Copyright (c) 2025 Kaniga Pandi, Binoy Varghese Cheriyan, Abisheka Sree Anburaj, Lini priyadharshini christopher jebaraj, Lavanya Murugesan, Kaviyashri Ramesh, Sam Jebaraj Y

This work is licensed under a Creative Commons Attribution 4.0 International License.
Extraction and Pharmacological Validation of Ursolic Acid from Hedyotis diffusa: A Molecular Docking Approach against Inflammation and Colon Cancer
Corresponding Author(s) : Kaniga Pandi
Asian Journal of Chemistry,
Vol. 37 No. 12 (2025): Vol 37 Issue 12, 2025
Abstract
In traditional Chinese and Indian medical systems, Hedyotis diffusa is a well-known medicinal plant that is renowned for its wide range of pharmacological properties. The extraction, identification and pharmacological confirmation of ursolic acid a significant bioactive triterpenoid from H. diffusa are the main objectives of this investigation. The ethanolic extract was subjected to Soxhlet extraction, followed by column chromatography for the isolation of ursolic acid, which was subsequently confirmed by GC-MS analysis. A major peak at retention time 38.25 min and a molecular ion peak at m/z 456 confirmed its identity. The anti-inflammatory properties of ursolic acid were assessed using protein denaturation and membrane stabilization tests, showing notable suppression in a dose-dependent manner that was on par with that of regular diclofenac. Moreover, the MTT assay was used to evaluate its anticancer effectiveness against colon cancer cell lines (HT-29), where ursolic acid exhibited distinguished cytotoxicity with an IC50 value suggestive of strong anti-proliferative effects. To gain mechanistic insights, molecular docking studies were performed using AutoDock, targeting COX-2 (PDB ID: 1CX2) for inflammation and TNIK (PDB ID: 6GUE) for colon cancer. Ursolic acid displayed high binding affinities and stable interactions with both targets, indicating its potential dual inhibitory action. These results support the therapeutic relevance of ursolic acid from H. diffusa as a promising natural compound for managing inflammation and colon cancer.
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- Y.J. Surh, Nat. Rev. Cancer, 3, 768 (2003); https://doi.org/10.1038/nrc1189
- K.B. Michels, E. Giovannucci, A.T. Chan, R. Singhania, C.S. Fuchs and W.C. Willett, Cancer Res., 66, 3942 (2006); https://doi.org/10.1158/0008-5472.CAN-05-3637
- A.R. Amin, O. Kucuk, F.R. Khuri and D.M. Shin, J. Clin. Oncol., 27, 2712 (2009); https://doi.org/10.1200/JCO.2008.20.6235
- F. Tosetti, D.M. Noonan and A. Albini, Int. J. Cancer, 125, 1997 (2009); https://doi.org/10.1002/ijc.24677
- F.R. Greten and S.I. Grivennikov, Immunity, 51, 27 (2019); https://doi.org/10.1016/j.immuni.2019.06.025
- Y. Xie, F. Liu, Y. Wu, Y. Zhu, Y. Jiang, Q. Wu, Z. Dong and K. Liu, Mol. Cancer, 24, 51 (2025); https://doi.org/10.1186/s12943-025-02243-8
- M.H. Pan, G. Ghai and C.T. Ho, Mol. Nutr. Food Res., 52, 43 (2008); https://doi.org/10.1002/mnfr.200700380
- J. Qin, W. Wang and R. Zhang, Chin. J. Nat. Med., 15, 401 (2017); https://doi.org/10.1016/S1875-5364(17)30062-6
- A. Narayanankutty, Curr. Mol. Pharmacol., 14, 760 (2021); https://doi.org/10.2174/1874467214666210120152657
