Enhancing bacterial photodynamic inactivation through combined action of potassium iodide and cationic phthalocyanines

Sara R. D. Gamelas; Maria  Bartolomeu; Cátia Vieira; Maria A. F. Faustino; João P. C. Tomé; Augusto C. Tomé; Adelaide Almeida; Leandro M. O. Lourenço

Resumo

Infectious diseases remain a leading cause of death all around the world. Over the last three decades, the alarming and escalating emergence of antibiotic-resistant bacterial strains has caused some concern among the scientific community [1,2]. Photodynamic inactivation (PDI) emerges as an alternative for inactivating microorganisms, including bacteria [1–3]. The use of phthalocyanine (Pc) derivatives as photosensitizers (PS) in PDI has already proven effectiveness against various microorganisms [4]. Moreover, the addition of KI as a coadjutant can, in certain circumstances, enhance the efficiency of neutral, negative, and positively charged PS against Gram-negative and Gram-positive bacteria [2,4]. In this study will be demonstrated the effect of KI in PDI of E. coli and S. aureus with cationic Pcs bearing tris(trimethylammoniummethyl) or pyridinium-pyrazolyl groups.

Idioma original	English
Número de páginas	1
Estado da publicação	Publicado - nov. 2023
Evento	XXVII Encontro Luso Galego de Química - Centro de Congressos e Exposições da Fundação Dr. António Cupertino de Miranda, Porto Duração: 22 nov. 2023 → 24 nov. 2023 https://xxviilgq.events.chemistry.pt/pt

Conferência

Conferência	XXVII Encontro Luso Galego de Química
País/Território	Portugal
Cidade	Porto
Período	22/11/23 → 24/11/23
Endereço da Internet	https://xxviilgq.events.chemistry.pt/pt

Acesso ao documento

93924094Final published version, 110 KBLicença: Unspecified

http://hdl.handle.net/10400.14/46474Licença: Unspecified

CIIS: Centro de Investigação Interdisciplinar em Saúde
Barros, M. (PI), Rosa, N. (Investigador), Correia, M. J. (Investigador), Caldas, A. C. (Investigador), Amado, J. C. (Investigador), Figueiredo, A. S. (Investigador), Esteves, A. C. (Investigador), Mineiro, A. (Investigador), Abreu, A. M. (Investigador), Duarte, A. S. (Investigador), Almeida, S. F. (Investigador), Correia, A. (Investigador), Moura, A. (Investigador), Almeida, A. (Investigador), Araújo, B. (Investigador), Moura-Netto, C. (Investigador), Ferrito, C. (Investigador), Pais-Vieira, C. (Investigador), Festas, C. (Investigador), Marques-Vieira, C. (Investigador), Catré, D. (Investigador), Nunes, E. (Investigador), Jesus, É. (Investigador), Ribeiro, F. (Investigador), Rosário, F. (Investigador), Fernandes, G. (Investigador), Rato, J. R. (Bolseiro), Salgado, J. R. (Investigador), Neves-Amado, J. (Investigador), Amendoeira, J. (Investigador), Sá, L. (Investigador), Capelas, M. L. (Investigador), Vieira, M. M. (Investigador), Nunes, M. V. S. (Investigador), Cardoso, M. (Investigador), Veiga, N. J. (Investigador), Fonseca, P. (Investigador), Correia, P. N. (Investigador), Couto, P. (Investigador), Pontífice-Sousa, P. (Investigador), Ravasco, P. (Investigador), Carvalho, P. V. D. (Investigador), Alves, P. (Investigador), Melo, P. (Investigador), Silva, R. (Investigador), Canaipa, R. (Investigador), Noites, R. (Investigador), Rio, R. (Investigador), Almeida, S. (Investigador), Deodato, S. (Investigador), Caldeira, S. (Investigador), Silva, S. (Investigador), Borges, T. (Investigador), Silva, V. (Investigador), Charepe, Z. (Investigador), Rodrigues-Pires, F. (Voluntário), Veludo, F. (Investigador), Carmo, H. (Bolseiro), Romeiro, J. (Estudante), Melo, M. (Investigador), Braga, M. (Investigador), Amaral, T. (Investigador), Moreira, M. A. (Investigador), Guerra, N. (Estudante), Santos, P. (Investigador), Paço, S. (Estudante), Lynce, S. (Bolseiro), Miguel, S. (Estudante), Costa, T. (Investigador), Silva-Neves, V. (Investigador), Silva, A. (Investigador), Carvalho, A. R. (Investigador), Almeida, B. (Investigador), Figueiredo, C. (Investigador), Esteves, E. (Bolseiro), Araújo, F. M. (Investigador), Garcia, J. G. (Investigador), Santos, L. (Investigador), Santos, N. M. D. (Investigador), Lopes, P. (Investigador), Bornes, R. (Investigador), Silva, R. (Investigador), Costa, S. (Investigador), Silva, S. M. (Investigador), Marques, T. (Investigador), Almeida, A. (Investigador), Santos, M. (Bolseiro), Santos, P. (Investigador), Miguel, S. (Investigador), Mendes, K. (Investigador), Gomes, A. P. (Investigador), Henriques, J. M. P. (Investigador), Costa, H. A. F. P. (Investigador) & Ribeiro, P. (Investigador)
Fundação para a Ciência e a Tecnologia
1/01/20 → 31/12/24
Projeto

