Article
Chemistry, Physical
Emre Alp, Rizvan Imamoglu, Umut Savaci, Servet Turan, M. Kursat Kazmanli, Aziz Genc
Summary: Hematite nanoparticles with gold decoration showed enhanced photocatalytic efficiency and antibacterial effect, making them promising for wastewater treatment applications. The morphological features of hematite nanostructures were modified to achieve a 25% increase in photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yuegang Shen, Yangsi Liu, Xiaoli Xi, Zuoren Nie
Summary: In this study, a novel W03 center dot 0.33H(2)O/g-C3N4 nanocomposite photocatalyst was designed and constructed, which exhibited excellent adsorption and photocatalytic performance, surpassing pure WO3 center dot 0.33H(2)O and g-C3N4 by a large margin.
Article
Chemistry, Multidisciplinary
Mathieu Grandcolas, Eloise Oudin
Summary: Photocatalytic membrane reactors are efficient for treating polluted waters, but the unilateral irradiation of the membrane is a major drawback. To overcome this issue, a reactor that can irradiate the membrane on both sides was developed. The results showed that the use of both sides of the photocatalytic membrane significantly enhanced the decolorization of methylene blue in water.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Surinder K. Brar, Sanjeev Kumar, Aman K. K. Bhasin, K. K. Bhasin, Rohit K. Sharma
Summary: The research on self-assembled structures of selenide derivatives has demonstrated good adsorption capacity and potential application in water treatment.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Farid Orudzhev, Dinara Sobola, Shikhgasan Ramazanov, Klara Castkova, Nikola Papez, Daud A. Selimov, Magomed Abdurakhmanov, Abdulatip Shuaibov, Alina Rabadanova, Rashid Gulakhmedov, Vladimir Holcman
Summary: The synthesis of hybrid polymer-inorganic nanocomposite fiber membranes based on PVDF and BFO can effectively solve the problem of decomposing organic dyes with high efficiency by combining the advantages of photoactive piezoelectric nanomaterials and ferroelectric polymers, collecting mechanical vibrations and light energy.
Article
Environmental Sciences
Sandeep Kumar Jena, Rajkumar Sadasivam, Gopinath Packirisamy, Pichiah Saravanan
Summary: This study demonstrated the development of PAN/CuO-ZnO nanocomposites with excellent photocatalytic properties through hydrothermal and calcination methods. The nanocomposites obtained through calcination exhibited better optical response and robust electronic structures, leading to higher photocatalytic efficiency.
ENVIRONMENTAL POLLUTION
(2021)
Article
Physics, Applied
Arjun Dahal
Summary: Due to their large surface área and novel electronic properties, tungsten disulfide (WS2) nanosheets are promising for photocatalysis applications. Liquid phase exfoliation method has been proven to be a feasible technique for fabricating WS2 nanosheets. In this study, we optimize the fabrication of WS2 nanosheets by exfoliating the WS2 powder in isopropyl alcohol using probe sonicator and ball milling method. The results show that prolonged sonication produces a high concentration of 0.64 mg/ml, and the same concentration can be obtained in less time if the bulk powder is ball milled prior to sonication. Atomic force microscopy reveals that the proportions of monolayers and bilayers can be increased by centrifugation at a higher speed or longer sonication. Photodegradation measurements show that the photocatalytic activity of WS2 can be enhanced if it is reduced to nanosheets.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Applied
Wanli Lu, Chao Duan, Yanling Zhang, Kun Gao, Lei Dai, Mengxia Shen, Wenliang Wang, Jian Wang, Yonghao Ni
