Bum Jun Park
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View article: Charge‐Directed Nanocellulose Assembly for Interfacial Phase‐Transfer Catalysis
Charge‐Directed Nanocellulose Assembly for Interfacial Phase‐Transfer Catalysis Open
Liquid–liquid interfaces present unique opportunities for sustainable biphasic catalysis, yet concurrent amplification of molecular transport and reactivity at these boundaries remains challenging. Here it is demonstrated that high‐aspect‐…
View article: Synthesis of Janus Polydiacetylene Sensor Particles with Thermochromism and Solvatochromism Properties
Synthesis of Janus Polydiacetylene Sensor Particles with Thermochromism and Solvatochromism Properties Open
The first report is presented on the fabrication of anisotropic Janus polydiacetylene (PDA) microparticles with dual colorimetric properties. Spherical proto‐PDA particles are initially created by drying an emulsion containing 10,12‐pentac…
View article: Control of crystal size distribution in continuous cooling crystallization using non-isothermal Taylor vortex
Control of crystal size distribution in continuous cooling crystallization using non-isothermal Taylor vortex Open
A non-isothermal continuous Taylor vortex, which integrates internal heating and cooling processes, has proven to be highly effective in regulating the crystal size distribution through the mechanisms of dissolution and recrystallization o…
View article: Gas‐Shearing Microfluidic Fabrication of Polydiacetylene–Alginate Colorimetric Sensor Beads
Gas‐Shearing Microfluidic Fabrication of Polydiacetylene–Alginate Colorimetric Sensor Beads Open
Polydiacetylenes (PDA) are highly regarded for their unique colorimetric and fluorescent responses, making them ideal for sensor development. Despite their potential, conventional methods for fabricating biocompatible PDA‐encapsulated hydr…
View article: NaClO3 Crystal Growth and Dissolution by Temperature Cycling in a Sessile Droplet
NaClO3 Crystal Growth and Dissolution by Temperature Cycling in a Sessile Droplet Open
Sodium chlorate is the most popular compound used to study spontaneous symmetry breaking by means of crystallization. Therefore, it is important to know the behavior of the solid particles. NaClO3 crystal growth and dissolution are investi…
View article: A single-particle mechanofluorescent sensor
A single-particle mechanofluorescent sensor Open
Monitoring mechanical stresses in microchannels is challenging. Herein, we report the development of a mechanofluorescence sensor system featuring a fluorogenic single polydiacetylene (PDA) particle, fabricated using a co-flow microfluidic…
View article: Optical Laser Tweezer‐Directed Single Particle Solvatochromism of Conjugated Polydiacetylene
Optical Laser Tweezer‐Directed Single Particle Solvatochromism of Conjugated Polydiacetylene Open
Solvatochromism plays a pivotal role in various scientific and technological fields including those that explore molecular interactions, sensing technologies, and organic electronics. Notably, despite their ease of manipulation, direct vis…
View article: CCDC 2265613: Experimental Crystal Structure Determination
CCDC 2265613: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2265615: Experimental Crystal Structure Determination
CCDC 2265615: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2265612: Experimental Crystal Structure Determination
CCDC 2265612: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2265614: Experimental Crystal Structure Determination
CCDC 2265614: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Direct measurements of the colloidal Debye force
Direct measurements of the colloidal Debye force Open
Colloids often behave in a manner similar to their counterparts in molecular space and are used as model systems to understand molecular behavior. Here, we study like-charged colloidal attractions between a permanent dipole on an interfaci…
View article: Fabrication of Partially Etched Polystyrene Nanoparticles
Fabrication of Partially Etched Polystyrene Nanoparticles Open
Non-spherical polymer nanoparticles (NPs) have gained attention in various fields, but their fabrication remains challenging. In this study, we present a simple protocol for synthesizing partially etched polystyrene (PS) nanoparticles thro…
View article: Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst
Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst Open
We represent a copper nanoparticle (CuNPs)-templated chitosan (CS) nanocomposite as an effective catalyst for the catalytic reduction of aqueous hazardous organic micropollutants, which was synthesized via a facile in-situ reduction step o…
View article: Highly Specific Peptide-Mediated Cuvette-Form Localized Surface Plasmon Resonance (LSPR)-Based Fipronil Detection in Egg
Highly Specific Peptide-Mediated Cuvette-Form Localized Surface Plasmon Resonance (LSPR)-Based Fipronil Detection in Egg Open
Herein, we have developed peptide-coated gold nanoparticles (AuNPs) based on localized surface plasmon resonance (LSPR) sensor chips that can detect fipronil with high sensitivity and selectivity. The phage display technique has been explo…
View article: Fabrication of Carbon Disulfide Added Colloidal Gold Colorimetric Sensor for the Rapid and On-Site Detection of Biogenic Amines
Fabrication of Carbon Disulfide Added Colloidal Gold Colorimetric Sensor for the Rapid and On-Site Detection of Biogenic Amines Open
Meat is often wasted due to the perceived concerns of its shelf life and preservation. Specifically, in meat formation, biogenic amines (BAs) are the major agents to spoil them. Herein, we have developed a carbon disulfide (CS2) added coll…
View article: Characteristics of a Multiple-Layered Graphene Oxide Memory Thin Film Transistor with Gold Nanoparticle Embedded as Charging Elements
Characteristics of a Multiple-Layered Graphene Oxide Memory Thin Film Transistor with Gold Nanoparticle Embedded as Charging Elements Open
In this study, we report the highest mobility in the reduced graphene oxide- (rGO-) based TFTs embedded with Au NPs. In addition, we fabricated a reduced graphene oxide memory device (rGO-capacitor), a reduced graphene oxide thin film tran…
View article: Synthesis of Metallic Gold Colored α-Al 2 O 3 Nanoplate-TiO 2 Core-Shell Pigments with Robust and Photo-Stable Smooth TiO 2 Shell
Synthesis of Metallic Gold Colored α-Al 2 O 3 Nanoplate-TiO 2 Core-Shell Pigments with Robust and Photo-Stable Smooth TiO 2 Shell Open
To synthesize non-corrosive metallic gold colored α-Al2O3 nanoplate-TiO2 core-shell pigments with controlled roughness, we systematically checked the morphological variation of the TiO2 shell with the mole ratio of TiCl4 and NaOH from 1 : …
View article: Uniform Ag Nanocubes Prepared by AgCl Particle–Mediated Heterogeneous Nucleation and Disassembly and Their Mechanism Study by DFT Calculation
Uniform Ag Nanocubes Prepared by AgCl Particle–Mediated Heterogeneous Nucleation and Disassembly and Their Mechanism Study by DFT Calculation Open
In the originally published article, the binding energies in Figure S7b and the "binding energy calculation" in the Supporting Information were presented incorrectly.The corrected figure is provided below.The "binding energy calculation" s…
View article: Janus amphiphilic nanoplatelets as smart colloid surfactants with complementary face-to-face interactions
Janus amphiphilic nanoplatelets as smart colloid surfactants with complementary face-to-face interactions Open
A new type of colloidal surfactant that not only has a nanoscale platelet geometry, but can also induce complementary face-to-face interactions among Pickering emulsion droplets is introduced.