- P. Pandey, S. Lakhanpal, D. Mahmood, H.N. Kang, B. Kim, S. Kang, J. Choi, M. Choi, S. Pandey, M. Bhat, S. Sharma, F. Khan, M.N. Park and B. Kim, Front. Pharmacol., 15, 1513422 (2025); https://doi.org/10.3389/fphar.2024.1513422
- S. Terracciano, M. Aquino, M. Rodriquez, M.C. Monti, A. Casapullo, R. Riccio and L. Gomez-Paloma, Curr. Med. Chem., 13, 1947 (2006); https://doi.org/10.2174/092986706777585095
- F. Akhter, M.S. Rahman, G.M. Al Amin, M.I. Miah, and Y.-S. Koh, J. Bacteriol. Virol., 51, 149 (2021); https://doi.org/10.4167/jbv.2021.51.4.149
- H.A. Saleh, M.H. Yousef and A. Abdelnaser, Front. Immunol., 12, 606069 (2021); https://doi.org/10.3389/fimmu.2021.606069
- J.A. Ngum, F.J. Tatang, M.H. Toumeni, S.N. Nguengo, U.S.F. Simo, C.F. Mezajou, C. Kameni, N. Njike-Ngongang, M.F. Tchinda, F.F. Dongho-Dongmo, M. Akami, A.R. Ngane Ngono and O. Tamgue, Front. Pharmacol., 14, 1144836 (2023); https://doi.org/10.3389/fphar.2023.1144836
- A. Duvoix, R. Blasius, S. Delhalle, M. Schnekenburger, F. Morceau, E. Henry, M. Dicato and M. Diederich, Cancer Lett., 223, 181 (2005); https://doi.org/10.1016/j.canlet.2004.09.041
- V. Nandakumar, T. Singh and S.K. Katiyar, Cancer Lett., 269, 378 (2008); https://doi.org/10.1016/j.canlet.2008.03.049
- L. Reddy, B. Odhav and K.D. Bhoola, Pharmacol. Ther., 99, 1 (2003); https://doi.org/10.1016/S0163-7258(03)00042-1
- V. Benetou, P. Orfanos, P. Lagiou, D. Trichopoulos, P. Boffetta and A. Trichopoulou, Cancer Epidemiol. Biomarkers Prev., 17, 387 (2008); https://doi.org/10.1158/1055-9965.EPI-07-2665
- N.D. Freedman, Y. Park, A.F. Subar, A.R. Hollenbeck, M.F. Leitzmann, A. Schatzkin and C.C. Abnet, Int. J. Cancer, 122, 2330 (2008); https://doi.org/10.1002/ijc.23319
- B.M. Schmidt, J.W. Erdman Jr. and M.A. Lila, Cancer Lett., 231, 240 (2006); https://doi.org/10.1016/j.canlet.2005.02.003
- M.A. Shammas, P. Neri, H. Koley, R.B. Batchu, R.C. Bertheau, V. Munshi, R. Prabhala, M. Fulciniti, Y.T. Tai, S.P. Treon, R.K. Goyal, K.C. Anderson and N.C. Munshi, Blood, 108, 2804 (2006); https://doi.org/10.1182/blood-2006-05-022814
- R.P. Singh, A. Tyagi, G. Sharma, S. Mohan and R. Agarwal, Clin. Cancer Res., 14, 300 (2008); https://doi.org/10.1158/1078-0432.CCR-07-1565
- K.H. Kwon, A. Barve, S. Yu, M.T. Huang and A.N. Kong, Acta Pharmacol. Sin., 28, 1409 (2007); https://doi.org/10.1111/j.1745-7254.2007.00694.x
- S. Mercadante, G. Bellavia, A.L. Cascio, M. Dabbene, G. di Silvestre, A. Casuccio, B. Orlando, T. Favara, C. Scibilia, M. Gueci, L. Adamoli, M. Mauceri, A. de Lisi, M.L. Mauro and G. Pirajno, Support. Care Cancer, 30, 2003 (2022); https://doi.org/10.1007/s00520-021-06580-4
- J.H. Martin and J. Patel, Intern. Med. J., 52, 1677 (2022); https://doi.org/10.1111/imj.15922
- M.H. Pan, Y.S. Chiou, M.L. Tsai and C.T. Ho, J. Tradit. Complement. Med., 1, 8 (2011); https://doi.org/10.1016/S2225-4110(16)30052-9
- P. Bharathy and V. V. Thanikachalam, Pharmacol. Res. Mod. Chin. Med., 14, 100565 (2025); https://doi.org/10.1016/j.prmcm.2024.100565
- C. Tao and C.M. Taylor, in eds.: Z.Y. Wu, P.H. Raven and D.Y. Hong, Rubiaceae. In: Flora of China; Science Press: Beijing, China; vol. 19, pp. 147–174 (2011).
