Effect of silicon nitride substrate thickness and surface treatment on thermal transport and local heating of gold nanoparticles under electron beam irradiation
A.Zulfiqar, M. Honkanen, M.Vippola, Nonappa
Publications
Publications 2026
Stabilization of ligand‐free small gold nanocluster within a metal–organic framework for enhanced hydrogen evolution and horseradish peroxidase‐mimicking catalysis in aqueous media
G. James, R. K. Aparna, Dhananjay, A. Karmakar, V. Tiwari, U. S. Manjunatha, S. S. Rose, A. Kumar, Nonappa, S. Yamazoe, S. Kikkawa, V. C. Prabhakaran, R. Narayanan, S. Kundu, T. Karmakar, S. Mandal
Biosynthetic optical waveguide interface integration using biomimetic - de novo design ELP for optoelectronic applications
A. Seisto, A. Hokkanen, P. Damlin, R. Pylkkänen, K. Kiiveri, A. S. Borisova, C. Kvarnström, X. Cheng, Z. Sun, Nonappa, P. Mohammadi
Superhydrophobic coatings by suspension flame spraying for outdoor conditions
R. Alikhanifaradonbeh, R. Jafari, M. Zohrevand, Nonappa., H. Koivuluoto
Publications 2025
Optical Fiber Sensor with Dynamically Responsive Cladding for Real-Time Breath Pattern Monitoring
P. Srikrishnarka, J. Patrakka, Z. Sun, Nonappa
Biopolymer optical fibers for high-sensitivity quantitative humidity monitoring
J. Patrakka, V. Hynninen, P. Huttunen, Nonappa
Atomically precise noble metal nanoclusters for engineering self-assembled two-dimensional materials
V. Sethumadhavan, Nonappa
Bimetallic Nanocluster-Based Light-Emitting Diodes With High External Quantum Efficiency and Saturated Red Emission
J. V. Rival , S. Chand, A. Jana, Nonappa, V. Biju, T. Pradeep, P. Rajamalli, E. S. Shibu
Morphology-Preserved Alloying in Anisotropic Gold Nanoparticles Using Atomically Precise Nanoclusters
A. Chakraborty, S. Manna, B. Mondal, M. Bodiuzzaman, A. Nagar, S. Chowdhury, T. Nayak, Nonappa, T. Pradeep
Robust self-healing metallo-supergels of folic acid: Potential sustainable gelator for oilfield applications
M. A. Marzabad, S. Chattopadhyay, S. Hietala, Nonappa, R. Marek and O. Jurček,
Nanofibrillar Cellulose Hydrogels with Anionic Surface Modifications for Modulating Macrophage Phenotype in 3D Culture
M. Heilala, R. Turpin, N. Pahimanolis, Nonappa, O. Ikkala, J. Klefström, P. M. Munne
Nanocluster reaction-driven in-situ transformation of colloidal nanoparticles to mesostructures
P. Bose, P. Srikrishnarka, M. Paatelainen, Nonappa, A. R. Kini, A. Som, T. Pradeep
Guided heterostructure growth of CoFe LDH on Ti3C2Tx MXene for durably high oxygen evolution activity
J. Sheng, J. Kang, P. Jiang, K. Meinander, X. Hong, H. Jiang, Nonappa, O. Ikkala, H. -P. Komsa, B. Peng, Z.-P. Lv
Publications 2024
Mechanically robust biopolymer optical fibers with enhanced performance in the near-infrared region
J. Patrakka, V. Hynninen, M. Lahtinen, A. Hokkanen, H. Orelma, Z. Sun, Nonappa
Invasion/chemotaxis- and extravasation-chip models for breast cancer bone metastasis
B. Firatligil-Yildirir , G. Bati-Ayaz, Nonappa, D.Pesen-Okvur, O. Yalcin-Ozuysal
Wearable sensors for physiological condition and activity monitoring
P. Srikrishnarka, J. Haapasalo, J. P. Hinestroza, Z. Sun, Nonappa
Seeing the supracolloidal assemblies in 3D: Unraveling high-resolution structures using electron tomography
Nonappa
In Situ TEM Imaging Reveals the Dynamic Interplay Between Attraction, Repulsion and Sequential Attraction-Repulsion in Gold Nanoparticles