Summary: In this study, a cellulose-based photocatalytic ENM was successfully developed for efficient removal of oils, dyes, and chromium ion from wastewater. The core-sheath structured ENM showed outstanding performance with simultaneous high removal efficiency, and it also exhibited long-term reusability due to its self-cleaning function.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Caroline Ponraj, P. Santhosh Kumar, Sumit Sarkar, C. Krishnamoorthi, N. Manikandan, G. Vinitha, Joseph Daniel
Summary: Photocatalysis is a research hot topic due to its wide applications in environmental remediation and renewable energy. This study reports the synthesis and activity of magnetic BiFe1-xCoxO3 (x = 0, 0.025, 0.05, 0.075 & 0.10) photocatalysts under visible light irradiation. The results show that increasing dopant concentration leads to decreasing crystallite size, decreasing bandgap, increasing magnetic behavior, and enhanced photocatalytic activity.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Applied
Adnan Ahmad, Muhammad Amir Khan, Ahsan Nazir, Salman Noshear Arshad, Muhammad Bilal Qadir, Zubair Khaliq, Zuhair Subhani Khan, Aamir Naseem Satti, Bushra Mushtaq, Amir Shahzad
Summary: Metal-oxide based nanostructures with mixed phases and high specific surface area, such as TiO2NF@NT, exhibit excellent performance in photo-degradation applications, especially under UV-light irradiation. The mixed-phase triaxial multifunctional structures could find wide applications in various fields.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Velu Venugopal, Dhandapani Balaji, Mani Preeyanghaa, Cheol Joo Moon, Bernaurdshaw Neppolian, Govarthanan Muthusamy, Jayaraman Theerthagiri, Jagannathan Madhavan, Myong Yong Choi
Summary: Researchers have developed a facile and scalable synthesis method for a BiFeO3/CeVO4 nanocomposite catalyst, which exhibits efficient photocatalytic degradation of the organic pollutant rhodamine B under visible light.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Qiuhui Zhu, Ke Zhang, Danqing Li, Nan Li, Jingkun Xu, Detlef W. Bahnemann, Chuanyi Wang
Summary: Non-centrosymmetric (NCS) based photocatalytic materials, including piezoelectrics, pyroelectrics, ferroelectrics, and nonlinear optical materials, have built-in electric field resultant polarization which can significantly improve the photocatalytic performance. This article reviews the recent advances in NCS materials and systematically summarizes the correlation of their polarization-related physical properties with their photocatalytic activities.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Mahdiyeh-Sadat Hosseini, Alireza Abbasi, Majid Masteri-Farahani
Summary: A new cost-effective photocatalyst was prepared by modifying NH2-UiO-66 with Fe(acac)3 complex to enhance optical properties and charge separation efficiency, leading to significant removal of organic dyes and tetracycline in water pollutants. The introduction of Fe(acac)3 into the structure improved light absorption and electron-hole carrier separation, resulting in efficient degradation of pollutants. The photocatalyst exhibited stability and reusability during the photo-Fenton reaction, showing potential for practical applications in water treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alexander Cordoba, Cesar Saldias, Marcela Urzua, Marco Montalti, Moreno Guernelli, Maria Letizia Focarete, Angel Leiva
Summary: This translation excerpt introduces various materials, strategies, and methods proposed to tackle wastewater pollution. It emphasizes the innovative approach of using hybrid materials made of polymeric nanofibers and photocatalytic nanoparticles. The crucial role of polymeric nanofibers and their versatility in pollutant degradation processes is highlighted.