- C.J. Hu, J. He, G.Z. Li, P.P. Fang, J.D. Xie, Y.W. Ding, Y.Q. Mao and K.F. Hu, Comput. Methods Programs Biomed., 174, 1 (2019); https://doi.org/10.1016/j.cmpb.2018.10.019
- L. Ou, M. Li and Y. Hou, Heliyon, 10, e28833 (2024); https://doi.org/10.1016/j.heliyon.2024.e28833
- X.G. Zhang, Ph.D. Dissertation, Isolation and Characterisation of the Anti-Tumour Activity of Some Chinese Plants Used in Cancer Treatment, The University of Manchester, U.K. (1995).
- S. Wang, N. Yin, Y. Li, Z. Ma, W. Lin, L. Zhang, Y. Cui, J. Xia and L. Geng, Front. Pharmacol., 15, 1355531 (2024); https://doi.org/10.3389/fphar.2024.1355531
- J. Shao, G. Gong and L. Trombetta, in eds.: W. Cho, An Evidence-Based Perspective of Hedyotis diffusa or Oldenlandia diffusa (Spreading Hedyotis) for Cancer Patients; In: Evidence-based Anticancer Materia Medica, Dordrecht: Springer, pp. 123–136 (2011).
- L. Xu, Y. Li, J. Ji, Y. Lai, J. Chen, T. Ding, H. Li, B. Ding and W. Ge, J. Ethnopharmacol., 298, 115597 (2022); https://doi.org/10.1016/j.jep.2022.115597
- T. Efferth, P.C. Li, V.S. Konkimalla and B. Kaina, Trends Mol. Med., 13, 353 (2007); https://doi.org/10.1016/j.molmed.2007.07.001
- J. Lin, Q. Li, H. Chen, H. Lin, Z. Lai and J. Peng, Oncol. Lett., 9, 1962 (2015); https://doi.org/10.3892/ol.2015.2956
- P. Zhang, B. Zhang, J. Gu, L. Hao, F. Hu and C. Han, Cell Biochem. Biophys., 72, 783 (2015); https://doi.org/10.1007/s12013-015-0532-9
- Ł. Woźniak, S. Skąpska and K. Marszałek, Molecules, 20, 20614 (2015); https://doi.org/10.3390/molecules201119721
- M.K. Shanmugam, X. Dai, A.P. Kumar, B.K. Tan, G. Sethi and A. Bishayee, Biochem. Pharmacol., 85, 1579 (2013); https://doi.org/10.1016/j.bcp.2013.03.006
- R. Samineni, P. Samathoti, S.A. Gouru, A. Khan, P.P. Sp, K. Manda, V.K. M and N. Podila, Biomed. Pharmacol. J., 17, 1769 (2024); https://doi.org/10.13005/bpj/2982
- W. Ahmad, M.A. Ansari, A. Alsayari, D. Almaghaslah, S. Wahab, M.N. Alomary, Q.M.S. Jamal, F.A. Khan, A. Ali, P. Alam and A.Y. Elderdery, Pharmaceuticals, 15, 1348 (2022); https://doi.org/10.3390/ph15111348
- R. Chen, J. He, X. Tong, L. Tang and M. Liu, Molecules, 21, 710 (2016); https://doi.org/10.3390/molecules21060710
- M.C. Wei and Y.C. Yang, Sep. Purif. Technol., 130, 182 (2014); https://doi.org/10.1016/j.seppur.2014.04.029
- J. Manoharan, P.S. Kumari, V.R. Punithavathi, M.K.D. Jothinathan, A. Arulanandam and D. Anbumani, Res. J. Pharm. Technol., 17, 5931 (2024); https://doi.org/10.52711/0974-360X.2024.00899
- B. Shah, P. Modi and S.R. Sagar, Life Sci., 252, 117652 (2020); https://doi.org/10.1016/j.lfs.2020.117652
- M.A. Abdelgawad, M.M. Al-Sanea, A. Musa, M. Elmowafy, A.K. El-Damasy, A.A. Azouz, M.M. Ghoneim and R.B. Bakr, J. Inflamm. Res., 15, 451 (2022); https://doi.org/10.2147/JIR.S343263
- F. Surrel, I. Jemel, E. Boilard, J.G. Bollinger, C. Payré, C.M. Mounier, K.A. Talvinen, V.J. Laine, T.J. Nevalainen, M.H. Gelb and G. Lambeau, Mol. Pharmacol., 76, 778 (2009); https://doi.org/10.1124/mol.108.053371