A. Zulfiqar, M. Honkanen, Nonappa, M. Vippola
Interparticle antigalvanic reactions of atomically precise silver nanoclusters with plasmonic gold nanoparticles: Interfacial control of atomic exchange
P. Bose, J. Roy, V. Khokhar, B. Mondal, G. Natarajan, S. Manna, V. Yadav, A. Nyayban, S. S. R. K. C. Yamijala, Nonappa, T. Pradeep
The interplay of chromophore-spacer length in light-induced gold nanocluster self-assembly
R. V. Jose, Nonappa, E. S. Shibu
Accelerated Engineering of ELP‐based Materials through Hybrid Biomimetic‐De Novo Predictive Molecular Design
T. Laakko, A. Korkealaakso, B. Firatligil-Yildirir, P. Batys, V. Liljeström, A. Hokkanen, Nonappa, M. Penttilä, A. Laukkanen, A. Miserez, C. Södergård, P. Mohammadi
Platinum-Grafted Twenty-Five Atom Gold Nanoclusters for Robust Hydrogen Evolution
P. Mymoona, J. V. Rival, Nonappa, E. S. Shibu, C. Jeyabharathi
Golden plasmophores with tunable photoluminescence and outstanding thermal and photothermal stability
M. Gharib, A. J. Yates, S. Sanders, J. Gebauer, S. Graf, A. R. Ziefuß, Nonappa, G. Kassier, C. Rehbock, S. Barcikowski, H. Weller, A. Alabastri, P. Nordlander, W. J. Parak, I. Chakraborty
Efficient photocatalytic hydrogen production using in-situ polymerized gold nanocluster assemblies
D. Bera, S. Mahata, M. Biswas, K. Kumari, S. Rakshit, Nonappa, S. Ghosh, N. Goswami
Relationship between depth-wise refractive index and biomechanical properties of human articular cartilage
B. Khan, E. Nippolainen, F. Shahini, Nonappa, A. Popov, J. Töyräs, I. O. Afara,
Publications 2023
Precision nanoengineering for functional self-assemblies across length scales
Nonappa
Recent advances in lab-on-a-chip systems for breast cancer metastasis research
B. Firatligil-Yildirir, Ö. Yalcin-Ozuysal, Nonappa
Fibrin stiffness regulates phenotypic plasticity of metastatic breast cancer cells
M. Heilala, A. Lehtonen, O. Arasalo, A. Peura, J. Pokki, O. Ikkala, Nonappa, J. Klefström, P. M. Munne
In situ depletion-guided engineering of nanoshell-like gold nanocluster assemblies with enhanced peroxidase-like nanozyme activity
D. Bera, A. Mukhopadhyay, Nonappa, and N. Goswami
Refractive index of human articular cartilage varies with tissue structure and composition
B. Khan, E. Nippolainen, F. Shahini, J. Torniainen, S. Mikkonen, Nonappa, A. Popov, J. Töyräs, and I. Afara
Precision Nanocluster-Based Toroidal and Supertoroidal Frameworks Using Photocycloaddition-Assisted Dynamic Covalent Chemistry
K. M.Lakshmi, J. V. Rival, S. R. Nambiar, P. Sreeraj, C. Jeyabharathi, Nonappa, E. S. Shibu
Hydrogel lasers via supramolecular host–guest complexation
M. Paatelainen, M. Lahikainen, A. Berdin, K. Kuntze, W. M. Nau, Nonappa, A. Priimagi
Gold Au(I)6 clusters with ligand-derived atomic steric locking: Multifunctional optoelectrical properties and quantum coherence
S. Chandra, A. Sciortino, S. Das, F.l Ahmed, A. Jana, J. Roy, D. Li, V. Liljeström, H. Jiang, L.-S. Johansson, X.Chen, Nonappa, M. Cannas, T. Pradeep, B. Peng, R. H. A. Ras, Z. Sun, O. Ikkala, F. Messina
Core-Selective Silver-Doping of Gold Nanoclusters by Surface-Bound Sulphates on Colloidal Templates: From Synthetic Mechanism to Relaxation Dynamics
S. Chandra, A. Sciortino, S. Shandilya, L. Fang, X. Chen, Nonappa, H. Jiang, L.-S. Johansson, M. Cannas, J. Ruokolainen, R. H. A. Ras, F. Messina, B. Peng, O. Ikkala
