Petr Šmejkal

ORCID: 0000-0002-2643-710X
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About
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Research Areas
  • Microfluidic and Capillary Electrophoresis Applications
  • Microfluidic and Bio-sensing Technologies
  • Electrowetting and Microfluidic Technologies
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Additive Manufacturing and 3D Printing Technologies
  • 3D Printing in Biomedical Research
  • Biosensors and Analytical Detection
  • Electrochemical Analysis and Applications
  • Advanced Chemical Sensor Technologies
  • Analytical Chemistry and Sensors
  • Advanced Sensor and Energy Harvesting Materials
  • Electrochemical sensors and biosensors
  • Nanofabrication and Lithography Techniques
  • Materials Engineering and Processing
  • Nanopore and Nanochannel Transport Studies
  • Micro and Nano Robotics
  • Analytical Chemistry and Chromatography
  • Biosimilars and Bioanalytical Methods
  • Nanomaterials and Printing Technologies
  • Glycosylation and Glycoproteins Research
  • Mechanical and Thermal Properties Analysis
  • Advanced Biosensing Techniques and Applications
  • Advanced biosensing and bioanalysis techniques
  • Geophysical and Geoelectrical Methods

University of Tasmania
2012-2023

Dublin City University
2010-2013

Czech Academy of Sciences, Institute of Analytical Chemistry
2010-2013

University of Pardubice
2010

One-step fabrication of transparent three-dimensional (3D) microfluidic to millifluidic devices was demonstrated using a commercial 3D printer costing $2300 with 500 mL clear resin for $138. It employs dynamic mask projection stereolithography, allowing fast concept-to-chip time. The fully automated system allows models up 43 mm × 27 180 (x y z) at printing speeds 20 mm/h in height regardless the design complexity. minimal cross sectional area 250 μm achieved monolithic microchannels and 200...

10.1021/ac4041857 article EN Analytical Chemistry 2014-02-10

Three-dimensional (3D) printing has emerged as a potential revolutionary technology for the fabrication of microfluidic devices. A direct experimental comparison three 3D technologies dominating microfluidics was conducted using Y-junction device, design which optimized each printer: fused deposition molding (FDM), Polyjet, and digital light processing stereolithography (DLP-SLA). Printer performance evaluated in terms feature size, accuracy, suitability mass manufacturing; laminar flow...

10.1021/acs.analchem.7b00136 article EN publisher-specific-oa Analytical Chemistry 2017-03-10

One of the largest impediments in development microfluidic-based smart sensing systems is manufacturability integrated, complex devices. Here we propose multimaterial 3D printing for fabrication such devices a single step. A microfluidic device containing an integrated porous membrane and embedded liquid reagents was made by applied analysis nitrate soil. The manufacture sealed realized as print within 30 min. body printed transparent acrylonitrile butadiene styrene (ABS) contained 400 μm...

10.1021/acs.analchem.7b00409 article EN Analytical Chemistry 2017-03-23

A relative lack of printable materials with tailored functional properties limits the applicability three-dimensional (3D) printing. In this work, a diamond–acrylonitrile butadiene styrene (ABS) composite filament for use in 3D printing was created through incorporation high-pressure and high-temperature (HPHT) synthetic microdiamonds as filler. Homogenously distributed diamond filaments, containing either 37.5 or 60 wt % microdiamonds, were formed preblending powder ABS, followed by...

10.1021/acsami.8b18232 article EN ACS Applied Materials & Interfaces 2019-01-09

The internal standard capillary electrophoresis method (IS-CE) has been implemented in a novel sequential injection–capillary instrument for the high-throughput determination of acidity constants (pKa) regardless aqueous solubility, number pKa values, or structure. This comprises buffer creation system that automatically mixes within few seconds four reagents situ separation electrolyte with pH range 2–13, ionic strength 10–100 mM and organic solvent content from 0% to 40%. Combined 1.2...

10.1021/acs.analchem.5b00845 article EN Analytical Chemistry 2015-05-14

Abstract Fluorescently labeled carbohydrates released from glycoproteins were separated using a commercially available microfluidic chip electrophoresis system. While the instrumentation was primarily designed for DNA analysis it found that application base can be easily expanded development software provided by manufacturer. The enzymatic digestion (PNGase F) present in human plasma after boronic acid – lectin affinity enrichment. After fluorescent labeling with...

10.1002/elps.201000457 article EN Electrophoresis 2010-10-22

Evanescent wave-initiated photopolymerisation in an optically wave guiding PTFE-coated fused silica capillary using light-emitting diode as a light source, is established here way to fabricate monolithic porous layer open-tubular columns with potential separation methods; application of the obtained enzymatic microreactors for on-line protein digestion demonstrated.

10.1039/b920789a article EN The Analyst 2010-01-01

ITP with indirect fluorescence detection (IFD) was introduced three decades ago. Despite this fact, the method has never become widely adopted. The main aim of work to utilize ITP–IFD for separation carboxylic acids by using a commercially available, portable, microfluidic chip electrophoresis system. On 16.8‐mm effective length channel, maximum eight could be separated, LOD values in range from 0.12 0.4 mM. commercial chips used all experiments have multichannel structures important...

10.1002/elps.201200141 article EN Electrophoresis 2012-08-10

In capillary electrophoresis (CE), the inner surface of fused-silica capillaries is commonly covalently modified with liquid silanes to control electroosmotic flow (EOF). This phase deposition (LPD) approach challenging for long and narrow-diameter (≥1 m, ≤25 μm ID) inhibiting commercial production. Here, we use chemical vapour (CVD) modify different silanes. Using a home-built CVD device, were neutral (3-glycidyloxypropyl) trimethoxysilane (GPTMS), weak base (3-aminopropyl) (APTMS), acid...

10.1016/j.aca.2023.341847 article EN cc-by Analytica Chimica Acta 2023-09-26

A prerequisite for ordered two-dimensional (2D) separations and full utilization of the enhanced 2D peak capacity is selective exploitation sample attributes, described as dimensionality. In order to take dimensionality into account prior optimization a separation, new concept based on construction separation selectivity maps proposed demonstrated ion chromatography × capillary electrophoresis (IC×CE) low-molecular-mass organic acids test analytes. For this purpose, 1D were constructed...

10.1021/acs.analchem.7b01187 article EN Analytical Chemistry 2017-08-03
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