Surfaces functionalized by graphene oxide nanosheets for single cell investigations

Dedelaite, Lina; Rodriguez, Raúl D.; Andriukonis, Eivydas; Hietschold, Michael; Zahn, Dietrich R. T.; Ramanavičius, Arūnas

doi:10.1016/j.snb.2017.08.187

Cited by 14 publications

(5 citation statements)

References 51 publications

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“…Graphene is an important material for both fundamental sciences and industrial applications such as in microelectronics, energy storage, flexible display, transparent conductive electrode, composite, biological, and biomimetic devices . In spite of the intense research efforts on achieving chemical‐free, low‐temperature processing of high‐quality graphene, cost‐effective synthetic methods to directly fabricate graphene sheets on a substrate are still lacking …”

Section: Introductionmentioning

confidence: 99%

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

et al. 2019

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In the past decade, graphene has shown great value in both fundamental sciences and practical applications. In spite of the intense research efforts on achieving chemical‐free, low‐temperature processing of high‐quality graphene, cost‐effective synthetic methods to directly fabricate graphene sheets on a substrate are still lacking. Laser‐induced graphene (LIG) is a recently developed method to directly form graphene from carbon‐rich materials. In this work, combined are theoretical and experimental approaches to systematically investigate the light‐material interactions in LIG fabrication processes. First, developed is a molecular dynamics model to disclose the transient formation process of LIG and identified are the critical parameters that govern this process. Following the theoretical prediction, developed is a system to utilize a picosecond UV laser to directly fabricate graphene from polyimide films at room temperature and under atmospheric pressure. After investigating the effects of the laser processing parameters on the LIG quality and subsequent processing optimization, it is experimentally demonstrated that picosecond UV laser processing can be used to prepare high‐quality LIG. With the newly developed LIG, fabricated is a high‐sensitive proximity sensor.

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Section: Introductionmentioning

confidence: 99%

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

et al. 2019

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“…The aforementioned advantages of Raman spectroscopy play an important role for investigation of molecular bonds and molecular species in different cell structures [14][15][16]. The idea of cell-wall component identification, allowing for distinguishing between bacteria according to their spectral characteristics, is being actively explored by several research groups.…”

Section: Introductionmentioning

confidence: 99%

Raman spectroscopy revealsM. tuberculosisstrains with different antibiotic susceptibility

et al. 2019

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The drug resistance of Mycobacterium tuberculosis (MbT) remains a serious challenge to global public health as extensively drug resistant tuberculosis usually leads to a lethal outcome. In the case of diseases with resistant strains, it is extremely important to identify a specific strain as soon as possible in order to start an adequate therapy. One such diagnostic method could be the Raman spectroscopy method. We investigated M. tuberculosis strains of the Beijing family deactivated by heating, with different drug sensitivity: sensitive, multi- and extensively drug resistant. Samples, obtained from patient specimens were investigated by Raman spectrometry with the He–Ne (632.8 nm) laser excitation source. As a result, a set of optimal experimental parameters for strain discrimination were determined based on the cell-wall spectral differences. These differences distinguish between drug-sensitive and drug-resistant strains as well as between strains isolated from material samples taken from patients suffering from pulmonary and extra-pulmonary forms of tuberculosis. We suggest that the obtained results allow the usage of the Raman spectroscopy as a fast diagnostic tool for determining various strains in clinical medical practice.

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“…For example, in the case of graphene oxide, the oxygen-containing groups determine the degree of cell attachment and cell proliferation. 53,54 We performed contact angle (CA) measurements to evaluate the surface wettability of Mod-G and GO films and the changes that occurred after laser treatment, see results in Fig. S10 (ESI †).…”

Section: Applications Of Laser-irradiated Mod-g: a Gas Sensor And A Fmentioning

confidence: 99%

Beyond graphene oxide: laser engineering functionalized graphene for flexible electronics

et al. 2020

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Surfaces functionalized by graphene oxide nanosheets for single cell investigations

Cited by 14 publications

References 51 publications

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application

Raman spectroscopy revealsM. tuberculosisstrains with different antibiotic susceptibility

Beyond graphene oxide: laser engineering functionalized graphene for flexible electronics

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