Dissociative reactions of [Au25(SR)18]- at copper oxide nanoparticles and formation of aggregated nanostructures
J. Roy, B. Mondal, G. Vishwakarma, Nonappa, N. V. Sridharan, P. Krishnamurthi, T. Pradeep
Tunable reactivity of silver nanoclusters: Facile route to synthesize a range of bimetallic nanostructures
A. Chakraborty, M. Ma. Stanley, B. Mondal, Nonappa, M. Bodiuzzaman, P. Chakraborty, M. P. Kannan and T. Pradeep
Secondary ligand-induced orthogonal self-assembly of silver nanoclusters into superstructures with enhanced NIR emission
Sugi K. Shivan, Amritha P. Sandra, Nonappa Nonappa, Debasmita Ghosh, Jyoti Sarita Mohanty, M. P. Kannan, B. S. Sooraj, Pillalamarri Srikrishnarka, Jayoti Roy, Wakeel Ahmed Dar, T. Pradeep
Crown ether-capped gold nanoclusters as a multimodal platform for bioimaging
P. Obstarczyk, A. Pniakowska, Nonappa, M. P. Grzelczak, and J. Olesiak-Bańska
Publications 2022
Strong and Elastic Membranes via Hydrogen Bonding Directed Self-Assembly of Atomically Precise Nanoclusters
A. Som, A. Griffo, I. Chakraborty, H. Hähl, B. Mondal, A. Chakraborty, K. Jacobs, P. Laaksonen, O. Ikkala, T. Pradeep, Nonappa
From Precision Colloidal Hybrid Materials to Advanced Functional Assemblies
V. Linko, H. Zhang, Nonappa, M. A. Kostiainen, O. Ikkala
Triterpenoid Building Blocks for Functional Nanoscale Assemblies: A Review
Z. Özdemir, Nonappa, Z. Wimmer
Aging-induced structural transition of nanoscale oleanolic acid amphiphiles and selectivity against Gram-positive bacteria
Z. Özdemir, D. Saman, L. Bednarova, M. Pazderkova, L. Janovska, Nonappa, Z. Wimmer
Janus-type dendrimers based on highly branched fluorinated chains with tunable self-assembly and 19F nuclear magnetic resonance properties
M. Rosati, A. Acocella, A.Pizzi, G. Turtù, G. Neri, N. Demitri, Nonappa, G. Raffaini, B. Donnio, F. Zerbetto, F. B. Bombelli, G. Cavallo, P. Metrangolo
Carboxymethyl cellulose (CMC) optical fibers for environment sensing and short-range optical signal transmission
A. K. Jaiswal, A. Hokkanen, M. Kapulainen, A. Khakalo, Nonappa, O. Ikkala, H. Orelma
Shell-Isolated assembly of atomically precise nanoclusters on gold nanorods for integrated plasmonic-luminescent nanocomposites
A. Chakraborty, H. Dave, B. Mondal, Nonappa, E. Khatun, and T. Pradeep
Integration of carboxymethyl cellulose waveguides for smart textile optical sensorss
S. Guridi, A. Hokkanen, A. K. Jaiswal, Nonappa and P. Kääriäinen,
Cellulose optical fiber for sensing applications
A. Hokkanen, M. Kapulainen, A. K. Jaiswal, V. Hynninen, Nonappa, O. Ikkala, H. Orelma
Publications 2021
Compressive stress-mediated p38 activation required for ERα + phenotype in breast cancer
P. Munne, L. Martikainen, I. Räty, K. Bertula, Nonappa et al.
Bioinspired functionally graded composite assembled using cellulose nanocrystals and genetically engineered proteins with controlled biomineralization
P.Mohammadi, J.-A. Gandier, Nonappa, W. Wagermaier, A. Miserez, M. Penttilä
Luminescent gold nanocluster‐methylcellulose composite optical fibers with low attenuation coefficient and high photostability
V. Hynninen, S. Chandra, S. Das, M. Amini, Y. Dai, S. Lepikko, P. Mohammadi, S. Hietala, R. H. A. Ras, Z. Sun, O. Ikkala, Nonappa
Nanocellulose: Recent fundamental advances and emerging biological and biomimicking applications.
