Selected publications

1. Ei Ogata, Viet-Dung Pham, Ikuro Kasuga, Hiroyuki Kato (2025). Unveiling the Biological Methylation of 2,4,6-Trichlorophenol and the Formation of 2,4,6-Trichloroanisole in a Municipal Wastewater Treatment Plant. Journal of Hazardous Materials, 139773.

2. Yutaro Uehara, Ikuro Kasuga, Hiroaki Furumai, Futoshi Kurisu (2025). Effect of Organic Enrichment and Desalination on Sample Pretreatment for Non-targeted Analysis of Dissolved Organic Matter in Urban River Water by LC-ESI-Orbitrap MS. Journal of Water and Environment Technology, 23(3), 155–166.

3. Vu Duc Canh, Tippawan Singhopon, Ikuro Kasuga, and Hiroyuki Katayama (2025). Removal of viruses and antibiotic resistance genes in bacteriophage fraction by conventional activated sludge (CAS) and membrane bioreactor treatment (MBR) systems. Science of the Total Environment, 989, 179787.

4. Chenrun Jiang, Toshiyuki Onuma, Kenichi Yoshizawa, Futoshi Kurisu, Ikuro Kasuga (2025). Characterization of adsorption and biodegradation potential of biological activated carbon removing 2-methylisoborneol in drinking water. Journal of Water Environment and Technology, 23(1), 36–45. DOI: 10.2965/jwet.24-071.

5. Yalan Gan, Futoshi Kurisu, Dai Simazaki, Mitsuyoshi Yoshida, Hanako Fukano, Takeshi Komine, Hiromi Nagashima, Yoshihiko Hoshino, and Ikuro Kasuga (2025). Unveiling significant regrowth and potential risk of nontuberculous mycobacteria in hospital water supply system. Water Research, 275, 123188.

6. My Hanh Vu Thi, Futoshi Kurisu, Futoshi Hasebe, Masato Suzuki, and Ikuro Kasuga (2024). Characterization of microbial communities and antimicrobial resistance genes in urban wastewater in three cities in Vietnam. Journal of Water Environment and Technology, 22(6), 308–320.

7. Miaomiao Liu and Ikuro Kasuga (2024). Impact of chlorine disinfection on intracellular and extracellular antimicrobial resistance genes in wastewater treatment and water reclamation. Science of the Total Environment, 175046.

8. Maho Ota, Ikuro Kasuga, and Futoshi Kurisu (2024). Sensitivity and quantitativeness of large-volume injection combined with liquid chromatography/high-resolution mass spectrometry for target screening analysis of emerging contaminants. Environmental Pollution, 355, 124180.

9. Ryo Honda, Manish Kumar, Mardalisa, Rongxuan Wang, Muhammad Adnan Sabar, Tushara Chaminda, Kwanrawee Sirikanchana, Prasert Makkeaw, Sulfikar, Feng Ju, Guangming Jiang, Bing Li, Chart Chiemchaisri, Ryota Gomi, Mohan Amarasiri, Henrietta Venter, Masateru Nishiyama, Toru Watanabe, Masaru Ihara, Ikuro Kasuga, Kozo Watanabe, and Satoru Suzuki (2024). Recommendations of key elements within an integrated monitoring framework of antimicrobial resistance for Asian countries. Environmental Science & Technology Letters, 11(1), 5–8.

10. Iftita Rahmatika, Dai Simazaki, Futoshi Kurisu, Hiroaki Furumai, and Ikuro Kasuga (2023). Occurrence and diversity of nontuberculous mycobacteria affected by water stagnation in building plumbing. Water Supply, 23(12), 5017–5028.

11. Yuta Ishizaki, Futoshi Kurisu, Hiroaki Furumai, and Ikuro Kasuga (2023). Autotrophic growth activity of complete ammonia oxidizers in an upflow biological contact filter for drinking water treatment. Letters in Applied Microbiology, 76(9), 1–6.

12. Aishwarya Pandey, Ikuro Kasuga, Hiroaki Furumai, and Futoshi Kurisu (2023). Concurrent analysis of 84 compounds in the list of emerging contaminants published by the Ministry of Environment, Japan in domestic wastewater treatment plants using liquid chromatography and high-resolution mass spectrometry (LC-HRMS). Journal of Water Environment and Technology, 21(2), 108–118.

13. Nga Thi Nguyen, Futoshi Kurisu, Hiroaki Furumai, and Ikuro Kasuga (2023). Antimicrobial resistance profiles of bacterial community in premise plumbing before and after water stagnation. Journal of Water Environment and Technology, 21(2), 19–29.

