Explanipedia

Multiphasic size-dependent growth dynamics of nanoparticle ensembles Open

Ji‐Hyun Kim, Joodeok Kim, Byung Hyo Kim, Sanggeun Song, Jingyu Kang , et al. · 2025

Colloidal nanoparticles are of great interest in modern science and industry. However, the thermodynamic mechanism and dynamics of nanoparticle growth have yet to be understood. Addressing these issues, we tracked hundreds of in-situ growt…

Metabolism‐inspired chemical reaction networks for chemically driven dissipative oligoesterification Open

Yeonsoo Lim, Gyunam Park, Hongyu An, Jonghwa Han, Joonhyun Bae , et al. · 2025

Metabolism is a complex network of chemical reactions in which transient biomolecules are continuously produced and degraded. Mimicking this dynamic process in synthetic systems poses a considerable challenge, as it requires designs that e…

Supersaturation, Nucleation, and Phase Separation of Mesoscopic Materials Open

Jingyu Kang, Donghee Kim, Sanggeun Song, Jonghwa Han, Yongwon Jung , et al. · 2025

Supersaturation, nucleation, and phase separation are ubiquitous phenomena of great interest in both science and industry. However, a unified, quantitative understanding of these phenomena has yet to be achieved for mesoscopic materials. H…

In-Situ Nitriding of Coti Powders for Tin Shell Formation Via Diffusion-Controlled Mechanism Open

Ammad Ali, Kee-Ryung Park, Muhammad Aneeq Haq, Jaeyoung Sung, Da‐Woon Jeong , et al. · 2025

Multiphasic size-dependent growth dynamics of nanoparticle ensembles Open

Ji‐Hyun Kim, Joodeok Kim, Byung Hyo Kim, Sanggeun Song, Hoje Chun , et al. · 2024

Colloidal nanoparticles are of great interest in modern science and industry. However, thermodynamic mechanism and dynamics of nanoparticle growth have yet to be understood. Addressing these issues, we tracked hundreds of in-situ growth tr…

Real-Time Tracking of Vesicles in Living Cells Reveals That Tau-Hyperphosphorylation Suppresses Unidirectional Transport by Motor Proteins Open

Eunsang Lee, Dong Hee Kim, Yo Han Song, Kyujin Shin, Sanggeun Song , et al. · 2024

Synaptic vesicle transport by motor proteins along microtubules is a crucially active process underlying neuronal communication. It is known that microtubules are destabilized by tau-hyperphosphorylation, which causes tau proteins to detac…

Thermodynamic Principles governing Supersaturation, Nucleus Seed Formation, and Crystallization Open

Sanggeun Song, Donghee Kim, Jingyu Kang, Jonghwa Han, Byung Hyo Kim , et al. · 2024

Supersaturation and nucleus seed formation are universal processes that precede all phase transitions. Despite extensive research on nucleation, thermodynamic equations governing supersaturation, formation of nucleus seeds and their crysta…

Thermodynamic Origin of Nuclei Seed Formation and Monomer Supply Rate-Dependent Crystallization Dynamics Open

Sanggeun Song, Donghee Kim, Jingyu Kang, Jonghwa Han, Byung Hyo Kim , et al. · 2024

Supersaturation and nucleus seed formation are universal processes that precede all phase transitions. Despite extensive research on nucleation, our understanding on supersaturation, nucleus seed formation and phase transition dynamics rem…

Circuit-guided population acclimation of a synthetic microbial consortium for improved biochemical production Open

Chae Won Kang, Hyun Gyu Lim, Jaehyuk Won, Sanghak Cha, Giyoung Shin , et al. · 2022

Multiphasic growth dynamics of nanoparticle ensembles Open

Ji‐Hyun Kim, Joodeok Kim, Byung Hyo Kim, Sanggeun Song, Hoje Chun , et al. · 2022

Colloidal nanoparticles are of great interest in modern science and industry, yet the thermodynamic origin of nanoparticle formation remains a mystery and nanoparticle growth frequently exhibits nonclassical dynamics. Here, we tracked hund…

Non‐steady‐state enzyme reaction dynamics Open

Kyungwoo Kim, Sanggeun Song, Jaeyoung Sung · 2022

Michaelis–Menten (MM) enzyme kinetics is and has been widely used since early 20th century. However, the conventional enzyme kinetics is not accurate when the substrate is not in excess or when the steady‐state approximation does not hold.…

Real-space imaging of nanoparticle transport and interaction dynamics by graphene liquid cell TEM Open

Sungsu Kang, Ji‐Hyun Kim, Minyoung Lee, Ji Woong Yu, Joodeok Kim , et al. · 2021

Thermal motion and interactions of sub–4-nm particles are directly observed by graphene liquid cell electron microscopy.