K. Heise, E. Kontturi, Y, Allahverdiyeva, T. Tammelin, M. B. Linder, Nonappa, O. Ikkala
Self‐assembly of precision noble Metal nanoclusters: Hierarchical structural complexity, colloidal superstructures, and applications
J. V. Rival, P. Mymoona, K. M. Lakshmi, Nonappa, T. Pradeep, E. S. Shibu
DNA origami templated growth of multilamellar lipid assemblies
S. Julin, Nonappa, B. Shen V. Linko M. A. Kostiainen
Rapid self-healing and thixotropic organogelation of amphiphilic oleanolic acid–spermine conjugates
Z. Özdemir, D. Šaman, K. Bertula, M. Lahtinen, L. Bednárová, M. Pazderková, L. Rárová, Nonappa, Z. Wimmer
Near-infrared chiral plasmonic microwires through precision assembly of gold nanorods on soft biotemplates
A. Chakraborty, Nonappa, B. Mondal, K. Chaudhari, H. Rekola, V. Hynninen, M. A. Kostiainen, R. H. A. Ras, T. Pradeep
68. Hexagonal microparticles from hierarchical self-organization of chiral trigonal Pd3L6 macrotetracycles
O. Jurcek, Nonappa, E. Kalenius, P. Jurcek,J.M. Linnanto, R. Puttreddy, H. Valkenier, N. Houbenov, M. Babiak, M. Peterek, A. P. Davis, R. Marek, K. Rissanen
67. Engineered protein cages for selective heparin encapsulation
S. Välimäki, Q. Liu, L. Schoonen, D. Vervoort, Nonappa, V. Linko, R. J. M. Nolte, J. C. M. van Hest, M. A. Kostiainen
66. Cylindrical zwitterionic particles via interpolyelectrolyte complexation on molecular polymer brushes
T. Pelras, Nonappa, C. S. Mahon, M. Müllner
65. Interference of phosphate in adsorption of arsenate and arsenite over confined metastable two-line ferrihydrite and magnetite
C. Sudhakar, S. Mukherjee, A. A. Kumar, G. Paramasivam, P. K. Meena, Nonappa, T. Pradeep
64. Experimental and simulation study of the solvent effects on the intrinsic properties of spherical lignin nanoparticles
T. Zou, Nonappa, M. Khavani, M. Vuorte, P. Penttilä, A. Zitting, J. J. Valle-Delgado, A. M. Elert, D. Silbernagl, M. Balakshin, M. Sammalkorpi, M. Österberg
63. Methylcellulose–cellulose nanocrystal composites for optomechanically tunable hydrogels and fibers
V. Hynninen, J. Patrakka, Nonappa
Publications 2020
62. Atom transfer between precision nanoclusters and polydispersed nanoparticles: A Facile route for monodispersed alloy nanoparticles and their superstructures
P. Bose, P. Chakraborty, J. S. Mohanty, Nonappa, A. R. Chowdhuri, E. Khatun, T. Ahuja, A. Mahendranath, T. Pradeep
61. Light-triggered reversible supracolloidal self-assembly of precision gold nanoclusters
J. V. Rival, Nonappa, E. S. Shibu
60. Luminescent gold nanoclusters for bioimaging applications
Nonappa
59. Self-healing, luminescent metallogelation driven by synergistic metallophilic and fluorine–fluorine interactions
K. Kolari, E. Bulatov, R. Tatikonda, K. Bertula, E. Kalenius, Nonappa, M. Haukka
58. Spermine amides of selected triterpenoid acids: dynamic supramolecular system formation influences the cytotoxicity of the drugs
U. Bildziukevich, M. Malík, Z. Özdemir, L. Rárová, L. Janovská, M. Šlouf, D. Šaman, J. Šarek, Nonappa, Z. Wimmer
Publications 2019
57. Strain-stiffening of agarose gels
K. Bertula, L. Martikainen, P. Munne, S. Hietala, J. Klefström, O. Ikkala, Nonappa
56. Phthalocyanine–Virus Nanofibers as Heterogeneous Catalysts for Continuous‐Flow Photo‐Oxidation Processes
E. Anaya‐Plaza, A. Aljarilla, G. Beaune, Nonappa, J. V .I. Timonen, A. de la Escosura, T. Torres, M. A. Kostiainen