14. Huong Thi Thu Nguyen, Ha Thi Viet Tran, Phuong Minh Nguyen, Ikuro Kasuga (2023). Synthesis and optimization of visible-light-driven G-C3N4/CoMoO4 for the removal of tetracycline. Journal of Water and Environment Technology, 21(1), 11–18.

15. Yuta Shinfuku, Hirokazu Takanashi, Tsunenori Nakajima, Ikuro Kasuga, and Michihiro Akiba (2022). The status quo of causal substance exploration for fishy odor in raw water for taps. Journal of Water Environment and Technology, 20(2), 29–44.

16. Yalan Gan, Iftita Rahmatika, Futoshi Kurisu, Hiroaki Furumai, Dai Simazaki, Hanako Fukano, Yoshihiko Hoshino, and Ikuro Kasuga (2022). The fate and risk of nontuberculous mycobacteria in water supply system: A review. H2Open Journal, 5(2), 180–197.

17. Iftita Rahmatika, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2022). Dynamics of microbial community and opportunistic pathogens after water stagnation in premise plumbing of a building. Microbes and Environments, 37(1), ME21065. DOI: 10.1264/jsme2.ME21065.

18. Ikuro Kasuga, Kyoka Nagasawa, Masato Suzuki, Futoshi Kurisu, and Hiroaki Furumai (2022). High-throughput screening of antimicrobial resistance genes and their associations with class 1 integrons in urban rivers in Japan. Frontiers in Environmental Science, 10, 825372.

19. Trung Duc Dao, Ikuro Kasuga, Aki Hirabayashi, Dong Tu Nguyen, Hien Thi Tran, Hiue Vu, Linh Tuyet Ngoc Pham, Thi My Hanh Vu, Futoshi Hasebe, Ha Thanh Nguyen, Trang Le Thi, Hoang Huy Tran, Keigo Shibayama, Taichiro Takemura, and Masato Suzuki (2022). Emergence of mobile tigecycline resistance gene tet(X4)-harboring Shewanella xiamenensis in a water environment. Journal of Global Antimicrobial Resistance, 28, 140–142.

20. Aki Hirabayashi, Trung Duc Dao, Taichiro Takemura, Futoshi Hasebe, Le Thi Trang, Nguyen Ha Thanh, Hoang Huy Tran, Keigo Shibayama, Ikuro Kasuga, and Masato Suzuki (2021). A transferable IncC-IncX3 hybrid plasmid co-carrying blaNDM-4, tet(X4), and tmexCD3-toprJ3 confers resistance to carbapenem and tigecycline. mSphere, 6(4), e00592-21.

21. Ikuro Kasuga, Hitomi Nakamura, Futoshi Kurisu, and Hiroaki Furumai (2021). Characterization of microbial regrowth potential shaped by advanced drinking water treatment. H2Open Journal, 4(1), 157–166.

22. Daniel Ekhlas, Futoshi Kurisu, Ikuro Kasuga, Tomislav Cernava, Gabriele Berg, Miaomiao Liu, and Hiroaki Furumai (2021). Identification of new eligible indicator organisms for combined sewer overflow via 16S rRNA gene amplicon sequencing in Kanda River, Tokyo. Journal of Environmental Management, 284, 112059.

23. Nga Thi Nguyen, Miaomiao Liu, Hiroyuki Katayama, Taichiro Takemura, and Ikuro Kasuga (2021). Association of the colistin resistance gene mcr-1 with fecal pollution in water environments in Hanoi, Vietnam. Letters in Applied Microbiology, 72(3), 275–282.

24. Phanwatt Phungsai, Futoshi Kurisu, Ikuro Kasuga, and Hiroaki Furumai (2021). Changes in dissolved organic matter during water treatment by sequential solid-phase extraction and unknown screening analysis. Chemosphere, 263, 128278.

25. Yoshihiro Ishii, Futoshi Kurisu, Ikuro Kasuga, and Hiroaki Furumai (2021). Competition for growth substrates in river water between Escherichia coli and indigenous bacteria illustrated by high resolution mass spectrometry. Letters in Applied Microbiology, 72(2), 133–140.

26. Chotiwat Jantarakasem, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2020). Temperature-dependent ammonium removal capacity of biological activated carbon used in a full-scale drinking water treatment plant. Environmental Science & Technology, 54(20), 13257–13263.

