Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

Ccorahua, Robert; Troncoso, Omar P.; Rodríguez, Sol; López, Daniel; Torres, Fernando G.

doi:10.1016/j.carbpol.2017.05.005

Cited by 42 publications

(24 citation statements)

References 56 publications

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“…RGO has been incorporated to a BC matrix in order to prepare conductive paper and films [ 52 , 68 , 69 , 70 , 71 ]. Ccorahua et al [ 70 ] reported the incorporation of graphene into a pristine BC network by vacuum filtration. The dependence of the electric conductivity on the amount of graphene incorporated suggested the existence of a critical content of RGO that boosted the conductivity of the BC-RGO nanocomposite.…”

Section: Applications Of Bacterial Cellulose-graphene Nanocompositmentioning

confidence: 99%

Bacterial Cellulose—Graphene Based Nanocomposites

Troncoso

Torres

2020

IJMS

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Bacterial cellulose (BC) and graphene are materials that have attracted the attention of researchers due to their outstanding properties. BC is a nanostructured 3D network of pure and highly crystalline cellulose nanofibres that can act as a host matrix for the incorporation of other nano-sized materials. Graphene features high mechanical properties, thermal and electric conductivity and specific surface area. In this paper we review the most recent studies regarding the development of novel BC-graphene nanocomposites that take advantage of the exceptional properties of BC and graphene. The most important applications of these novel BC-graphene nanocomposites include the development of novel electric conductive materials and energy storage devices, the preparation of aerogels and membranes with very high specific area as sorbent materials for the removal of oil and metal ions from water and a variety of biomedical applications, such as tissue engineering and drug delivery. The main properties of these BC-graphene nanocomposites associated with these applications, such as electric conductivity, biocompatibility and specific surface area, are systematically presented together with the processing routes used to fabricate such nanocomposites.

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Section: Applications Of Bacterial Cellulose-graphene Nanocompositmentioning

confidence: 99%

Bacterial Cellulose—Graphene Based Nanocomposites

Troncoso

Torres

2020

IJMS

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“…A sharp symmetric peak corresponds to less-layer graphene whereas broad peaks are associated with multi-layer grapheme. 40,41 The in-plane crystallite size (L a ) can be calculated by Tuinstra-Koenig (TK) relation 42 (eqn (S1) †). La of AgCl@rGO-(5 wt%)rGH-2, rGH, and GO were estimated to be 19.4, 18.1, and 16.4 nm, which is associated with increase of content of defects.…”

Section: Resultsmentioning

confidence: 99%

Inserting AgCl@rGO into graphene hydrogel 3D structure: synergy of adsorption and photocatalysis for efficient removal of bisphenol A

Chen

Zhao

et al. 2017

RSC Adv.

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“…These products can be obtained either by the native BC coherent network or by disintegrating the BC mat to use it as a source of cellulose (Figure 2). In the first case, BC‐based biosensors are prepared by adding a second phase into the BC network (Evans, O'Neill, Malyvanh, Lee, & Woodward, 2003; Gutierrez et al., 2012; Li, Sun, et al, 2016; Li, Feng, et al, 2019), either by modifying the culture medium during cellulose synthesis (Grande, Torres, Gomez, & Bañó, 2009; Grande, Torres, Gomez, Troncoso, et al, 2009; Lv et al., 2017; Sanchis et al., 2017) or by incorporating such a second phase once the BC network has been obtained (Ccorahua et al., 2017; Torres, Ccorahua, et al, 2019).…”

Section: Processing Routes Used For Bc‐based Biosensorsmentioning

confidence: 99%

“…As these bacteria produce cellulose by building up bundles of nanofibrils, bacterial cellulose composites can be produced using a bottom‐up approach (Grande, Torres, Gomez, Troncoso, et al, 2009). Bacterial cellulose composites have been produced by modifying the growth media of bacteria, incorporating a second phase such as starch, collagen, hydroxyapatite, carbon nanotubes and graphene, among others (Ccorahua, Troncoso, Rodriguez, Lopez, & Torres, 2017; Grande, Torres, Gomez, & Bañó, 2009; Grande, Torres, Gomez, Troncoso, et al, 2009; Kim, Park, Won, Kim, & Lee, 2013; Sanchis et al., 2017; Torres, Arroyo, & Troncoso, 2019; Zhijiang & Guang, 2011). The incorporation of these second phases has allowed the modification of relevant properties such as biocompatibility (Grande, Torres, Gomez, & Bañó, 2009) and electrical conductivity (Ccorahua et al., 2017; Sanchis et al., 2017; Torres, Ccorahua, Arroyo, & Troncoso, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bacterial cellulose‐based biosensors

Torres¹,

Troncoso²,

Gonzales³

et al. 2020

Med Devices & Sens

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A sensor is a device that measures a physical quantity and converts it into a signal, which can be read by an observer or an instrument. It is composed of a receptor element that detects changes or events in a physical environment, and a transducer element that provides an output signal (Ummartyotin & Manuspiya, 2015). Biosensors incorporate biological elements that perform the recognition task. According to the IUPAC (Palchetti, Hansen, & Barcelo, 2017), a biosensor is an integrated receptor transducer device, capable of providing selective quantitative or semi-quantitative analytical information using a biological recognition element. The bioreceptor element of these biosensors may be enzymes, antibodies, living cells and tissue, among others. There are several advantages of biosensors over traditional sensors. Usually, the analyte detection carried out by biosensors can be made without prior separation. In addition, their short response times make possible the real-time monitoring of biological and manufacturing processes. Other advantages include their ease of use, allowing in-field or point-of-care measurements, the flexibility and simplicity of preparation, and the possibility of miniaturization and automatization (Cristea, Hârceagâ, & Sậndulescu, 2014). Miniaturization is of great importance because many biological samples are available in small amounts, and tissue damage must be minimized in cases of in vivo monitoring. The use of biosensors as components of modern medical devices has improved their portability, functionality and reliability for point-of-care analysis and real-time diagnosis (Morrison, Dokmeci, Demirci, & Khademhosseini, 2008).

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Hydrazine treatment improves conductivity of bacterial cellulose/graphene nanocomposites obtained by a novel processing method

Cited by 42 publications

References 56 publications

Bacterial Cellulose—Graphene Based Nanocomposites

Bacterial Cellulose—Graphene Based Nanocomposites

Inserting AgCl@rGO into graphene hydrogel 3D structure: synergy of adsorption and photocatalysis for efficient removal of bisphenol A

Bacterial cellulose‐based biosensors

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