Physical and Electrical Analysis of Poly-Si Channel Effect on SONOS Flash Memory Open

Jun-Kyo Jeong, Jaeyoung Sung, Woon-San Ko, Ki-Ryung Nam, Hi‐Deok Lee , et al. · 2021

In this study, polycrystalline silicon (poly-Si) is applied to silicon-oxide-nitride-oxide-silicon (SONOS) flash memory as a channel material and the physical and electrical characteristics are analyzed. The results show that the surface r…

High Pressure Deuterium Passivation of Charge Trapping Layer for Nonvolatile Memory Applications Open

Jaeyoung Sung, Jun-Kyo Jeong, Woon-San Ko, Jun-Ho Byun, Hi‐Deok Lee , et al. · 2021

In this study, the deuterium passivation effect of silicon nitride (Si3N4) on data retention characteristics is investigated in a Metal-Nitride-Oxide-Silicon (MNOS) memory device. To focus on trap passivation in Si3N4 as a charge trapping …

Stochastic Kinetics of Nanocatalytic Systems Open

Jingyu Kang, Seong Jun Park, Ji‐Hyun Kim, Peng Chen, Jaeyoung Sung · 2021

Catalytic reaction events occurring on the surface of a nanoparticle constitute a complex stochastic process. Although advances in modern single-molecule experiments enable direct measurements of individual catalytic turnover events occurr…

Super-Gaussian, superdiffusive transport of multimode active matter Open

Seungsoo Hahn, Sanggeun Song, Gil‐Suk Yang, Jingyu Kang, Kang Taek Lee , et al. · 2020

Living matter often exhibits multimode transport that switches between an active, self-propelled motion and a seemingly passive, random motion. Here, we investigate an exactly solvable model of multimode active matter, such as living cells…

Chemical Dynamics in Living Cells Open

Jaeyoung Sung · 2020

Frequency Spectrum of Chemical Fluctuation: A Probe of Reaction Mechanism and Dynamics Open

Sanggeun Song, Gil‐Suk Yang, Seong Jun Park, Sungguan Hong, Ji‐Hyun Kim , et al. · 2020

Intracellular Transport Dynamics of Upconverting Nanoparticles in Living Cells Open

Kyujin Shin, Sanggeun Song, Yo Han Song, Seungsoo Hahn, Ji‐Hyun Kim , et al. · 2020

Age-Dependent Protein Degradation Modulates Noise of Autoregulated Gene Expression Open

Ji‐Hyun Kim, Jaeyoung Sung · 2020

Frequency spectrum of chemical fluctuation: A probe of reaction mechanism and dynamics Open

Sanggeun Song, Gil‐Suk Yang, Seong Jun Park, Sungguan Hong, Ji‐Hyun Kim , et al. · 2019

Even in the steady-state, the number of biomolecules in living cells fluctuates dynamically, and the frequency spectrum of this chemical fluctuation carries valuable information about the dynamics of the reactions creating these biomolecul…

Transport dynamics of complex fluids Open

Sanggeun Song, Seong Jun Park, Minjung Kim, Jun Soo Kim, Bong June Sung , et al. · 2019

Significance Many disordered fluid systems exhibit anomalous transport dynamics, which do not obey Einstein's theory of Brownian motion or other currently available theories. Here, we present a new transport equation governing thermal moti…

Product number counting statistics from stochastic bursting birth-death processes Open

Seong Jun Park, Jaeyoung Sung · 2019

Bursting and non-renewal processes are common phenomena in birth-death process, yet no theory can quantitatively describe a non-renewal birth process with bursting. Here, we present a theoretical model that yields the product number counti…

Frequency spectrum of biological noise: a probe of reaction dynamics in living cells Open

Sanggeun Song, Gil‐Suk Yang, Seong Jun Park, Ji‐Hyun Kim, Jaeyoung Sung · 2018

Even in the steady-state, the number of biomolecules in living cells fluctuates dynamically; and the frequency spectrum of this chemical fluctuation carries valuable information about the mechanism and the dynamics of the intracellular rea…

Universal Transport Dynamics of Complex Fluids: Effects of Intrinsic and Extrinsic Disorder Open

Sanggeun Song, Seong Jun Park, Bong June Sung, Jun Soo Kim, Jihyun Kim , et al. · 2018

We present a general theory of thermal motion in disordered fluids, introducing a new type of random walk model with a sojourn time distribution dependent on hidden variables. This model encompasses Montroll and Weiss's continuous-time ran…

Chemical Fluctuation Theorem Governing Vibrant Reaction Networks in Living Cells Open

Jaeyoung Sung · 2018

The Chemical Fluctuation Theorem governing gene expression Open

Seong Jun Park, Sanggeun Song, Gil‐Suk Yang, Philip M. Kim, Sangwoon Yoon , et al. · 2018

RecA filament maintains structural integrity using ATP-driven internal dynamics Open

Sung Hyun Kim, TakKyoon Ahn, Tao Cui, Sweeny Chauhan, Jaeyoung Sung , et al. · 2017

Sequence-dependent internal reorganization of the RecA filament maintains its structural integrity.

Comment on “Nonrenewal Statistics in the Catalytic Activity of Enzyme Molecules at Mesoscopic Concentrations” Open

In-Chun Jeong, Sanggeun Song, Daehyun Kim, Seong Jun Park, Ji‐Hyun Kim , et al. · 2017

It is well known in enzyme kinetics that the Michaelis-Menten (MM) equation is applicable only to enzymes in the steady state. We show that the result obtained in the previous work [Phys. Rev. Lett. 107, 218301 (2011)] is inconsistent with…

Effect of the Shape of a Guide Grill Above a Resonance Type Sound Absorbing Panel on Intake Flow into a Resonator Open

Hyunwoo Bae, Jaeyoung Sung, Dong Hoon Lee · 2016

This study investigates cavity flows through a guide grill above a resonator. Vortex distributions and intake flows are simulated for various shapes of the guide grill. The flows are assumed to be compressible, unsteady, and turbulent. Num…

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