- H.Y. Hung, K.C. Cheng, P.C. Kuo, I.T. Chen, Y.C. Li, T.L. Hwang, S.H. Lam and T.S. Wu, Antioxidants, 11, 335 (2022); https://doi.org/10.3390/antiox11020335
- J. Lin, Y. Chen, L. Wei, X. Chen, W. Xu, Z. Hong, T.J. Sferra and J. Peng, Int. J. Oncol., 37, 1331 (2010); https://doi.org/10.3892/ijo_00000686
- Y. Yang, P. Liu, M. Zhou, L. Yin, M. Wang, T. Liu, X. Jiang and H. Gao, Biochim. Biophys. Acta Mol. Basis Dis., 1870, 166880 (2024); https://doi.org/10.1016/j.bbadis.2023.166880
- M. Yasir, J. Park, E.T. Han, W.S. Park, J.H. Han, Y.S. Kwon, H.J. Lee and W. Chun, ACS Omega, 8, 34160 (2023); https://doi.org/10.1021/acsomega.3c05425
References
Y.J. Surh, Nat. Rev. Cancer, 3, 768 (2003); https://doi.org/10.1038/nrc1189
K.B. Michels, E. Giovannucci, A.T. Chan, R. Singhania, C.S. Fuchs and W.C. Willett, Cancer Res., 66, 3942 (2006); https://doi.org/10.1158/0008-5472.CAN-05-3637
A.R. Amin, O. Kucuk, F.R. Khuri and D.M. Shin, J. Clin. Oncol., 27, 2712 (2009); https://doi.org/10.1200/JCO.2008.20.6235
F. Tosetti, D.M. Noonan and A. Albini, Int. J. Cancer, 125, 1997 (2009); https://doi.org/10.1002/ijc.24677
F.R. Greten and S.I. Grivennikov, Immunity, 51, 27 (2019); https://doi.org/10.1016/j.immuni.2019.06.025
Y. Xie, F. Liu, Y. Wu, Y. Zhu, Y. Jiang, Q. Wu, Z. Dong and K. Liu, Mol. Cancer, 24, 51 (2025); https://doi.org/10.1186/s12943-025-02243-8
M.H. Pan, G. Ghai and C.T. Ho, Mol. Nutr. Food Res., 52, 43 (2008); https://doi.org/10.1002/mnfr.200700380
J. Qin, W. Wang and R. Zhang, Chin. J. Nat. Med., 15, 401 (2017); https://doi.org/10.1016/S1875-5364(17)30062-6
A. Narayanankutty, Curr. Mol. Pharmacol., 14, 760 (2021); https://doi.org/10.2174/1874467214666210120152657
P. Pandey, S. Lakhanpal, D. Mahmood, H.N. Kang, B. Kim, S. Kang, J. Choi, M. Choi, S. Pandey, M. Bhat, S. Sharma, F. Khan, M.N. Park and B. Kim, Front. Pharmacol., 15, 1513422 (2025); https://doi.org/10.3389/fphar.2024.1513422
S. Terracciano, M. Aquino, M. Rodriquez, M.C. Monti, A. Casapullo, R. Riccio and L. Gomez-Paloma, Curr. Med. Chem., 13, 1947 (2006); https://doi.org/10.2174/092986706777585095
F. Akhter, M.S. Rahman, G.M. Al Amin, M.I. Miah, and Y.-S. Koh, J. Bacteriol. Virol., 51, 149 (2021); https://doi.org/10.4167/jbv.2021.51.4.149
H.A. Saleh, M.H. Yousef and A. Abdelnaser, Front. Immunol., 12, 606069 (2021); https://doi.org/10.3389/fimmu.2021.606069
J.A. Ngum, F.J. Tatang, M.H. Toumeni, S.N. Nguengo, U.S.F. Simo, C.F. Mezajou, C. Kameni, N. Njike-Ngongang, M.F. Tchinda, F.F. Dongho-Dongmo, M. Akami, A.R. Ngane Ngono and O. Tamgue, Front. Pharmacol., 14, 1144836 (2023); https://doi.org/10.3389/fphar.2023.1144836
A. Duvoix, R. Blasius, S. Delhalle, M. Schnekenburger, F. Morceau, E. Henry, M. Dicato and M. Diederich, Cancer Lett., 223, 181 (2005); https://doi.org/10.1016/j.canlet.2004.09.041
