Dr. Prasad Gajula
Energy Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan, Republic of Korea
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Academic Career Length
12Years (2015-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications9 January 2023 in Nano Energy
Journal Article
Prasad GajulaSGSontyana Adonijah Graham
Sontyana Adonijah Graham
JYJae Su Yu
Jae Su Yu
HKHongdoo Kim
Hongdoo Kim
Dong-Weon Lee21 June 2023 in Chemical Engineering Journal
Journal Article
Journal Article
BIBalaraman Indumathy
Balaraman IndumathySPSathiyanathan Ponnan
Sathiyanathan PonnanPrasad GajulaMRMohammad Shamim Reza
Mohammad Shamim RezaAAAnand Prabu Arun
Anand Prabu ArunHKHongdoo Kim
Hongdoo KimSince the last decade, hyperbranched polymers (HBPs) have gained wider theoretical interest and practical applications in sensor technology due to their ease of synthesis, highly branched structure but dimensions within nanoscale, a larger number of modified terminal groups and lowering of viscosity in polymer blends even at higher HBP concentrations. Many researchers have reported the synthesis of HBPs using different organic-based core-shell moieties. Interestingly, silanes, as organic-inorganic hybrid modifiers of HBP, are of great interest as they resulted in a tremendous improvement in HBP properties like increasing thermal, mechanical and electrical properties compared to that of organic-only moieties. This review focuses on the research progress in organofunctional silanes, silane-based HBPs and their applications since the last decade. The effect of silane type, its bi-functional nature, its influence on the final HBP structure and the resultant properties are covered in detail. Methods to enhance the HBP properties and challenges that need to be overcome in the near future are also discussed.
2 September 2017 in Macromolecular Research
Journal Article
Prasad GajulaPSPonnan Sathiyanathan
Ponnan Sathiyanathan
AAAnand Prabu Arun
Anand Prabu ArunKKKap Jin Kim
Kap Jin KimJournal Article
BABindhu Amrutha
Bindhu AmruthaPrasad GajulaSPSathiyanathan Ponnan
Sathiyanathan PonnanMRMohammad Shamim Reza
Mohammad Shamim RezaHKHongdoo Kim
Hongdoo KimAAAnand Prabu Arun
Anand Prabu Arun +1
A flexible and portable triboelectric nanogenerator (TENG) based on electrospun polyvinylidene fluoride (PVDF) doped with copper oxide (CuO) nanoparticles (NPs, 2, 4, 6, 8, and 10 wt.-% w.r.t. PVDF content) was fabricated. The structural and crystalline properties of the as-prepared PVDF-CuO composite membranes were characterized using SEM, FTIR, and XRD. To fabricate the TENG device, the PVDF-CuO was considered a tribo-negative film and the polyurethane (PU) a counter-positive film. The output voltage of the TENG was analyzed using a custom-made dynamic pressure setup, under a constant load of 1.0 kgf and 1.0 Hz frequency. The neat PVDF/PU showed only 1.7 V, which further increased up to 7.5 V when increasing the CuO contents from 2 to 8 wt.-%. A decrease in output voltage to 3.9 V was observed for 10 wt.-% CuO. Based on the above results, further measurements were carried out using the optimal sample (8 wt.-% CuO). Its output voltage performance was evaluated as a function of varying load (1 to 3 kgf) and frequency (0.1 to 1.0 Hz) conditions. Finally, the optimized device was demonstrated in real-time wearable sensor applications, such as human motion and health-monitoring applications (respiration and heart rate).
Journal Article
JLJun-Wei Liang
Jun-Wei LiangPrasad GajulaSWShi-Cai Wang
Shi-Cai WangJWJia-Lin Wu
Jia-Lin WuSLSheng-Guo Lu
Sheng-Guo LuOil spilling has been a serious problem in the world for a long time, which can bring toxic substances to marine life. A large number of researchers around the world have introduced many measures to address this problem. One of the effective methods to remove oil from the oil/water mixture is to absorb oil from the mixture. Here, we prepared porous poly(lactic acid) (PLA) membranes using the electrospinning approach with different sized syringe needles, and used these membranes to absorb oil from the top of the water. It was found that the diameter of the needle has a big impact on the size and structure of the pores on the PLA fibers. The oil absorption capacity of membranes increases with a decreasing needle diameter due to the increased pore volume and specific surface area. The highest absorption capacity reached was 42.38 g/g for vacuum pump oil, 28.17 g/g for peanut oil, and 6.74 g/g for diesel oil.
About Me
Dr. Gajula Prasad is a Research Professor at the School of Energy, Materials, and Chemical Engineering, Korea University of Technology and Education (KOREATECH), South Korea. His research is dedicated to advancing the field of functional thin films and energy materials through the rational design of polymer–nanomaterial hybrid systems and scalable fabrication methodologies. His work emphasizes engineered surface functionalities for applications in energy harvesting, wearable electronics, and smart coatings, employing advanced techniques such as electrospinning, electrodeposition, and surface modification.
He has established a strong and impactful research profile, with over 45 peer-reviewed publications in leading journals, including Advanced Functional Materials, Nano Energy, Advanced Materials and Hybrid Composites, Small, Chemical Engineering Journal, and ACS Applied Electronic Materials. Dr. Prasad also holds five national and international patents (three Chinese, one Korean, and one US), reflecting his commitment to translational research and technological innovation. A recipient of the prestigious National Research Foundation (NRF) Fellowship in South Korea, he actively contributes to the scientific community as an editorial board member and reviewer for several high-impact journals, supporting the advancement of materials science and energy technologies.