27. Warangkana Na Phatthalung, Oramas Suttinun, Phanwatt Phungsai, Ikuro Kasuga, Futoshi Kurisu, Hiroaki Furumai, and Charongpun Musikavong (2020). Non-target screening of dissolved organic matter in raw water, coagulated water, and chlorinated water by Orbitrap mass spectrometry. Chemosphere, 264, 128437.

28. Li Xie, Fumiyuki Nakajima, Ikuro Kasuga, and Futoshi Kurisu (2020). Simultaneous screening for chemically diverse micropollutants in public water bodies in Japan by high-performance liquid chromatography–Orbitrap mass spectrometry. Chemosphere, 273, 128524.

29. Ikuro Kasuga, Miyu Suzuki, Futoshi Kurisu, and Hiroaki Furumai (2020). Molecular-level characterization of biodegradable organic matter causing microbial regrowth in drinking water by non-target screening using Orbitrap mass spectrometry. Water Research, 184, 116130.

30. Ikuro Kasuga, Vitharuch Yuthawong, Futoshi Kurisu, and Hiroaki Furumai (2020). Molecular-level comparison of dissolved organic matter in 11 major lakes in Japan by Orbitrap mass spectrometry. Water Supply, 20(4), 1271–1280.

31. Vitharuch Yuthawong, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2020). Application of Orbitrap mass spectrometry to investigate seasonal variations of dissolved organic matter composition in a eutrophic lake in Japan. Environmental Science: Water Research & Technology, 6(7), 1816–1827.

32. Thi My Hanh Vu and Ikuro Kasuga (2020). Prevalence of plasmid-mediated colistin resistance gene mcr-1 in domestic wastewater. IOP Conference Series: Earth and Environmental Science, 496(1), 012015.

33. Minh Ngoc Pham and Ikuro Kasuga (2020). Profiling fecal pollution in rivers in Hanoi, Vietnam, using host-specific Bacteroidales and crAssphage markers. IOP Conference Series: Earth and Environmental Science, 496, 012014.

34. Nga Thi Nguyen, Taichiro Takemura, Anh Hong Quynh Pham, Hien Thi Tran, Kim Chi Thi Vu, Nguyen Dong Tu, Le Thanh Huong, Ngo Tuan Cuong, Ikuro Kasuga, Futoshi Hasebe, and Masato Suzuki (2020). Whole-genome sequencing and comparative genomic analysis of Shewanella xiamenensis strains carrying blaOXA-48-like genes isolated from water environment in Vietnam. Journal of Global Antimicrobial Resistance, 21, 272–274.

35. Manish Kumar, Hiroaki Furumai, Ikuro Kasuga, and Futoshi Kurisu (2020). Metal partitioning and leaching vulnerability in soil, soakway sediment, and road dust in the urban area of Japan. Chemosphere, 252, 126605.

36. Iftita Rahmatika, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2020). Impacts of organic matter migrating from pipe materials on microbial regrowth in drinking water. Journal of Water and Environment Technology, 18(1), 45–53.

37. Miaomiao Liu, Ikuro Kasuga, Akihiko Hata, and Hiroyuki Katayama (2020). Consecutive ultrafiltration and silica adsorption for recovery of extracellular antibiotic resistance genes from an urban river. Environmental Pollution, 260, 114062.

38. Vu Duc Canh, Ikuro Kasuga, Hiroaki Furumai, and Hiroyuki Katayama (2019). Viability RT-qPCR combined with sodium deoxycholate pre-treatment for selective quantification of infectious viruses in drinking water samples. Food and Environmental Virology, 11(1), 40–51.

39. Phungsai Phanwatt, Futoshi Kurisu, Ikuro Kasuga, and Hiroaki Furumai (2019). Molecular characteristics of dissolved organic matter transformed by O₃ and O₃/H₂O₂ treatments and the effects on formation of unknown disinfection by-products. Water Research, 159, 214–222.

40. Thi Nga Nguyen, Miaomiao Liu, Ikuro Kasuga, and Hiroyuki Katayama (2019). Occurrence of antibiotic resistance genes as emerging contaminants in watersheds of Tama River and Lake Kasumigaura in Japan. IOP Conference Series: Earth and Environmental Science, 266, 012003.

41. Mohammad Mosleh Uddin, Futoshi Kurisu, Ikuro Kasuga, Hiroaki Furumai, and S. M. Atiqul Islam (2019). Potential of biological arsenite oxidation in sand filtration units at arsenic–iron removal plants (AIRPs) in Bangladesh. Applied Water Science, 9(48), 2–7.