V. Nandakumar, T. Singh and S.K. Katiyar, Cancer Lett., 269, 378 (2008); https://doi.org/10.1016/j.canlet.2008.03.049
L. Reddy, B. Odhav and K.D. Bhoola, Pharmacol. Ther., 99, 1 (2003); https://doi.org/10.1016/S0163-7258(03)00042-1
V. Benetou, P. Orfanos, P. Lagiou, D. Trichopoulos, P. Boffetta and A. Trichopoulou, Cancer Epidemiol. Biomarkers Prev., 17, 387 (2008); https://doi.org/10.1158/1055-9965.EPI-07-2665
N.D. Freedman, Y. Park, A.F. Subar, A.R. Hollenbeck, M.F. Leitzmann, A. Schatzkin and C.C. Abnet, Int. J. Cancer, 122, 2330 (2008); https://doi.org/10.1002/ijc.23319
B.M. Schmidt, J.W. Erdman Jr. and M.A. Lila, Cancer Lett., 231, 240 (2006); https://doi.org/10.1016/j.canlet.2005.02.003
M.A. Shammas, P. Neri, H. Koley, R.B. Batchu, R.C. Bertheau, V. Munshi, R. Prabhala, M. Fulciniti, Y.T. Tai, S.P. Treon, R.K. Goyal, K.C. Anderson and N.C. Munshi, Blood, 108, 2804 (2006); https://doi.org/10.1182/blood-2006-05-022814
R.P. Singh, A. Tyagi, G. Sharma, S. Mohan and R. Agarwal, Clin. Cancer Res., 14, 300 (2008); https://doi.org/10.1158/1078-0432.CCR-07-1565
K.H. Kwon, A. Barve, S. Yu, M.T. Huang and A.N. Kong, Acta Pharmacol. Sin., 28, 1409 (2007); https://doi.org/10.1111/j.1745-7254.2007.00694.x
S. Mercadante, G. Bellavia, A.L. Cascio, M. Dabbene, G. di Silvestre, A. Casuccio, B. Orlando, T. Favara, C. Scibilia, M. Gueci, L. Adamoli, M. Mauceri, A. de Lisi, M.L. Mauro and G. Pirajno, Support. Care Cancer, 30, 2003 (2022); https://doi.org/10.1007/s00520-021-06580-4
J.H. Martin and J. Patel, Intern. Med. J., 52, 1677 (2022); https://doi.org/10.1111/imj.15922
M.H. Pan, Y.S. Chiou, M.L. Tsai and C.T. Ho, J. Tradit. Complement. Med., 1, 8 (2011); https://doi.org/10.1016/S2225-4110(16)30052-9
P. Bharathy and V. V. Thanikachalam, Pharmacol. Res. Mod. Chin. Med., 14, 100565 (2025); https://doi.org/10.1016/j.prmcm.2024.100565
C. Tao and C.M. Taylor, in eds.: Z.Y. Wu, P.H. Raven and D.Y. Hong, Rubiaceae. In: Flora of China; Science Press: Beijing, China; vol. 19, pp. 147–174 (2011).
C.J. Hu, J. He, G.Z. Li, P.P. Fang, J.D. Xie, Y.W. Ding, Y.Q. Mao and K.F. Hu, Comput. Methods Programs Biomed., 174, 1 (2019); https://doi.org/10.1016/j.cmpb.2018.10.019
L. Ou, M. Li and Y. Hou, Heliyon, 10, e28833 (2024); https://doi.org/10.1016/j.heliyon.2024.e28833
X.G. Zhang, Ph.D. Dissertation, Isolation and Characterisation of the Anti-Tumour Activity of Some Chinese Plants Used in Cancer Treatment, The University of Manchester, U.K. (1995).
S. Wang, N. Yin, Y. Li, Z. Ma, W. Lin, L. Zhang, Y. Cui, J. Xia and L. Geng, Front. Pharmacol., 15, 1355531 (2024); https://doi.org/10.3389/fphar.2024.1355531
J. Shao, G. Gong and L. Trombetta, in eds.: W. Cho, An Evidence-Based Perspective of Hedyotis diffusa or Oldenlandia diffusa (Spreading Hedyotis) for Cancer Patients; In: Evidence-based Anticancer Materia Medica, Dordrecht: Springer, pp. 123–136 (2011).
