Article
Polymer Science
Sofia Mares-Bou, Maria-Antonia Serrano, Jose Antonio Gomez-Tejedor
Summary: Electrospun membranes were developed for controlled drug release with different coating structures. The morphology of the fibers was analyzed and different release rates were obtained for the coated fibers, making them suitable for various applications.
Article
Chemistry, Applied
Seyedeh Zahra Hoseyni, Seid Mahdi Jafari, Hoda Shahiri Tabarestani, Mohammad Ghorbani, Elham Assadpour, Moslem Sabaghi
Summary: This study successfully encapsulated catechin in nanofibers from Azivash gum-polyvinyl alcohol using the electrospinning process. The increase in catechin concentration was found to affect encapsulation efficiency and loading capacity, while FTIR spectroscopy highlighted interactions between catechin and the polymer. The designed nanofibers showed potential for active packaging in improving oxidative stability of food and pharmaceutical products.
FOOD HYDROCOLLOIDS
(2021)
Article
Polymer Science
Xinbin Ji, Jing Guo, Fucheng Guan, Yuanfa Liu, Qiang Yang, Xin Zhang, Yi Xu
Summary: The PVA/NC nanofiber membranes show good crystalline properties and mechanical strength, with the ability to improve material properties through adjusting the NC content. They exhibit excellent liquid absorption capacity and cytocompatibility.
Article
Chemistry, Multidisciplinary
Diana Serbezeanu, Alexandra Bargan, Mihaela Homocianu, Magdalena Aflori, Cristina Mihaela Rimbu, Alexandru Alin Enache, Tachita Vlad-Bubulac
Summary: This study developed poly (vinyl alcohol)-based nanofiber mats loaded with phytotherapeutic agents using electrospinning technique. The addition of Thymus vulgaris, Salvia officinalis folium, and Hyperici herba extracts changed the morphology and reduced the diameter of the fibers. Samples with Hyperici herba and Thymus vulgaris exhibited the highest phenol contents.
Article
Biophysics
Daniela Coelho, Beatriz Veleirinho, Leticia Mazzarino, Thais Alberti, Elizandra Buzanello, Regina Eva Oliveira, Rosendo Augusto Yunes, Milene Moraes, Mario Steindel, Marcelo Maraschin
Summary: Cutaneous leishmaniasis is a global public health issue, and the use of synthetic chalcones shows promise in developing molecules with anti-leishmaniasis activity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Jinghao Huo, Guoqiang Zhang, Xiaoyan Yuan, Shouwu Guo
Summary: In this study, reduced graphene oxide (rGO) nanosheets were spray-coated onto electrospun polyvinyl alcohol (PVA) nanofibers to fabricate a multilayer rGO/PVA film. The resulting flexible H-rGO/PVA-4 composite exhibited high thermal conductivity and was used as a thermal-interface material (TIM) for effective thermal management. Compared to a pure PVA film, the H-rGO/PVA-4 TIM facilitated lower surface temperatures for LED lamps. This study provides a universal approach for fabricating heat-dissipating composites of 2D materials and polymer films.
ACS APPLIED NANO MATERIALS
(2023)
Article
Polymer Science
Shafizah Sa'adon, Mohamed Nainar Mohamed Ansari, Saiful Izwan Abd Razak, Joseph Sahaya Anand, Nadirul Hasraf Mat Nayan, Al Emran Ismail, Muhammad Umar Aslam Khan, Adnan Haider
Summary: The study aimed to prepare a dual layer PVA patch using a combination of electrospinning techniques and cryogelation, and analyze the effects of freeze-thaw cycles, nanofiber thickness, and DS loading on the physicochemical and mechanical properties. The results showed that increasing nanofiber thickness, freeze-thaw cycles, and DS saturation improved the properties of the dual layer PVA patches, making them promising biomaterials for transdermal drug delivery applications.
Article
Polymer Science
Yen-Lung Chou, Hsin-Yi Wen, Yu-Qiao Weng, Yi-Ching Liu, Chao-Wei Wu, Hsiang-Cheng Hsu, Chia-Chin Chiang
Summary: This study describes the fabrication of an electrospun, U-shaped optical fiber sensor for temperature measurements. The sensor is based on single mode fibers and was fabricated into a U-shaped optical fiber sensor through flame heating. Electrospinning was applied to reduce the sensor's sensitivity to humidity. The results showed that longer electrospinning durations led to thicker sensor layers and higher sensor sensitivity.
Article
Materials Science, Textiles
Nazan Okur, Canan Saricam, Ikilem Gocek, Berdan Kalav, Umut Kivanc Sahin
Summary: This study developed beta-cyclodextrin functionalized polyvinyl alcohol nanofiber webs using the electrospinning method, introducing beta-cyclodextrin/Vitamin C inclusion complexes. The successful incorporation of these complexes could potentially have useful applications in cosmetics, personal-care products, and topical drug delivery.