Article
Chemistry, Physical
Thanh Luan Nguyen, Thi Huong Pham, Yusik Myung, Sung Hoon Jung, Man Hieu Tran, Mitesh G. Mapari, Quyet Van Le, Minh Viet Nguyen, Thi Thu Hien Chu, Taeyoung Kim
Summary: In this study, TiO2 coated carbon fiber (TiO2@CF) was synthesized and used as a photocatalyst for hydrogen generation. The TiO2@CF showed improved photocatalytic performance due to its narrowed bandgap energy and minimized recombination of photogenerated electron-hole pairs. The hydrogen production rate by TiO2@CF was significantly higher compared to unmodified TiO2. Additionally, TiO2@CF demonstrated good stability and reusability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Kyeong Rak Kim, Jeonga Kim, Jin Woong Kim, Cafer T. Yavuz, Moon Young Yang, Yoon Sung Nam
Summary: This study introduces a new photochemical route for the selective and efficient adsorption of gold ions using bio-inspired metal-philic coatings. The polydopamine layer on the mesoporous polymer microspheres serves as a selective photo-active reductant to reduce gold ions to metallic gold nuclei, with localized surface plasmon further enhancing the reduction process. The combination of photochemical activation and polyphenol chemistry dramatically increases the maximum adsorption capacity and selectivity for gold ions, showing promise for urban mining of novel metal ions from electronic wastes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Bon Il Koo, Inhye Kim, Moon Young Yang, Sung Duk Jo, Kunmo Koo, Seo Yeon Shin, Kyung Mok Park, Jong Min Yuk, Eunji Lee, Yoon Sung Nam
Summary: Researchers have developed a method to efficiently incorporate proteins into multilamellar protein-lipid hybrid vesicles using protein-induced reorganization of 'pre-formed' unilamellar lipid vesicles, without the need for chemical modification. This approach improves the structural, chemical, and biological stability of the loaded proteins without the use of specialized instruments, high energy, coupling agents, or organic solvents, providing a promising strategy for protein encapsulation.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Chemistry, Multidisciplinary
Bon Il Koo, Jae Woong Choi, Seuk Young Song, Ye Hun Choi, Tae Yong Lee, Shin-Hyun Kim, Ki Jun Jeong, Yoon Sung Nam
Summary: Genetically engineered Corynebacterium glutamicum is introduced as a robust cell display platform for the in situ stabilization and low-cost production of carbonic anhydrase (CA). The cell-displayed CA shows high stability at high temperature and provides a promising technique for achieving highly efficient, sustainable, and low-cost CO2 capture for industrial applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Insu Kim, Nyeongbeen Jo, Yujin Gu, Yoon Sung Nam
Summary: The introduction of an interstitial polydopamine (PDA) layer enhances the Co-OEC/electrode interface for sustainable catalytic activity. The PDA layer efficiently stabilizes the catalyst/electrode interface under high applied potential conditions, maintaining oxygen evolving catalytic activity above 70%.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biophysics
Cheol Am Hong, Jae Chul Park, Hyebin Na, Huiju Jeon, Yoon Sung Nam
Summary: This study introduces a new DNA assay platform that utilizes short target DNA to catalyze the formation of a hydrogel, achieving fast, high sensitivity, and high specificity detection without the need for enzyme-based DNA amplification. The method allows rapid detection of single-base mismatches within 1 hour, and shows potential clinical applicability for key genes of drug-resistant pathogenic bacteria.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Biomedical
Bon Il Koo, Seon-Mi Jin, Hayeon Kim, Dong Jae Lee, Eunji Lee, Yoon Sung Nam
Summary: The study introduced robust conjugation-free multilamellar protein antigen-lipid hybrid nanovesicles (MPLVs) for efficient antigen-specific immune responses, increasing immunological surface markers and cytokines in dendritic cells. Vaccination with MPLVs significantly enhanced anti-antigen antibody and interferon-gamma production by activating CD4(+) and CD8(+) T cells, suggesting MPLVs as a promising nanovaccine delivery platform for efficient antigen cross-presentation.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Materials Science, Biomaterials
Trang Huyen Le-Kim, Bon Il Koo, Sung Duk Jo, Nai-Wen Liang, Moon Young Yang, In Cho, Jae Byum Chang, Tzu-Wei Wang, Yoon Sung Nam
Summary: The study demonstrated the construction of artificial taste buds with active intercellular taste signal transmission using bioorthogonal click chemistry, allowing effective communication between taste cells and neurons. The research showed that surface modification of cells through bioorthogonal click chemistry can create multicellular hybrid clusters with potential applications in cell-based biosensors, toxicity assays, and tissue regeneration.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Engineering, Environmental
Saehan Choi, Jeonga Kim, Rafia Tasnim Rahman, Dong Jae Lee, Kimoon Lee, Yoon Sung Nam
Summary: This study presents plastic-free silica-titania-tannin hybrids that enhance the blocking effects of UV-to-blue light while suppressing the generation of reactive oxygen species (ROS). The results demonstrate the promising application of these hybrids in protecting the skin from UV and blue light-induced damage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Chang Woo Song, Dae-Hyeon Song, Dong Gyu Kang, Ki Hyun Park, Chan E. Park, Hyunwoo Kim, Yongsuk Hur, Sung Duk Jo, Yoon Sung Nam, Jihyeon Yeom, Seung Min Han, Jae-Byum Chang
Summary: This study introduces a method for synthesizing metallic structures resembling specific protein assemblies in mammalian cells and tissues, enabling the growth of metal particles. Utilizing nanogold-conjugated antibodies to label specific proteins within cells and tissues, nanogold acts as nucleation sites for metal particle growth. The new biotemplating approach converts specific protein structures into metallic forms in ex vivo multicellular organisms, demonstrating potential applications in catalysis and structural replication.