Citação

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title = "Enhancing bacterial photodynamic inactivation through combined action of potassium iodide and cationic phthalocyanines",

abstract = "Infectious diseases remain a leading cause of death all around the world. Over the last three decades, the alarming and escalating emergence of antibiotic-resistant bacterial strains has caused some concern among the scientific community [1,2]. Photodynamic inactivation (PDI) emerges as an alternative for inactivating microorganisms, including bacteria [1–3]. The use of phthalocyanine (Pc) derivatives as photosensitizers (PS) in PDI has already proven effectiveness against various microorganisms [4]. Moreover, the addition of KI as a coadjutant can, in certain circumstances, enhance the efficiency of neutral, negative, and positively charged PS against Gram-negative and Gram-positive bacteria [2,4]. In this study will be demonstrated the effect of KI in PDI of E. coli and S. aureus with cationic Pcs bearing tris(trimethylammoniummethyl) or pyridinium-pyrazolyl groups.",

author = "Gamelas, {Sara R. D.} and Maria Bartolomeu and C{\'a}tia Vieira and Faustino, {Maria A. F.} and Tom{\'e}, {Jo{\~a}o P. C.} and Tom{\'e}, {Augusto C.} and Adelaide Almeida and Louren{\c c}o, {Leandro M. O.}",

year = "2023",

month = nov,

language = "English",

note = "XXVII Encontro Luso Galego de Qu{\'i}mica ; Conference date: 22-11-2023 Through 24-11-2023",

url = "https://xxviilgq.events.chemistry.pt/pt",

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TY - CONF

T1 - Enhancing bacterial photodynamic inactivation through combined action of potassium iodide and cationic phthalocyanines

AU - Gamelas, Sara R. D.

AU - Bartolomeu, Maria

AU - Vieira, Cátia

AU - Faustino, Maria A. F.

AU - Tomé, João P. C.

AU - Tomé, Augusto C.

AU - Almeida, Adelaide

AU - Lourenço, Leandro M. O.

PY - 2023/11

Y1 - 2023/11

N2 - Infectious diseases remain a leading cause of death all around the world. Over the last three decades, the alarming and escalating emergence of antibiotic-resistant bacterial strains has caused some concern among the scientific community [1,2]. Photodynamic inactivation (PDI) emerges as an alternative for inactivating microorganisms, including bacteria [1–3]. The use of phthalocyanine (Pc) derivatives as photosensitizers (PS) in PDI has already proven effectiveness against various microorganisms [4]. Moreover, the addition of KI as a coadjutant can, in certain circumstances, enhance the efficiency of neutral, negative, and positively charged PS against Gram-negative and Gram-positive bacteria [2,4]. In this study will be demonstrated the effect of KI in PDI of E. coli and S. aureus with cationic Pcs bearing tris(trimethylammoniummethyl) or pyridinium-pyrazolyl groups.

AB - Infectious diseases remain a leading cause of death all around the world. Over the last three decades, the alarming and escalating emergence of antibiotic-resistant bacterial strains has caused some concern among the scientific community [1,2]. Photodynamic inactivation (PDI) emerges as an alternative for inactivating microorganisms, including bacteria [1–3]. The use of phthalocyanine (Pc) derivatives as photosensitizers (PS) in PDI has already proven effectiveness against various microorganisms [4]. Moreover, the addition of KI as a coadjutant can, in certain circumstances, enhance the efficiency of neutral, negative, and positively charged PS against Gram-negative and Gram-positive bacteria [2,4]. In this study will be demonstrated the effect of KI in PDI of E. coli and S. aureus with cationic Pcs bearing tris(trimethylammoniummethyl) or pyridinium-pyrazolyl groups.

M3 - Abstract

T2 - XXVII Encontro Luso Galego de Química

Y2 - 22 November 2023 through 24 November 2023

ER -

Enhancing bacterial photodynamic inactivation through combined action of potassium iodide and cationic phthalocyanines

Resumo

Conferência

Acesso ao documento

Impressão digital

Projetos

CIIS: Centro de Investigação Interdisciplinar em Saúde

Citação