JOURNAL OF INDUSTRIAL TEXTILES
(2021)
Review
Biochemistry & Molecular Biology
Lele Chen, Zhao Liu, Jipeng Shi, Chengbo Wang, Ling Ding, Xu Ding, Guixiang Teng, Jianping Wu, Ji Zhang
Summary: In this study, environmentally friendly chitosan/polyvinyl alcohol nanofibrous mats were prepared using acetic acid, succinic acid, and citric acid as solvents. The effects of different organic acids on the properties of the nanofibres were systematically studied. The results showed that the nanofibrous mat prepared using citric acid exhibited higher water stability and optimal antibacterial activity and biocompatibility.
PROCESS BIOCHEMISTRY
(2022)
Article
Polymer Science
Farid Moradinezhad, Sara Hedayati, Elham Ansarifar
Summary: This study developed an active packaging material by encapsulating Zataria multiflora essential oil (ZMEO), a natural antimicrobial agent, into polyvinyl alcohol (PVA) fiber using electrospinning. ZMEO showed effective inhibitory effects on pathogenic bacteria, fungi, and yeasts. Scanning electron microscopy and Fourier-transform infrared spectroscopy confirmed the physical encapsulation of ZMEO into the PVA fiber. Strawberries treated with PVA/ZMEO exhibited better preservation of various quality attributes during cold storage. These findings demonstrate the effectiveness of electrospinning for encapsulating bioactive compounds and the potential of PVA/ZMEO for active packaging.
Article
Materials Science, Multidisciplinary
Margaret O. Ilomuanya, Peace Ofonabasi Bassey, Ibilola M. Cardoso-Daodu, Yanhao Hou, Bright U. Nmesirionye, Andrew N. Amenaghawon, Olusola Ojo, Samson A. Adeosun, Weiguang Wang
Summary: Electrospinning is a major technology for fabricating tissue engineering membranes, which can mimic native tissue characteristics and control drug release. This research compares different electrospun polyvinyl alcohol/hyaluronic acid composite nanofiber membranes to identify the optimal material-fabrication combination for wound dressing and skin tissue engineering applications.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Myoung Jun Park, Grace M. Nisola, Dong Han Seo, Chen Wang, Sherub Phuntsho, Youngwoo Choo, Wook-Jin Chung, Ho Kyong Shon
Summary: Graphene oxide nanosheets were used as a selective layer on a highly porous polyvinyl alcohol nanofiber support to synthesize composite nanofiltration membranes. By cross-linking the nanosheets and linking them onto the support surface using glutaraldehyde, stable membranes were produced with high solute rejection rates. This approach may offer a promising method for the fabrication of mechanically stable thin-film composite membranes effective in solute separation via nanofiltration.
Article
Food Science & Technology
Lanlan Wei, Dongrui Zhou, Xuejun Kang
Summary: The probiotic Lactobacillus plantarum was encapsulated in polyvinyl alcohol and polyvinyl alcohol/silk fibroin nanofibers by electrospinning. The optimized condition of 6% SF and 8% PVA resulted in improved survival rates and growth stability of the encapsulated L. plantarum. This novel encapsulation approach provides protection for probiotic cells under adverse environmental and intestinal conditions.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2021)
Article
Polymer Science
Hiren Bhajiwala, H. R. Imam Khasim, Rajendra B. Patankar, Bhavesh Desai, Virendra K. Gupta
Summary: In this study, core-sheath fibers of polyvinyl alcohol/polyethylene composites were successfully synthesized using titanium tetrachloride incorporated PVA nanofiber as catalyst precursor and methyl aluminoxane as a cocatalyst. The thermal analysis confirmed the presence of polyethylene in the composite fibers.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Physical
Bebi Hambirrao Patil, Kihun Jang, Sanghyun Lee, Ju Hwan Kim, Chong Seung Yoon, Jihyeon Kim, Dong Ha Kim, Heejoon Ahn
JOURNAL OF ALLOYS AND COMPOUNDS
(2017)
Article
Thermodynamics
Bebi Patil, Suhyun Ahn, Changyong Park, Hyeonjun Song, Youngjin Jeong, Heejoon Ahn
Article
Chemistry, Multidisciplinary
Ranjith Bose, Bebi Patil, Vasanth Rajendiran Jothi, Tae-Hyun Kim, Paulraj Arunkumar, Heejoon Ahn, Sung Chul Yi
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Seongil Yu, Bebi Patil, Heejoon Ahn
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2019)
Article
Chemistry, Physical
Se Hun Lee, Changyong Park, Jong Woo Park, Seon Jeong Kim, Seung Soon Im, Heejoon Ahn
JOURNAL OF POWER SOURCES
(2019)
Article
Engineering, Electrical & Electronic
Suk Hun Hyun, Se-Hoon Park, Sung-Hoon Choa, Hyun Jin Nam, Heejoon Ahn
