| 첨부 '1' |
|---|
| author | Kwang Seob Jeong |
|---|---|
| journal | The Journal of Physical Chemistry Letters |
| Homepage | https://kwangsjeong.wixsite.com/ksjlab-koreauniv |
Realizing bright colloidal infrared emitters in the midwavelength infrared (or mid-IR), which can be used for low-power IR light-emitting diodes (LEDs), sensors, and deep-tissue imaging, has been a challenge for the last few decades. Here, we present colloidal tellurium nanowires with strong emission intensity at room temperature and even lasing at 3.6 μm (ω) under cryotemperature. Furthermore, the second-harmonic field at 1.8 μm (2ω) and the third-harmonic field at 1.2 μm (3ω) are successfully generated thanks to the intrinsic property of the tellurium nanowire. These unique optical features have never been reported for colloidal tellurium nanocrystals. With the colloidal midwavelength infrared (MWIR) Te nanowire laser, we demonstrate its potential in biomedical applications. MWIR lasing has been clearly observed from nanowires embedded in a human neuroblastoma cell, which could further realize deep-tissue imaging and thermotherapy in the near future.
https://pubs.acs.org/doi/10.1021/acs.jpclett.1c04154
Prev DNA-Damage-Response-Targeting Mitochondria-Activated Multifunctional Prodrug Strategy for Self-Defensive Tumor Therapy
DNA-Damage-Response-Targeting Mitochondria-Activated Multifunctional Prodrug Strategy for Self-Defensive Tumor Therapy
2022.03.11by 관리자
Kinetic Modulation of Amyloid-β (1–42) Aggregation and Toxici... Next
Kinetic Modulation of Amyloid-β (1–42) Aggregation and Toxici...
2022.01.25by
Kinetic Modulation of Amyloid-β (1–42) Aggregation and Toxici...
2022.01.25by
-
Read More
Midwavelength Infrared Colloidal Nanowire Laser
Realizing bright colloidal infrared emitters in the midwavelength infrared (or mid-IR), which can be used for low-power IR light-emitting diodes (LEDs), sensors, and deep-tissue imaging, has been a challenge for the last few decades. Here, ... -
Read More
Kinetic Modulation of Amyloid-β (1–42) Aggregation and Toxicity by Structure-Based Rational Design
임동준 (제1저자, 통합과정생) Several point mutations can modulate protein structure and dynamics, leading to different natures. Especially in the case of amyloidogenic proteins closely related to neurodegenerative diseases, structural chang... -
Read More
Safeguarding the RuO2 phase against lattice oxygen oxidation during acidic water electrooxidation
Defective RuO2 possesses excellent initial activity toward the oxygen evolution reaction in acidic water electrooxidation due to the involvement of lattice oxygens, which, however, is the very reason for the accelerated dissolution of Ru sp... -
Read More
Mn-dopant differentiating the Ru and Ir oxidation states in catalytic oxides toward durable oxygen evolution reaction in acidic electrolyte
Designing an efficient and durable electrocatalyst for the sluggish oxygen evolution reaction (OER) at the anode remains the foremost challenge in developing proton exchange membrane (PEM) electrolyzers. Here we report a highly active and d... -
Read More
Dynamic Water Promotes Lithium-Ion Transport in Superconcentrated and Eutectic Aqueous Electrolytes
김준규(제1저자, 통합과정) Superconcentrated aqueous electrolytes have shown promise as safe and high-voltage lithium-ion battery (LIB) electrolytes. However, the interplay of lithium-ion solvation structure and dynamics with fast Li-ion tra... -
Read More
Isomeric sp2-C conjugated Porous Organic Polymer-mediated Photo- and Sono-catalytic Detoxification of Sulfur Mustard Simulant under Ambient Conditions
The development of efficient strategies for the sustainable detoxification of mustard gas simulants has longstanding demand for human safety. Here, we present for the first time a photo- and sono-catalyzed selective detoxification of mustar... -
Read More
Vertical-crystalline Fe-doped β-Ni oxyhydroxides for highly active and stable oxygen evolution reaction
김병윤 (제1저자, 기초과학연구원) The layered transition metal oxyhydroxides have received increasing interest owing to the efficient energy conversion performance and material stability during the oxygen evolution reaction (OER). In particu... -
Read More
Extended Short-Wavelength Infrared Photoluminescence and Photocurrent of Nonstoichiometric Silver Telluride Colloidal Nanocrystals
