Intervention of microfluidics in biofuel and bioenergy sectors: Technological considerations and future prospects

Banerjee, Rintu; Kumar, Sachin; Mehendale, Ninad; Sevda, Surajbhan; Garlapati, Vijay Kumar

doi:10.1016/j.rser.2018.11.040

Cited by 65 publications

(20 citation statements)

References 86 publications

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“…3). The peak at 1054 cm −1 is corresponding to primary amine (C-N stretch) of aromatic compounds and proteins [17]. The peak at 1371 cm −1 could be indexed to C=O stretching of carboxylates [46].…”

Section: Ftir Analysis Of Agnpsmentioning

confidence: 99%

“…The antimicrobial activity of the AgNPs is an important application in the biomedicine and biotherapeutics to prepare medicines, injections, surgical vials, implants and various diagnostic kits [14]. The antioxidant activity of the AgNPs is also an important application in the neutraceutical field to protect the food and food additives from deterioration by oxidation [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Eco-friendly synthesis and evaluation of biological activity of silver nanoparticles from leaf extract of Indigofera barberi Gamble: an endemic plant of Seshachalam Biosphere Reserve

et al. 2019

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The present study reports the simple, rapid and ecofriendly synthesis of silver nanoparticles (AgNPs) using aqueous leaf extract of Indigofera barberi. The aqueous leaf extract of I. barberi reduces the silver ions (Ag+) into AgNPs (silver nanoparticles synthesized from I. barberi leaf extract). Fourier transform infrared spectroscopy analysis showed the broad peaks at 1054, 1371, 1589, 2355, 2933, and 3257 cm −1 which indicated the participation of polyhydroxy compounds and proteins respectively in the biosynthesis and stabilization of AgNPs. TEM analysis showed that the AgNPs synthesized in this study were spherical in shape and having a dimension of 5-20 nm. XRD analysis of AgNPs confirmed the crystalline nature with face centered cubic lattice. Particle size analysis showed that AgNPs were 2-10 nm in size with average hydrodynamic radius of 3.4 nm. Zeta potential value of the AgNPs was found to be − 13.3 mV. AgNPs showed effective antimicrobial activity against both Gram−ve and Gram+ve bacteria. AgNPs showed effective antioxidant activity by quenching DPPH and H 2 O 2 radicals with IC-50 values of 67.37 and 72.04 µg/mL, respectively.

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Section: Ftir Analysis Of Agnpsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Eco-friendly synthesis and evaluation of biological activity of silver nanoparticles from leaf extract of Indigofera barberi Gamble: an endemic plant of Seshachalam Biosphere Reserve

et al. 2019

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“…Microfluidic devices are miniaturized fluid handling systems, regulating small amount of fluids travelling through networks consisting of tiny channels with diameter typically ranging from tens to hundreds of micrometers . Microfluidic systems require small volumes of reagents and render fast response due to their increased surface area and shortened diffusion paths, so in a vision, they promise to offer cheaper and faster equipment capable of most chemical and biological analysis while saving time and footprints . However, before that, challenges more than simply scaling down conventional equipment are presented, and among those the efficient regulation of the motion of microfluidic flows is listed.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7] Microfluidic systems require small volumes of reagents and render fast response due to their increased surface area and shortened diffusion paths, so in a vision, they promise to offer cheaper and faster equipment capable of most chemical and biological analysis while saving time and footprints. [8][9][10][11][12][13][14][15] However, before that, challenges more than simply scaling down conventional equipment are presented, and among those the efficient regulation of the motion of microfluidic flows is listed.…”

Section: Introductionmentioning

confidence: 99%

Inner Surface Design of Functional Microchannels for Microscale Flow Control

Wang

Yang

et al. 2019

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Fluidic flow behaviors in microfluidics are dominated by the interfaces created between the fluids and the inner surface walls of microchannels. Microchannel inner surface designs, including the surface chemical modification, and the construction of micro‐/nanostructures, are good examples of manipulating those interfaces between liquids and surfaces through tuning the chemical and physical properties of the inner walls of the microchannel. Therefore, the microchannel inner surface design plays critical roles in regulating microflows to enhance the capabilities of microfluidic systems for various applications. Most recently, the rapid progresses in micro‐/nanofabrication technologies and fundamental materials have also made it possible to integrate increasingly complex chemical and physical surface modification strategies with the preparation of microchannels in microfluidics. Besides, a wave of researches focusing on the ideas of using liquids as dynamic surface materials is identified, and the unique characteristics endowed with liquid–liquid interfaces have revealed that the interesting phenomena can extend the scope of interfacial interactions determining microflow behaviors. This review extensively discusses the microchannel inner surface designs for microflow control, especially evaluates them from the perspectives of the interfaces resulting from the inner surface designs. In addition, prospective opportunities for the development of surface designs of microchannels, and their applications are provided with the potential to attract scientific interest in areas related to the rapid development and applications of various microchannel systems.

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“…Although this process has been widely studied, recent developments allow a continuous process that reduces the reaction time and the amount of catalyst and alcohol required. The intensification of transesterification aims to make the process more economical, fast and safe [1]. The application of a microreactor for the transesterification process has gained attention owing to several advantages: the large surface-area-to-volume ratio, safety from potentially explosive reactions, point-of-use production, and good control of high exothermicity [2].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Interfacial Area on Liquid-liquid Multiphase Flow of Transesterification Process in Cross-junction Microchannel Reactor

KuShaari

Laziz

Hamid

2019

J. Eng. Technol. Sci.

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The key advantage of microfluidic technology in chemical processing is the high interfacial area, which is especially important in multiphase reactions. Multiphase reactions such as transesterification of vegetable oil and methanol to produce biodiesel are largely dependent on the interfacial area for better mass transfer. However, little attention has been given to the hydrodynamic factor, which affects the interfacial area in the microchannel. In this study, the interfacial area from the droplet flow regime was studied by varying three parameters: methanol to oil ratio (M/O), total flow rate (Q Total ), and catalyst concentration. The droplet flow was created by a cross-junction channel and photos were made to measure the size of the droplets with the help of a microscope. The maximum M/O ratio (23) and the lowest flow rate (10 μL/min) exhibited the highest interfacial area, where increasing the M/O by 67% could increase the interfacial area by 23%. By varying the KOH catalyst concentration, the change in the interfacial area was very small, thus having the lowest impact on the interfacial area of the droplet. Further analysis must be performed to investigate the impact of interfacial area and mass transfer coefficient on reaction performance in producing the highest yield of biodiesel in a microchannel reactor.

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Intervention of microfluidics in biofuel and bioenergy sectors: Technological considerations and future prospects

Cited by 65 publications

References 86 publications

Eco-friendly synthesis and evaluation of biological activity of silver nanoparticles from leaf extract of Indigofera barberi Gamble: an endemic plant of Seshachalam Biosphere Reserve

Eco-friendly synthesis and evaluation of biological activity of silver nanoparticles from leaf extract of Indigofera barberi Gamble: an endemic plant of Seshachalam Biosphere Reserve

Inner Surface Design of Functional Microchannels for Microscale Flow Control

Quantitative Analysis of Interfacial Area on Liquid-liquid Multiphase Flow of Transesterification Process in Cross-junction Microchannel Reactor

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