Leonardo Schneider - Physicist, Biophysical scientist, Microfluidics engineer, Programmer, and Full-stack Developer


The author

About me


I am a full-stack developer with solid experience in Vue 3, TypeScript, and QA. I hold a Master's and Ph.D. in Physics from the Federal University of Paraná. For over 12 years, I worked in multidisciplinary teams alongside engineers, biologists, chemists, and physicians, gaining more than 10 years of experience in microscopy, photonics, biophysics, prototyping, and microfluidics engineering. Since 2019, I transitioned into the programming world, where I have been exploring my passion for frontend development and data analysis. My background in Physics has sharpened my critical and analytical thinking, making me an adaptable and innovative professional across various fields and teams.









PROJECTS

Photophysical Properties of Flavonoids
Studied of Photophysical Properties of Flavonoids Extracted from Syngonanthus nitens, the Golden Grass | 2016 – 2018
USP, Ribeirão Preto, São Paulo – Brazil

During my PhD, I contributed to investigate natural extracts and search possible applications. My main role was the complete characterization of the extract of Golden Grass flavonoids and learn advanced fluorescence techniques. I ended up discovering that golden grass has incredible antioxidant potential and can be used in the pharmaceutical industry.

✓ Project Management

✓ Time-resolved Confocal Fluorescence Microscopy

✓ Fluorescence Lifetime Imaging

✓ Fluorescence correlation spectroscopy (FCS)

✓ UV/Visible spectroscopy

✓ SUVs production


Lateral flow reader
Diagnostic System Development | 2013 – 2015
IBMP, Curitiba, Paraná – Brazil

In collaboration of IBMP and UFPR, we developed a novel diagnostic system for point-of-care testing, or laboratory use, or performed in point-of-need. We created a new design concept, we refined the internal structures, and we designed the overall electronics of the equipment. From this project, it resulted a software copyright and a patent that was entirely written by myself.

✓ Project Management

✓ Chip Design

✓ Diagnostic System Development

✓ Laser Ablation Prototyping

✓ UV/Visible spectroscopy

✓ Fourier-transform infrared spectroscopy (FTIR)

✓ Development of laser ablation nanoparticles

✓ Dynamic Light Scattering (DLS)

✓ Lateral Flow

✓ Patent Writing


Microfluidic chip
Microfluidic Chip Development | 2010 – 2013
IBMP, Curitiba, Paraná – Brazil

I completely characterized the laser ablation equipment that produced the microfluidic chips. Furthermore, I designed, produced, and tested the microfluidic chips. The turning point was the optimised geometry stopvalves calculation using MatLab. I discovered the exact chip rotation that was capable to produce the ideal pressure to fill all the microfluidic channels before the same-time flow purging. Moreover, I supervised interdisciplinary research groups at large meetings and performed laboratory measurements.

✓ Project Management

✓ MATLAB

✓ Chip Design

✓ CorelDraw

✓ Laser Ablation Prototyping

✓ Plasma Etching

✓ Scanning Electron Microscopy (SEM)


Droplet on superhydrophobic surface
Oil-water separation using superhydrophobic surfaces | 2007 – 2008
UFPR, Curitiba, Paraná – Brazil

Throughout my graduate work, I worked on the development and characterization of superhydrophobic surfaces for oil-water separation. In this project we could measure an incredible contact angle of 179° over the Polytetrafluoroethylene cured coating due the use of electrospray/electrospinning technique.

✓ Electrospray/Electrospinning Technique

✓ Atomic Force Microscopy (AFM)

✓ Superhydrophobic surfaces characterization

✓ Goniometer

✓ Profilometer

✓ Plasma Etching

✓ Scanning Electron Microscopy (SEM)



PUBLICATIONS

Programming Packages

1. ndvi-gee - It is a TypeScript library for acquiring NDVI (normalized difference vegetation index) images with few clouds from a satellite database from Google Earth Engine and it returns a promise fulfilled with an object of interesting data. (2021)
npm GitHub version npm npm

PAPERS

1. Bertallo, Camila R. S., Leonardo S. Berlim, Danilo S. Olivier, Thais R. Arroio, Amando S. Ito, and Giuliano C. Clososki. "Synthesis and photophysical properties of 2-aryl-5-carbonyl indolizines." Dyes and Pigments, 198, 109996. 2022

Google Mycitation: 9

1dx.doi.org/10.1016/j.dyepig.2021.109996

2. Barroso, Rafael P., Leonardo S. Berlim, Amando S. Ito, and Antonio J. Costa‐Filho. "In vitro antioxidant properties of golden grass (Syngonanthus nitens) by electron paramagnetic resonance." Food science & nutrition 7, no. 4, 2019: 1353-1360.

