Author Archives: Modulight Content

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Modulight wants to share high-quality scientific publications, white papers, application notes, and other articles. The articles shared are courtesy of the authoring researchers and groups and we're thankful for giving us the permission to honor their work this way. If you have something to share please drop us a line (see the contact form at Contact Us section).

Fluorescence-guided photoimmunotherapy for peritoneal carcinomatosis

Published in: SPIE BIOS 2024 Authors: Barry Liang, Sumiao Pang, Robert Perttilä, Chen-Hua Ma, Payal Srivastava, Brandon Gaitan, Aaron Sorrin, Nada Fadul, Idrisa Rahman, Zoe Ylöniemi, Dana Roque, Tayyaba Hasan, Petteri Uusimaa, Huang-Chiao Huang  Published in: SPIE BIOS 2024 Authors: Barry Liang, Sumiao Pang, Robert Perttilä, Chen-Hua Ma, Payal Srivastava, Brandon Gaitan, Aaron Sorrin, Nada Fadul, Idrisa Rahman, Zoe Ylöniemi, Dana Roque, Tayyaba Hasan, Petteri Uusimaa, Huang-Chiao Huang Peritoneal metastasis, incomplete resection, and drug resistance render advanced-stage ovarian cancer virtually incurable with current surgical and chemotherapy approaches. Photoimmunotherapy is increasingly used to treat unresectable metastases, but many innovations are lost in translation due to heterogeneous treatment effects. This study integrates targeted nanotechnology, fluorescence-guided intervention, and a medical laser system to Continue reading →

Automated drug detection and dynamic measurement prioritization with medical laser platform

Published in: SPIE BIOS 2024 Authors: Henri Auvinen, Lassi Luokkanen, Zoe Ylöniemi, Natalia Leinonen, Ana Colucci, Petteri Uusimaa  Published in: SPIE BIOS 2024 Authors: Henri Auvinen, Lassi Luokkanen, Zoe Ylöniemi, Natalia Leinonen, Ana Colucci, Petteri Uusimaa Monitoring treatment through spectral data enables adjusting treatment in real-time for each patient separately, in line with the trend for personalized medicine. Modulight ML7710 laser can simultaneously measure spectral data from up to 8 different locations in tumor tissue. The laser with this optical monitoring feature is currently being tested in glioblastoma trials in Germany where patients receive photoimmunotherapy and treatment is tailored through spectral monitoring of Continue reading →

Distributed Bragg Reflector (DBR) Laser Diodes

Introduction to DRB lasers Distributed Bragg Reflector (DBR) laser diodes are a class of single-frequency monolithic semiconductor lasers. Monolithic semiconductor lasers in general are small in size, mechanically robust, and have good power conversion efficiency. They also provide opportunities for hybrid integration with photonic integrated circuits (PICs). This application note provides an overview of DBR lasers, their principles of operation, their modal behavior, and their diverse applications. Principles of DBR Laser Operation A DBR laser is a semiconductor laser with one or several quantum wells Continue reading →

Modulight launches ML6600 for Flow Cytometry and Quantum Computing

Next week at Photonics West 2024, Modulight will unveil significant new additions to the ML6600 laser solution platform. These new innovations include a specialized laser engine tailored for Flow Cytometry applications, and advanced DBR laser cores designed specifically for the Quantum Computing market. Our #LaserFamily are presenting 11 conference papers plus participating in a technical panel, across the Photonics West conferences BIOS, OPTO, LASE and QUANTUM WEST. You can see the list here. ML6600 for Flow Cytometry – Laser engine with active beam steering The newest product utilizing the ML6600 platform is a specialized laser engine for the Continue reading →Next week at Photonics West 2024, Modulight will unveil significant new additions to the ML6600 laser solution platform. These new innovations include a specialized laser engine tailored for Flow Cytometry applications, and advanced DBR laser cores designed specifically for the Quantum Computing market. Our #LaserFamily are presenting 11 conference papers plus participating in a technical panel, across the Photonics West conferences BIOS, OPTO, LASE and QUANTUM WEST. You can see the list here. ML6600 for Flow Cytometry – Laser engine with active beam steering The newest product utilizing the ML6600 platform is a specialized laser engine for the Continue reading →