김가현(제1저자, 석박통합과정) Demands on nontoxic nanomaterials in the short-wavelength infrared (SWIR) have rapidly grown over the past decade. Here, we present the nonstoichiometric silver chalcogenide nanocrystals of AgxTe (x > 2) and Ag... -
Read More
Enhanced Thermopower of Saturated Molecules by Noncovalent Anchor-Induced Electron Doping of Single-Layer Graphene Electrode
Enhancing thermopower is a key goal in organic and molecular thermoelectrics. Herein, it is shown that introducing noncovalent contact with a single-layer graphene (SLG) electrode improves the thermopower of saturated molecules as compared ... -
Read More
Mechanical Force for the Transformation of Aziridine into Imine
Force-selective mechanochemical reactions may be important for applications in polymer mechanochemistry, yet it is difficult to achieve such reactions. This paper reports that cis-N-phthalimidoaziridine incorporated into a macromolecular ba... -
Read More
A Small Molecule Strategy for Targeting Cancer Stem Cells in Hypoxic Microenvironments and Preventing Tumorigenesis
김지현(제1저자, 석박사통합과정 8학기) Breast cancer consists of heterogenic subpopulations, which determine the prognosis and response to chemotherapy. Among these subpopulations, a very limited number of cancer cells are particularly probl... -
Read More
Mitochondria-targeted nanotheranostic: Harnessing single-laser-activated dual phototherapeutic processing for hypoxic tumor treatment
Realizing maximum tumor suppression along with preventing tumor regrowth by optimizing the photon usage in phototherapy remains a major challenge. Herein, a mitochondria-targeted phototheranostic nanoformulation (MsPDTT NPs) was prepared fr... -
Read More
Pd3Pb Nanosponges for Selective Conversion of Furfural to Furfuryl Alcohol under Mild Condition
Alloy structures with high catalytic surface areas and tunable surface energies can lead to high catalytic selectivity and activities. Herein, the synthesis of sponge-like Pd3Pb multiframes (Pd3Pb MFs) is reported by using the thermodynamic... -
Read More
Deep Learning Optical Spectroscopy Based on Experimental Database: Potential Applications to Molecular Design
Accurate and reliable prediction of the optical and photophysical properties of organic compounds is important in various research fields. Here, we developed deep learning (DL) optical spectroscopy using a DL model and experimental database... -
Read More
Wettability of graphene and interfacial water structure
김동환(제1저자,석사과정) 김은찬(제1저자, 통합과정) Understanding the wettability of graphene is important for various applications, such as water desalination, energy storage, and catalysis. However, the detailed water hydrogen-bonding stru... -
Read More
Synergistic Effects on Lithium Metal Batteries by Preferential Ionic Interactions in Concentrated Bisalt Electrolytes
전소연 (제1저자, 박사과정) Lithium metal batteries (LMBs) have the potential to deliver a greater specific capacity than any commercially used lithium battery. However, excessive dendrite growth and low Coulombic efficiencies (CEs) are majo... -
Read More
Operando Raman and UV-Vis spectroscopic investigation of the coloring and bleaching mechanism of self-powered photochromic devices for smart windows
전소연 (제1저자, 박사과정) Automatically controlling the optical transmittance of solar light provides an energy-saving strategy for designing energy-efficient buildings. Ideally, the smart windows should be able to show homogeneous and lar... -
Read More
Ultrafast intraband Auger process in self-doped colloidal quantum dots
임준형 (제 1저자) Investigating the separate dynamics of electrons and holes has been challenging, although it is critical for the fundamental understanding of semiconducting nanomaterials. n-Type self-doped colloidal quantum dots (CQDs) wi... -
Read More
Two-dimensional electronic spectroscopy of bacteriochlorophyll a with synchronized dual mode-locked lasers
How atoms and electrons in a molecule move during a chemical reaction and how rapidly energy is transferred to or from the surroundings can be studied with flashes of laser light. However, despite prolonged efforts to develop various coheren... -
Read More
Superexchange Coupling-Induced Enhancements of Thermoelectric Performance in Saturated Molecules
조나영 강서현 (공동 제1저자) To develop thermoelectric devices, it is of the utmost importance to design organic building blocks to have efficient thermopower. Whereas conjugated and aromatic molecules with intrinsic narrow band gaps are at...