Google Mycitation: 9

Web of Science Citations: 5

doi.org/10.1002/fsn3.969

3. Berlim, L.S., Thomazi, F., Burkarter, E., Marino, B., Eliana, C., Saul, C.K., Ito, A.S. and Dartora, C.A. Modification of Optical and Electrical Characteristics of PEDOT: PSS by Umbelliferone Addition: Optical and Electrical Characterization of Umbelliferone Doped PEDOT: PSS for Photovoltaic Applications. Current Nanoscience, 14(5), pp.403-409. 2018.

Google Mycitation: 2

dx.doi.org/10.2174/1573413714666180222130931

4. Berlim, L.S., Bezerra Jr, A.G., Pazin, W.M., Ramin, T.S., Schreiner, W.H. and Ito, A.S. Photophysical properties of flavonoids extracted from Syngonanthus nitens, the golden grass. Journal of Luminescence, 194, pp.394-400. 2018.

Google Mycitation: 18

Web of Science Citations: 9

dx.doi.org/10.1016/j.jlumin.2017.10.040

5. Berlim, L.S.; Gonçalvez, H.A.; de Oliveira, V.S.; Mattoso, N.; Prudente, A.S.; Bezerra, A.G.; Schreiner, W.H., Syngonanthus nitens: Why it looks like spun gold. Industrial Crops and Products (Print), v. 52, p. 597-602, 2014.

Google Mycitation: 6

Web of Science Citations: 3

SCOPUS Citations: 1

dx.doi.org/10.1016/j.indcrop.2013.11.030

6. Turchetti, D.A.; Rodrigues, P.C.; Berlim, L.S.; Zanlorenzi, C.; Faria, G.C.; Atvars, T.D.Z.; Schreiner, W.H.; Akcelrud, L.C., Photophysical properties of a fluorene bipyridine copolymer and its complexes with europium. Synthetic Metals, v. 162, p. 35-43, 2012.

Google Mycitation: 29

Web of Science Citations: 23

SCOPUS Citations: 12

dx.doi.org/10.1016/j.synthmet.2011.11.005

7. Rodrigues, Paula C.; Berlim, Leonardo S.; Azevedo, Diego; Saavedra, Nestor C.; Prasad, Paras N.; Schreiner, Wido H.; Atvars, Teresa D. Z.; Akcelrud, Leni., Electronic Structure and Optical Properties of an Alternated Fluorene Benzothiadiazole Copolymer: Interplay between Experimental and Theoretical Data. The Journal of Physical Chemistry. A, v. 116, p. 3681-3690, 2012.

Google Mycitation: 40

Web of Science Citations: 24

SCOPUS Citations: 14

dx.doi.org//10.1021/jp211042v

8. Burkarter, E.; Berlim, L. S.; Schreiner, W. H.; Saul, C. K., Spinning droplets on superhydrophobic surfaces. Physics of Fluids (1994), v. 22, p. 012102, 2010.

Google Mycitation: 2

Web of Science Citations: 1

dx.doi.org/10.1063/1.3290992
PATENTS

1. Berlim, L. S.; Nishino L. E. N. A.; Saul, C. K.; Schreiner, W.H.; Eckelberg, R. C; Foti, L.; Krieger, M. A., DISPOSITIVO DE DIAGNÓSTICO DE SIMETRIA RADIAL DO TIPO FLUXO LATERAL, E SISTEMA DE LEITURA DE UM DISPOSITIVO DIAGNÓSTICO DE SIMETRIA RADIAL DO TIPO FLUXO LATERAL. Publication number: BR10201700600, Filing date: 23/03/2017, INPI, Brazil.

2. Berlim, L. S.; Schreiner, W. H.; Foti, L., UTILIZAÇÃO FLAVONÓIDES E/OU XANTONÓIDES DO CAPIM DOURADO (SYNGONANTHUS NITENS) PARA SISTEMAS DE DIAGNÓSTICOS. Publication number: BR1020160135122, Filing date: 12/08/2016, INPI, Brazil.

3. Berlim, L. S.; Schreiner, W. H.; Nishino L. E. N. A., VÁLVULA DE RETENÇÃO FERROFLUÍDICA PARA DISPENSA DE FLUIDOS. Publication number: BR1020120308657, Filing date: 04/12/2012, INPI, Brazil.

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