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2019)
Article
Polymer Science
Ji Su Kim, Ji Eun Song, Daeyoung Lim, Heejoon Ahn, Wonyoung Jeong
Article
Chemistry, Analytical
Se Hun Lee, Jae Hoon Bang, Jichang Kim, Changyong Park, Myung Sik Choi, Ali Mirzaei, Seung Soon Im, Heejoon Ahn, Hyoun Woo Kim
Summary: For the first time, PEDOT:PSS-AVNF composite materials were successfully synthesized using a sono-chemical method for NH3 gas sensing, demonstrating higher sensitivity and shorter response time. Improved NH3 sensitivity was mainly attributed to enhanced electrical conductivity, high surface area, and p-p heterojunctions formed between PEDOT:PSS and AVNF.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Jichang Kim, Se Hun Lee, Changyong Park, Hyung-Seok Kim, Jae-Ho Park, Kyung Yoon Chung, Heejoon Ahn
Summary: The study proposes a facile sonochemical method for controlling the interlayer of vanadate nanofiber crystal structure using PEDOT to overcome the shortcomings of vanadium oxide-based materials. The intercalation of the conducting polymer increases the electron pathway and extends the distance of the vanadate layers, which helps to increase the number of active sites and accelerate zinc ion intercalation/de-intercalation process. These findings could guide research on the next generation of ZIBs as a replacement for lithium ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Mechanical
Chiho Song, Baohong Chen, Jeonguk Hwang, Sujin Lee, Zhigang Suo, Heejoon Ahn
Summary: This study demonstrates a method to print a highly stretchable supercapacitor using ink. By utilizing specific materials and processes, the supercapacitor maintains stable performance even under stretching conditions.
EXTREME MECHANICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jeonguk Hwang, Sanghyun Lee, Sucheol Kim, Kwanghyun Do, Sungwook Kim, Hyeonmin Jo, Hee-Dae Lim, Heejoon Ahn
Summary: Graphene encapsulation is a promising surface-coating technology that can enhance both the rate capability and cycle stability of nickel-rich LiNixCoyMn1-x-yO2 (NCM). Addition of polyethylenimine (PEI) and polyhedral oligomeric silsesquioxane (POSS) in the carbon layer effectively prevents the formation of harmful factors in the electrolyte, thereby maximizing the electrochemical performance of NCM.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Sanghyun Lee, Jeonguk Hwang, Changyong Park, Suhyun Ahn, Kwanghyun Do, Sungwook Kim, Heejoon Ahn
Summary: In this study, metallic 1T phase molybdenum disulfide (MoS2) nanosheets were synthesized and uniformly coated on the surface of Ni-rich LiNi1-x-yCoxMnyO2 (NCM) particles through electrostatic interactions. The MoS2-PEI layer effectively alleviated the electrochemical performance degradation of NCM caused by irreversible phase transitions, microcrack formation, transition metal dissolution, and thick cathode electrolyte interface (CEI) layer formation by suppressing side reactions. Moreover, the MoS2-PEI layer provided a sufficient transport pathway for charge transfer and Li+ ion diffusion, thereby mitigating electrode polarization and impedance increase. The NCM/ceMoS2-PEI electrodes exhibited high discharge capacity and outstanding capacity retention.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Se Hun Lee, Jeonguk Hwang, Chiho Song, Changyong Park, Hyung-Seok Kim, Heejoon Ahn
Summary: This study presents the development of highly stretchable and cycle-stable zinc-ion microbatteries. By incorporating conducting polymer-intercalated cathode materials, wavy-type microdevice construction, and pre-zincation techniques, the researchers achieved high specific capacity, energy density, and power density for the microbatteries. They also demonstrated excellent stretchability and stability under extreme environments.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Sanghyun Lee, Jeonguk Hwang, Changyong Park, Suhyun Ahn, Kwanghyun Do, Sungwook Kim, Kangmin Lee, Se Hun Lee, Rahul R. Salunkhe, Heejoon Ahn
Summary: In this study, defect-engineered composite cathode materials were designed and fabricated to achieve high capacity and good cycling stability for AZIBs batteries. By intercalating NH4+ and H2O as pillars to stabilize the layered structure, and providing conductive networks with 1T-MoS2 nanosheets, the charge transfer and reversible intercalation performance were enhanced during the charging-discharging process.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Bebi Patil, Changyong Park, Heejoon Ahn