42. Vitharuch Yuthawong, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2019). Molecular-level changes in dissolved organic matter compositions of Lake Inba water by KMnO₄ oxidation assessed by Orbitrap mass spectrometry. Journal of Water and Environment Technology, 17(1), 27–39.

43. Jia Niu, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2019). Growth competition between ammonia-oxidizing archaea and bacteria for ammonium and urea in a biological activated carbon filter used for drinking water treatment. Environmental Science: Water Research & Technology, 5(2), 231–238.

44. Jia Niu, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2018). Effects of backwashing on granular activated carbon with ammonium removal potential in a full-scale drinking water purification plant. Water, 10(12), 1830.

45. Vu Duc Canh, Hideki Osawa, Kentaro Inoue, Ikuro Kasuga, Satoshi Takizawa, Hiroaki Furumai, and Hiroyuki Katayama (2018). Ferrihydrite treatment to mitigate inhibition of RT-qPCR virus detection from large-volume environmental water samples. Journal of Virological Methods, 263, 60–67.

46. Kumiko Oguma, Kaori Kanazawa, Ikuro Kasuga, and Satoshi Takizawa (2018). Effects of UV irradiation by light emitting diodes on heterotrophic bacteria in tap water. Photochemistry and Photobiology, 94, 570–576.

47. Poopipatta Chomphunnut, Misaki Nakajima, Ikuro Kasuga, Futoshi Kurisu, Hiroyuki Katayama, and Hiroaki Furumai (2018). Spatial-temporal distribution of PPCPs and microbial fecal indicators as sewage pollution markers in Tokyo coastal area after rainfall events. Journal of Water and Environment Technology, 16(3), 149–160.

48. Vu-Duc Canh, Ikuro Kasuga, Hiroaki Furumai, and Hiroyuki Katayama (2018). Impact of various humic acids on EMA-RT-qPCR to selectively detect intact viruses in drinking water. Journal of Water and Environment Technology, 16(2), 83–93.

49. Phungsai Phanwatt, Futoshi Kurisu, Ikuro Kasuga, and Hiroaki Furumai (2018). Changes in dissolved organic matter composition and disinfection byproduct precursors in advanced drinking water treatment processes. Environmental Science & Technology, 52(6), 3392–3401.

50. Vitharuch Yuthawong, Ikuro Kasuga, Futoshi Kurisu, and Hiroaki Furumai (2017). Comparison of low molecular weight dissolved organic matter compositions between Lake Inba and Kashima River by Orbitrap mass spectrometry. Journal of Water and Environment Technology, 15(1), 12–21.

Research projects

1. Research on the fate and control of endotoxin-producing bacteria in membrane filtration processes for water purification — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Scientific Research (B), 2024-2026.

2. Unveiling fate of non-tuberculous mycobacteria and control of their infection risk in hospital water supply system — Principal Investigator. Research Category: Grant-in-Aid for Scientific Research (A), 2024-2027.

3. A structural elucidation technique of unknown substances with mass spectrometry, quantum chemistry, and chemical kinetics and its application to unknown growth substrates for pathogenic bacteria — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Scientific Research (B), 2024-2025.

4. Challenge to control environmental microorganisms based on analysis of dissolved organic matter in water — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Challenging Research (Pioneering), 2023-2025.

5. Elucidation of spread and circulation of antimicrobial resistance factors driven by the release of untreated wastewater to the environment in Vietnam — Principal Investigator. Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)), 2022-2025.

6. Establishment of monitoring scheme of antimicrobial resistance pollution in water environment by using integron as a marker gene — Principal Investigator. Research Category: Grant-in-Aid for Challenging Research (Exploratory), 2021-2022.

7. Developing Management Frameworks of Unregulated Pollutants Considering Water Recycling in River Basins — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Scientific Research (A), 2021-2024.

8. Elucidation of physiochemical characteristics and control measures of endotoxin-producing bacteria dominating in water purification systems — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Scientific Research (B), 2021-2023.

9. Prediction and Control of Fecal Pollution by Combined Sewer Overflows in Urban Coastal Waters — Co-Investigator (Buntan). Research Category: Grant-in-Aid for Scientific Research (B), 2020-2022.

10. Establishment of next-generation water supply system to control risk of non-tuberculous Mycobacterium— Principal Investigator. Research Category: Grant-in-Aid for Scientific Research (B), 2020-2022.