Modulight Spotlights: LASER-SHARP RESEARCH – December 2023

Modulight Spotlights: LASER-SHARP RESEARCH – December 2023 Organic compounds are one of the leading causes of water pollution. Rhodamine 6G is a commonly used dye in the food and textile industries and can cause cancer when consumed in contaminated water. To tackle this problem, Professor T. Nyokong’s team at Rhodes University studied photocatalysis with ML7710 for degrading rhodamine, and showed increased degradation efficiency when photocatalysis was combined with ultrasound (sonocatalysis). This Laser-Sharp study offers a new method for more efficient degradation of organic pollutants for environmental Continue reading →

Red-Light Activation of a Microtubule Polymerization Inhibitor via Amide Functionalization of the Ruthenium Photocage

Published in: Angew Chem Int Ed Authors: Ludovic Bretin, Yurii Husiev, Vadde Ramu, Liyan Zhang, Matthijs Hakkennes, Selda Abyar, Andrew C. Johns, Sylvia E. Le Dévédec, Tania Betancourt, Alexander Kornienko, Sylvestre Bonnet Leiden University A ruthenium-based compound was developed for PACT (photoactivated chemotherapy), which unlike most existing PACT compounds, can be also activated with clinically relevant longer (red) wavelength of light. ML6600 was used for in vivo experiments to superficially activate PACT compound in subcutaneous tumor comparing green and red wavelengths. The tumor volume reduction was Continue reading →

Modulight Spotlights: LASER-SHARP RESEARCH – November 2023

 Modulight Spotlights: LASER-SHARP RESEARCH – November 2023 The development of modern antibiotics is recognized as one of the major achievements of medicine and has saved millions of lives. However, many infectious agents have developed resistance to antibiotics over time, and defining new antibiotic targets has been difficult since very few genes are essential for pathogens. To combat this growing problem, Professor Timothy Haystead’s team at Duke University developed a novel light-based antimicrobial strategy that targets non-essential enzyme on the surface of bacteria. Light activation was Continue reading →

Targeting Borrelia burgdorferi HtpG with a berserker molecule, a strategy for anti-microbial development

Published in: Cell Chemical Biology Authors: Dave L. Carlson, Mark Kowalewski, Khaldon Bodoor, Matthew R. Redinbo, Neil Spector, Timothy A.J. Haystead Duke UniversityPublished in: Cell Chemical Biology Authors: Dave L. Carlson, Mark Kowalewski, Khaldon Bodoor, Matthew R. Redinbo, Neil Spector, Timothy A.J. Haystead Duke University Conventional antimicrobial discovery relies on targeting essential enzymes in pathogenic organisms, contributing to a paucity of new antibiotics to address resistant strains. Here, by targeting a non-essential enzyme, Borrelia burgdorferi HtpG, to deliver lethal payloads, we expand what can be considered druggable within any pathogen. We synthesized HS-291, an HtpG inhibitor tethered to the photoactive toxin verteporfin. Reactive oxygen species, generated by light, enables Continue reading →

Modulight Spotlights: LASER-SHARP RESEARCH – October 2023

 Modulight Spotlights: LASER-SHARP RESEARCH – October 2023 ​Antimicrobial resistance is an increasing healthcare problem, with new effective treatment strategies urgently needed. Professor Mitsunaga and team at The Jikei University Medical School, Japan, describe a promising treatment called photoimmuno-antimicrobial strategy (PIAS) in a new Nature publication. Detailed instructions how to design and implement the treatment are given, with Modulight’s ML7710 and ML6600 series lasers validated for drug activation in the protocol. This treatment enables targeted elimination of different microbes, regardless of the species or drug resistance Continue reading →

Photoimmunotechnology as a powerful biological tool for molecular-based elimination of target cells and microbes, including bacteria, fungi and viruses

Published in: Nature Protocols Authors: Tadayuki Iwase, Kimihiro Ito, Takashi Nishimura, Kei Miyakawa, Akihide Ryo, Hisataka Kobayashi, Makoto Mitsunaga The Jikei University School of Medicine  Published in: Nature Protocols Authors: Tadayuki Iwase, Kimihiro Ito, Takashi Nishimura, Kei Miyakawa, Akihide Ryo, Hisataka Kobayashi, Makoto Mitsunaga The Jikei University School of Medicine Microbial pathogens, including bacteria, fungi and viruses, can develop resistance to clinically used drugs; therefore, finding new therapeutic agents is an ongoing challenge. Recently, we reported the photoimmuno-antimicrobial strategy (PIAS), a type of photoimmunotechnology, that enables molecularly targeted elimination of a wide range of microbes, including the viral pathogen severe acute respiratory syndrome coronavirus 2 and the multidrug-resistant bacterial pathogen Continue reading →