ADVANCED MATERIALS
(2022)
Article
Biophysics
Shinyoung Choi, Yoon Sung Nam
Summary: This study reports a novel DNA nanoprobe based on plasmon-enhanced fluorescence and quenching effects, which enables rapid, sensitive, and reliable detection of pathogenic DNA.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Biomedical
Jae Chul Park, Hyebin Na, Saehan Choi, Huiju Jeon, Yoon Sung Nam
Summary: A simple method for miRNA assay is presented, which is based on the one-pot self-assembly of Y-shaped DNAs with streptavidin via an miRNA-catalyzed TMSD cascade reaction. This method incorporates a single base-pair mismatch to facilitate RNA-triggered strand displacement while minimally disturbing nonspecific reactions. The detection limit is significantly reduced from the nanomolar level to the picomolar level.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Materials Science, Biomaterials
Kyounghee Shin, Kun Bong Lee, Jee-Hyun Hwang, Boryeong Lee, Hyunsun Ryu, Minjoo Noh, Jun Bae Lee, Yoon Sung Nam, Kyung-Min Lim, Jin Woong Kim
Summary: This study presents a microvehicle platform with a multilamellar ceramide core structure for effective recovery of the skin barrier function. The researchers used bacterial cellulose nanofiber (BCNF) to encapsulate ceramide-rich lipid microparticles (CerMPs), forming BCNF-armored oil-in-water Pickering emulsions. The CerMP cores had a multilamellar structure that could be adjusted by using fatty alcohols (FAs) with different alkyl chain lengths. The CerMPs reduced trans-epidermal water loss and restored the structural integrity of damaged skin. The findings demonstrate that the CerMP system offers a practical approach for developing skin-friendly formulations that strengthen the skin barrier function.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Biochemistry & Molecular Biology
Bon Il Koo, Rafia Tasnim Rahman, Jihui Jang, Dong Jae Lee, Jun Bae Lee, Yoon Sung Nam
Summary: This study presents a technique for the fabrication of structurally robust lipid nanovesicles through self-assembly of preformed cationic large unilamellar vesicles (LUVs) with hydrolyzed collagen peptides (HCPs). The resulting multilamellar collagen-lipid vesicles (MCLVs) show excellent structural stability against variations in pH, ionic strength, and the addition of surfactants, as well as repeated freeze-thaw stresses. This technique provides a simple and quick method for the production of stable lipid nanovesicles without the use of covalent crosslinkers, organic solvents, and specialized instruments.
Article
Nanoscience & Nanotechnology
Nyeongbeen Jo, Insu Kim, Yoon Sung Nam
Summary: Natural photosynthesis provides attractive models for various applications in photovoltaics and solar fuel production, but poor interfacial electron transfer limits the performance of photoelectrodes. This study presents efficient bias-free biophotovoltaics based on dual heterostructure photoelectrodes. The photocathode and photoanode were prepared using PSI-protonated carbon nitride nanosheet complexes and PSII-TiO2 nanoparticle films, resulting in high photocurrent density and cell power. This work demonstrates a simple self-assembly method for constructing efficient nanobio complex photoelectrodes for enhanced interfacial electron transfer.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Biomaterials
Jihyo Kil, Rafia Tasnim Rahman, Wenxuan Wang, Saehan Choi, Yoon Sung Nam, Sheng Li
Summary: Polymer coatings containing fouling-resistant and fouling-release components show synergistic antifouling properties. The composition of the polymer influences the antifouling performance against different biofoulants. The best-performing copolymer shows surface heterogeneity with a PEG-rich top layer and a PEG/PDMS mixed bottom layer, resisting biofoulant attachment.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)