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Seongjin Lim

Bio: Seongjin Lim is an academic researcher from KAIST. The author has contributed to research in topics: Multiplexing & Epidermal growth factor. The author has an hindex of 9, co-authored 16 publications receiving 511 citations.

Papers
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TL;DR: Acidogenesis of food waste was studied in a 2-L reactor with semi-continuous mode operation (once-a-day feeding and draw-off) for maximum 65 days to examine optimal volatile acid compositions for biological nitrogen removal (BNR) and enhanced biological phosphorus removal (ENPR).

257 citations

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TL;DR: Methods of fabrication for microfluidic assays and inducing factors for vascularization are reviewed and applications using engineered vasculature such as in vitro vascular disease models, vasculatures in organ-on-chips and drug screening platforms are discussed.
Abstract: Vascularization, the formation of new blood vessels, is an essential biological process. As the vasculature is involved in various fundamental physiological phenomena and closely related to several human diseases, it is imperative that substantial research is conducted on characterizing the vasculature and its related diseases. A significant evolution has been made to describe the vascularization process so that in vitro recapitulation of vascularization is possible. The current microfluidic systems allow elaborative research on the effects of various cues for vascularization, and furthermore, in vitro technologies have a great potential for being applied to the vascular disease models for studying pathological events and developing drug screening platforms. Here, we review methods of fabrication for microfluidic assays and inducing factors for vascularization. We also discuss applications using engineered vasculature such as in vitro vascular disease models, vasculature in organ-on-chips and drug screening platforms.

120 citations

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TL;DR: In this paper, the authors demonstrate an intrinsically stretchable multi-functional hollow fiber capable of harvesting mechanical energy and detecting strain, which is used as a strain sensor for wearable electronic applications.

72 citations

Journal ArticleDOI
Seongjin Lim1, Dong Won Choi1, Woo Gi Lee1, S Kwon1, Ho Nam Chang1 
TL;DR: In this paper, Korean food wastes were anaerobically digested to produce volatile fatty acids (VFA) that can be used as a carbon source in biological nutrient removal in a sequential batch reactor (SBR).
Abstract: Korean food wastes were anaerobically digested to produce volatile fatty acids (VFA) that can be used as a carbon source in biological nutrient removal in a sequential batch reactor (SBR). Acetate, propionate and butyrate were produced at a yield of 379–400 g VFA/kg VS0 (initial volatile solids). The ratio of SCOD (Soluble Chemical Oxygen Demand) of VFA to ammonia nitrogen (N) was in the range of 36.2–36.5 and the ratio of SCOD to phosphorus was between 151 and 162. The removal rate of nitrogen and phosphorus improved from 44% and 37% to 92% and 73%, respectively when the VFA were added to the influent of the Taejon municipal wastewater plant. The concentration of nitrogen and phosphorus were maintained below 3 mg/l and 1 mg/l, respectively. The N- and P-content of the food waste was low enough not to influence the final N- and P-concentrations of the wastewater.

57 citations

Journal ArticleDOI
TL;DR: In this article, a model of the operation of a sequential batch reactor (SBR) was performed to find out optimum design parameters for simultaneous removal of nitrogen and phosphorus in a small-scale wastewater treatment plant.
Abstract: Modeling of the operation of sequential batch reactor (SBR) was performed to find out optimum design parameters for simultaneous removal of nitrogen and phosphorus in a small-scale wastewater treatment plant. The models were set up with material balances on SBR operation and Monod kinetics. The model parameters were obtained to best fit the experimental results in a small scale SBR. The models were useful in optimizing hydraulic retention time (HRT) and successfully simulated operations of SBR in a larger scale. Especially the model predicted well the reactions occurring in the filling period as well as the effect of dilution, and evaluated the performance of SBR process under diverse operating conditions.

48 citations


Cited by
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Journal ArticleDOI
TL;DR: Recent progress in electronic skin or e‐skin research is broadly reviewed, focusing on technologies needed in three main applications: skin‐attachable electronics, robotics, and prosthetics.
Abstract: Recent progress in electronic skin or e-skin research is broadly reviewed, focusing on technologies needed in three main applications: skin-attachable electronics, robotics, and prosthetics. First, since e-skin will be exposed to prolonged stresses of various kinds and needs to be conformally adhered to irregularly shaped surfaces, materials with intrinsic stretchability and self-healing properties are of great importance. Second, tactile sensing capability such as the detection of pressure, strain, slip, force vector, and temperature are important for health monitoring in skin attachable devices, and to enable object manipulation and detection of surrounding environment for robotics and prosthetics. For skin attachable devices, chemical and electrophysiological sensing and wireless signal communication are of high significance to fully gauge the state of health of users and to ensure user comfort. For robotics and prosthetics, large-area integration on 3D surfaces in a facile and scalable manner is critical. Furthermore, new signal processing strategies using neuromorphic devices are needed to efficiently process tactile information in a parallel and low power manner. For prosthetics, neural interfacing electrodes are of high importance. These topics are discussed, focusing on progress, current challenges, and future prospects.

881 citations

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TL;DR: In this article, a review of the potential of dark fermentation of organic biomasses and its potential in green energy-efficient green chemistry applications is presented, with a brief review on the simulation and modeling of the dark fermentation processes and their energy balance.

711 citations

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TL;DR: In this paper, the authors reviewed the various wastes amenable to VFA production, the pertinent factors influencing the VFO production, and the various applications of the resulting VFA.

663 citations

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TL;DR: The results showed that food waste hydrolysis increased obviously when Inoculum AN was used relative to Inocula AE at any pH investigated, and uncontrolled pH was higher than that at other pHs when either inoculum was used.

447 citations

Journal ArticleDOI
Jianguo Jiang1, Yujing Zhang1, Kaimin Li1, Quan Wang1, Changxiu Gong1, Menglu Li1 
TL;DR: The effects of pH, temperature, and organic loading rate (OLR) on the acidogenesis of food waste have been determined and the percentage of acetate and valerate increased as OLR increased, whereas a high OLR produced a lower percentage of propionate and butyrate.

438 citations