L. Xu, Y. Li, J. Ji, Y. Lai, J. Chen, T. Ding, H. Li, B. Ding and W. Ge, J. Ethnopharmacol., 298, 115597 (2022); https://doi.org/10.1016/j.jep.2022.115597
T. Efferth, P.C. Li, V.S. Konkimalla and B. Kaina, Trends Mol. Med., 13, 353 (2007); https://doi.org/10.1016/j.molmed.2007.07.001
J. Lin, Q. Li, H. Chen, H. Lin, Z. Lai and J. Peng, Oncol. Lett., 9, 1962 (2015); https://doi.org/10.3892/ol.2015.2956
P. Zhang, B. Zhang, J. Gu, L. Hao, F. Hu and C. Han, Cell Biochem. Biophys., 72, 783 (2015); https://doi.org/10.1007/s12013-015-0532-9
Ł. Woźniak, S. Skąpska and K. Marszałek, Molecules, 20, 20614 (2015); https://doi.org/10.3390/molecules201119721
M.K. Shanmugam, X. Dai, A.P. Kumar, B.K. Tan, G. Sethi and A. Bishayee, Biochem. Pharmacol., 85, 1579 (2013); https://doi.org/10.1016/j.bcp.2013.03.006
R. Samineni, P. Samathoti, S.A. Gouru, A. Khan, P.P. Sp, K. Manda, V.K. M and N. Podila, Biomed. Pharmacol. J., 17, 1769 (2024); https://doi.org/10.13005/bpj/2982
W. Ahmad, M.A. Ansari, A. Alsayari, D. Almaghaslah, S. Wahab, M.N. Alomary, Q.M.S. Jamal, F.A. Khan, A. Ali, P. Alam and A.Y. Elderdery, Pharmaceuticals, 15, 1348 (2022); https://doi.org/10.3390/ph15111348
R. Chen, J. He, X. Tong, L. Tang and M. Liu, Molecules, 21, 710 (2016); https://doi.org/10.3390/molecules21060710
M.C. Wei and Y.C. Yang, Sep. Purif. Technol., 130, 182 (2014); https://doi.org/10.1016/j.seppur.2014.04.029
J. Manoharan, P.S. Kumari, V.R. Punithavathi, M.K.D. Jothinathan, A. Arulanandam and D. Anbumani, Res. J. Pharm. Technol., 17, 5931 (2024); https://doi.org/10.52711/0974-360X.2024.00899
B. Shah, P. Modi and S.R. Sagar, Life Sci., 252, 117652 (2020); https://doi.org/10.1016/j.lfs.2020.117652
M.A. Abdelgawad, M.M. Al-Sanea, A. Musa, M. Elmowafy, A.K. El-Damasy, A.A. Azouz, M.M. Ghoneim and R.B. Bakr, J. Inflamm. Res., 15, 451 (2022); https://doi.org/10.2147/JIR.S343263
F. Surrel, I. Jemel, E. Boilard, J.G. Bollinger, C. Payré, C.M. Mounier, K.A. Talvinen, V.J. Laine, T.J. Nevalainen, M.H. Gelb and G. Lambeau, Mol. Pharmacol., 76, 778 (2009); https://doi.org/10.1124/mol.108.053371
H.Y. Hung, K.C. Cheng, P.C. Kuo, I.T. Chen, Y.C. Li, T.L. Hwang, S.H. Lam and T.S. Wu, Antioxidants, 11, 335 (2022); https://doi.org/10.3390/antiox11020335
J. Lin, Y. Chen, L. Wei, X. Chen, W. Xu, Z. Hong, T.J. Sferra and J. Peng, Int. J. Oncol., 37, 1331 (2010); https://doi.org/10.3892/ijo_00000686
Y. Yang, P. Liu, M. Zhou, L. Yin, M. Wang, T. Liu, X. Jiang and H. Gao, Biochim. Biophys. Acta Mol. Basis Dis., 1870, 166880 (2024); https://doi.org/10.1016/j.bbadis.2023.166880
M. Yasir, J. Park, E.T. Han, W.S. Park, J.H. Han, Y.S. Kwon, H.J. Lee and W. Chun, ACS Omega, 8, 34160 (2023); https://doi.org/10.1021/acsomega.3c05425