

[Flavia campos marques @Flaviaequimica]

Hi, @LatinXChem ! I'm very excited to share my work “DFT-based analysis of Raman and SERS spectra for cis-(dicyanomethylene) squarate anion” at #LatinXChemNanoMat #NanoMat009 #DFT #SERS #AgNP! Let's enjoy this day at #LatinXChem23 #LatinXChemPhys @nanoscale_rsc @PCCP @ufjf .

[Flavia campos marques @Flaviaequimica]

@Nano_Juli @LatinXChem @nanoscale_rsc @PCCP @ufjf @Nano_Juli The measurements were conducted in solution. The SERS spectra were acquired by the preparation of samples: [50 μL of 4.0 mmol L-1 Na2CDSQ + 50 μL of 200.0 mmol L-1 NaNO3 + 100 μL of Ag colloid]

[Flavia campos marques @Flaviaequimica]

@Nano_Juli @LatinXChem @nanoscale_rsc @PCCP @ufjf Good morning @Nano_Juli ! Thanks for your question. AgNP are stabilized by hydroxylamine hydrochloride. However, in our research, we use NaNO3 to induce aggregation and maximize SERS signal enhancement, especially when dealing with CDSQ, which has a low cross-section.

[Flavia campos marques @Flaviaequimica]

@abragasOK @LatinXChem @nanoscale_rsc @PCCP @ufjf @abragasOK Electromagnetic enhancement, despite its substantial impact on Raman signals, does not render data analysis infeasible. It predominantly amplifies the vibrational modes perpendicular to the Ag surface

[Flavia campos marques @Flaviaequimica]

@abragasOK @LatinXChem @nanoscale_rsc @PCCP @ufjf @abragasOk DFT simulations do not take enhancement factors into account. These simulations are essential for verify possible adsorption sites, helping to compare experimental spectral profiles.

[Flavia campos marques @Flaviaequimica]

@abragasOK @LatinXChem @nanoscale_rsc @PCCP @ufjf Good morning @abragasOK , thank you for your question. In this work, both chemical and electromagnetic mechanisms are interconnected. I am specifically analyzing the adsorption of CDSQ on Ag, which is related to the chemical mechanism.

[Flavia campos marques @Flaviaequimica]

@BismarkNogueirs @LatinXChem Very Nice @BismarkNogueirs !!!

[Flavia campos marques @Flaviaequimica]

@Thayla_Coel @LatinXChem @RSC_Energy @PCCP @ChemPhysChem Very Nice!!!!

[ANPG @anpg]

🚨URGENTE! A ANPG @uneoficial e @ubesoficial impetraram MANDADO DE SEGURANÇA COLETIVO no STF contra o decreto de Bolsonaro que bloqueia os recursos e impede o pagamento dos bolsistas da CAPES e médicos-residentes. O ato é ILEGAL pois viola direito líquido e certo dos bolsistas.👇🏿

[Flavia campos marques @Flaviaequimica]

@PauloHen2022 😂😂😂

[Lula @LulaOficial]

A partir de 1º de janeiro de 2023 vou governar para 215 milhões de brasileiros, e não apenas para aqueles que votaram em mim. Não existem dois Brasis. Somo um único país, um único povo, uma grande nação.

[Gustavo F.S. Andrade @gfsandrade]

Our study on Au nanorods based SEF biosensors is out. Congrats to @linuspauling_ and thanks to Jacqueline Santos for the collaboration. Anyone can download for free here for 50 days: https://t.co/sdfKJrlEUq

[Thiago R L C Paixão @thiagorlcp]

Post-doctoral research position in Analytical Chemistry is for the manufacturing and development of low-cost integrated chemical sensors for application in the field

https://t.co/Yz2lHCXsFk

[Flavia campos marques @Flaviaequimica]

@MussumAlive 72.1%

[PHD Comics @PHDcomics]

Make a plan

[Gustavo F.S. Andrade @gfsandrade]

O trabalho envolveu a preparação de caracterização de nanobastões de ouro recobertos por óxido de manganês e a aplicação em espectroscopias intensificadas, SERS e SEF.