55. In situ generation of chiroptically-active gold-peptide superstructures promoted by iodination
C. Pigliacelli, K. B. Sanjeeva, Nonappa, A. Pizzi, A. Gori, F. B. Bombelli, P. Metrangolo
54. Highly luminescent gold nanocluster frameworks
S. Chandra, Nonappa, G. Beaune, A. Som, S. Zhou, J. Lahtinen, H. Jiang, J. V. I. Timonen, O. Ikkala, R. H. A. Ras
53. Lyotropic liquid crystals and linear supramolecular polymers of end-functionalized oligosaccharides
T. T. T. Myllymäki, A. Guliyeva, A. Korpi, M. A. Kostiainen, V. Hynninen, Nonappa, P. Rannou, O. Ikkala, S. Halila
52. Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose
T. Pääkkönen, P. Spiliopoulos, Nonappa, K. S. Kontturi, P. Penttilä, M. Viljanen, K. Svedström, E. Kontturi
51. Methyl cellulose/cellulose nanocrystal nanocomposite fibers with high ductility
V. Hynninen, P. Mohammadi, W. Wagermaier, S. Hietala, M. B. Linder, O. Ikkala, Nonappa
50. DNA origami directed 3D nanoparticle superlattice via electrostatic assembly
S. Julin, A. Korpi, Nonappa, B. Shen, V. Liljeström, O. Ikkala, A. Keller, M. A. Kostiainen
49. Infinite coordination polymer networks: Metallogelation of aminopyridine conjugates and in situ silver nanoparticle formation.
R. Tatikonda, E. Bulatov, Z. Özdemir, Nonappa, M. Haukka.
48. Soft cellulose II nanospheres: sol–gel behaviour, swelling and material synthesis.
M. Beaumont, S. Rosenfeldt, B. L. Tardy, C. Gusenbauer, A. Khakalo, Nonappa, M. Opietnik, A. Potthast, O. J. Rojas, T. Rosenau
Publications 2018
47. Atomically Precise Nanocluster Assemblies Encapsulating Plasmonic Gold Nanorods
A. Chakraborty, A. C. Fernandez, A. Som, B. Mondal, G. Natarajan, G. Paramasivam, T. Lahtinen, H. Häkkinen, Nonappa, T. Pradeep
46. Hydrogen bonding directed colloidal self-assembly of nanoparticles into 2D crystals, capsids, and supracolloidal assemblies.
Nonappa, O. Ikkala
45. Polymer Nanowires with Highly Precise Internal Morphology and Topography
T. Pelras, C. S. Mahon, Nonappa, O. Ikkala, A. H. Gröschel, M. Müllner
Inverse thermoreversible mechanical stiffening and birefringence in methylcellulose/cellulose nanocrystal hydrogel
V. Hynninen, S.Hietala, J. R. McKee, L. Murtomäki, O. J. Rojas, O. Ikkala, Nonappa
Crystalline Cyclophane-Protein Cage Frameworks
N. K. Beyeh, Nonappa, V. Liljeström, J. Mikkilä, A. Korpi, D. Bochicchio, G. M. Pavan, O. Ikkala, R. H. A. Ras, M. A. Kostiainen
Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose
T. Pääkkönen, P. Spiliopoulos, Nonappa, K. S. Kontturi, P. Penttilä, M. Viljanen, K. Svedström, E. Kontturi
Methyl cellulose/cellulose nanocrystal nanocomposite fibers with high ductility
V. Hynninen, P. Mohammadi, W. Wagermaier, S. Hietala, M. B. Linder, O. Ikkala, Nonappa
DNA origami directed 3D nanoparticle superlattice via electrostatic assembly
S. Julin, A. Korpi, Nonappa, B. Shen, V. Liljeström, O. Ikkala, A. Keller, M. A. Kostiainen
Infinite coordination polymer networks: Metallogelation of aminopyridine conjugates and in situ silver nanoparticle formation.
R. Tatikonda, E. Bulatov, Z. Özdemir, Nonappa, M. Haukka.
Soft cellulose II nanospheres: sol–gel behaviour, swelling and material synthesis.
M. Beaumont, S. Rosenfeldt, B. L. Tardy, C. Gusenbauer, A. Khakalo, Nonappa, M. Opietnik, A. Potthast, O. J. Rojas, T. Rosenau