Postdoctoral research scientist at Donghua university, China .
Dr. Daniel K. Macharia is a pioneering postdoctoral researcher at Donghua University, recognized for groundbreaking innovations in reversible, color-switching smart materials. His research bridges material science and functional nanotechnology, enabling real-world applications such as adaptive wearables, smart coatings, and redox-sensitive inks. He has led multiple high-impact projects, invented novel fiber and film systems, and published widely in top-tier journals. His leadership, creativity, and technical excellence have resulted in transformative advancements in semiconductor catalysis and stimuli-responsive materials, making him a standout candidate for the Outstanding Contribution Award.
🌍 Professional Profile:
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🏆 Suitability for the Outstanding Contribution Award
Dr. Daniel K. Macharia is a pioneering postdoctoral researcher at Donghua University, recognized for groundbreaking innovations in reversible, color-switching smart materials. His research bridges material science and functional nanotechnology, enabling real-world applications such as adaptive wearables, smart coatings, and redox-sensitive inks. He has led multiple high-impact projects, invented novel fiber and film systems, and published widely in top-tier journals. His leadership, creativity, and technical excellence have resulted in transformative advancements in semiconductor catalysis and stimuli-responsive materials, making him a standout candidate for the Outstanding Contribution Award.
🎓 Education
Dr. Macharia earned his Doctor of Engineering in Materials Science from Donghua University (2016–2022), with top grades in both coursework and thesis. His Ph.D. focused on designing semiconductor nanomaterials with photocatalytic and photothermal properties for photoreversible color-switching. He also holds a Master’s in Materials Science and Engineering from Donghua University (2012–2015), where he researched photothermal nanoagents for cancer therapy. His foundational education includes a Bachelor of Engineering in Industrial and Textile Engineering from Moi University, Kenya (2006–2011), graduating with Second Class Upper Division honors. His undergraduate thesis explored electronic waste management in Kenya. Across all academic levels, Dr. Macharia consistently demonstrated academic excellence and a strong commitment to innovative research.
🏢 Work Experience
Since 2022, Dr. Macharia has served as a postdoctoral fellow at Donghua University, leading a sub-group on color-switching materials. He has overseen postgraduate student projects and spearheaded innovations in dual-light responsive nanomaterials, redox-sensitive inks, and smart fibers. His contributions include inventing wet-spun color-switching fibers, developing multi-responsive films, and designing adaptive, chameleon-like materials using Prussian blue analogues. His work has led to first-author publications, national and international research grants, and multiple patents. He has presented his research at international conferences and co-authored over ten papers. With hands-on leadership and a knack for material innovation, Dr. Macharia has significantly advanced the field of smart materials and wearable technologies.
🏅 Awards and Honors
Dr. Macharia’s contributions to material science have earned him significant accolades. He received a prestigious National Science Foundation of China grant (Grant No. 52350410455) worth over USD 55,000 for his work on semiconductor-based nanomaterials with dual-light responses. Additionally, he secured an international cooperation grant, bringing total research funding to USD 100,000. He has published first-author and corresponding-author papers in top journals like Advanced Optical Materials and Journal of Colloid and Interface Science. His patented inventions and leadership in cutting-edge smart color-switching materials have been recognized both nationally and internationally. These honors reflect his innovative spirit, deep expertise, and contributions that bridge academia and practical industry applications.
🔬 Research Focus
Dr. Macharia’s research centers on stimuli-responsive smart materials, particularly reversible color-switching systems using semiconductor nanomaterials. His work integrates photocatalysis, photothermal effects, and redox chemistry to create advanced fibers, inks, films, and coatings. His key innovations include wet-spun, dual-light responsive fibers, multi-color switching inks, and thermochromic and hydrochromic dyes for adaptive applications. He explores the mechanisms behind nanomaterial-driven color transitions and light-induced molecular assembly, aiming to develop intelligent materials for next-generation textiles, displays, and environmental sensing. His interdisciplinary approach spans materials science, nanotechnology, and engineering—positioning him at the forefront of functional material innovation for smart wearables and beyond.
📊 Publication Top Notes:
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Wen, Z., Yang, X., Macharia, D. K., Feng, Q., Lv, H., Wen, M., Yu, N., & Chen, Z. (2024). Photo-sensitive Bi-doped TiO₂ nanocrystals with reversible single and multi-mode color transformations for rewritable printing. Advanced Optical Materials, 2024, 2402793.
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Macharia, D. K., Liu, M., Wen, Z., Feng, Q., Yang, X.*, & Chen, Z. (2024). On-demand green/red light-responsive self-doped SnO₂ nanoparticles for single/multi-color transitioning fabrics. Journal of Colloid and Interface Science, 2024, 678, 534–544.
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Liu, M., Liu, Z., Wen, Z., Yu, N., Macharia, D. K., Zhu, M., & Chen, Z. (2024). N-Doped Carbon-Quantum-Dot-Integrated Colorimetric System for Visible Photoprinting and Oxygen Sensing. Advanced Optical Materials, 2024, 12, 2302787.
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Macharia, D. K., Sarker, S., Liu, M., Wen, Z., Yu, N., Zhu, M., & Chen, Z.* (2023). Constructing on-demand single/multi-color transitioning fabrics with photocatalysis/photothermal-armed deficient semiconductors. Nano Research, 2023, 17, 3633.
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Macharia, D. K., Ahmed, S., Sarker, S., Zhu, Y., Geng, P., Yu, N., & Chen, Z.* (2022). Ag decorated CeO₂₋ₓ nanojunctions with plasmon-enhanced catalytic performance for mono/multi-color switching. Chemical Engineering Journal, 2022, 431, 133996.
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Macharia, D. K., Sarker, S., Zhu, B., Zhang, Y., Liu, Z., Yu, N., & Chen, Z. (2021). Constructing On-demand Photoreversible Mono/Multi-color Switching Fabrics with Plasmonic In-doped ZnO Catalyzed Systems. Chemical Engineering Journal, 2021, 425, 130638.
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Macharia, D. K., Ahmed, S., Zhu, B., Liu, Z., Wang, Z., Mwasiagi, J. I., Chen, Z., & Zhu, M. (2019). UV/NIR-Light Triggered Rapid and Reversible Color Switching for Rewritable Smart Fabrics. ACS Applied Materials & Interfaces, 2019, 11, 13370–13379.