Tag Archives: 808 nm

Photobiomodulation for pain treatment using ML6600

March 15, 2024 by Modulight Content
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Background Photobiomodulation with low-level laser or light therapy is an effective treatment for pain. It has various effects, such as analgesic (pain-relieving) effects, anti-inflammatory effects, tissue regeneration promoting effects, and wound healing effects. Photobiomodulation can be used to relief both acute and chronic pain and has the advantage of being noninvasive and safe. Earlier studies have shown that photobiomodulation affects the activity of pain-transmitting nerves, even though the mechanisms are not fully understood. Because lasers are scattered and absorbed by biological tissues, the laser intensity Continue reading →Customer case University of Toyama is a Japanese national university located in Toyama City and Takaoka City and established in 1949. It is comprised of 3 former national universities Toyama University, Toyama Medical and Pharmaceutical University, and Takaoka National College. Naoya Ishibashi Daisuke Uta Modulight products: ML6600 Laser use: Studying pain treatment with photobiomodulation. Links to articles:     Background Photobiomodulation with low-level laser or light therapy is an effective treatment for pain. It has various effects, such as analgesic (pain-relieving) effects, anti-inflammatory effects, tissue regeneration Continue reading →

Development of thermosensitive liposomes with the help of ML8500

March 13, 2024 by Modulight Content
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Background The proper delivery and release of therapeutic drugs to a specific site or cell type is one of the main challenges in the treatment of diseases. Liposomes, which are vesicles composed of lipids, serve as carriers for drug delivery thanks to their long circulation time. This results to reduced toxicity in healthy tissues and improved therapeutic efficacy of encapsulated drugs. However, conventional liposomes can often be even too stabile, leading to insufficient drug release at the target site. Light activation can offer a solution Continue reading →Customer case Pharmaceutical Nanotechnology Group at University of Helsinki is specialized in top-level pharmaceutical research. Led by Professor Timo Laaksonen, the group focuses on controlled drug release and delivery using modern methods and materials. Particular interest lies in using light to both monitor nanomaterial behavior and to trigger e.g. drug release processes. Modulight products: ML8500, ML6600, MLAKIT   Prof. Timo Laaksonen Dr. Tatu Lajunen Laser use: Light-triggered drug release studies from light-activated liposomes. ML8500 with 808 nm wavelength was used to induce the release of calcein from liposomes under Continue reading →

Development of Robust Cationic Light-Activated Thermosensitive Liposomes: Choosing the Right Lipids

October 24, 2023 by Modulight Content
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Published in: Molecular Pharmaceutics Authors: Puja Gangurde, Mohammad Mahmoudzadeh, Zahra Gounani, Artturi Koivuniemi, Patrick Laurén, Tatu Lajunen, Timo Laaksonen  Published in: Molecular Pharmaceutics Authors: Puja Gangurde, Mohammad Mahmoudzadeh, Zahra Gounani, Artturi Koivuniemi, Patrick Laurén, Tatu Lajunen, Timo Laaksonen The study investigated the impact of different lipids on liposome stability. It was found that substituting unsaturated lipid with equal amount of saturated lipid, resulted in stable liposomes that were highly responsive to light triggered release. ML8500 was used for light-activated release of calcein from liposomes.   Read the article here

Fluorescence endoscopy

June 23, 2023 by Modulight
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Fluorescence endoscopyFluorescence endoscopy is the latest advancement in endoscopy technology, which uses specialized dyes to highlight specific areas of interest and provide better visibility and image quality during procedures. This technology has revolutionized the way we view the inside of the body, enabling doctors to obtain more detailed images of the gastrointestinal tract, lungs, bladder, and reproductive organs.Endoscopy Endoscopy is a powerful tool in diagnosing and treating a wide range of medical conditions. With its minimally invasive approach and high accuracy, it has become a Continue reading →

Medical laser platform to induce and monitor drug release from nano-constructs in vitro and in vivo

March 5, 2021 by Modulight Content
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Presented in: SPIE BIOS 2021 Authors: Zoe Ylöniemi, Johannes Kivelä, Elias Kokko, Robert Perttilä, Visa Kaivosoja, Lasse Orsila, Petteri Uusimaa    Presented in: SPIE BIOS 2021 Authors: Zoe Ylöniemi, Johannes Kivelä, Elias Kokko, Robert Perttilä, Visa Kaivosoja, Lasse Orsila, Petteri Uusimaa Fighting cancer involves more and more combination of modalities and drugs to maximize the long-term tumor resistance and cure. The rationale for combination therapy is to use treatment modalities or drug combinations that work by different mechanisms, decreasing the likelihood that resistant cancer cells will develop. The combination of light induced therapy like photodynamic therapy (PDT) and chemotherapy has the potential to overcome the limitations traditionally associated with light-based therapies and Continue reading →

Effects and side-effects of plasmonic photothermal therapy in brain tissue

February 18, 2019 by Modulight
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Published in: Cancer Nanotechnology Authors: Yue He, Kristoffer Laugesen, Dana Kamp, Salik Ahmad Sultan, Lene Broeng Oddershede, Liselotte Jauffred    Published in: Cancer Nanotechnology Authors: Yue He, Kristoffer Laugesen, Dana Kamp, Salik Ahmad Sultan, Lene Broeng Oddershede, Liselotte Jauffred   Laser was used for plasmonic photothermal therapy (PPTT) studies using gold nanoshells in brain tissue phantom and different porcine cerebral tissues. The electromagnetic field of a laser beam resonates with the plasmonic field of the nanoparticles, which absorb the incident light. The absorbed energy is dissipated as heat and causes hyperthermia in tumor.   Read the article here

The effect of light sensitizer localization on the stability of indocyanine green liposomes

August 28, 2018 by Modulight
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Published in: Journal of Controlled Release Authors: Tatu Lajunen, Riikka Nurmi, Danny Wilbie, Teemu Ruoslahti, Niklas G. Johansson, Ossi Korhonen, Tomasz Rog, Alex Bunker, Marika Ruponen, Arto Urtti    Published in: Journal of Controlled Release Authors: Tatu Lajunen, Riikka Nurmi, Danny Wilbie, Teemu Ruoslahti, Niklas G. Johansson, Ossi Korhonen, Tomasz Rog, Alex Bunker, Marika Ruponen, Arto Urtti   Targeted delivery of drugs using external light trigger is feasible in light-accessible organs, e.g. eye and skin, and it may offer several benefits compared to passive drug leakage from the drug carrier. The research group has used ML6600 laser and illumination kit (MLAKIT) for light-triggered release studies of calcein from ICG liposomes to optimize the liposome composition Continue reading →

Platinum nanoparticles: a non-toxic, effective and thermally stable alternative plasmonic material for cancer therapy and bioengineering

April 25, 2018 by Modulight
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Published in: Nanoscale Authors: Akbar Samadi, Henrik Klingberg, Liselotte Jauffred, Andreas Kjær, Poul Martin Bendix, Lene B. Oddershede    Published in: Nanoscale Authors: Akbar Samadi, Henrik Klingberg, Liselotte Jauffred, Andreas Kjær, Poul Martin Bendix, Lene B. Oddershede   Absorption of near infrared (NIR) light by metallic nanoparticles can cause extreme heating and is of interest for instance in cancer treatment since NIR light has a relatively large penetration depth into biological tissue. The research group has used laser to study effectiveness of platinum nanoparticles (PtNPs) for photothermal cancer therapy using ovarian cancer cell lines. They demonstrated that PtNPs are non-toxic themselves but upon laser Continue reading →